Method for the manufacture of aluminium zinc phosphate...

Details Method for the manufacture of aluminium zinc phosphate... Method for the manufacture of aluminium zinc phosphate...

C - Chemistry, Metallurgy

01

B

31/43, 23/65

C01B 25/36 (2006.01) C01B 25/37 (2006.01) C01B 25/45 (2006.01) C09C 1/40 (2006.01) C09D 5/08 (2006.01)

Patent

CA 1179111

ABSTRACT OF DISCLOSURE Aluminium zinc phosphate hydrates or basic aluminium zinc phosphate hydrates are manufactured by reacting 1 mole Or aluminium hydrogen phosphate with from 2.4 to 4 moles of zinc oxide, if necessary with the addition Or up to 0.4 moles of Or alkali aluminate or the equivalent quantity Or alkali hydroxide. A 50 % by weight acidic aluminium hydrogen phosphate solution is preferably used for the reaction which is carried out at an elevated temperature in the range from 30 to 80 C.. The aluminium zinc phosphate hydrates produced by the method are useful anti-corrosion pigments for use in paints.

392090

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