RAW MIX FOR PREPARING PHOSPHATE BINDER AND METHOD OF PREPARATION THEREOF Russian patent published in 2000 - IPC

Abstract RU 2152913 C2

FIELD: manufacture of phosphate binders. SUBSTANCE: raw mix comprises, wt. %: 100% orthophosphoric acid, 33-36; chromic anhydride, 13-16; formalin, 10-13; calcium hydroxide, 3-8; and water, the balance. Method comprises mixing solution of orthophosphoric acid and chromic anhydride at room temperature, subsequently adding prepared aqueous suspension of calcium hydroxide to the resulting mixture and gradually adding formalin. EFFECT: lower consumption of toxic and expensive materials, simplified technological process for preparing phosphate binder having improved properties of the material. 3 cl, 3 ex, 2 tbl

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RU 2 152 913 C2

Authors

Shapovalova E.V.

Turenko F.P.

Dates

2000-07-20—Published

1998-10-08—Filed