| 磷石膏综合利用副产物碳酸钙渣的再资源化 |
| |
| 引用本文： | 张兴法.磷石膏综合利用副产物碳酸钙渣的再资源化[J].化工矿物与加工,2004,33(12):21-23. |
| |
| 作者姓名： | 张兴法 |
| |
| 作者单位： | 合肥工业大学化工学院,安徽,合肥,230009 |
| |
| 基金项目： | 安徽省教育厅自然科学研究项目(2003.kj038) |
| |
| 摘 要： | 对磷石膏两步法制备硫酸钾的副产物碳酸钙渣的处置技术进行了研究。以盐酸浸取碳酸钙渣制备氯化钙,选用碳酸氢铵和氨水为碳化剂对氯化钙深加工制备碳酸钙;碳酸钙渣得到再资源化,避免再次废弃污染环境,进一步深化磷石膏的综合利用。
|
| 关 键 词： | 碳酸钙渣 碳酸钙 碳酸氢铵 |
| 文章编号： | 1008-7524(2004)12-0021-03 |
| 修稿时间： | 2004年6月18日 |
Circulation and utilization of calcium carbonate residue in the process of comprehensive utilization of phosphogypsum |
| |
| ZHANG Xing-fa.Circulation and utilization of calcium carbonate residue in the process of comprehensive utilization of phosphogypsum[J].Industrial Minerals and Processing,2004,33(12):21-23. |
| |
| Authors: | ZHANG Xing-fa |
| |
| Abstract: | The method on the circulation and utilization of calcium carbonate residue obtained in the process of preparation of potassium sulfate from phosphogypsum via a two-step approach,was studied in this paper. The calcium carbonate residue was firstly converted into calcium chloride in hydrochloric acid solution. And the as-prepared calcium chloride was further changed into calcium carbonate using ammonium bicarbonate and ammonia as the carbonization reagents. The circulation and utilization of calcium carbonate residue was helpful to prevent polluting environment again and enhanced the comprehensive utilization of phosphogypsum. |
| |
| Keywords: | calcium carbonate residue calcium carbonate ammonium bicarbonate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
