Purification of cellulose and starch ethers with counter current

Details Purification of cellulose and starch ethers with counter current Purification of cellulose and starch ethers with counter current

1980-11-23

1983-09-13

Clingman, A. Lionel

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 96, 536 98, 536 99, 536111, C08B 1120, C08B 3108

Patent

active

044043708

ABSTRACT:
A process for the purification and isolation of cellulose or starch ethers wherein directly after the etherification step the suspension agent and the extraction of the ether product with the purifying agent is carried out on the same continuously working filter.

REFERENCES:
patent: 3498971 (1970-03-01), Blaga
patent: 3873518 (1975-03-01), Strange et al.
patent: 4048433 (1977-09-01), Burns et al.
patent: 4229572 (1980-10-01), Zweigle
patent: 4296235 (1981-10-01), Ziche

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