| 聚乙烯醇回收方法的改进 |
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| 引用本文： | 刘三学,杨景亮,郑自保.聚乙烯醇回收方法的改进[J].河北科技大学学报,1993(4). |
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| 作者姓名： | 刘三学 杨景亮 郑自保 |
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| 作者单位： | 河北轻化工学院环境工程系，河北轻化工学院环境工程系，河北轻化工学院环境工程系 |
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| 摘 要： | 通过加入少量助凝剂 X,使日本敷岛纺织公司的专利——SSPQ 凝结剂中的盐析剂 Na_2SO_4的用量减少了50%,总投药量减少了38%,而聚乙烯醇的回收率和 COD 去除率分别可达87%和81%,不低于 SSPQ 凝结剂的聚乙烯醇回收率和 COD 去除率。改进后的凝结剂代号为 SSPQ-1号。
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| 关 键 词： | 聚乙烯醇回收 凝结剂 盐析 |
The Improvement of the Method of Polyvinyl Alcohol Recovery |
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| Liu Sanxue Yang Jingliang Zheng Zibao.The Improvement of the Method of Polyvinyl Alcohol Recovery[J].Journal of Hebei University of Science and Technology,1993(4). |
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| Authors: | Liu Sanxue Yang Jingliang Zheng Zibao |
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| Institution: | Department Of Enviromental Engineering |
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| Abstract: | The coagulating agent SSPQ——the patent of Japan Fu-Dao Textile Compa- ny,It has been improved by adding a little amount of coagulating agent X.The amounts of salting-out agent Na_2SO_4 and total chemicals decrease to 50% and 38% respectively.The re- covery rate of polyvinyl alcohol and removal rate of COD reach to 87% and 81% respective- ly.That are not lower than the recovery rate of polyvinyl alcohol and the removal rate of COD of the coagulating agent SSPQ.The code of the improved agent is SSPQ-1. |
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| Keywords: | polyvinyl alcohol recovery coagulating agent salting-out |
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