Hexazinone cleaning production technology

Abstract

The invention discloses a hexazinone cleaning production technology. According to the technology, ethanol, lime nitrogen, cyclohexylamine, dimethylamine, dimethyl sulfate, sodium and phosgene are taken as main raw materials, a series of chemical reactions are carried out in a solvent, and then desolventizing and concentrating, crystallization separation and drying are carried out so as to obtain afinished product of hexazinone. The technology has the advantages that solvent extraction is omitted, the reaction process is reduced, the efficiency is improved, the energy consumption is saved by 10%, and meanwhile, the conversion rate is increased by 5%; the waste water quantity is greatly decreased, a special reactor is used in the cyclization process, the use of dimethylamine is reduced, sothat the phenomenon that great troubles are brought to removal of dimethylamine in the solvent and recovery of the solvent due to the fact that dimethylamine is dissolved in the solvent can be avoided, the severe pollution of dimethylamine to the environment is reduced, the quality of the solvent is guaranteed, and the content of active compounds of hexazinone is qualified, namely, the content ofthe active compounds of hexazinone is greater than or equal to 98%; and the use of a lot of water and dimethylamine is saved, so that the production cost is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of product production technology, in particular to a clean production process of hexazinone. Background technique [0002] Hexazinone is mainly used in the maintenance and opening of forest fire breaks, tending young forests, forest transformation, and weeding and irrigation along railways, highways, airports, warehouses, and docks, and has special effects on the prevention of "Canada solidago". This product is extremely lethal to forest weeds, shrubs, vines and other plants. It can be absorbed by the stems and leaves of plants, conduct conduction through the xylem inside the plants, and directly interfere with the photosynthesis of plants, causing plant metabolism disorder and death. It can cause plant death; it can also be absorbed by the root system of plants, and then transmitted to stems and leaves to interfere with plant photosynthesis, cause metabolic disorders and cause plant death. Whether hexazino...

AI Technical Summary

Problems solved by technology

[0003] The existing production process has high production cost, low efficiency of the reaction process, large energy consumption, low conversion rate, large amount of waste water, and the waste water contains toxic and harmful substances such as dimethylamine, which causes environmental damage. serious pollution

Images