申请人:Wang Wei
公开号:US20150307528A1
公开(公告)日:2015-10-29
This invention provides the herbicidal active ingredient, a dimethylamine salt crystal of N-phosphonomethyl glycine (glyphosate), its preparation process and a solid formulation containing the crystalline dimethylamine salt of glyphosate as well as its application. Said preparation process comprises adding glyphosate and a suitable amount of solvent into a conventional reactor and introducing a dimethylamine gas for reaction, wherein the reaction temperature is controlled between 5 and 90° C. After the completion of the reaction, the temperature is reduced slowly to a certain value, a crystalline dimethylamine salt of glyphosate is precipitated (or precipitated after a crystal seed is added).
本发明提供了除草活性成分,即N-磷酸甲基甘氨酸(草甘膦)的二甲胺盐晶体,其制备过程和含有草甘膦二甲胺盐晶体的固体配方以及其应用。所述制备过程包括将草甘膦和适量的溶剂加入常规反应器中,并引入二甲胺气体进行反应,其中反应温度在5至90°C之间控制。反应完成后,温度缓慢降至一定值,沉淀出草甘膦的二甲胺盐晶体(或在添加晶种后沉淀)。