21
Mark O Scates, George A Blay, G Paull Torrence, Jerry A Broussard: Low energy carbonylation process. Celanese International Corporation, James J Mullen, December 2, 2003: US06657078 (212 worldwide citation)

A low energy process for producing acetic acid by the carbonylation of methanol is disclosed. The process involves a rhodium-catalyzed system operated at less than about 14% water utilizing up to 2 distillation columns. The process is preferably controlled such that the product stream has a low leve ...


22
Patrick R Gruber, Eric S Hall, Jeffrey J Kolstad, Matthew L Iwen, Richard D Benson, Ronald L Borchardt: Continuous process for manufacture of lactide polymers with controlled optical purity. Cargill Incorporated, Merchant Gould Smith Edell Welter & Schmidt, August 25, 1992: US05142023 (211 worldwide citation)

A process for the continuous production of polylactide polymers from lactic acid which incorporates removal of water or a solvent carrier to concentrate the lactic acid feed followed by polymerization to a low-molecular-weight prepolymer. This prepolymer is fed to a reactor in which a catalyst is ad ...


23
Patrick Richard Gruber, Eric Stanley Hall, Jeffrey John Kolstad, Matthew Lee Iwen, Richard Douglas Benson, Ronald Leo Borchardt: Continuous process for the manufacture of lactide and lactide polymers. Cargill, Merchant Gould Smith Edell Welter & Schmidt P A, December 4, 2001: US06326458 (176 worldwide citation)

A process for the continuous production of substantially purified lactide and lactide polymers from lactic acid or an ester of lactic acid including the steps of forming crude polylactic acid, preferably in the presence of a catalyst means in the case of the ester of lactic acid, to form a condensat ...


24
Hans E Grethlein, Lee R Lynd: Distillation process for ethanol. Trustees of Dartmouth College, Hamilton Brook Smith and Reynolds, June 23, 1992: US05124004 (167 worldwide citation)

A method of distillation employing a heat pump (which may be driven by a compressor) using a vapor stream from within the distillation system as a heat source and a liquid stream from within the distillation system as a heat sink. The selection of heat-source vapors and heat-sink liquid is such that ...


25
Jiri Kolena, Jaromir Lederer, Pavel Morávek, Jiri Hanika, Quido Smejkal, David Skála: Method of producing ethyl acetate and an equipment for carrying out this method. Sulzer Chemtech, Townsend and Townsend and Crew, February 17, 2004: US06693213 (166 worldwide citation)

The invention relates to a method of producing ethyl acetate by reaction of ethyl alcohol with acetic acid and/or acetic anhydride in the presence of a solid acidic catalyst accompanied by simultaneous distillation separation of reaction components, in which acetic acid or acetic anhydride or a mixt ...


26
Dan W Verser, Timothy J Eggeman: Process for producing ethanol from corn dry milling. ZeaChem, Sheridan Ross P C, March 24, 2009: US07507562 (165 worldwide citation)

A process for producing ethanol by the conversion of carbohydrates from a corn dry milling process in which the bottoms fraction from distillation of ethanol in a conventional yeast fermentation is used in a process including a combination of biochemical and synthetic conversions. The process result ...


27
Patrick R Gruber, Eric S Hall, Jeffrey J Kolstad, Matthew L Iwen, Richard D Benson, Ronald L Borchardt: Continuous process for the manufacture of a purified lactide from esters of lactic acid. Cargill Incorporated, Merchant Gould Smith Edell Welter & Schmidt, September 21, 1993: US05247059 (164 worldwide citation)

A process for the continuous production of substantially purified lactide and lactide polymers from an ester of lactic acid including the steps of forming crude lactide in the presence of a catalyst means to form a condensation reaction by-product and polylactic acid and depolymerizing the polylacti ...


28
Dennis Lee Vander Griend: Ethanol distillation process. ICM, Robert O Blinn, November 20, 2007: US07297236 (160 worldwide citation)

A process arrangement for distilling fuel grade ethanol includes a fermentation portion, a distillation portion, a condensation and dehydration portion, a separation and drying portion and an evaporation portion. The fermentation portion produces beer. The distillation portion, the condensation and ...


29
Madan Singh, George A Blay, Michael L Karnilaw, Melchior A Meilchen, Wayne David Picard, Valerie Santillan, Mark O Scates, Robin Suzanne Tanke, G Paull Torrence, Richard F Vogel Jr, R Jay Warner: Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream. Celanese International, Susan Spiering, November 7, 2000: US06143930 (159 worldwide citation)

Disclosed is a method to manufacture high purity acetic acid. Although described in relation to that produced by a low water carbonylation process the present invention is applicable to other mechanisms for production of acetic acid which results in formation of permanganate reducing compounds such ...


30
Dennis Lee Vander Griend: Ethanol distillation process. ICM, Robert O Blinn, August 11, 2009: US07572353 (153 worldwide citation)

A process arrangement for distilling fuel grade ethanol include a distillation portion which distills beer to produce thin stillage and hot ethanol vapor. In an evaporation portion, a set of first effect evaporators which are heated either by plant steam or hot ethanol vapor, concentrate thin stilla ...



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