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一、概况草甘膦是高效、低毒、灭生性苗后除草剂。近年来,由于转基因作物的扩大种植,市场需求迅速增长,已连续多年占据世界农药销售额的首位。草甘膦工业生产主要有两条路线,一是甘氨酸法,目前国内甘氨酸供应充足,其中河北东华化工有限公司甘氨酸产能达到10万吨/年,居世界第一位,但是该法生产过程中环保压力较大;二是亚氨基二乙酸(I-DA)法,目前该法是国外生产企业主要采用的工艺,生产过程相对清洁环保,但由于国内IDA生产原料二乙醇胺产能很小,主要依赖进口,限制了该法在国内的使用。
First, an overview of glyphosate is efficient, low toxicity, extermination of herbicides. In recent years, due to the expanded planting of genetically modified crops, the market demand has rapidly increased and has dominated the sales of pesticides in the world for many years in a row. Glyphosate industrial production has two main routes, one glycine method, the current domestic supply of adequate glycine, of which Hebei Chemical Co., Ltd. Donghua glycine production capacity reached 100,000 tons / year, ranking first in the world, but the law of the production process The second one is iminodiacetic acid (I-DA) method. At present, this method is mainly used by foreign manufacturing enterprises and its production process is relatively clean and environmentally friendly. However, due to the small production capacity of diethanolamine, which is the raw material for IDA production in China, it mainly relies on Import restrictions on the use of the law in the country.