Patents Assigned to W. R. Grace & Co.-Conn.
  • Patent number: 9586879
    Abstract: The present invention discloses a process for the selective hydrogenation of glycerol in the liquid phase to produce 1- and 2-propanols in high yields as the major organic products. The process comprises subjecting a glycerol stream having at least 30% by weight water to a combination of low pressure and high temperature hydrogenation conditions in the presence of a promoted or un-promoted skeletal copper catalyst.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 7, 2017
    Assignee: W. R. GRACE & CO-CONN.
    Inventor: Stephen R. Schmidt
  • Publication number: 20170056854
    Abstract: Methods of making functionalized support material are disclosed. Functionalized support material suitable for use in chromatography columns or cartridges, such as in a high pressure liquid chromatography (HPLC) column or a fast protein liquid chromatography (FPLC) column, is also disclosed. Chromatography columns or cartridges containing the functionalized support material, and methods of using functionalized support material, such as a media (e.g., chromatographic material) in a chromatography column or cartridge, are also disclosed.
    Type: Application
    Filed: April 30, 2015
    Publication date: March 2, 2017
    Applicant: W. R. Grace & Co.-Conn.
    Inventor: Feng Gu
  • Publication number: 20170043318
    Abstract: Disclosed are silica bound zeolite adsorbent particles which possess high volumetric gas adsorption capacity for the adsorption and/or desorption of gases. The adsorbent are highly effective as a gas source in volumetrically constrained applications. The silica-bound zeolite adsorbents possess a relatively high zeolite content simultaneously with a relatively low intra-particle pore volume as compared to the clay bound zeolite aggregates heretofore used as a gas source in volumetrically constrained environments, e.g. instant beverage carbonation processes, devices or systems.
    Type: Application
    Filed: April 8, 2015
    Publication date: February 16, 2017
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: James George Miller, Robert Harding, Demetrius Michos, James Neil Pryor
  • Patent number: 9567410
    Abstract: The presently disclosed and claimed inventive concept(s) relates to solid catalyst components comprising titanium, magnesium, halogen and an internal electron donor compound having at least one ester group and at least one alkoxy group, and catalyst systems containing the catalyst solid components, organoaluminum compounds, and organosilicon compounds. The presently disclosed and claimed inventive concept(s) further relates to methods of making the catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing alpha-olefins using the catalyst systems.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 14, 2017
    Assignee: W.R. Grace & Co.-Conn.
    Inventor: Main Chang
  • Patent number: 9562119
    Abstract: The present invention relates to solid catalyst components comprising a reaction product of a titanium compound, a magnesium compound, an alcohol, an aluminum alkoxide, a siloxane mixture, and a maleate derivative; and catalyst systems comprising the solid catalyst components and organoaluminum compounds. The present invention also relates to methods of making the solid catalyst components and the catalyst systems, and methods of polymerizing or copolymerizing ethylene using the catalyst systems.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: February 7, 2017
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Main Chang, Thomas Garoff
  • Patent number: 9556291
    Abstract: The present disclosure is directed to a process for producing olefin-based polymer in a gas phase polymerization reactor. The process includes forming a wet zone in the gas phase polymerization reactor. The wet zone is formed by maintaining a temperature less than or equal to the fluidizing medium dew point temperature+2° C. in a region of the reactor. The region is defined as the region extending from the distributor plate to 2.5 meters above the distributor plate. Injection of a high activity catalyst composition in the wet zone produces olefin-based having a settled bulk density greater than 23.5 lb/ft3.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: January 31, 2017
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jan W. Van Egmond, Daniel J. Chismar, Jeffrey D. Goad
  • Patent number: 9528059
    Abstract: The process of this invention removes impurities from transesterification products comprising primarily fatty acid alkyl esters (FAAE) that are being processed for final fuel products, such as biodiesel. The inventive process is catalytic, and the resulting ester is suitable for use as biodiesel. Metal oxide and mixed metal oxide catalysts are particularly suitable. The invention is particularly suitable for treating fatty acid alkyl ester compositions comprising impurities such as glycerin, sterol glycosides, and/or triglyceride, diglyceride and/or monoglyceride. The invention is particularly useful in treating FAAE transesterification products made using homogeneous alkali catalysts. The treated ester exhibits improved performance under cold weather conditions, which can be measured by methods such as ASTM 7501 Cold Soak Filtration Test (CSFT).
