발간논문

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Vol.1, No.2, 85 ~ 86, 1963
Title
Soda Ash Recovery in the Chemical Processing of Tungsten Ore
최규원
Abstract
A method of soda-ash recovery from the pregnant solution in the chemical processing of low grade tungsten ore is herein proposed. The recovery process is based on the fact that the solubility of sodium bicarbonate is so small and the carbonate is precipitated in the present pregnant solution when the soda ash in the solution is converted to sodium bicarbonate. The process equipment designed are also presented in this article. In the design, the maximum utilization of the present facility in Sang Dong Mines is intensively considered,;i.e. recycling and regetting of carbon dioxide gas, utilization of present building and storage tanks, etc.
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