Crystallizer Patents (Class 422/245.1)
  • Patent number: 10920257
    Abstract: Disclosed herein is a method of producing D-psicose. The method of producing D-psicose includes subjecting D-fructose to D-psicose epimerization to produce a D-psicose-containing solution, subjecting the D-psicose-containing solution to first cooling and ion purification, subjecting the purified D-psicose-containing solution to first concentration and second cooling, subjecting the D-psicose-containing solution, which has been subjected to first concentration and second cooling, to chromatography to obtain a D-fructose-containing mother liquor and a D-psicose-containing separated solution, and subjecting the D-psicose-containing separated solution to second concentration and third cooling to obtain D-psicose crystals, wherein the D-fructose-containing mother liquor produced by chromatography is reused in the D-psicose epimerization.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: February 16, 2021
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Joo Hang Lee, Min Hoe Kim, Seong Bo Kim, Seung Won Park
  • Patent number: 10822666
    Abstract: A method for obtaining crystals from a mother solution operates such that mother solution is fed into a crystallisation device. Supersaturation of the mother solution is brought about by open and/or closed-loop control of the temperature (?). Seed crystals are added to the mother solution at a seeding point (Sp). The seed crystals are grown as nuclei by continuous closed-loop process control and are finally removed from the method as crystals. They form the product yield. The formation of crystal nuclei in the mother solution is countered by steps in the closed-loop process control. During the closed-loop process control and the crystallisation procedure, the position of the limit (M) of the formation of secondary nuclei is determined using sensors that detect data currently, wherein the position of the limit (M) is established as a value of the concentration (c) and the temperature (?) from these data.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: November 3, 2020
    Assignee: BMA Braunschweigische Maschinenbauanstalt AG
    Inventors: Jens Mahrholz, Andreas Lehnberger
  • Patent number: 10138133
    Abstract: The present invention provides a continuous process for producing ammonium sulfate crystals, wherein said process comprises: i) feeding to a series of crystallization sections, which crystallization sections are heat integrated in series, a solution of ammonium sulfate; ii) crystallizing ammonium sulfate crystals from said solution of ammonium sulfate; iii) purging a fraction of the solution of ammonium sulfate from each of said crystallization sections; and iv) discharging ammonium sulfate crystals from each crystallization section, characterized in that: a fraction of said solution of ammonium sulfate is purged from at least one crystallization section to at least one other crystallization section; and an apparatus suitable for producing ammonium sulfate crystals.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: November 27, 2018
    Assignee: CAP III B.V.
    Inventors: Geert Ekkelenkamp, Johannes Elisabeth Pierre Debeij, Robert Geertman, Peter Van Ysacker, Johan Thomas Tinge
  • Patent number: 10093546
    Abstract: The present disclosure provides devices and systems that utilize concurrent and countercurrent exchange platforms to produce purified silicon.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: October 9, 2018
    Assignee: Milwaukee Silicon LLC
    Inventor: M. Robert Showalter
  • Patent number: 10058838
    Abstract: A method is provided of shutting down an operating three-phase slurry bubble column reactor (10) having downwardly directed gas distribution nozzles (30) submerged in a slurry body (19) of solid particulate material suspended in a suspension liquid contained inside a reactor vessel (12), with the gas distribution nozzles (30) being in flow communication with a gas feed line (26) through which gas is fed to the gas distribution nozzles (30) by means of which the gas is injected downwardly into the slurry body (19). The method includes abruptly stopping flow of gas from the gas feed line (26) to the gas distribution nozzles (30) to trap gas in the gas distribution nozzles (30) thereby to inhibit slurry ingress upwardly into the gas distribution nozzles (30).
