CATALYTIC PROCESS FOR ACCELERATED DECARBOXYLATION OF CALCIUM CARBONATE AND BLEND THEREFOR.

摘要

The method for accelerated decarboxylation of a calcium carbonate material comprising heating the calcium carbonate material to a temperature and for a time sufficient to decarboxylate the material to the degree desired while in the presence of a catalyst; said catalyst comprising at least one fused salt having the formula (MX) . (CaO) wherein M is an alkali metal and X is a halide, carbonate, or oxide, and a blend adapted to be heated to form CaO comprising a calcium carbonate material and at least one fused salt having the formula (MX) . (CaO) wherein M is an alkali metal and X is a halide, carbonate, or oxide.