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 27, 2016
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Stephen R. Schmidt, Meenakshi S. Krishnamoorthy, Manoj M. Koranne, Heiko Morell, Jochen G. Metzger
  • Patent number: 9504975
    Abstract: A preferred embodiment of a system for loading catalyst and/or additives into a fluidized catalytic cracking unit includes a bin for storing at least one of the catalyst and/or additives, and a loading unit in fluid communication with the storage bin and the fluidized catalytic cracking unit on a selective basis. The loading unit is capable of being evacuated so that a resulting vacuum within the loading unit draws the catalyst and/or additive from the bin. The loading unit is also capable of being pressurized so that the catalyst and/or additive is transferred from the loading unit to the fluidized catalytic cracking unit.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 29, 2016
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: George Yaluris, Lenny Lee Albin, Alfred Ferdinand Jordan
  • Publication number: 20160332142
    Abstract: Chromatography media and devices containing chromatography media are disclosed. Methods of making chromatography devices and methods of using chromatography devices containing the chromatography media are also disclosed.
    Type: Application
    Filed: January 15, 2015
    Publication date: November 17, 2016
    Applicants: W. R. GRACE & CO. CONN., REPLIGEN CORPORATION
    Inventors: Feng Gu, Surya Kiran Chodavarapu, James Bogdanor, Dennis McCreay, James Neil Pryor, James Rusche, James Peyser, Thomas Pauly
  • Publication number: 20160297906
    Abstract: Particles of a procatalyst composition having a particle size D50 from 19 microns to 30 microns. A polymerization process comprising halogenating, in the presence of a substituted phenylene aromatic diester, particles of a MagTi procatalyst precursor to form particles of a procatalyst composition having a particle size D50 from 19 microns to 30 microns; first contacting a propylene and optionally one or more first comonomers with a catalyst composition comprising the particles of the procatalyst composition in a first polymerization reactor to form an active propylene-based polymer; and second contacting the active propylene-based polymer with at least one second comonomer in a second polymerization reactor to form a propylene impact copolymer.
    Type: Application
    Filed: November 26, 2014
    Publication date: October 13, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventor: Jan W. Van Egmond
  • Publication number: 20160289436
    Abstract: A process for producing a propylene impact copolymer (ICOP), the process comprising the steps of feeding propylene and optionally one or more first comonomers into a first reactor; feeding into the first reactor a catalyst mixture; contacting the propylene with the catalyst mixture under first polymerization conditions to form an active propylene-based polymer; transferring at least a portion of the first reactor contents to a second reactor; feeding additional activity limiting agent, additional selectivity control agent and, optionally additional cocatalyst and one or more second comonomers into the second reactor; and maintaining the second reactor at a second reactor temperature in a range that is sufficient to allow copolymerization to form the propylene impact copolymer (ICOP), wherein the second reactor temperature is below 70° C.
    Type: Application
    Filed: November 26, 2014
    Publication date: October 6, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Jan W. Van Egmond, Jeffrey D. Goad
  • Publication number: 20160289357
    Abstract: A gas-phase process for making a propylene-based polymer in a fluidized-bed reactor, the reactor containing a fluidized bed including polymer product particles and a catalyst, the process having a set of quantitative criteria for maximum monomer partial pressure, maximum reactor temperature, and comonomer content(s) in the propylene-based polymer. The propylene-based polymer may be EBPT or BPRCP. The catalyst may include a catalyst/donor system comprising (1) a supported Ziegler-Natta pro-catalyst, (2) a co-catalyst, and (3) a mixed external electron donor system including (a) an activity limiting agent including at least one carboxylate ester functional group, and (b) a selectivity control agent.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 6, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Ping Cai, Matthew J. Fedec, Jeffrey D. Goad, Jan W. Van Egmond, Chai-Jing Chou
  • Publication number: 20160280812
    Abstract: The present disclosure provides a process for producing propylene-based polymer. The process includes contacting, under polymerization conditions in a gas phase polymerization reactor, propylene monomer and optionally one or more comonomers with a Ziegler-Natta catalyst composition. The process includes maintaining the temperature of a reaction zone of the reactor at a temperature from greater than 72° C. to less than or equal to 85° C., and forming a propylene-based polymer having a molecular weight (Mw) greater than 100,000, and a Mz+1/Mz less than 2.20. The resultant propylene-based polymer is advantageous in fiber applications.
    Type: Application
    Filed: November 14, 2014
    Publication date: September 29, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: John K Kaarto, Jan W. Van Egmond, Charles D. Lester
  • Publication number: 20160256860
    Abstract: A method for synthesizing small crystals of silicoaluminophosphate-34 (SAPO-34) molecular sieves with high structural purity. The method includes forming a first slurry and a second slurry which are aged separately to form a first aged slurry and a second aged slurry. The first slurry includes a first source of phosphorus, a first source of aluminium, a first source of silicon, and at least one first organic structure directing agent. The second slurry includes a second source of phosphorus, a second source of aluminium, a second source of silicon, and at least one second organic structure directing agent. Then, the first aged slurry and the second aged slurry are combined to form a mixture of aged slurries. Finally, crystallization of silicoaluminophosphate molecular sieves comprising the SAPO-34 molecular sieves is induced from the mixture of aged slurries.
