Pesticide intermediates are fine chemicals. Pesticide intermediates are processed and produced from agricultural raw materials, and are an intermediate medium that combines two or more substances together. With the development of new pesticides in the country, the development of some special intermediates is rapid, such as fluorine-containing, cyano-containing and heterocyclic-containing intermediates, among which the more prominent are pyrethroid pesticide intermediates, such as chrysanthemic acid, dichloro Chrysanthemum acid, butyric acid, ether aldehyde, allyl ketone. The production sites of such intermediates are currently mainly concentrated in Shanghai, Zhejiang and Jiangsu.

The upstream of pesticide intermediates are inorganic raw materials such as yellow phosphorus and liquid chlorine, and basic organic raw materials such as methanol triphenyl, which are used in the fields of agriculture, forestry, animal husbandry and sanitation after being made into pesticide technical drugs. Agricultural intermediates are located in the middle of the industrial chain and belong to the fine chemical industry, which is highly dependent on technology, has large R&D investment, long cycle, high risk and low success rate.

The annual production capacity of major enterprises producing pesticide intermediates in my country is also declining. Take glycine, the intermediate of glyphosate, the world's largest pesticide variety, as an example. The main domestic glycine manufacturers are concentrated in Donghua Jinlong in Hebei, Donghua Jiheng in Donghua and Hengtai in Linyi in Shandong. The total production capacity accounts for more than 55% of the domestic effective production capacity, and the sales volume accounts for more than 60% of the domestic glycine market circulation. According to the production process of glycine, more than 3 tons of waste water will be produced for every ton of product produced. In the process of waste water treatment, the recovery of ammonium chloride consumes a lot of energy and is highly corrosive to equipment. , the secondary steam condensate still contains a large amount of pollutants. Tested by the National Environmental Analysis and Testing Center, the content of highly toxic substances in wastewater exceeds the national wastewater discharge standard by dozens to hundreds of times. In addition to the wastewater generated during the production process, waste gas is also generated during the glycine production process. Therefore, the production of glycine has been affected by the policy and has declined.