利用副产物合成双甘膦  

Process for N-Phosphonomethyliminodiacetic Acid by Using By-products

作　　者：周曙光[1] 邵振威[1] 陈静[1] 李丽娟[1] 于建国[2] 

机构地区：[1]浙江新安化工集团股份有限公司精细化工研究所,浙江建德311600 [2]华东理工大学化学工程系,上海200237

出　　处：《农药》2007年第6期382-384,共3页Agrochemicals

摘　　要：提供了一种利用亚磷酸二甲酯残液(亚磷酸二甲酯生产过程中的副产)和甲缩醛(甘氨酸法生产草甘膦过程中的副产)为原料来合成双甘膦的方法,采用该工艺可以合成高含量的双甘膦,而且利用亚磷酸二甲酯残液和甲缩醛的充分水解可生成大量的氯甲烷,从而大大提高上述副产物的综合利用价值,具有很好的发展前景。N-Phosphonomethyliminodiacetic acid was synthesized by using residues as raw materials containing the mixtures and by-products from process for dimethyl phosphite and GLY glyphosate. This technique produced not only N-phosphonomethyliminodiacetic acid with high quality but also a great deal of chloromethane by the hydrolyzation of dimethyl phosphite and methylal. It will greatly improve integration value by using of byproducts mentioned above.

关 键 词：副产物 亚磷酸二甲酯残液 甲缩醛 双甘膦 氯甲烷 

分 类 号：TQ457.2[化学工程—农药化工]