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: August 28, 2018
    Assignee: SASOL TECHNOLOGY PROPRIETARY LIMITED
    Inventors: André Peter Steynberg, Darrell Duane Kinzler
  • Patent number: 9682332
    Abstract: Described is a device for inducing crystal nucleation in a crystallizer. The device comprises a vessel for fluid and a surface abrader, wherein the surface abrader is configured to abrade a surface within the vessel to induce crystal nucleation. The friction of the abrader against the surface within the vessel creates nano-sized particulates which induce crystal nucleation. Crystal growth can then take place in the crystallizer. Also described is a crystallization apparatus comprising the device and a crystallization process using the device or similar. The device is significantly cheaper and more reliable than known ultrasound devices and facilitates the separation of crystal nucleation and crystal growth. The device also enables the avoidance of the use of seeding as a source of secondary nucleation.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: June 20, 2017
    Assignee: Heriot Watt University
    Inventors: Xiongwei Ni, Craig James Callahan
  • Patent number: 9492800
    Abstract: Herein is disclosed a comprehensive mixer performance estimation method that can be applied to the mixers of the rotor-stator type having various configurations and circulation systems. Specifically, the performance estimation method for the mixers of the rotor-stator type includes the steps of: obtaining the homogenization index: H.I. for each of the mixers, measuring the size of each of the mixers, the powder requirements and flow rates during the running time of each of the mixers, estimating the magnitude (smallness or greatness) of the configuration dependent term value of each of the mixer as whole which is specific to each of the mixers, and estimating the performance of each of the mixers accordingly.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: November 15, 2016
    Assignee: Meiji Co., Ltd.
    Inventor: Tetsu Kamiya
  • Patent number: 9431144
    Abstract: The present invention relates to an indium oxide film formed by chemical vapor deposition or atomic layer deposition, or to an oxide film containing indium, and to a method for forming same. By chemical vapor deposition or atomic layer deposition, wherein an indium material that is a liquid at room temperature is used, an oxide film containing indium can be formed on a substrate having a large area, and particularly a substrate for manufacturing a display device.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: August 30, 2016
    Assignee: UP Chemical Co., Ltd.
    Inventors: Wonyong Koh, Byungsoo Kim, Dong Hwan Ma
  • Patent number: 9404177
    Abstract: Embodiments of an obstructing member and methods for its use in a fluidized bed reactor are disclosed. The obstructing member comprises a plurality of receiving members, each receiving member comprising a tubular wall defining a passageway dimensioned to receive an internal reactor component, and a plurality of connecting elements connecting the receiving members, wherein the obstructing member occupies from 15-60% of a horizontal cross-section of a reaction chamber of the fluidized bed reactor.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: August 2, 2016
    Assignee: REC Silicon Inc
    Inventors: Michael V. Spangler, Matthew J. Miller
  • Patent number: 9161456
    Abstract: A method of making a micro-wire rib structure includes providing a substrate and locating a curable layer on or over the substrate. The curable layer is imprinted and cured to form a cured layer including a cured-layer surface and a micro-channel having a micro-channel depth, a micro-channel bottom, first and second micro-channel sides, and one or more ribs having opposing rib sides and a rib top defining a rib height less than the micro-channel depth. Each rib is located between the first and second micro-channel sides and extends from the micro-channel bottom toward the cured-layer surface. A curable conductive material is located in the micro-channel and cured to provide a cured electrical conductor forming a micro-wire in the micro-channel.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 13, 2015
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Ronald Steven Cok, Mitchell Stewart Burberry
  • Patent number: 9095783
    Abstract: An arrangement and a method for producing high-purity crystals, such as temperature-sensitive pharmaceutical agents, in a countercurrent crystallization process. The arrangement comprises a plurality of crystallizers, mother liquor lines, each of which has a shut-off valve, and crystallization product lines, each of which has a shut-off valve, so that a mother liquor flow can be generated which is directed from a crystallizer to the second-next crystallizer in the direction of decreasing purity, and a crystallization product flow can be generated which is directed from a to dissolved crystallization product that is about to crystallize to the next crystallizer in the direction of higher purity.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: August 4, 2015
    Assignee: HAPILA GmbH
    Inventors: Detlef Grawe, Robert Eilers, Sabine Gliesing
  • Publication number: 20150140474
    Abstract: The present invention provides a method for producing metal-supported carbon, which includes supporting metal microparticles on the surface of carbon black, by a liquid-phase reduction method, in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, as well as a method for producing crystals comprising fullerene molecules and fullerene nanowhisker/nanofiber nanotubes, which includes uniformly stirring and mixing a solution containing a first solvent having fullerene dissolved therein, and a second solvent in which fullerene is less soluble than in the first solvent, in a thin film fluid formed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 21, 2015
    Applicant: M. TECHNIQUE CO., LTD.
