Process for generation of precipitated calcium carbonate from calcium carbonate rich industrial by-product
申请人:Council of Scientific and Industrial Research
公开号:US06790424B2
公开(公告)日:2004-09-14
An environmentally friendly process for the production of precipitated calcium carbonate suitable for industrial application from a calcium carbonate-rich by-product of a nitrophosphate fertilizer plant. The process employs purification steps of calcination, carbonation and optional treatment with an emulsion of fatty acid or fatty acid derivatives.
一种环保的工艺,用于从硝酸磷肥料厂富含碳酸钙的副产品中生产适用于工业应用的沉淀碳酸钙。该工艺采用煅烧、碳化和选择性地用脂肪酸或脂肪酸衍生物乳液处理的净化步骤。