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2 045 598

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IPC

(21) (22)

Application

93042745/12, 1993-08-25

(22)

Actual filing date

1993-08-25

(45)

Published

1995-10-10

(72)

Inventor

Zakharov Valentin IvanovichBogdan Vasilij MakarovichLazareva Militsa AleksandrovnaShalimova Tamara ViktorovnaBelodubrovskij Roman Borisovich

(73)

Holder

Zakharov Valentin IvanovichBogdan Vasilij MakarovichLazareva Militsa AleksandrovnaShalimova Tamara ViktorovnaBelodubrovskij Roman Borisovich

METHOD FOR PRODUCTION OF POWDERY CELLULOSE Russian patent published in 1995 - IPC

Abstract RU 2045598 C1

FIELD: production of filler or thickener in chemico-pharmaceutical, food and paint and varnish industries. SUBSTANCE: cellulose is subject to grinding. Ground cellulose is subjected to hydrolysis with diluted acid, such as hydrochloric, sulfate, phosphoric, nitric or acetic acid at pressure of 7.0-50.0 atm. and temperature of 165-240 C for 0.5-90.0 min. Pressure is released to atmospheric with rate of 0.1-30.0 atm./s. Cellulose is ground. EFFECT: higher efficiency. 4 cl, 1 tbl

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RU 2 045 598 C1

Authors

Zakharov Valentin Ivanovich

Bogdan Vasilij Makarovich

Lazareva Militsa Aleksandrovna

Shalimova Tamara Viktorovna

Belodubrovskij Roman Borisovich

Dates

1995-10-10—Published

1993-08-25—Filed