    Inventor: Masakazu ENOMURA
  • Patent number: 8992682
    Abstract: A graphite crucible for silicon single crystal manufacturing by the Czochralski method, having a long life cycle, contains at least one gas venting hole provided in a corner portion of the crucible. Gas generated by reaction between the graphite crucible and a quartz crucible is released to the outside through the gas venting hole, and formation of SiC on the surface of the graphite crucible and deformation of the quartz crucible caused by the pressure of the generated gas are prevented.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: March 31, 2015
    Assignee: Siltronic AG
    Inventors: Hideo Kato, Hideaki Murakami, Mikio Suehiro
  • Publication number: 20150044113
    Abstract: A potash-extraction system and method for extracting potash from a brine containing potash without the use of water-consuming evaporation ponds or additional chemicals is disclosed. The potash processing system uses a mechanical-vapor recompression (“MVR”) cycle to separate salt and then potash from a sylvinite brine containing salt and potash. In embodiments, the latent heat recovered from condensing vapor may be used to boil the brine to precipitate some salt and remove some water (in the form of water vapor) from the brine. The remaining potash-concentrated brine may then be cooled to precipitate potash from the solution. The precipitated potash may then be further processed for final use.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 12, 2015
    Applicant: UTAH STATE UNIVERSITY
    Inventors: J. Clair Batty, Brett Boissevain
  • Publication number: 20140348739
    Abstract: Systems and a method for forming carbon nanotubes are described. A method includes forming carbon nanotubes in a reactor, using a Bosch reaction. The carbon nanotubes are separated from a reactor effluent to form a waste gas stream. The feed gas, a dry waste gas stream, or both, are heated with waste heat from the waste gas stream. The waste gas stream is chilled in an ambient temperature heat exchanger to condense water vapor, forming a dry waste gas stream.
    Type: Application
    Filed: December 12, 2012
    Publication date: November 27, 2014
    Inventors: Robert D. Denton, Dallas B. Noyes
  • Publication number: 20140348721
    Abstract: The present invention relates to single walled and multi-walled carbon nanotubes (CNTs), functionalized CNTs and carbon nanotube composites with controlled properties, to a method for aerosol synthesis of single walled and multi-walled carbon nanotubes, functionalized CNTs and carbon nanotube composites with controlled properties from pre-made catalyst particles and a carbon source in the presence of reagents and additives, to functional, matrix and composite materials composed thereof and structures and devices fabricated from the same in continuous or batch CNT reactors. The present invention allows all or part of the processes of synthesis of CNTs, their purification, doping, functionalization, coating, mixing and deposition to be combined in one continuous procedure and in which the catalyst synthesis, the CNT synthesis, and their functionalization, doping, coating, mixing and deposition can be separately controlled.
    Type: Application
    Filed: June 30, 2014
    Publication date: November 27, 2014
    Inventors: Esko KAUPPINEN, David P. BROWN, Albert G. NASIBULIN, Hua JIANG, Anna MOISALA
  • Publication number: 20140322094
    Abstract: Method and apparatus are presented for synthesis SWNT (single wall) or MWNT (multiple walls) of the carbon nanotube structure. According to the invention the very long length of the carbon tube can be synthesized in the spiral threaded holes of the rotating cylinders using the electromagnetic resonance phenomena.
    Type: Application
    Filed: April 27, 2013
    Publication date: October 30, 2014
    Inventors: Jian Wang, Alexandre Charapov
  • Patent number: 8834628
    Abstract: A method is described for the manufacture of semiconductor nanoparticles. Improved yields are obtained by use of a reducing agent or oxygen reaction promoter.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: September 16, 2014
    Assignee: Life Technologies Corporation
    Inventors: Donald A. Zehnder, Joseph Treadway
  • Publication number: 20140256984
    Abstract: The invention in some aspects relates to devices and methods for nucleating crystals under controlled conditions. In some aspects of the invention, devices and methods are provided for continuous crystallization.
