Alicyclic Compound Synthesis Patents (Class 585/350)
  • Patent number: 11926793
    Abstract: Systems and methods are provided for improving product yields and/or product quality during co-processing of fast pyrolysis oil in a fluid catalytic cracking (FCC) reaction environment. The systems and methods can allow for co-processing of an increased amount of fast pyrolysis oil while reducing or minimizing coke production for a feedstock including fast pyrolysis oil and a conventional FCC feed. The reducing or minimizing of coke production can be achieved in part by adding a low molecular weight, non-ionic surfactant to the mixture of fast pyrolysis oil and conventional FCC feed.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: March 12, 2024
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Xiaochun Xu, Hyung Rae Kim, Chengrong Wang, Colin L. Beswick
  • Patent number: 11534746
    Abstract: This disclosure relates to red mud compositions. This disclosure also relates to methods of making red mud compositions. This disclosure additionally relates to methods of using red mud compositions.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: December 27, 2022
    Assignee: UTAH STATE UNIVERSITY
    Inventors: Foster Agblevor, Hossein Jahromi, Oleksandr Hietsoi, Shereen Hassan
  • Patent number: 10882037
    Abstract: A process and apparatus is disclosed for distributing a gas stream into a downwardly flowing catalyst stream in a vessel by feeding the gas stream into a center of the vessel or the catalyst stream into a hollow cap. The gas stream enters the cap and exits the cap flowing upwardly to contact the catalyst stream.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 5, 2021
    Assignee: UOP LLC
    Inventors: Jeffrey R. Grott, Michael J. Vetter, Jennifer J. Ozmen, Quan Yuan
  • Patent number: 10131723
    Abstract: The present invention relates to a compound represented by the chemical formula 1, a catalyst system for olefin oligomerization comprising the same, and a method for oligomerizign olefins using the same, and the catalyst system for olefin oligomerization according to the present invention has excellent catalytic activity as well as high selectivity for 1-hexene or 1-octene, thereby enabling more efficient preparation of alpha-olefins.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: November 20, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yong Ho Lee, Seul Ki Im, Eun Ji Shin, Ki Soo Lee, Jin Young Park, Seok Pil Sa, Yoon Ki Hong
  • Publication number: 20150123039
    Abstract: The invention relates to a rotary disc device (1) in a rotary fluidised bed, the outer edge of said disc rotating inside, and faster than, the fluidised bed, thereby allowing: the rotation speed of the fluidised bed to be accelerated, solid particles and/or micro-droplets to be supplied to the fluidised bed or to the free central area, and different annular areas of the fluidised bed to be separated. The invention also relates to methods for transforming solid particles or micro-droplets on contact with the fluids flowing through the rotary fluidised bed or for transforming fluids on contact with solids in suspension in the rotary fluidised bed, using said device.
    Type: Application
    Filed: April 4, 2013
    Publication date: May 7, 2015
    Inventor: Axel De Broqueville
  • Patent number: 9012707
    Abstract: The invention relates to a process for the autothermal gas-phase dehydrogenation of a hydrocarbon-comprising gas stream by means of an oxygen-comprising gas stream over a heterogeneous catalyst configured as a monolith to give a reaction gas mixture and regeneration of the catalyst in a reactor in the form of a cylinder or prism, wherein the reactor is operated alternately in the production mode of the autothermal gas-phase dehydrogenation and in the regeneration mode.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: April 21, 2015
    Assignee: BASF SE
    Inventors: Gerhard Olbert, Ulrike Wegerle, Grigorios Kolios, Albena Kostova
  • Patent number: 8859779
    Abstract: Catalytic complexes including a metal atom having anionic ligands, at least one nucleophilic carbene ligand, and an alkylidene, vinylidene, or allenylidene ligand. The complexes are highly stable to air, moisture and thermal degradation. The complexes are designed to efficiently carry out a variety of olefin metathesis reactions.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: October 14, 2014
    Assignee: Materia, Inc.
    Inventors: Steven P. Nolan, Jinkun Huang
  • Patent number: 8829257
    Abstract: Disclosed herein is a process for making 1,2,4-trivinylcyclohexane that is enriched in a particular geometric isomer. The process involves the thermal isomerization of 1,5,9-cyclododecatriene at temperature between 400° C. and 600° C. followed by an equilibration of the resultant intermediate in either the gas phase or liquid phase at temperature between 180° C. and 375° C. and at pressures ranging from 0.101 kPa to 1,013 kPa. Also disclosed are 1,2,4-trivinylcyclohexane compositions that are enriched in a particular geometric isomer.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: September 9, 2014
    Assignee: Momentive Performance Materials Inc.
