Process for preparation of lead compounds

Details Process for preparation of lead compounds Process for preparation of lead compounds

C - Chemistry, Metallurgy

01

G

23/296, 260/481.

C01G 21/00 (2006.01) C01B 25/163 (2006.01) C01B 25/37 (2006.01) C01B 33/20 (2006.01) C01G 21/06 (2006.01) C01G 21/20 (2006.01) C01G 37/14 (2006.01) C01G 39/00 (2006.01) C01G 41/00 (2006.01) C07C 51/41 (2006.01) C07C 69/52 (2006.01) C07F 7/00 (2006.01) C09D 5/08 (2006.01)

Patent

CA 1119775

ABSTRACT OF THE DISCLOSURE A process for the preparation of lead compounds having a composition represented by the following general formula: nPbO.PbX2/x wherein Y stands for a residue of an inorganic acid or organic acid. x indicates the valency of the residue X and n is a number of from 0 to 5. which comprises reacting a lead monoxide having a true density of 8.3 to 9.2 g/cc. an average particle size not larger than 0.2 µ. an infrared absorption peak at a wave number of 1400 to 1410 cm-1 and a chromic anhydride reactivity of at least 94%. with a corresponding inorganic acid, its acidic oxide, a corresponding organic acid or a functional derivative thereof is disclosed. According to this process, various lead compounds valuable as pigments, anti-corrosive agents and thermal stablizers can be advantageously prepared without use of a catalyst such as acetic acid. Waste water con- taining lead is not discharged in this process. There- fore, the process involves no risk of environmental pollution.

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