    Type: Application
    Filed: February 6, 2014
    Publication date: September 11, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Allan Stuart Myerson, Shin Yee Wong
  • Publication number: 20140248739
    Abstract: A multi-ingot furnace for the growth of crystalline semiconductor material has one or more heating devices for heating a hot zone in which crucibles containing semiconductor material are received. At least one of the heating devices is arranged to apply a predetermined differential heat flux profile across a horizontal cross-section of the semiconductor material in one or more of the crucibles, the predetermined differential heat flux profile being selected in dependence the position of the one or more crucibles in an array. In this manner, the heating device can at least partially compensate for differences in the temperature across the semiconductor material that arises from its geometric position in the furnace. This reduces the possibility of defects such as dislocations during the growth of a crystalline semiconductor material. Associated methods are also disclosed.
    Type: Application
    Filed: July 19, 2012
    Publication date: September 4, 2014
    Inventors: Per Bakke, Egor Vladimirov, Pouria Homayonifar, Alexandre Teixeira
  • Patent number: 8821634
    Abstract: A high temperature furnace comprising hot zone insulation having at least one shaped thermocouple assembly port to reduce temperature measurement variability is disclosed. The shaped thermocouple assembly port has an opening in the insulation facing the hot zone that is larger than the opening on the furnace shell side of the insulation. A method for producing a crystalline ingot in a high temperature furnace utilizing insulation having a shaped thermocouple assembly port is also disclosed.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: September 2, 2014
    Assignee: GTAT Corporation
    Inventors: Ning Duanmu, Dean C. Skelton, Menahem Lowy, Dzung Duc Nguyen
  • Patent number: 8802048
    Abstract: Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 12, 2014
    Assignee: Intercontinental Potash Corp. (USA)
    Inventors: Steven L. Chastain, Michael J. Morrison, Richard W. Chastain, Donial M. Felton, Thomas H. Neuman
  • Publication number: 20140147367
    Abstract: A reaction-crystallization apparatus for carrying out reaction and/or solvent extraction and/or crystallization of soluble salts has an upper section having a top and a decanter. The decanter has a vertical vessel having a horizontal weir at the top of the upper section. The top of the upper section has an outlet for removing a light phase at the top of the decanter. The apparatus has a lower section, including a crystallizer. The crystallizer includes: a coaxial draft tube; a feed pipe; an agitator inside the draft tube; and at least one outlet at the bottom for crystal slurry removal. The apparatus has an intermediate section sandwiched between the lower section and the upper section such that the sections are in fluid communication and includes at least one coaxial vertical baffle with a gap between the draft tube and the coaxial vertical baffle and is adjustable by moving the baffle.
    Type: Application
    Filed: March 29, 2012
    Publication date: May 29, 2014
    Inventor: Tamar ZIV
  • Publication number: 20140116326
    Abstract: Reactor designs for use in ammonothermal growth of group-III nitride crystals. Internal heating is used to enhance and/or engineer fluid motion, gas mixing, and the ability to create solubility gradients within a vessel used for the ammonothermal growth of group-III nitride crystals. Novel baffle designs are used for control and improvement of continuous fluid motion within a vessel used for the ammonothermal growth of group-III nitride crystals.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Siddha Pimputkar, Derrick Shane Kamber, James S. Speck, Shuji Nakamura
  • Patent number: 8703065
    Abstract: A production saltwater disposal facility comprising a separator configured to receive production saltwater from a pipeline or a vehicle and separate hydrocarbons from the production saltwater, wherein the production saltwater received from the pipeline or vehicle is substantially the same composition as when the production saltwater was located in a subterranean formation, a hydrocarbon storage tank configured to receive hydrocarbons from the separator, a settling pit configured to receive the production saltwater from the separator and separate metals and/or other solids from the saltwater, an evaporator in fluid communication with the settling pit and comprising a nozzle configured to emit a stream of the saltwater along a path in air such that water in the saltwater evaporates, and a collection pit positioned under the path and configured to collect the salt from the saltwater after the water has evaporated.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: April 22, 2014