    Inventors: Richard W. Cruse, Vivek Khare, Jozef Kowalski, Wlodzimierz Stanczyk
  • Patent number: 8802019
    Abstract: A reactor includes an essentially horizontal cylinder for carrying out an autothermal gas-phase dehydrogenation of a hydrocarbon-comprising gas stream using an oxygen-comprising gas stream to give a reaction gas mixture over a heterogeneous catalyst configured as monolith. The interior of the reactor is divided by a detachable, cylindrical or prismatic housing, which is arranged in the longitudinal direction of the reactor and is gastight in the circumferential direction, into an inner region having one or more catalytically active zones, each having a packing composed of monoliths stacked on top of one another, next to one another and behind one another and before each catalytically active zone in each case a mixing zone having solid internals are provided and into an outer region, which is supplied with an inert gas, arranged coaxially to the inner region. A heat exchanger is connected to the housing at one end of the reactor.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: August 12, 2014
    Assignee: BASF SE
    Inventors: Gerhard Olbert, Ulrike Wegerle, Grigorios Kolios, Albena Kostova, Jasmina Kessel, Alexander Weck, Alireza Rezai
  • Publication number: 20140171706
    Abstract: Methods and apparatuses for forming low-aromatic high-octane product streams and methods for processing hydrocarbons are provided. In an embodiment, a method for forming a low-aromatic high-octane product stream includes deisohexanizing or deisoheptanizing a hydrocarbon stream and forming a cycloalkane-rich stream. Further, the method includes isomerizing the cycloalkane-rich stream at equilibrium conditions favoring formation of cyclopentanes over cyclohexanes.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: UOP LLC
    Inventor: Bryan K. Glover
  • Patent number: 8592498
    Abstract: Disclosed herein are a reaction method and a production method of an organic compound which are capable of achieving high reaction selectivity according to the purpose and a high production rate of a target substance. The methods include at least two fluids, wherein at least one kind of the fluids is a fluid containing at least one organic compound and at least one kind of the fluids other than the above fluid is a fluid containing at least one reactant in the form of a liquid or solution, and the respective fluids join together in a thin film fluid foamed 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, whereby an organic reaction is performed in the thin film fluid.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: November 26, 2013
    Assignee: M. Technique Co., Ltd.
    Inventor: Masakazu Enomura
  • Patent number: 8580140
    Abstract: There is provided a composition comprising (a) one or more cyclopropene complex, and (b) 0-10% water by weight based on the weight of said composition, wherein the mole ratio of cyclopropene in said composition to molecular encapsulating agent in said composition is 0.92:1 or higher, or wherein the composition is in the form of a powder and, in a two-dimensional image of a representative sample of said powder, 20% or more of the area of the images of the particles of said cyclopropene complex, based on the area of all the images of all the particles of said cyclopropene complex in said image of said sample, is in the form of particles of said cyclopropene complex that have width dimension of 10 micrometers or larger. Also provided is a process for making a composition comprising cyclopropene complex.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: November 12, 2013
    Assignee: Rohm and Haas Company
    Inventors: Richard Martin Jacobson, Philip John Ranly
  • Publication number: 20120209037
    Abstract: A fully synthetic aviation fuel or aviation fuel component is provided, having a total naphthenic content of more than 30 mass %, a mass ratio of naphthenic to iso-paraffinic hydrocarbon species of more than 1 and less than 15, a density (at 15° C.) of greater than 0.775 g·cm?3, but less than 0.850 g·cm?3, an aromatic hydrocarbon content of greater than 8 mass %, but less than 20 mass %, a freezing point of less than ?47° C., and a lubricity BOCLE WSD value of less than 0.85 mm. A process for preparing a fully synthetic coal-derived aviation fuel or aviation fuel component by blending a LTFT and a tar derived blend component is also provided, as is a method of producing a coal-derived, fully synthetic aviation fuel or aviation fuel component from coal gasifier tar and an LTFT derived fraction.
