METHOD FOR PRODUCTION OF WATER-SOLUBLE CELLULOSE SULFOACETETE SALT Russian patent published in 2001 - IPC

Abstract RU 2171812 C2

FIELD: cellulose derivatives. SUBSTANCE: after termination of synthesis, product is isolated from reaction mixture by filtration followed by washing with water under dialysis filtration conditions with repetition factor 7-8 on polymer membranes characterizing by selectivity 97-99% for proteins with molecular weight 20000. Process is conducted at 20-25 C and pressure from 0.1 to 0.7 MPa. Product is then concentrated to desired content of water-soluble cellulose sulfoacetete. EFFECT: improved product purity. 2 cl, 2 dwg, 1 tbl, 3 ex

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RU 2 171 812 C2

Authors

Shishova I.I.

Pjatakina N.K.

Bon A.I.

Zhil'Tsova I.A.

Solodikhin N.I.

Gorlova G.L.

Dates

2001-08-10Published

1998-11-12Filed