Sugar – starch – and carbohydrates – Processes – Carbohydrate manufacture and refining
Patent
1975-05-19
1977-04-19
Wolk, Morris O.
Sugar, starch, and carbohydrates
Processes
Carbohydrate manufacture and refining
C13K 102
Patent
active
040186202
ABSTRACT:
A method of hydrolyzing cellulose to monosaccharides, especially glucose, by subjecting cellulose, under controlled temperature and pressure, to an aqueous mixture of calcium chloride and an acid, preferably hydrochloric acid, providing a low concentration of H.sup.+. When the starting material is pure alpha cellulose, glucose is produced in very high yields. When the starting material is a mixture of hemi and alpha cellulose, the resultant product is a mixture of pentose (xylose) and hexose (glucose) sugars. Refluxing the reaction mixture containing pure alpha cellulose, about 55% calcium chloride and only about 0.01% hydrochloric acid, based on the total reaction mass, will produce in a relatively short time relatively high yields of glucose.
REFERENCES:
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patent: 1242030 (1917-10-01), Ostenberg
patent: 1355415 (1920-10-01), Ostenberg
patent: 1428217 (1922-09-01), Classen
patent: 1936190 (1933-11-01), Dreyfus
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Chemical Abstracts, 23:15599, (1929).
Chemical Abstracts, 33:P35867, (1939).
Biocel Corporation
Jacobs Morton C.
Marantz Sidney
Wolk Morris O.
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