    Type: Application
    Filed: August 2, 2010
    Publication date: August 16, 2012
    Applicant: SASOL TECHNOLOGY (PTY) LTD
    Inventors: Carl Louis Viljoen, Miriam Ajam
  • Patent number: 8242318
    Abstract: Catalytic hydrogenation of a double bond, notably a C?C or C?N double bond, is carried out using a homogenous catalyst which is a complex of rhodium or other transition metal containing at least one ligand which is a nitrogenous organic base. Preferably the complex is phosphorus-free and the ligand is a bicyclic base having formula where R1 and R4 are hydrocarbon chains. R1 preferably is a saturated chain of two carbon atoms and R4 preferably is a saturated chain of three to five carbon atoms.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: August 14, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Li Jiang, Timothy Jones, Fenglou Zou
  • Publication number: 20120142983
    Abstract: Process for making a bio-diesel and a bio-naphtha and optionally bio-propane from a complex mixture of natural occurring fats & oils, wherein said complex mixture is subjected to a refining treatment for removing the major part of the non-triglyceride and non-fatty acid components, thereby obtaining refined oils; said refined oils are subjected to a fractionation step for obtaining: an unsaturated or substantially unsaturated, liquid or substantially liquid triglyceride part (phase L); and a saturated or substantially saturated, solid or substantially solid triglyceride part (phase S); and said phase L is transformed into alkyl-esters as bio-diesel by a transesterification; said phase S is transformed into linear or substantially linear paraffin's as the bio-naphtha: by an hydrodeoxygenation or from said phase S are obtained fatty acids that are transformed into linear or substantially linear paraffin's as the bio-naphtha by hydrodeoxygenation or decarboxylation of the free fatty acids or from said
    Type: Application
    Filed: July 13, 2010
    Publication date: June 7, 2012
    Applicant: TOTAL PETROCHEMICALS RESEARCH FELUY
    Inventors: Walter Vermeiren, François Bouvart, Nicolas Dubut
  • Publication number: 20120142918
    Abstract: A caged phosphine product is provided which can act as a ligand to form a metal complex. The metal complex can be used as a catalyst.
    Type: Application
    Filed: January 26, 2010
    Publication date: June 7, 2012
    Inventors: Ranbir Singh Padda, Martin Barry Smith, Gordon Findlay Docherty, Michael John Harrison
  • Patent number: 8183421
    Abstract: A method for producing biofuels from biomass in which a refined biomass material is introduced into a non-Faradaic electrochemical device, preferably at a temperature greater than or equal to about 150° C., and deoxygenated and/or decarboxylated in said device to produce an increased carbon chain fuel.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 22, 2012
    Assignee: Gas Technology Institute
    Inventor: Qinbai Fan
  • Publication number: 20110313222
    Abstract: One exemplary embodiment can be an apparatus for isomerizing a hydrocarbon stream rich in a C4 hydrocarbon and/or at least one of a C5 and C6 hydrocarbon. The apparatus can include: a first drier and a second drier adapted to receive a fluid including at least one reactant; and a reaction zone communicating with the first drier to receive the fluid including at least one reactant and with the second drier to receive the regenerant. Generally, the first drier operates at a first condition to dry the fluid including at least one reactant and the second drier operates at a second condition during regeneration with a regenerant. The regenerant is displaced from the drier using a down-flow regenerant displacement assembly.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Bryan S. Garney, Jocelyn C. Daguio, Kurt A. Detrick, Douglas A. Becci, David J. Shecterle, John M. Krupczak, Andrew D. Mezera
  • Patent number: 8057714
    Abstract: The present invention relates to a synthesis method of metal cyclopentadienide by direct reaction of dicyclopentadiene with a group 1 metal in the presence of an aprotic solvent. Unlike the conventional method depending on retro Diels-Alder reaction of dicyclopentadiene to generate indirectly cyclopentadiene, the method of the present invention favors generation of cyclopentadiene and metal cyclopentadienide as well by adding dicyclopentadiene directly when the reaction temperature reaches to the boiling point of a reaction solvent.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 15, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Yong gyu Han, Ki-soo Lee, Heon-yong Kwon, Jong-sang Park, Nicola Maggiarosa
  • Publication number: 20110178199
    Abstract: Disclosed herein are a reaction method and a production method of an organic compound which are capable of achieving high reaction selectivity according to the purpose and a high production rate of a target substance. The methods include at least two fluids, wherein at least one kind of the fluids is a fluid containing at least one organic compound and at least one kind of the fluids other than the above fluid is a fluid containing at least one reactant in the form of a liquid or solution, and the respective fluids join together in a thin film fluid foamed 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, whereby an organic reaction is performed in the thin film fluid.
