Patents by Inventor Lee Reynolds Partin
Lee Reynolds Partin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8772513Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural where R=alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R?OCH2-furfural, where R?=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R?-furfural, where R?=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA, cooling a crude carboxylic acid slurry in cooling zone to form a cooled slurry stream. The cooled slurry stream is routed to a solid-liquid separation zone to generate a crude wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising crude FDCA (cFDCA).Type: GrantFiled: February 4, 2013Date of Patent: July 8, 2014Assignee: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Ashfaq Shahanawaz Shaikh, Lee Reynolds Partin
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Patent number: 8748479Abstract: 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: GrantFiled: February 4, 2013Date of Patent: June 10, 2014Assignee: Eastman Chemical CompanyInventors: Ashfaq Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
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Publication number: 20140142326Abstract: Disclosed is a process for producing a dry, purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). Also disclosed is a method for treating an oxidation off-gas stream from such a process. The method features solvent as well as energy recovery from the off-gas stream.Type: ApplicationFiled: March 13, 2013Publication date: May 22, 2014Applicant: Eastman Chemical CompanyInventors: Ashfaq Shahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
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Publication number: 20140142327Abstract: Disclosed is a process for producing a dry, purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). Also disclosed is a method for treating an oxidation off-gas stream from such a process. The method features solvent as well as energy recovery from the off-gas stream.Type: ApplicationFiled: March 13, 2013Publication date: May 22, 2014Applicant: Eastman Chemical CompanyInventors: Ashfaq Shahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
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Patent number: 8685334Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.Type: GrantFiled: February 11, 2011Date of Patent: April 1, 2014Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Alan George Wonders, Puneet Gupta, Lee Reynolds Partin, Wayne Scott Strasser, Marcel de Vreede
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Publication number: 20140066639Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural where R=alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R?OCH2-furfural, where R?=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R?-furfural, where R?=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA, cooling a crude carboxylic acid slurry in cooling zone to form a cooled slurry stream. The cooled slurry stream is routed to a solid-liquid separation zone to generate a crude wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising crude FDCA (cFDCA).Type: ApplicationFiled: February 4, 2013Publication date: March 6, 2014Applicant: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Ashfaq Shahanawaz Shaikh, Lee Reynolds Partin
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Patent number: 8658810Abstract: Disclosed is a process to produce a purified vapor comprising dialkyl-furan-2,5-dicarboxylate (DAFD). Furan-2,5-dicarboxylic acid (FDCA) and an alcohol in an esterification zone to generate a crude diester stream containing dialkyl furan dicarboxylate (DAFD), unreacted alcohol, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and alkyl furan-2-carboxylate (AFC). The crude diester stream is fed to a flash evaporation zone to produce a vapor alcohol composition and a first liquid DAFD rich composition. At least a portion of the remaining alcohol can be separated from the first liquid DAFD rich composition to produce a second alcohol vapor and a second liquid DAFD rich composition, followed by separating AFC from the second liquid DAFD rich composition to product an AFC vapor and a partially purified DAFD rich composition, followed by separating a portion of the DAFD from the partially purified DAFD rich composition to produce a purified DAFD vapor.Type: GrantFiled: June 22, 2012Date of Patent: February 25, 2014Assignee: Eastman Chemical CompanyInventors: Lee Reynolds Partin, Ashfaq Shaikh, Mesfin Ejerssa Janka, Kenny Randolph Parker
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Publication number: 20140024843Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound to generate a crude carboxylic acid slurry comprising FDCA, removing impurities from a crude carboxylic acid slurry in a liquid displacement zone to form a low impurity slurry stream. The low impurity slurry stream is further treated in a secondary oxidation zone to produce a secondary oxidation slurry stream which is routed to a crystallization zone to form a crystallized slurry stream. The crystallized slurry stream is cooled in a cooling zone and the resulting cooled crystallized slurry stream is routed to a solid-liquid separation zone to generate a purified wet cake stream comprising FDCA that is dried in a drying zone to generate a dry carboxylic acid product stream comprising purified FDCA (pFDCA).Type: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Applicant: EASTMAN CHEMICAL COMPANYInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Paula Moody, Ashfaq Shaikh, Lee Reynolds Partin, Bradford Russell Bowers, Michael Charles Morrow
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Publication number: 20140024844Abstract: Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH2-furfural were R alkyl, cycloalkyl and aryl), 5-HMF ethers (5-R?OCH2-furfural, where R?=alkyl, cycloalkyl and aryl), 5-alkyl furfurals (5-R?-furfural, where R?=alkyl, cycloalkyl and aryl), mixed feed-stocks of 5-HMF and 5-HMF esters and mixed feed-stocks of 5-HMF and 5-HMF ethers and mixed feed-stocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA.Type: ApplicationFiled: February 4, 2013Publication date: January 23, 2014Applicant: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Paula Moody, Ashfaq Shahanawaz Shaikh, Lee Reynolds Partin, Bradford Russell Bowers, Michael Charies Morrow