    Assignee: Hudgens Holdings, LLC
    Inventor: Dennis Hudgens
  • Patent number: 8702863
    Abstract: A method for the evaporative production of phenol-BPA adduct crystals in a crystallizer is provided. First, a supersaturated BPA solution is introduced into a crystallizer that includes a cylindrical vessel and a concentrically-disposed draft tube that defines an annular space between the vessel and tube. Next, the BPA solution is circulated through the draft tube and annular space while a coolant is uniformly distributed in the circulating flow by radially injecting a volatile hydrocarbon compound at between about 30% and 60% of a radial extent of the annular space of to form a BPA mixture. Phenol-BPA adduct crystals are produced in the vessel by evaporating the volatile hydrocarbon compound out of the BPA mixture. The method provides a consistent and uniform concentration of coolant across the surface of the boiling zone that prevents or at least reduces unwanted crystal nucleation.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: April 22, 2014
    Assignee: Badger Licensing LLC
    Inventor: Stephen W. Fetsko
  • Publication number: 20140072507
    Abstract: Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: INTERCONTINENTAL POTASH CORPORATION
    Inventors: Steven L. CHASTAIN, Michael J. MORRISON, Richard W. CHASTAIN, Donial M. FELTON, Thomas H. NEUMAN
  • Publication number: 20140073055
    Abstract: A nanovolume microcapillary crystallization system allows nanoliter-volume screening of crystallization conditions in a crystal card that allows crystals to either be removed for traditional cryoprotection or in situ X-ray diffraction studies on protein crystals that grow within. The system integrates formulation of crystallization cocktails with preparation of the crystallization experiments. The system allows the researcher to select either gradient screening in crystallization experiments for efficient exploration of crystallization phase space or a combination of sparse matrix with gradient screening to execute one comprehensive hybrid crystallization trial.
    Type: Application
    Filed: February 25, 2013
    Publication date: March 13, 2014
    Applicant: EMERALD BIOSTRUCTURES, INC.
    Inventor: EMERALD BIOSTRUCTURES, INC.
  • Patent number: 8668878
    Abstract: The present invention relates to a reaction vessel for crystallization of a sample from a solution and a covering foil and an arrangement for mounting the covering foil.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: March 11, 2014
    Assignee: Qiagen GmbH
    Inventors: Johann Kubicek, Bert Jungheim, Rainer Dahlke
  • Patent number: 8658123
    Abstract: Method for the production of a coarse-grained ammonium sulphate product by crystallization and installation for carrying out the method from an ammonium sulphate solution in a DTB type crystallizer having an internal suspension circuit and a clarifying zone, from which a clarified partial flow of solution is constantly drawn off into an external circuit, is heated in a heat exchanger to dissolve the solids contained therein and is guided back as a clear solution into the lower region of the crystallizer. A fine crystal suspension flow is drawn off from the clarifying zone as a further partial flow and guided back into the internal circuit of the crystallization stage without any previous dissolution of the solid proportion contained therein.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 25, 2014
    Assignee: GEA Messo GmbH
    Inventors: Günter Hofmann, Holger Leptien, Johannes Widua
  • Patent number: 8652417
    Abstract: A set of crystallization solutions includes a plurality of crystallization solutions of Crystallization Solution Set I, a plurality of crystallization solutions of Crystallization Solution Set II or a plurality of crystallization solutions of Crystallization Solution Set III.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Microlytic APS
    Inventor: Morten Sommer
  • Patent number: 8641823
    Abstract: Reactor designs for use in ammonothermal growth of group-III nitride crystals. Internal heating is used to enhance and/or engineer fluid motion, gas mixing, and the ability to create solubility gradients within a vessel used for the ammonothermal growth of group-III nitride crystals. Novel baffle designs are used for control and improvement of continuous fluid motion within a vessel used for the ammonothermal growth of group-III nitride crystals.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: February 4, 2014
