Process for making a kind of chalk

Details Process for making a kind of chalk Process for making a kind of chalk

C - Chemistry, Metallurgy

09

D

6/22

C09D 13/00 (2006.01)

Patent

CA 1250105

ABSTRACT Process for making a new kind of chalk comprising the first step wherein the first coagulant is made from the mixture of paraffin, hardened oil, surface active agent and 3% glycerine solution, or the second coagulant from the mixture of beef tallow or palm oil, sodium hydroxide, magnesium oxide, surface active agent and water, and the second step wherein one of the first or the second coagulant or the mixture of the two coagulants is, immediately after being made, mixed with the chalk material, which is the mixture of calcium carbonate, titanium oxide and zinc oxide, and the solvent in order to be extrusion-molded as chalks.

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