响应面优化脱除直链烷基苯磺酸中的游离硫酸

doi:10.13218/j.cnki.csdc.2017.11.003

日用化学工业 ›› 2017, Vol. 47 ›› Issue (11): 612-615.doi: 10.13218/j.cnki.csdc.2017.11.003

响应面优化脱除直链烷基苯磺酸中的游离硫酸

徐坤华¹, 史立文¹, 葛赞¹, 计晓黎¹, 王文德²

1.赞宇科技集团股份有限公司,浙江杭州 310030;
2.杭州油脂化工有限公司,浙江杭州 311228

收稿日期:2017-08-15 出版日期:2017-11-22 发布日期:2019-03-21
作者简介:徐坤华(1985-),男,浙江人,博士,电话:(0571)88968295,E-mail:huawei845@163.com。

Response surface test optimization of removal of free sulfuric acid
mixed in linear alkyl benzene sulfonic acid product

XU Kun-hua¹, SHI Li-wen¹, GE Zan¹, JI Xiao-li¹, WANG Wen-de²

1.Zanyu Technology Group Co.,Ltd.,Hangzhou,Zhejiang 310030,China;
2.Hangzhou Oleochemicals Co.,Ltd.,Hangzhou,Zhejiang 311228,China

Received:2017-08-15 Online:2017-11-22 Published:2019-03-21

摘要/Abstract

摘要： 以单因素试验为基础,采用响应面法优化了直链烷基苯磺酸(LABSA)中的游离硫酸脱除工艺,并比较了游离硫酸脱除前后的LABSA样品的金属腐蚀性和贮存稳定性。结果表明,当氢氧化钙的质量分数1.25%,反应时间3.4 h,反应温度69 ℃,游离硫酸脱除率可达到100%。游离硫酸完全脱除后,金属的腐蚀性可显著降低,上部的ST37-2钢板质量损耗降低了63.16%,中部降低了71.88%,下部降低了67.82%。LABSA样品在35 ℃贮存2个月后,色泽基本保持不变,为29 Hazen。

关键词: 直链烷基苯磺酸, 响应面法, 金属腐蚀, 色泽

Abstract: Based upon results obtained from single factor experiments and in combination with response surface method,the eliminating technique of free sulfuric acid mixed in linear alkyl benzene sulfonic acid product was optimized.Performance of corrosion on metals caused by treated LABSA and untreated LABSA samples as well as their storage stability was compared.Results show that the optimum removal conditions are as follows:adding 1.25% Ca(OH)₂,reacting at 69 ℃ for 3.4 h.Under the above conditions,the removal rate of free sulfuric acid can be near to 100%.When the free sulfuric acid is removed completely,the corrosion on steel is reduced obviously.The weight loss of upper part of the ST37-2 steel plate sample is reduced by 63.16%,whiles the middle part and lower parts is 71.88% and 67.82% respectively.After storage at 35 ℃ for 2 months,the color of treated LABSA is 29 Hazen,which indicates that no significant color change happens.

Key words: linear alkyl benzene sulfonic acid, response surface method, corrosion on metal, color

中图分类号:

TQ423.11

徐坤华, 史立文, 葛赞, 计晓黎, 王文德. 响应面优化脱除直链烷基苯磺酸中的游离硫酸[J]. 日用化学工业, 2017, 47(11): 612-615.

XU Kun-hua, SHI Li-wen, GE Zan, JI Xiao-li, WANG Wen-de. Response surface test optimization of removal of free sulfuric acid
mixed in linear alkyl benzene sulfonic acid product[J]. China Surfactant Detergent & Cosmetics, 2017, 47(11): 612-615.

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响应面优化脱除直链烷基苯磺酸中的游离硫酸

Response surface test optimization of removal of free sulfuric acid
mixed in linear alkyl benzene sulfonic acid product

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响应面优化脱除直链烷基苯磺酸中的游离硫酸

Response surface test optimization of removal of free sulfuric acid mixed in linear alkyl benzene sulfonic acid product

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Response surface test optimization of removal of free sulfuric acid
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