    Type: Application
    Filed: September 11, 2008
    Publication date: July 21, 2011
    Applicant: M. Technique Co., Ltd.
    Inventor: Masakazu Enomura
  • Patent number: 7964763
    Abstract: This invention relates to a process for producing an oligomeric product by the oligomerization of at least one olefinic compound by contacting the at least one olefinic compound with an oligomerization catalyst in an aliphatic liquid medium at a reaction temperature of at least 50° C. The catalyst comprises the combination of a source of a transition metal; and a ligating compound of the formula (R1)m X1 (Y) X2 (R2)m.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: June 21, 2011
    Assignee: Sasol Technology (Pty) Limited
    Inventors: John Thomas Dixon, Esna Killian, Annette Bollmann, Richard Neil Walsh, Matthew James Overett, Kevin Blann, David Hedley Morgan
  • Patent number: 7902389
    Abstract: Catalytic complexes including a metal atom having anionic ligands, at least one nucleophilic carbine ligand, and an alkylidene, vinylidene, or allenylidene ligand. The complexes are highly stable to air, moisture and thermal degradation. The complexes are designed to efficiently carry out a variety of olefin metathesis reactions.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 8, 2011
    Inventors: Steven P. Nolan, Jinkun Huang
  • Publication number: 20100168454
    Abstract: Catalytic hydrogenation of a double bond, notably a C?C or C?N double bond, is carried out using a homogenous catalyst which is a complex of rhodium or other transition metal containing at least one ligand which is a nitrogenous organic base. Preferably the complex is phosphorus-free and the ligand is a bicyclic base having formula where R1 and R4 are hydrocarbon chains. R1 preferably is a saturated chain of two carbon atoms and R4 preferably is a saturated chain of three to five carbon atoms.
    Type: Application
    Filed: December 3, 2009
    Publication date: July 1, 2010
    Applicant: Schlumberger Technology Corporation
    Inventors: Li Jiang, Timothy Jones, Fenglou Zou
  • Patent number: 7727401
    Abstract: A process for purifying monoterpenes, including the steps of: providing a monoterpene comprising alpha terpinene of about 90% or greater purity and comprising an oxygen-containing impurity compound selected from the group consisting of 1,8-cineole, 1,4,-cineole, and mixtures thereof; providing an activated silica gel preparative chromatographic column; contacting the monoterpene with the column, wherein the oxygen-containing impurity compounds are retained on the column; recovering monterpenes depleted of oxygen-containing impurity compounds from the column by applying a pressure above atmospheric from a gas source without the use of a solvent; and removing the oxygen-containing impurity compounds by contacting the column with an alcohol.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: June 1, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Heather Regina Bowen
  • Patent number: 7622590
    Abstract: Catalytic complexes including a metal atom having anionic ligands, at least one nucleophilic carbene ligand, and an alkylidene, vinylidene, or allenylidene ligand. The complexes are highly stable to air, moisture and thermal degradation. The complexes are designed to efficiently carry out a variety of olefin metathesis reactions.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: November 24, 2009
    Assignee: University of New Orleans Foundation
    Inventors: Steven P. Nolan, Jinkun Huang
  • Patent number: 7618544
    Abstract: A fiber reaction process whereby reactive components contained in immiscible streams are brought into contact to effect chemical reactions and separations. The conduit reactor utilized contains wettable fibers onto which one stream is substantially constrained and a second stream is flowed over to continuously create a new interface there between to efficiently bring about contact of the reactive species and thus promote reactions thereof or extractions thereby. Co-solvents and phase transfer catalysts may be employed to facilitate the process.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 17, 2009
    Inventor: John Lee Massingill, Jr.
