41
William A Farone, John E Cuzens: Method of separating acids and sugars resulting from strong acid hydrolysis. Arkenol, Knobbe Martens Olson & Bear, December 3, 1996: US05580389 (23 worldwide citation)

A economically viable method for producing sugars using concentrated acid hydrolysis of biomass containing cellulose and hemicellulose is disclosed. The cellulose and hemicellulose in the biomass is first decrystallized and then hydrolyzed to produce a hydrolysate containing both sugars and acid. Si ...


42
Milford Hanna, Gerald Biby, Vesselin Miladinov: Production of microcrystalline cellulose by reactive extrusion. University of Nebraska Lincoln, Shook Hardy & Bacon, May 8, 2001: US06228213 (23 worldwide citation)

This process involves feeding cellulose into an extruder with an acid solution. The extruder is comprised of a screw and a barrel. The screw is rotated so as to pressurize the cellulose, and the cellulose undergoes acid hydrolysis and forms microcrystalline cellulose. The invented process can be acc ...


43
Roger D Hester, George E Farina, Srikanth Nanguneri: Process for separating acid-sugar mixtures using ion exclusion chromatography. Tennessee Valley Authority, Robert A Petrusek, April 18, 1995: US05407580 (23 worldwide citation)

A process for effectively and economically separating an ionic component such as acid from a nonionic component such as sugar in polar solutions using ion exclusion technology whereby the viability of using hydrolysis to convert wood and agricultural waste products such as corn stover into fuel alco ...


44
Rene Heymes, Andre Lutz: Alkyloximes of 7-amino-thiazolyl-acetamido-cephalosporanic acids. Roussel Uclaf, Hammond & Littell Weissenberger and Muserlian, May 13, 1980: US04202893 (21 worldwide citation)

Novel alkyloximes of 7-amino-thiazolyl-acetamidocephalosporanic acids of the formula ##STR1## wherein R is selected from the group consisting of alkyl of 1 to 5 carbon atoms, cycloalkyl of 3 to 5 carbon atoms and --CH.sub.2 --SR', R' is selected from the group consisting of acyl of an alkanoic acid ...


45
Stoy Vladimir, Stoy Artur, Urbanova Renata, Prokop Jaroslav, Kucera Josef: Method for the acid hydrolysis of acrylonitrile containing polymers, hydrogels and fibers of products prepared by said method. Ceskoslovenska akademie ved No 3 Narodni, Schaffer Murray, July 29, 1975: US3897382 (21 worldwide citation)

There is disclosed a method for the acid hydrolysis of acrylonitrile-containing polymers comprising hydrolyzing said polymers in the presence of about 40 to about 80% concentrated nitric acid at a temperature of about 25 to about 60.degree.C, cooling said acid reaction mixture to about -20.degree. t ...


46
William A Farone, John E Cuzens: Method of removing silica or silicates from solids resulting from the strong acid hydrolysis of cellulosic and hemicellulosic materials. Arkenol, Knobbe Martens Olson & Bear, July 21, 1998: US05782982 (20 worldwide citation)

A method of removing silica or silicates from solids results from the acid hydrolysis of materials containing cellulose and hemicellulose is disclosed. The method includes the steps of treating the solids with a metal hydroxide solution to produce an extract, reducing the pH of the extract to produc ...


47
Gustaf Arthur Nyman, Gote Savo: Method for continuous hydrolysis of pentose containing material and apparatus for implementing the method. Anstalt Gemass, Allison C Collard, May 24, 1977: US04025356 (20 worldwide citation)

Method and apparatus for the continuous acid hydrolysis of pentosan-containing material at a temperature between 80.degree. and 120.degree. C and at a pH lower than 5. At least two portions of hydrolysate are re-cycled back into the hydrolysis vessel. One recycle portion having a lower acid concentr ...


48
William A Farone, John E Cuzens: Method for the production of levulinic acid. Arkenol, Knobbe Martens Olson and Bear, April 6, 1999: US05892107 (20 worldwide citation)

A method of producing dehydration products from one or more 5-carbon or 6-carbon sugars includes reacting said one or more sugars at 40.degree.-240 .degree. C. for 1 to 96 hours in the presence of 10-90% sulfuric acid, separating the reaction products, and recovering levulinic acid. The sugars can b ...


49
Saka Shiro, Nakamori Kenichi: Method for treating biomass through combination of dissolution by cellulose solvent and hydrolysis. Hitachi Zosen, Saka Shiro, August 31, 2006: JP2006-223152 (20 worldwide citation)

PROBLEM TO BE SOLVED: To provide a method for treating biomass to efficiently and easily produce monosaccharides or oligosaccharides, optionally polysaccharides.SOLUTION: The method comprises a combination of the step of dissolving polysaccharide-based biomass in cellulose solvent(s) and the step of ...


50
George T Tsao, Michael R Ladisch, Arindam Bose: Acid hydrolysis of cellulose to yield glucose. Purdue Research Foundation, John R Nesbitt, November 20, 1979: US04174976 (19 worldwide citation)

A process to yield glucose from cellulose through acid hydrolysis. Cellulose is recovered from cellulosic materials, preferably by pretreating the cellulosic materials by dissolving the cellulosic materials in Cadoxen or a chelating metal caustic swelling solvent and then precipitating the cellulose ...



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