Advanced science.  Applied technology.

Search

Calcination of Calcium Carbonate and Blends Thereof: 4,828,620

Abstract: 

A method for calcination of a calcium carbonate material comprising heating the calcium carbonate material to a temperature and for a time sufficient to calcine the material to the degree desired while in the presence of a catalyst; said catalyst comprising at least one fused salt having the formula MCO.sub.3.CaCO.sub.3.CaO.H.sub.2 O.sub.x, wherein M is an alkali metal and x is 0 to 1 and formed by fusing MCO.sub.3 and CaCO.sub.3 in a molar ratio of about 1:2 to 2:1, and a blend adapted to be heated to CaO comprising a calcium carbonate material and at least one such fused salt.

Patent Number: 
4,828,620
Date Of Issue: 
05/08/1989
Inventors: 

William A. Mallow; Jerome J. Dziuk, Jr.