  • Publication number: 20080076946
    Abstract: The object of the present invention is to provide a process capable of producing cycloalkanol and/or cycloalkanone in excellent selectivity by oxidizing cycloalkane in a good degree of conversion. The present invention relates to a process for producing cycloalkanol and/or cycloalkanone, which comprises oxidizing cycloalkane with oxygen at 25 to 140° C. in the presence of mesoporous silica containing the group 8 and/or 9 element in the periodic table, wherein the content of phosphorus atom in the mesoporous silica is 0 to 4 mol % based on silicon atom. Said element is preferably cobalt and said mesoporous silica is preferably MCM-41.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 27, 2008
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masahiro HOSHINO, Hajime Ishida, Tatsuya Suzuki
  • Patent number: 7294748
    Abstract: The present invention provides compounds of Formula I: wherein: R1 is a label (e.g., a detectable groups; an anti-tumor agent)s; L is present or absent and when present is a linking group; and x represents an integer from 1 to 10; or a pharmaceutically acceptable salt thereof. The compounds are useful for, among other things, identifying cysteine sulfenic acids in proteins and monitoring oxidative damage in proteins and cells.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: November 13, 2007
    Assignee: Wake Forest University Health Sciences
    Inventors: Leslie B. Poole, S. Bruce King, Jacquelyn S. Fetrow
  • Patent number: 6777200
    Abstract: This invention provides novel compounds derived from a marine sponge, Adocia sp., that specifically modulat kinesin activity by targeting the kinesin motor domain and mimicking the activity a microtubule. The compounds act as potent anti-mitogens are useful in a wide variety of in vitro and in vivo applications.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: August 17, 2004
    Assignee: The Regents of the University of California
    Inventors: Lawrence S. B. Goldstein, David John Faulkner, Roman Sakowicz, Michael S. Berdelis, Christine L. Blackburn, Cordula Hopmann
  • Patent number: 6770618
    Abstract: Trans-2,2,6-trimethylcyclohexyl methyl ketone, including (1S,6R)-2,2,6-trimethylcyclohexyl methyl ketone represented by the formula (1a): and (1R,6S)-2,2,6-trimethylcyclohexyl methyl ketone represented by the formula (1b): are useful components in a perfume composition. A process for producing the same is also described. A unique eucalyptus, mint-like and white floral perfume material is provided using the ketone compounds disclosed in the present invention. The process of the present invention produces the optically active ketone compounds having optical purity up to at least 98.0 % e.e.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: August 3, 2004
    Assignee: Takasago International Corp.
    Inventors: Hideo Ujihara, Shinya Watanabe, Takeshi Yamamoto, Toshimitsu Hagiwara
  • Publication number: 20030212294
    Abstract: Poly(3-cyclopropyl-3-hydroxypropionates) (I) which are useful for the preparation of vinylcyclopropane and cyclopropylacetylene are disclosed. Methods for the preparation of a variety of intermediates obtained from (I) such as 3-cyclopropyl-3-hydroxypropionic acid and esters and salts thereof, 3-cyclopropylacrylic acid, and vinylcyclopropane also are disclosed.
    Type: Application
    Filed: April 16, 2003
    Publication date: November 13, 2003
    Inventors: John Clark Hubbs, Theresa Sims Barnette, Neil Warren Boaz
  • Patent number: 6605566
    Abstract: A novel supported bimetallic catalyst comprises a group VIII metal such as platinum, and tin, at least a portion of which interacts strongly with the group VIII metal in the catalyst in the reduced state. In the partially oxidized state, the catalyst of the invention contains at least 10% of tin in the form of a reduced tin species with oxidation state 0, said species having an isomer shift in the range 0.80 to 2.60 mm/s and a quadrupolar splitting in the range 0.65 to 2.00 mm/s. The invention also concerns the preparation of said catalyst, and processes using said catalyst for transforming hydrocarbons into aromatic compounds, such as gasoline reforming processes and aromatic production processes.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: August 12, 2003
    Assignee: Institut Francais du Petrole
    Inventors: Fabienne Le Peltier, Blaise Didillon, Jean-Claude Jumas, Josette Olivier-Fourcade
  • Publication number: 20030100809
    Abstract: The present invention relates to a process for separating the isoprene, 1,3-pentadiene and dicyclopentadiene from a C5 cuts, comprising dimerization of the cyclopentadiene and selective catalytic hydrogenation. The second extractive rectification step can be omitted, because the alkynes are removed through selective catalytic hydrogenation prior to the extractive rectification. As a result, the solvent-recovering units can be simplified, and thus the process as a whole can be optimized. Correspondingly, the investment and energy consumption, the operation cost, and finally the production cost can be substantially reduced.
