METHOD OF ZINC-NITRATE-PHOSPHATE CONCENTRATE PRODUCING Russian patent published in 1997 - IPC

Abstract RU 2100275 C1

FIELD: inorganic chemistry. SUBSTANCE: method involves mixing zinc oxide, water and solution of zinc monophosphate at weight ratio = 1:(1-4):(3-11), respectively, followed by addition of nitric acid and solution of calcium nitrate at amount 0.1-5.0 weight % (as measured for calcium). Temperature of reaction mixture is 50-60 C. Nitric acid is added at the rate 70-120 kg/min. The proposed concentrate is used in metallurgy and other industries. EFFECT: increased stability of concentrate, simplified method. 4 tbl

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RU 2 100 275 C1

Authors

Gunina T.V.

Chumaevskij V.A.

Kapralov A.V.

Dates

1997-12-27Published

1994-07-25Filed