|本期目录/Table of Contents|

[1]齐秀芳,陈李和,唐杰.微乳液法处理RDX的生产废酸[J].火炸药学报,2019,42(3):312-318.[doi:10.14077/j.issn.1007-7812.2019.03.018]
 QI Xiu-fang,CHEN Li-he,TANG Jie.Treatment of Waste Acid from RDX Production by Micro-emulsion Method[J].,2019,42(3):312-318.[doi:10.14077/j.issn.1007-7812.2019.03.018]
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微乳液法处理RDX的生产废酸()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
42卷
期数:
2019年第3期
页码:
312-318
栏目:
出版日期:
2019-06-30

文章信息/Info

Title:
Treatment of Waste Acid from RDX Production by Micro-emulsion Method
作者:
齐秀芳 陈李和 唐杰
西南科技大学国防科技学院, 四川 绵阳 621010
Author(s):
QI Xiu-fang CHEN Li-he TANG Jie
School of National Defense Science and Technology, Southwest University of Science & Technology, Mianyang Sichuan 621010, China
关键词:
应用化学RDX废酸微乳液法萃取循环利用直接硝解法
Keywords:
applied chemistryRDXwaste acidmicro-emulsion methodextractionrecyclingdirect nitrolysis method
分类号:
TJ55;O69
DOI:
10.14077/j.issn.1007-7812.2019.03.018
文献标志码:
-
摘要:
为除去直接硝解法合成RDX时生产废酸中的不稳定有机副产物,以正庚烷/正己烷为油相溶剂(O)、十二烷基苯磺酸钠(SDBS)/十二烷基硫酸钠(SDS)为表面活性剂(S)、正丁醇/正戊醇为助表面活性剂(C)与水(W)配制成微乳液,对直接硝解法合成RDX结晶但不氧化产生的废酸用微乳液进行萃取,对萃取后的废酸进行高效液相色谱分析,甲醛吸收液用NaOH溶液滴定,考察了不同微乳液配方、微乳液与废酸的体积比、萃取次数、微乳液循环使用等因素对废酸萃取效果的影响。结果表明,O、S、C和W质量比为13:2:8:1时配制的微乳液萃取与循环使用效果最佳,微乳液与废酸体积比为5:1时萃取一次可除去废酸中约95%的不稳定副产物,可在被萃取物加热分解后循环使用4次,萃取后的废酸在70℃保持稳定。
Abstract:
In order to extract the unstable organic by-products from the waste acid of RDX production by the direct nitrolysis method, micro-emulsions were prepared using n-heptane/n-hexane as oil phase solvent(O), sodium dodecyl benzene sulfonate (SDBS)/sodium dodecyl sulfate(SDS) as surfactant(S), n-butanol/n-pentanol as cosurfactant(C) and water(W). The waste acid generated after RDX crystallization but not oxidation was extracted with the micro-emulsions. The extracted waste acid was analyzed by high performance liquid chromatography (HPLC). The formaldehyde absorption solution was titrated by NaOH solution. The effects of different micro-emulsion formulations, volume ratio of micro-emulsion to waste acid, extraction times and recycling of micro-emulsion and other factors on the extraction efficiency of waste acid with micro-emulsion were investigated. The results show that the extraction efficiency and recycling of prepared micro-emulsion is the best when the mass ratio of O:S:C:W is 13:2:8:1. When the volume ratio of micro-emulsion to waste acid is 5:1, about 95% of the unstable by-products in waste acid can be removed at one time. The micro-emulsion can be recycled for 4 times after the extraction being heated and decomposed, and the extracted acid remains stable at 70℃.

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备注/Memo

备注/Memo:
收稿日期:2018-6-27;改回日期:2018-11-20。
基金项目:西南科技大学博士研究基金(No.09zx7101)
作者简介:齐秀芳(1976-),女,博士,从事含能材料研究。E-mail:qf412@sina.com
更新日期/Last Update: 1900-01-01