    Type: Application
    Filed: September 27, 2002
    Publication date: May 29, 2003
    Inventors: Baoliang Tian, Puyang Li, Chunpeng Du, Hongfen Xu, Haiqiang Feng, Jingmin Hu, Jidong Gao, Ming Ma
  • Patent number: 6531107
    Abstract: The invention relates to structural subunits called “synthons” which are suitable for use in the design and manufacture of molecular nanostructures, machines, and devices. The synthon comprises polyhedra units and other species which exhibit rigid structural frameworks, the availability of stereo- and regiochemically directed substitution patterns, synthetic availability and accessability with substitutional control, diversity of available structural arrangements with said polyhedra units and related species, and connecting means which function to join adjacent synthons.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: March 11, 2003
    Assignee: Syracuse University
    Inventors: James T. Spencer, Damian G. Allis
  • Patent number: 6489134
    Abstract: This invention provides novel compounds derived from a marine sponge, Adocia sp., that specifically modulat kinesin activity by targeting the kinesin motor domain and mimicking the activity a microtubule. The compounds act as potent anti-mitogens are useful in a wide variety of in vitro and in vivo applications.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: December 3, 2002
    Assignee: The Regents of the University of California
    Inventors: Lawrence S.B. Goldstein, David John Faulkner, Roman Sakowicz, Michael S. Berdelis, Christine L. Blackburn, Cordula Hopmann
  • Publication number: 20020151757
    Abstract: This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 17, 2002
    Inventors: Kerry O. Boehner, Karl Z. Steigleder, Veronica Marie Godfrey, Paul R. Cottrell, Earl S. Lemberger
  • Patent number: 6441259
    Abstract: The present invention relates to a process for the preparation of highly purified tetracyclododecenes, which can be a raw material of cycloolefin (co)polymers possessing excellent characters concerning their optical property, high transparency, heat resistance, and oil absorbency, from an inexpensive raw material of crude DCPD in a stable, continuous, and longstanding process. In the continuous preparation of tetracyclododecenes described in the present invention, it is possible to employ crude dicyclopentadiene, that is, dicyclopentadiene having low purity, as a raw material. It is also possible to produce highly purified tetracyclododecenes by maintaining the ratios of one, two, or three compounds selected from the group comprising isoprene, piperylene, and 1-methyl-2-norbornenes shown by the general formula (4) against the sum of dicyclopentadiene and cyclopentadiene within the specified ranges, wherein all these substances are contained in the raw material that are fed into a reactor.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: August 27, 2002
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Fuyuki Aida, Takashi Suzuki, Yasuo Matsumura
  • Patent number: 6388151
    Abstract: A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid to produce 3,5-dimethyl-2,5-hepadiene-4-ol.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: May 14, 2002
    Assignee: Boulder Scientific Company
    Inventors: Jeffrey M. Sullivan, Richard D. Crawford
  • Patent number: 6207403
    Abstract: This invention provides novel compounds derived from a marine sponge, Adocia sp., that specifically modulat kinesin activity by targeting the kinesin motor domain and mimicking the activity a microtubule. The compounds act as potent anti-mitogens are useful in a wide variety of in vitro and in vivo applications.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: March 27, 2001
    Assignee: The Regents of the University of California
    Inventors: Lawrence S. B. Goldstein, David John Faulkner, Roman Sakowicz, Michael S. Berdelis, Christine L. Blackburn, Cordula Hopmann
  • Patent number: 6197990
    Abstract: A cyclopentadienyl metal salt is prepared by reacting a cyclopentadiene and a metal hydride in the presence of an amine compound. Furthermore, a derivative of a cyclopentadiene in which a phenyl group is bonded to its cyclopentadienyl moiety through an element of the 14 group of the Periodic Table is prepared using such a reaction.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: March 6, 2001
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshiaki Oda, Kazuhiro Yamauchi, Hidenori Hanaoka, Hiroshi Souda
  • Patent number: 6137019
    Abstract: Process for converting a geminally substituted cyclopentadiene containing 2-6 substituents into a non-geminally substituted cyclopentadiene by reacting the geminally substituted cyclopentadiene with a base, sodium or potassium at a temperature of 0-200.degree. C. The invention also relates to mixtures of non-geminally substituted cyclopentadienes obtained by means of this process.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 24, 2000
    Assignee: DSM N.V.