    Type: Application
    Filed: October 23, 2014
    Publication date: September 8, 2016
    Applicant: W. R. GRACE & CO.-CONN.
    Inventors: Qiuhua Zhang, Manoj M. Koranne
  • Patent number: 9434796
    Abstract: Disclosed herein are catalyst compositions and polymers, i.e., propylene-based polymers, produced therefrom. The present catalyst compositions include an internal electron donor with a compounded alkoxyalkyl ester and optionally a mixed external electron donor. The present catalyst compositions improve catalyst selectivity, improve catalyst activity, and/or improve hydrogen response. Propylene-based polymer produced from the present catalyst composition has a melt flow rate greater than 10 g/10 min.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: September 6, 2016
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Linfeng Chen, Kelly Gonzalez
  • Patent number: 9434799
    Abstract: Disclosed are procatalyst compositions having an internal electron donor which include a substituted phenylene aromatic diester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit high activity and produce propylene-based olefins with broad molecular weight distribution.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: September 6, 2016
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao
  • Publication number: 20160251462
    Abstract: A composition is provided which comprises a propylene ethylene random copolymer having a melt flow rate (MFR) (as determined according to ASTM D1238, 230° C., 2.16 Kg) of less than 1 g/10 min, a xylene solubles content of less than 7% by weight, an ethylene content of from 3 to 5 percent by weight of the copolymer, and a value equal to or greater than 92 for the product of the Koenig B value times the % mm triads measured on the xylene insoluble fraction of the random copolymer obtained by the wet method. Pipes made from the composition demonstrate improved pressure endurance.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 1, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Chai-Jing Chou, Daniel W. Baugh, III, John Kaarto, Jan W. Van Egmond, Jeffrey D. Goad, William G. Sheard
  • Patent number: 9416322
    Abstract: This invention relates to a process of preparing an improved catalyst comprising a clay derived zeolite. In particular, the invention comprises combining an yttrium compound with a zeolite produced by treating clay with a silica source and under alkaline conditions. The clay derived zeolite can be further combined with conventional matrix and/or binder precursors to form particulates suitable for use as catalysts in fluid catalytic cracking (FCC). Alternatively, the clay that is treated with the silica source and alkaline conditions can be in particulate form having sizes suitable for use in FCC, and the zeolite is produced in situ within the particulate. Yttrium compound is then combined with the zeolite in the particulate, e.g., via impregnation. It has been shown that the addition of the yttrium compound improves zeolite surface area retention, and zeolite stability in catalysts comprising clay derived zeolites.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 16, 2016
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Yuying Shu, Richard F. Wormsbecher, Wu-Cheng Cheng, Michael D Wallace
  • Publication number: 20160229933
    Abstract: The present disclosure is directed to a process for producing olefin-based polymer in a gas phase polymerization reactor. The process includes forming a wet zone in the gas phase polymerization reactor. The wet zone is formed by maintaining a temperature less than or equal to the fluidizing medium dew point temperature+2° C. in a region of the reactor. The region is defined as the region extending from the distributor plate to 2.5 meters above the distributor plate. Injection of a high activity catalyst composition in the wet zone produces olefin-based having a settled bulk density greater than 23.5 lb/ft3.
    Type: Application
    Filed: September 11, 2014
    Publication date: August 11, 2016
    Applicant: W. R. Grace & Co.-Conn.
    Inventors: Jan W. Van Egmond, Daniel J. Chismar, Jeffrey D. Goad
  • Patent number: 9409149
    Abstract: The present invention is directed to a method of forming titania clad high surface area alumina suitable as a support for forming noble metal catalysts. The resultant catalysts exhibit resistance to poisoning by sulfurous materials and, therefore, are useful in applications directed to internal combustion engine emission conversion and the like. The present invention provides a commercially feasible and cost effective method of forming a highly desired support for noble metal catalyst application. The process comprises forming a slurry of porous alumina particulate suitable as a catalyst support for the intended application, mixing said slurry with a solution of titanyl sulfate having a pH of about 1, increasing the pH of the mixed slurry/solution at a slow rate of from 0.05 to 0.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 9, 2016
    Assignee: W. R. GRACE & CO.-CONN.
    Inventors: Manoj Mukund Koranne, David Chapamn