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).
-
Publication number: 20150368219Abstract: 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: September 1, 2015Publication date: December 24, 2015Applicant: EASTMAN CHEMICAL COMPANYInventors: Ashfaq Shahanawaz SHAIKH, Kenny Randolph PARKER, Mesfin Ejerssa JANKA, Lee Reynolds PARTIN
-
Patent number: 9206149Abstract: 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: May 20, 2014Date of Patent: December 8, 2015Assignee: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Ashfaq Shahanawaz Shaikh, Lee Reynolds Partin
-
Patent number: 9199958Abstract: 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: GrantFiled: October 28, 2014Date of Patent: December 1, 2015Assignee: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, David Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Ashfaq Shaikh, Lee Reynolds Partin, Charles Sumner
-
Patent number: 9156806Abstract: 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: April 23, 2014Date of Patent: October 13, 2015Assignee: Eastman Chemical CompanyInventors: Ashfaq Schahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
-
Publication number: 20150225360Abstract: 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, 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.Type: ApplicationFiled: April 21, 2015Publication date: August 13, 2015Inventors: Mesfin Ejerssa JANKA, Kenny Randolph PARKER, Paula MOODY, Ashfaq Shahanawaz SHAIKH, Lee Reynolds PARTIN, Bradford Russell BOWERS, Michael Charles MORROW
-
Patent number: 9029581Abstract: 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: GrantFiled: September 19, 2014Date of Patent: May 12, 2015Assignee: Eastman Chemical CompanyInventors: Lee Reynolds Partin, Ashfaq Shaikh, Mesfin Ejerssa Janka, Kenny Randolph Parker
-
Patent number: 9029580Abstract: 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: GrantFiled: February 4, 2013Date of Patent: May 12, 2015Assignee: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Paula Moody, Ashfaq Shahanawaz Shaikh, Lee Reynolds Partin, Bradford Russell Bowers, Michael Charles Morrow
-
Publication number: 20150051412Abstract: 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: October 28, 2014Publication date: February 19, 2015Applicant: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, David Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Ashfaq Shaikh, Lee Reynolds Partin, Charles Sumner
-
Publication number: 20150031903Abstract: 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: September 19, 2014Publication date: January 29, 2015Inventors: Lee Reynolds Partin, Ashfaq Shaikh, Mesfin Ejerssa Janka, Kenny Randolph Parker
-
Patent number: 8916719Abstract: 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: GrantFiled: March 13, 2013Date of Patent: December 23, 2014Assignee: Eastman Chemical CompanyInventors: Ashfaq Shahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
-
Patent number: 8916720Abstract: 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: GrantFiled: March 13, 2013Date of Patent: December 23, 2014Assignee: Eastman Chemical CompanyInventors: Ashfaq Shahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
-
Method for producing purified dialkyl-furan-2,5-dicarboxylate separation and solid liquid separation
Patent number: 8912349Abstract: 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: GrantFiled: June 22, 2012Date of Patent: December 16, 2014Assignee: Eastman Chemical CompanyInventors: Ashfaq Shaikh, Kenny Randolph Parker, Lee Reynolds Partin, Mesfin Ejerssa Janka -
Patent number: 8859788Abstract: 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: GrantFiled: June 22, 2012Date of Patent: October 14, 2014Assignee: Eastman Chemical CompanyInventors: Lee Reynolds Partin, Ashfaq Shaikh, Mesfin Ejerssa Janka, Kenny Randolph Parker
-
Patent number: 8846960Abstract: 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: GrantFiled: September 9, 2011Date of Patent: September 30, 2014Assignee: 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.
-
Publication number: 20140256964Abstract: 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: May 20, 2014Publication date: September 11, 2014Applicant: EASTMAN CHEMICAL COMPANYInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Ashfaq Shahanawaz Shaikh, Lee Reynolds Partin
-
Publication number: 20140235880Abstract: 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: April 23, 2014Publication date: August 21, 2014Applicant: EASTMAN CHEMICAL COMPANYInventors: Ashfaq Schahanawaz Shaikh, Kenny Randolph Parker, Mesfin Ejerssa Janka, Lee Reynolds Partin
-
Patent number: 8809556Abstract: 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: GrantFiled: July 20, 2012Date of Patent: August 19, 2014Assignee: Eastman Chemical CompanyInventors: Mesfin Ejerssa Janka, Kenny Randolph Parker, Paula Moody, Ashfaq Shaikh, Lee Reynolds Partin, Bradford Russell Bowers, Michael Charles Morrow
-
Patent number: 8796477Abstract: 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: GrantFiled: September 9, 2011Date of Patent: August 5, 2014Assignee: 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.
-
Patent number: 8791278Abstract: 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: GrantFiled: September 9, 2011Date of Patent: July 29, 2014Assignee: Eastman Chemical CompanyInventors: Ashfaq Shaikh, Mesfin Ejerssa Janka, David Milton Lange, Michael C. Morrow, Bradford Russell Bowers, Kenny Randolph Parker, Lee Reynolds Partin, Jason Christopher Jenkins, Paula Moody, Thomas Elbert Shanks, Charles Edwan Sumner, Jr.
-
Patent number: 8791277Abstract: 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: GrantFiled: September 9, 2011Date of Patent: July 29, 2014Assignee: 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.