    Inventors: Gerardus J. M. Gruter, Johannes A. M. van Beek
  • Patent number: 6124488
    Abstract: Polysubstituted cyclopentadiene compound, in which at least one substituent is of the form -RDR'.sub.n, in which R is a bonding group, D is a hetero atom selected from group 15 or 16 of the Periodic System of the Elements, R' is a substituent and n is the number of R' groups bonded to D, and in that at least one further substituent is a branched alkyl group.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: September 26, 2000
    Assignee: DSM N.V.
    Inventors: Gerardus J. M. Gruter, Johannes A. M. van Beek, Richard Green, Edwin G. IJpeij
  • Patent number: 5973092
    Abstract: A thermosetting resin is formed from cyclopentadiene and a propargyl halide. The resin can be used with carbon fibers to form a carbon-carbon composite.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: October 26, 1999
    Assignee: The University of Southern Mississippi
    Inventors: Lon J. Mathias, Gregory J. Tregre
  • Patent number: 5856541
    Abstract: The invention relates to an improved process which, starting from 2-cyclopenten-1-ones substituted in the 3-position, gives a high yields of 1,3-dialkylcyclopentadienes which can be directly metallated and reacted to give the corresponding 1,3-dialkylcyclopentadienyl-transition metal complexes.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: January 5, 1999
    Assignee: Witco GmbH
    Inventor: Richard Lisowsky
  • Patent number: 5847247
    Abstract: The specification discloses terpene-based solvent compositions which comprise diterpenes as a major component and a minor amount of monoterpenes. The mixtures exhibit solvent properties similar to monoterpenes but have flash points high enough to be classified as combustible rather than flammable materials.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: December 8, 1998
    Assignee: Arizona Chemical Company
    Inventors: Alexander J. Conte, Bobby G. Johnson, Raymond H. Jones, Claude F. Phillips, Jr.
  • Patent number: 5723708
    Abstract: A method for producing cyclopentadienes which comprises the step of cyclodehydration of an unsaturated carbonyl compound having a specific chemical structure in a vapor phase in the presence of a specific solid acid catalyst. The cyclopentadienes of the invention can be produced in a high yield from inexpensive starting materials through a simplified reaction process and are useful as intermediate compounds for organic synthesis.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: March 3, 1998
    Assignee: Nippon Petrochemicals Company, Limited
    Inventors: Yasuo Matsumura, Kazuharu Suyama, Yoshihisa Inomata
  • Patent number: 5723709
    Abstract: Terpene dimer compositions are provided which dry into a hard, tack free film upon exposure to air. The compositions include a terpene dimer having the molecular formula C.sub.20 H.sub.32 and contain at least one double bond. The terpene dimer is derived from a naturally occurring monoterpene, or mixtures thereof, having the molecular formula C.sub.10 H.sub.16. In an another embodiment the compositions, in addition to the terpene dimer, include isomers of the monoterpenes. The compositions are substantially free of higher terpene oligomers having molecular formulas greater than C.sub.20 H.sub.32. Processes for making the terpene dimer compositions are also provided. Advantageous utilization of these compositions is as a diluent, solvent or component in coating, adhesive, alkyd or ink formulations, as an environmentally safe non-toxic material.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: March 3, 1998
    Assignee: Arizona Chemical Company
    Inventors: Claude Frank Phillips, Jr., James William Booth
  • Patent number: 5705038
    Abstract: Phellandrene is difficult to separate from limonene by conventional distillation or rectification because of the proximity of their boiling points. Phellandreneecan be readily separated from limonene by extractive distillation. Effective agents are o-cresol, tripropylene glycol and isophorone.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: January 6, 1998
    Inventor: Lloyd Berg
  • Patent number: 5698080
    Abstract: Phellandrene is difficult to separate from limonene because of the proximity of their boiling points. They are readily separated by azeotropic distillation. Effective agents are ethanol, dioxolane and acetonitrile.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: December 16, 1997
    Inventor: Lloyd Berg
  • Patent number: 5648583
    Abstract: Exo-isomers of polyalkylcyclopentadienes are converted to endo-isomers by contacting the exo-isomers with an acid such as aqueous HCl.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: July 15, 1997
    Assignee: Albemarle Corporation
    Inventors: John Y. Lee, Meng-Sheng Ao, Stephen E. Belmont, Lawrence H. Shepherd, Jr.