Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1989-02-15
1990-06-19
Hollrah, Glennon H.
Chemistry: fertilizers
Processes and products
Forms or conditioning
A01N 4728
Patent
active
049350480
ABSTRACT:
Cellulosic materials are physically and/or chemically modified by contact with a combination of urea and sulfuric acid in which at least 25 percent of the sulfuric acid is present as the monourea adduct of sulfuric acid. The cellulosic materials thus treated possess uniquely modified physical and chemical properties. The methods of the invention can be employed to weaken the physical structure of the cellulosic material and thereby to assist in clearing land of vegetation and vegetation residue and in compacting and other processing of waste cellulosic materials. The methods of the invention can also be employed to increase the food value of cellulosic materials for animals, including humans, and, in particular, to increase the food value of such materials for ruminant mammals. Novel cellulosic compositions suitable for use in the methods of this invention and novel compositions containing cellulosic materials which have been physically weakened, modified and/or which have improved food value, are also provided.
REFERENCES:
patent: Re1995 (1865-06-01), Hoffman
patent: 1340708 (1920-05-01), Fjellanger
patent: 1878852 (1932-09-01), Hoppler et al.
patent: 1917539 (1933-08-01), Miles
patent: 1919623 (1933-08-01), Dreyfus
patent: 2767108 (1956-10-01), Fetzer
patent: 2978359 (1961-04-01), Wedell
patent: 3432482 (1969-03-01), Ohfuka et al.
patent: 3558530 (1971-01-01), Schroder et al.
patent: 3660070 (1972-05-01), Maruta et al.
patent: 3778431 (1973-12-01), Knightlinger et al.
patent: 3816375 (1974-06-01), Bozer et al.
patent: 3873734 (1975-03-01), Higgins et al.
patent: 3878304 (1975-04-01), Moore
patent: 3918952 (1975-11-01), Neumiller
patent: 4116664 (1978-09-01), Jones
patent: 4214888 (1981-10-01), Young
patent: 4310343 (1982-01-01), Verdegaal et al.
patent: 4315763 (1982-02-01), Stoller et al.
patent: 4397675 (1983-08-01), Young
patent: 4402852 (1983-09-01), Young
patent: 4404116 (1983-09-01), Young
patent: 4439348 (1984-03-01), Akerberg
patent: 4445925 (1984-05-01), Young
patent: 4447253 (1984-05-01), Young
patent: 4451577 (1984-05-01), Coss
patent: 4474925 (1984-10-01), Sartoretto et al.
patent: 4512813 (1985-04-01), Young
patent: 4522644 (1985-06-01), Young
patent: 4589925 (1986-05-01), Young
patent: 4626417 (1987-05-01), Young
patent: 4664717 (1986-12-01), Young
patent: 4673522 (1987-06-01), Young
patent: 4686017 (1987-08-01), Young
patent: 4722986 (1988-02-01), Young
patent: 4755265 (1988-07-01), Young
Science News, vol. 123, No. 23, Jun. 4, 1983, p. 366, "Cellulose Digestion by Lab Bacteria".
The Condensed Chemical Dictionary, 7th Edition, Van Nostrand Reinhold Co., New York, 1969, p. 908.
"Organic Chemistry of Bivalent Sulfur", Chemical Publishing Co., 1962, pp. 14, 15, 94 and 95.
"The Chemistry of Carboxylic Acids and Esters", Interscience Publishers, 1969, pp. 732, 733, 758 and 759.
D. F. duToit, Verslag Akad. Wetenschappen, 22, 573-4 (abstracted in Chemical Abstracts, 8, 2346, 1914).
L. H. Dalman, "Ternary Systems of Urea and Acid. I. Urea, Nitric Acid and Water. II. Urea, Sulfuric Acid and Water. III. Urea, Oxalic Acid and Water." JACS, 56, 549-53, (1934).
Sulfur Institute Bulletin, No. 10, (1964), "Adding Plant Nutrient Sulfur to Fertilizer".
Kirk-Othmer Encyclopedia of Chemical Technology, Third Edition, John Wiley and Sons, New York, 1980.
Jelks, "Treating Cellulosic Plant Matter", Chemical Abstract, 91:37800r, (1979).
Bach et al., "Destroying Potato Plants," Chemical Abstract, 95:37118g, (1981).
Adalla, Chemical Abstracts, 93:90069b, (1980).
Kamilova, Chemical Abstracts, 93:63397a, (1980).
Chan, Chemical Abstracts, 88:131876c, (1978).
Title 40, Code of Federal Regulations, Part 180, Sub-Part D, Section 180.1019.
Hollrah Glennon H.
Kraus Eric
Laird Michael H.
Union Oil Company of California
Wirzbicki Gregory F.
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