    Assignee: The Regents of the University of California
    Inventors: Siddha Pimputkar, Derrick S. Kamber, James S. Speck, Shuji Nakamura
  • Publication number: 20140030164
    Abstract: Disclosed are systems and methods for processing carnallite or sylvinite ores. The system includes a measuring hopper, a lye clarifier, two vertical ore dissolving apparatuses, two ore dehydrators and one wet product dehydrator, a crystallizer, and a dryer. Each dissolving apparatus has alternating supply and grounding electrodes arranged in axial alignment with the apparatus. The ore is run through both dissolving apparatuses in succession and dehydrated after each dissolving apparatus. A dissolving lye is fed to each dissolving apparatus in countercurrent flow to the solid phase ore. The saturated lye from the dissolving apparatuses is transported to a crystallizer to be cooled. Cooling the lye forms crystalline potassium chloride or artificial carnallite, which then goes for dehydration and drying.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Applicant: Bio Techno Terra, LLC
    Inventors: Valery Marakov, Alexey Zarubin
  • Patent number: 8636973
    Abstract: The present invention relates to means and methods for producing crystals or crystalline substances. In particular, crystals or crystalline substances which are useful as pharmaceutical ingredients can be manufactured.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: January 28, 2014
    Assignee: Biosyn Arzneimittel GmbH
    Inventors: Thomas Stiefel, Ortwin Kottwitz
  • Publication number: 20140017141
    Abstract: Embodiments of the inventive concept provide a successive gas hydrate manufacturing device, without hydration after generating gas hydrate slurry, capable of operating with a higher conversion rate and relatively low hydrate generation pressure and reducing a product cost by decreasing the number of processing steps for removing heat of reaction, for which the total exothermic value downs due to no need of latent heat according to a phase change rather than the case of generating a gas hydrate directly from a water solution, as well as making gas diffusion easier during reaction of generation and maximizing a contact area between water and gas to increase a gas capture rate and shorten the total hydrate generation time.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 16, 2014
    Inventors: Cheol-Ho Kim, Ho-Kyoung Kim, Jae-Ik Lee, Tae-Seok Jeong, Joo-Ho Heo, Jae-Woong Shin
  • Publication number: 20130345451
    Abstract: A process to produce a dry purified furan-2,5-dicarboxylic acid (FDCA) is described. After oxidation of 5-(hydroxymethyl)furfural (5-HMF), a crude FDCA stream is produced that is fed to a crystallization zone followed by a solid-liquid displacement zone to form a low impurity slurry stream. The solids in the low impurity slurry stream are dissolved in a dissolution zone to produce a hydrogenation feed that is hydrogenated in a hydrogenation reactor to generate a hydrogenated FDCA composition. The hydrogenated FDCA composition is routed to a crystallization zone to form a crystallized produce stream that is separated from liquid in a solid-liquid separation zone to generate a purified wet cake stream containing FDCA that can be dried in a drying zone to generate a dry purified FDCA product stream.
    Type: Application
    Filed: February 4, 2013
    Publication date: December 26, 2013
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Ashfaq Schahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
  • Patent number: 8609059
    Abstract: To provide a production method for a nitride crystal, where a nitride crystal can be prevented from precipitating in a portion other than on a seed crystal and the production efficiency of a gallium nitride single crystal grown on the seed crystal can be enhanced. In a method for producing a nitride crystal by an ammonothermal method in a vessel containing a mineralizer-containing solution, out of the surfaces of said vessel and a member provided in said vessel, at least a part of the portion coming into contact with said solution is constituted by a metal or alloy containing one or more atoms selected from the group consisting of tantalum (Ta), tungsten (W) and titanium (Ti), and has a surface roughness (Ra) of less than 1.80 ?m.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: December 17, 2013
    Assignees: Mitsubishi Chemical Corporation, Tohoku University, The Japan Steel Works, Ltd.
