41
Heinz Houben, Hans U Petzoldt, Joachim Stegemann: Process for producing ethanol. Fried Krupp, Sughrue Mion Zinn Macpeak and Seas, September 8, 1987: US04692218 (135 worldwide citation)

Method and apparatus are provided for simultaneously producing various forms of alcohol, including ethanol, which can likewise be withdrawn from the apparatus simultaneously. To this end, successive columns in the individual processing stages, each of which includes distillation, rectification, puri ...


42
Roger C Phillips: Colorimetric ethanol analysis method and test device. Lifescan, Leydig Volt & Mayer, March 29, 1988: US04734360 (135 worldwide citation)

A disposable test strip device for detecting and measuring ethanol in aqueous solutions is disclosed. The test strip includes an inert support pad that contains a stabilized dry form of the enzyme alcohol oxidase, a material having peroxidative activity and an oxygen acceptor that reacts with hydrog ...


43
Lloyd Berg, Pisant Ratanapupech: Separation of ethyl acetate from ethanol and water by extractive distillation. April 5, 1983: US04379028 (134 worldwide citation)

Ethyl acetate cannot be completely removed from ethanol and water mixtures by distillation because of the presence of the minimum ternary azeotrope. Ethyl acetate can be readily removed from mixtures containing it, ethanol and water by using extractive distillation in which the extractive distillati ...


44
Moy David: Process for the vapor phase hydrogenation of carboxylic acids to esters and alcohols.. Halcon Sd Group, March 26, 1986: EP0175558-A1 (131 worldwide citation)

The vapor phase formation of carboxylic acid alcohols and/or esters such as ethanol and ethyl acetate from the corresponding mono and di-functional carboxylic acid, such as acetic acid, in the presence of a copper oxide-metal oxide supported catalyst, such as CuO/ZnAl2O4.


45
Ronald C Stites, Jerrod Hohman: Methods and apparatus for selectively producing ethanol from synthesis gas. Range Fuels, O Connor & Company, Ryan P O Connor, February 8, 2011: US07884253 (130 worldwide citation)

The invention provides methods and apparatus for selectively producing ethanol from syngas. As disclosed herein, syngas derived from cellulosic biomass (or other sources) can be catalytically converted into methanol, which in turn can be catalytically converted into acetic acid or acetates. Finally, ...


46
Jeffrey P Knapp: Low energy extractive distillation process for producing anhydrous ethanol. University of Massachusetts, Welsh & Katz, July 30, 1991: US05035776 (129 worldwide citation)

A thermally-integrated extractive distillation process for recovering anhydrous ethanol from fermentation or synthetic feedstocks has a distillation train of four columns. Two columns are preconcentrators operated in parallel. The remaining columns are an extractive distillation dehydrating tower, a ...


47
Burke F Brush, Raphael Katzen: Hydrous alcohol distillation method and apparatus. Raphael Katzen Associates International, Merriam Marshall & Bicknell, December 22, 1981: US04306942 (122 worldwide citation)

An improved distillation method and apparatus are provided for recovering hydrous ethanol from fermentation or synthetic feedstocks. Substantial energy savings are realized by utilizing a pair of stripper-rectifier towers in which overhead vapors from one tower operating at a higher pressure supply ...


48
Keiichi Itakura: Solid-phase synthesis of polynucleotides. City of Hope Research Institute, Ellsworth R Roston, Charles H Schwartz, February 8, 1983: US04373071 (122 worldwide citation)

A commercially available resin such as polystyrene is converted into a phthalimidomethyl-resin by treatment with potassium phthalimide. The phthalimidomethyl-resin is converted into an amino resin with hydrazine in ethanol. The amino resin is then combined with an activated ester of a nucleoside to ...


49
Kimberly Ann Horan, Carl David Murphy, Russell Mark Stephens, R Jay Warner, Kenneth Allen Windhorst: Process improvement for continuous ethyl acetate production. Celanese International Corporation, M Susan Spiering, July 27, 2004: US06768021 (122 worldwide citation)

Disclosed herein is an improved process for producing ethyl acetate comprising contacting acetic acid and ethanol in a reaction zone in the presence of an acid catalyst, distilling formed vapors and condensing to form an organic phase rich in ethyl acetate and an aqueous phase rich in water, separat ...


50
Karl F Mueller, Sonia J Heiber: Crosslinked, porous polymers for controlled drug delivery. Ciba Geigy Corporation, Luther A R Hall, October 22, 1985: US04548990 (121 worldwide citation)

A controlled-release, drug-delivery composition which comprises (A) a crosslinked copolymer, capable of swelling in ethanol to give a swollen copolymer containing at least 40% by weight of ethanol, and capable of swelling in water to give a swollen copolymer containing no more than 20% by weight of ...



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