PRODUCTION METHOD FOR HIGH-PURITY CALCITE AND AMMONIUM SULPHATE BY USING GYPSUM

摘要

The present invention relates to a recycling method for producing, to a high purity of at least 95%, calcite and ammonium sulphate generated by means of a carbonation reaction for fixing carbon dioxide inside the crystal structure of a mineral, and, in the present invention, waste gypsum is reacted with carbon dioxide, which is a greenhouse gas, such that the carbon dioxide is fixed as a stable mineral, and high-purity ammonium sulphate and high-purity calcite are produced as resultant products.