    Inventors: Yutaka Mikawa, Makiko Kiyomi, Yuji Kagamitani, Toru Ishiguro, Yoshihiko Yamamura
  • Patent number: 8580036
    Abstract: The method and apparatus includes a vessel having a bottom and sidewalls arranged to house the material in a molten state. A temperature controlled horizontally oriented, cooling plate is movable into and out of the top of the molten material. When the cooling plate is lowered into the top of the melt, an ingot of solid silicon is solidified downwards.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: November 12, 2013
    Assignee: Elkem Solar AS
    Inventor: Kenneth Friestad
  • Patent number: 8574525
    Abstract: Boron-containing compounds, gasses and fluids are used during ammonothermal growth of group-Ill nitride crystals. Boron-containing compounds are used as impurity getters during the ammonothermal growth of group-Ill nitride crystals. In addition, a boron-containing gas and/or supercritical fluid is used for enhanced solubility of group-Ill nitride into said fluid.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: November 5, 2013
    Assignee: The Regents of the University of California
    Inventors: Siddha Pimputkar, Derrick S. Kamber, James S. Speck, Shuji Nakamura
  • Publication number: 20130281721
    Abstract: Processes and apparatus for purifying brine are provided including (1) providing an aqueous brine solution comprising one or more inorganic salts and one or more organic compounds and (2) conducting at least one unit operation for removing organic compounds from the brine solution to obtain a purified brine solution.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Bruce Hook, Dan Tirtowidjojo, Anil Mehta
  • Patent number: 8562882
    Abstract: The invention relates to a method for the continuous production of semicrystalline polycondensate pellets. Said method comprises the following steps: producing a polycondensate material; shaping polycondensate pellets and solidifying the polycondensate melt in a liquid cooling medium, wherein the shaping of the pellets can be carried out prior to or after solidification; separating the pellets from the liquid cooling medium once the polycondensate pellets have cooled down to an average temperature that lies within the crystallization temperature range of the polycondensate; and crystallizing the pellets in a treatment chamber, the treatment gas being led in said treatment chamber in a countercurrent to the polycondensate pellets, the flow rate of the treatment gas being above the incipient fluidization point of the polycondensate pellets and the polycondensate pellets having a narrow dwell time spectrum in the treatment chamber.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: October 22, 2013
    Assignee: Bühler AG
    Inventors: Fernando Eusebio, Brent Allan Culbert, Andreas Christel, Peter Locker
  • Patent number: 8557882
    Abstract: A method for preparing contaminated plastics ground into flakes, such as RPET or such polymers, having at least decontamination and SSP treatment steps, with at least one reactor, with heating to the process temperature taking place essentially outside the reactor. Also, a device for carrying out the method, and having at least one decontamination reactor and at least one SSP reactor, a device for heating plastic flakes to the process temperature being arranged upstream of the decontamination reactor. Also an SSP reactor having at least two individual reactors, and preferably between 3 and 7 individual reactors.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 15, 2013
    Assignee: Krones AG
    Inventors: Thomas Friedlaender, Thomas Rieckmann, Frank Marx
  • Patent number: 8551429
    Abstract: Methods of forming potassium sulfate include calcining polyhalite ore particles to convert the polyhalite ore particles to a water-soluble composition. At least a portion of the water-soluble composition is dissolved in an aqueous medium to form an aqueous solution comprising K+, Mg2+, and SO42? ions and a calcium-containing solid. The calcium-containing solid is separated from the aqueous solution to form a filtrate comprising K+, Mg2+, and SO42? ions. A potassium-containing salt is dissolved in the filtrate to increase the concentration of K+ and SO42? ions to from a concentrated liquor, and K2SO4 is crystallized from the concentrated liquor. A system for processing polyhalite ore includes a countercurrent leaching apparatus, a first mix tank, an evaporator, and at least one crystallizer.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: October 8, 2013
    Assignee: Intercontinental Potash Corp. (USA)
    Inventors: Thomas H. Neuman, Richard W. Chastain, Donial M. Felton, Daniel C. Neuman, Otto C. Schnauber
  • Patent number: 8546522
    Abstract: Provided are a method for preparing fine round powdery polycarbonate and a method for preparing a high molecular weight polycarbonate resin using the same. More specifically, provided are a method for preparing fine round powdery polycarbonate, comprising (A) polymerizing non-phosgene polycarbonate, (B) extruding the polycarbonate into fine round powdery amorphous polycarbonate, (C) surface-crystallizing the fine round powdery amorphous polycarbonate in the presence of a solvent or dispersion medium, and (D) drying the surface-crystallized fine round powdery polycarbonate, and a method for preparing high molecular weight polycarbonate resin capable of obtaining polycarbonates with various molecular weights ranging from low molecular weights to high molecular weights by continuously using the obtained fine round powdery polycarbonate via a solid state polymerization step.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 1, 2013
    Assignee: Lotte Chemical Corporation
    Inventors: Se Hoon Kim, Sang Hyun Park, Young Koan Ko
  • Publication number: 20130247334
    Abstract: The present invention relates to a crucible that can be used for solidifying a silicon ingot from molten silicon, characterized in that same is at least partially coated on the inner surface thereof with at least one layer consisting of a material produced by thermal decomposition of polysilizane(s), said layer having a shear strength greater than 1 Pa and no higher than 500 MPa, and being in the form of a stack of adjoining layers of non-contiguous tiles. The invention also relates to a method for preparing such crucibles.
