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Position: Home > Articles > Application of Waste Sulphuric Acid in N-Phosphonomethyliminodiacetic Acid Synthesis Process Agrochemicals 2011,50 (11) 31-32+44

废硫酸在双甘膦生产工艺中的应用

作  者:
童国羡;吴涛;陈静;张海良;李培国;黄鑫
单  位:
浙江新安化工集团股份有限公司精细化工研究所
关键词:
废硫酸;双甘膦;草甘膦
摘  要:
[目的]甘氨酸(Gly)法合成草甘膦产生大量的废硫酸,为了提高废硫酸的附加值,将其应用到亚氨基二乙酸(IDA)法草甘膦生产工艺中。[方法]采用废硫酸代替盐酸作为催化剂,以亚氨基二乙酸为主要原料与亚磷酸、甲醛发生反应生成双甘膦。[结果]实验结果表明:使用废硫酸对合成双甘膦反应收率及产品品质均无影响。[结论]对该工艺进行了经济效益分析,结果表明具有良好的经济效益。
译  名:
Application of Waste Sulphuric Acid in N-Phosphonomethyliminodiacetic Acid Synthesis Process
作  者:
TONG Guo-xian,WU Tao,CHEN Jing,ZHANG Hai-liang,LI Pei-guo,HUANG Xin(Institute of Fine Chemical Industrical,Xin'an Chemical Industrial Group Co.,Ltd.,Jiande 3l1600,Zhejiang,China)
关键词:
waste sulphuric acid;N-phosphonomethyliminodiacetic acid;glyphosate
摘  要:
[Aims] The glycine process glyphosate leads to a lot of waste sulphuric acid.In order to improve added value of waste sulphuric acid from the glycine process glyphosate,it was applied in IDA process glyphosate.[Methods] With the waste sulphuric acid as catalyst instead of hydrochloric acid,N-phosphonomethyliminodiacetic acid(PMIDA) was synthesized from the iminodiacetic acid,phosphorous acid and formaldehyde.[Results] The results showed that no effect on the yield and quality of PMIDA was observed when waste sulphuric acid was used.[Conclusions] The results showed that the process had good economic benefit based on the evaluation.

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