A method for the preparation of highly pure ammonium sulfate and calcite with the use of gypsum

摘要

The present invention relates to a recycling process for the production of calcite and ammonium sulfate with a high purity of at least 95%, which, by means of a carbonation for the binding of carbon dioxide within the crystal structure of a mineral be produced, and in the present invention, gypsum waste with carbon dioxide, which is a greenhouse gas is converted, so that the carbon dioxide as a stable mineral is bonded, and as the products are produced highly pure calcite and ammonium sulfate.