    Type: Application
    Filed: August 26, 2011
    Publication date: September 26, 2013
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Charles Huguet, Emmanuel Flahaut, Hélène Lignier
  • Publication number: 20130230446
    Abstract: Method for the production of a coarse-grained ammonium sulphate product by crystallization and installation for carrying out the method. A method for the continuous production of a coarse-grained ammonium sulphate product from an ammonium sulphate solution in a crystallizer operates in accordance with the DTB principle and has an internal suspension circuit and a clarifying zone, from which a clarified partial flow of solution is constantly drawn off into an external circuit, is heated in a heat exchanger so as to dissolve the solids contained therein and is then guided back as a clear solution into the lower region of the crystallizer. In order to ensure production of a product crystallizate with a grain coarseness which is practically constant over time, a fine crystal suspension flow may be drawn off from the clarifying zone as a further partial flow and guided back into the internal circuit of the crystallization stage without any previous dissolution of the solid proportion contained therein.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: GEA Messo GmbH
    Inventors: Guenter Hofmann, Holger Leptien, Johannes Widua
  • Patent number: 8486158
    Abstract: The invention proposes a method and a device for continuously producing a crystallite, wherein a metered amount of seed crystals is fed continuously to the internal solution circuit of a crystallizer, in particular a DTB crystallizer, through a crystallization seed line from a seed generator preferably designed as a flash crystallizer. The amount of seed crystals fed is controlled by an electronic control system as a function of a measured value determined by a sensor, said value being representative of the particle size distribution of the crystallites in the solution in the internal circuit in the crystallizer. By way of a line, the seed generator receives a partial stream of the external solution circuit of the crystallizer, said external circuit being routed through a line. Excess fine crystalline suspension can be fed back to the external circuit from the seed generator by way of a return line.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: July 16, 2013
    Assignee: GEA Messo GmbH
    Inventors: Reinhard Scholz, Günter Hofmann
  • Publication number: 20130164424
    Abstract: A process is provided for preparing a salt product with reduced sodium content including the step of providing a concentrated brine, which is typically seawater, to which has been added potassium chloride. The mixture is transferred to a crystalliser unit where at least a portion of the mix is transferred to the crystalliser through a washing column. Liquid is evaporated from the crystalliser such that crystals form, crystals are passed from the crystalliser through said washing column to a separating unit such that in the passing through the washing column the crystals are rinsed with the brine portion being transferred as a counter current through the column. The inventive process is characterised by recycling of the brine from which the salt crystallises, thus all main ingredients of the mixed input brine reach a steady equilibrium concentration in the mother liquor in the crystalliser.
    Type: Application
    Filed: June 20, 2011
    Publication date: June 27, 2013
    Applicant: ARCTIC SEA SALT
    Inventors: Egill Einarsson, Eidur Helgi Sigurjonsson
  • Publication number: 20130149232
    Abstract: The present invention relates to means and methods for producing crystals or crystalline substances. In particular, crystals or crystalline substances which are useful as pharmaceutical ingredients can be manufactured.
    Type: Application
    Filed: June 22, 2011
    Publication date: June 13, 2013
    Applicant: BIOSYN ARZNEIMITTEL GMBH
    Inventors: Thomas Stiefel, Ortwin Kottwitz
  • Publication number: 20130121900
    Abstract: Methods of forming potassium sulfate include calcining polyhalite ore particles to convert the polyhalite ore particles to a water-soluble composition. At least a portion of the water-soluble composition is dissolved in an aqueous medium to form an aqueous solution comprising K+, Mg2+, and SO42? ions and a calcium-containing solid. The calcium-containing solid is separated from the aqueous solution to form a filtrate comprising K+, Mg2+, and SO42? ions. A potassium-containing salt is dissolved in the filtrate to increase the concentration of K+ and SO42? ions to from a concentrated liquor, and K2SO4 is crystallized from the concentrated liquor. A system for processing polyhalite ore includes a countercurrent leaching apparatus, a first mix tank, an evaporator, and at least one crystallizer.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 16, 2013
    Applicant: INTERCONTINENTAL POTASH CORP. (USA)
    Inventor: Intercontinental Potash Corp. (USA)