低氯甜菜碱的制备.pdf

第22卷第5期
化学研究与应用
Vol 22 No5
2010年5月
Chernical Research and Application
May,2010
文章编号:1(004-1656(2010)05-0643-03
Preparation of low-chloride betaine
MA Xiao-yan, WANG Jia, YANG Kun? GAO Guo-wei?, MEN Jian?
1. College of Material and Chernical Engineering, Chengdu University of Technology, Chengdu 610059, China
2. College of Chemistry, Sichuan University, Chengdu 610064, China
Key words betaine; betaine inorganic salt; low-chloride; prepar
低氯甜碱的制备
马晓艳',王稼2,杨昆2,高国伟2,门健2
1.成都理工大学材料与化学化工学院,四片成都610059;
四川大学化学学院,四川成都610064)
摘要:本文报道了一种低氯甜菜碱的制备方法。通过将甜菜碱粗品分别与无机酸如硫酸、盐酸和磷酸成盐后
再加碱精甜菜碱,经离子色谱测定,礫酸盐甜菜碱精制所得甜菜碱氯离子含量由市售的2%降低到0.02%
左右,产品质量可很好满足化妆品行业的要求。
关键词:甜菜碱;甜菜碱无机盐;低氯;制备
中图分类号:0627.7文献标识码:A
Betaine [(CH, ) N 'CH, COO]is a kind of industry.
amphoteric surfactant, which has been widely added
In order to decrease the content of chloride in
into daily chemicals as an adi ie for its celent betaine, an efficient s n hetic route has been proposed,
properties in bubbling, thickening and moisturizing in which the crude betaine was converted to the
12. According to the requirements in cosmetic betaine inorganic salt in strong acidic condition
industry, the content of the chlorine ion of the followed by the reversion process under the condition
betaine should be controlled in the range of 0.01-of inorganic alkali
0.03%. The excessive chlorine ion will imitate the
skin and will reduce the viscosity, the foaming and
Experimental parts
the stability of the product. Therefore, t is necessary 1.1 Reagents and Instruments
to prepare low chlorine bet aine.
Reagents and chemicals were purchased from
As repored in literature, the content of chloride Chengdu Kelong Chemical Reagent Factory with AR
ion of the betaine prepared by conventional method
such as KOH, CICH2 COOH,33.3%(CH,), N, NAOH,
is in the range of 2-3%042, even with the ion- 85% Hg PO,,H, SO HCI and anhydrous ethanol
exchange method or solvent method, the content o
All melting points were determined on XRC
the chloride ion remained around 1%which was
melting point apparatus(Instrument Factory of
still unable to meet the requirements of the cosmetic
收稿日期:2009-06-29;修回日期:201001-31
基金项目:四川大学大学生创新实搬计划项日
联系人简介:『]健(1963-),女,讲,主要从事高性能聚合物及其単体研究。Fmal:gaosunday(@yahoo.com.cn