[1]韩红,徐明礼,王玉萍,等.羟基乙酸生产废水的资源化研究[J].南京师范大学学报(工程技术版),2006,06(04):045-49.
　HAN Hong,XU Mingli,WANG Yuping,et al.Utilization of Wastewater from the Production of Glycolic Acid[J].Journal of Nanjing Normal University(Engineering and Technology),2006,06(04):045-49.
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羟基乙酸生产废水的资源化研究
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
06卷
期数:
2006年04期
页码:
045-49
栏目:
出版日期:
2006-12-30

文章信息/Info

Title:
Utilization of Wastewater from the Production of Glycolic Acid
作者:
韩红;徐明礼;王玉萍;彭盘英;
南京师范大学化学与环境科学学院, 江苏南京210097
Author(s):
HAN Hong; XU Mingli; WANG Yuping; PENG Panying
School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China
关键词:
废水;  羟基乙酸;  硫酸铵;  浓缩结晶;  络合萃取
Keywords:
w astew ater;  g lyco lic ac id;  amm onium sulfa te;  concentrated crysta llization process;  com plex ex traction
分类号:
X783
摘要:
采用浓缩结晶法回收羟基乙酸生产废水中的硫酸铵.研究了脱水率对硫酸铵回收率及硫酸铵晶体中羟基乙酸的吸附损失等的影响,确定了适宜的回收工艺条件;以PCW-6为萃取剂,采用络合萃取法回收废水中的羟基乙酸,探讨了各因素(酸度、络合剂浓度、油水比、温度、萃取平衡时间)对羟基乙酸萃取率的影响;确定以NaOH溶液作为反萃剂,讨论了萃取剂用量对反萃率的影响等,确定和优化了萃取和反萃的工艺条件.结果表明,在本研究的最佳工艺条件下,硫酸铵的总回收率接近100%,羟基乙酸的回收率可达92%.
Abstract:
Apply ing concentra ted cry sta llization process to recla im amm on ium su lfate from the w astewa ter from the production of g ly co lic ac id, the paper stud ied the effects o f dehydra tion ratio to the recovery o f amm onium su lfate and abso rption loss o f g lyco lic ac id in amm on ium sulfa te crysta,l and ascerta ined the fitting recover ing techn ical cond itions. By w ay o f comp lex ex traction w ith PCW-6 ex tractant to recover g lycolic ac id from the w astew ater, the paper d iscussed d ifferent effects of each factor ( such as ac id ity, extractant concen tration, o il-wa ter ra tio, tem pe rature, and equilibr ium time) to the ex trac ting e ffic iency. U singNaOH so lution as str ipping agent, the paper stud ied the effec t o f N aOH dosage to the stripping e fficiency and so on, and ascerta ined and optim ized the exper im enta l cond itions. The result shows that under the ascerta ined cond itions the recov ery o f ammon ium su lfate approx im ates to 100%, and the percent recovery of g lyco lic ac id com es to 92%.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 韩红( 1979-) , 女, 硕士研究生, 主要从事环境科学的学习与研究. E-m ail: hh7902@ 163. com
通讯联系人: 彭盘英( 1952-) , 教授, 主要从事环境科学的教学与研究. E-m ail:pengpanying@ n jnu. edu. cn
更新日期/Last Update: 2013-04-29