Process for producing cupric hydroxide

Details Process for producing cupric hydroxide Process for producing cupric hydroxide

1982-11-18

1983-09-13

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423265, 423604, C01G 302

Patent

active

044041691

ABSTRACT:
In a process of producing cupric hydroxides, products having a high stability in storage will be obtained if phosphate ions are added to a suspension of copper oxychloride in an aqueous phase, the copper oxychloride is then reacted with alkali metal hydroxide or alkaline earth metal hydroxide, and the cupric hydroxide precipitated as a result of the suspension is washed and then re-suspended and subsequently stabilized by the addition of acid phosphate to adjust a pH value of 7.5 to 9. The suspended copper oxychloride is preferably reacted in the presence of phosphate ions in an amount of 1 to 4 grams per liter of the suspension and at a temperature of 20.degree. to 25.degree. C. and the resulting cupric hydroxide is stabilized with phosphate ions in an amount of 3 to 6 grams per liter of the suspension.

REFERENCES:
patent: Re24324 (1957-05-01), Furness
patent: 2666688 (1954-01-01), Furness
patent: 2924505 (1960-02-01), Page
patent: 3428731 (1969-02-01), Furness
patent: 3635668 (1972-01-01), Barker
patent: 4097281 (1978-06-01), Swinkels
patent: 4292281 (1981-09-01), Chilcote

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