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Publication number: 20130345451Abstract: 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: ApplicationFiled: February 4, 2013Publication date: December 26, 2013Applicant: EASTMAN CHEMICAL COMPANYInventors: Ashfaq Schahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
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Publication number: 20130345447Abstract: Disclosed is a process to produce a purified vapor comprising dialkyl-furan-2,5-dicarboxylate (DAFD). Furan-2,5-dicarboxylic acid (FDCA) and an alcohol in an esterification zone to generate a crude diester stream containing dialkyl furan dicarboxylate (DAFD), unreacted alcohol, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and alkyl furan-2-carboxylate (AFC). The crude diester stream is fed to a flash evaporation zone to produce a vapor alcohol composition and a first liquid DAFD rich composition. At least a portion of the remaining alcohol can be separated from the first liquid DAFD rich composition to produce a second alcohol vapor and a second liquid DAFD rich composition, followed by separating AFC from the second liquid DAFD rich composition to product an AFC vapor and a partially purified DAFD rich composition, followed by separating a portion of the DAFD from the partially purified DAFD rich composition to produce a purified DAFD vapor.Type: ApplicationFiled: June 22, 2012Publication date: December 26, 2013Applicant: EASTMAN CHEMICAL COMPANYInventors: Ashfaq Shaikh, Lee Reynolds Partin, Mesfin Ejerssa Janka, Kenny Randolph Parker
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Publication number: 20130345448Abstract: A process to produce a purified dimethyl-furan-2,5-dicarboxylate (DMFD) by feeding furan dicarboxylic acid and methanol to an esterification zone to generate a crude diester composition, and purifying the crude diester composition with a physical separation process followed by crystallization, solid liquid separation, and optionally drying to produce a purified DMFD composition. A portion of the stream generated by solid liquid separation can be dissolved and subjected to crystallization and solid liquid separation repeatedly. The process is useful to produce a purified DMFD composition having a low b*, at least 98 wt. % DAFD solids, and a low concentration of 5-(methoxycarbonyl)furan-2-carboxylic acid (MCFC) and methyl 5-formylfuran-2-carboxylate (MFFC).Type: ApplicationFiled: June 22, 2012Publication date: December 26, 2013Applicant: EASTMAN CHEMICAL COMPANYInventors: Ashfaq Shaikh, Kenny Randolph Parker, Lee Reynolds Partin, Mesfin Ejerssa Janka
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Publication number: 20130345449Abstract: A process for the manufacture of dialkyl furan-2,5-dicarboxylate (DAFD) vapor composition by feeding furan-2,5-dicarboxylic acid (“FDCA”) to an esterification reactor and in the presence of an alcohol compound such as methanol, conducting an esterification reaction to form an esterification vapor containing DAFD, unreacted alcohol compound, 5-(alkoxycarbonyl)furan-2-carboxylic acid (ACFC), and water, and continuously passing the esterification vapor through an ACFC condensing zone, that can be integral with the esterification reactor, in which at least a portion of the ACFC in the esterification vapor is converted to a liquid phase condensate, and continuously discharging the esterification vapor from the ACFC condensing zone as a DAFD vapor. There is also a DAFD vapor composition containing DAFD, water, unreacted alcohol, and by-products.Type: ApplicationFiled: June 22, 2012Publication date: December 26, 2013Applicant: EASTMAN CHEMICAL COMPANYInventors: Lee Reynolds Partin, Ashfaq Shaikh, Mesfin Ejerssa Janka, Kenny Randolph Parker
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Publication number: 20130280141Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.Type: ApplicationFiled: June 21, 2013Publication date: October 24, 2013Inventors: Alan George WONDERS, Robert LIN, Lee Reynolds PARTIN, Marcel de VREEDE, Wayne Scott STRASSER
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Patent number: 8501986Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.Type: GrantFiled: February 10, 2010Date of Patent: August 6, 2013Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Alan George Wonders, Robert Lin, Lee Reynolds Partin, Marcel de Vreede, Wayne Scott Strasser
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Patent number: 8470257Abstract: Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.Type: GrantFiled: January 30, 2009Date of Patent: June 25, 2013Assignee: Grupo Petrotemex, S.A. de C.V.Inventors: Alan George Wonders, Lee Reynolds Partin, Wayne Scott Strasser, Marcel deVreede, Puneet Gupta
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Publication number: 20120302770Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.Type: ApplicationFiled: September 9, 2011Publication date: November 29, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Mesfin Ejerssa Janka, David Milton Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Ashfaq Shaikh, Lee Reynolds Partin, Charles Edwan Sumner, JR.
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Publication number: 20120302768Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.Type: ApplicationFiled: September 9, 2011Publication date: November 29, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Mesfin Ejerssa Janka, David Milton Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Ashfaq Shaikh, Lee Reynolds Partin, Jason Christopher Jenkins, Paula Moody, Thomas Elbert Shanks, Charles Edwan Sumner, JR.
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Publication number: 20120302771Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.Type: ApplicationFiled: September 9, 2011Publication date: November 29, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Mesfin Ejerssa Janka, David Milton Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Ashfaq Shaikh, Lee Reynolds Partin, Charles Edwan Sumner, JR.
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Publication number: 20120302773Abstract: Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.Type: ApplicationFiled: September 9, 2011Publication date: November 29, 2012Applicant: EASTMAN CHEMICAL COMPANYInventors: Mesfin Ejerssa Janka, David Milton Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Ashfaq Shaikh, Lee Reynolds Partin, Charles Edwan Sumner, JR.