【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。更多还原

【Abstract】 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 pro-duced 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 by-products mentioned above.更多还原