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| 氯化钙废液联产碳酸钙及氯化铵技术 | |
| 引用本文： | 郭玉川,钮敏,许树琴.氯化钙废液联产碳酸钙及氯化铵技术[J].河北科技大学学报,2003,24(1):59-64. |
| 作者姓名： | 郭玉川 钮敏 许树琴 |
| 作者单位： | 1. 河北科技大学科技开发总公司,河北石家庄,050018 2. 石家庄制药集团,河北石家庄,050051 3. 内蒙古伊利集团青山乳业公司,内蒙古呼和浩特,010020 |
| 摘 要： | 传统盐酸法生产饲料级磷酸氢钙工艺,生产1t饲料级磷酸氢钙要产生7～8tw(CaCl_2)为10％～15％的CaCl_2母液。少数企业将母液浓缩回收CaCl_2·2H_2O。多数企业因回收过程能源消耗高,产品销售季节性强,采取母液直接外排,结果造成二次环境污染。“盐酸法制作饲料级磷酸氢钙副产碳酸钙及氯化铵新工艺”实施专利建成的生产装置既可大量消化副产盐酸,又可在生产饲料级磷酸氢钙的同时联产碳酸钙和氯化铵产品,消除了CaCl_2废液外排。 |
| 关 键 词： | 盐酸 磷矿 磷酸氢钙 氯化钙 碳酸钙 氯化铵 环境保护 |
| 文章编号： | 1008-1542(2003)01-0059-06 |
| 修稿时间： | 2002年6月20日 |
New Technology of Hydrochloric Acid as Raw Materials for Production Feed-grade DCP Simultaneously Calcium Carbonate & Ammonium Chloride Linked Output |
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| GUO Yu-chuan.NIU Min,XU Shu-qin.New Technology of Hydrochloric Acid as Raw Materials for Production Feed-grade DCP Simultaneously Calcium Carbonate & Ammonium Chloride Linked Output[J].Journal of Hebei University of Science and Technology,2003,24(1):59-64. | |
| Authors: | GUO Yu-chuanNIU Min XU Shu-qin |
| Abstract: | 1 ton feed-grade DCP is produced when 7-8 ton 10%-15% CaCl2 mother solution was gained with traditional technology. A few enterprises concentrated the mother solution to retrieve CaCl2· H2O,but a majority directly emit the mother solution because more energy is consumed and there is seasonal change to sell as commercial product. As a result,the environment is twice polluted. The application of the new technology based on state invention patent can consume large hydrochloric acid from other process's by-product. At the same time,feed-grade DCP calcium carbonate & ammonium chloride are produced. |
| Keywords: | hydrochloric acid phosphorite rock dicalcium phosphate (DCP ) calcium chloride calcium carbonate ammonium chloride environment protection |
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