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Waste treatment process in glyphosate technical production process

A production process and waste treatment technology, which is applied to the removal of solid waste, the general layout of the crystallization device, transportation and packaging, etc., can solve problems such as environmental pollution, and achieve the effect of solving environmental pollution problems and economically effective treatment

Active Publication Date: 2020-09-29
HUBEI TAISHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a waste treatment process in the production process of glyphosate technical material. This process can remove the glyphosate lumps and granules from the glyphosate waste without adding any auxiliary materials. Glyphosate waste has been transformed into high-quality products, waste recycling has been realized, the purpose of economically and effectively treating glyphosate waste has been achieved, and the huge environmental pollution problem caused by glyphosate waste has been completely solved.

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  • Waste treatment process in glyphosate technical production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]Weigh 65g of glyphosate waste, add 1000mL of solvent, heat the mixture to 95°C, and keep the temperature constant. After about 30 minutes, complete dissolution of the material was observed. After all the materials were dissolved, the temperature was lowered, and when the temperature dropped to 85°C, 50 mL of crystal seed crystals were added. When the material temperature dropped to 35°C, the mixture was subjected to solid-liquid separation. After the separation is complete, add quantitative soft water to wash the material. After the crystallization is completed, the solid-liquid separated liquid is used as a seed crystal, and the separated liquid after washing is used as a solvent. The mass of the glyphosate technical wet powder obtained by solid-liquid separation is 33g. After drying the glyphosate technical wet powder, it is detected that the content of glyphosate in the glyphosate technical dry powder is 95.1%, which meets the requirements of glyphosate. The nation...

Embodiment 2

[0035] Weigh 75g of glyphosate waste, add 1000mL of solvent, heat the mixture to 100°C, and keep the temperature constant. After about 30 minutes, complete dissolution of the material was observed. After all the materials were dissolved, the temperature was lowered, and when the temperature dropped to 70°C, 50 mL of crystal seed crystals were added. When the material temperature dropped to 30°C, the mixture was subjected to solid-liquid separation. After the separation is complete, add quantitative soft water to wash the material. After the crystallization is completed, the solid-liquid separated liquid is used as a seed crystal, and the separated liquid after washing is used as a solvent. The mass of glyphosate technical wet powder obtained by solid-liquid separation is 38g. After drying the glyphosate technical wet powder, it is detected that the content of glyphosate in the glyphosate technical dry powder is 95.9%, which meets the glyphosate content. The national standar...

Embodiment 3

[0037] Weigh 85g of glyphosate waste, add 1000mL of solvent, heat the mixture to 100°C, and keep the temperature constant. After about 30 minutes, complete dissolution of the material was observed. After all the materials were dissolved, the temperature was lowered, and when the temperature dropped to 75°C, 50 mL of crystal seed crystals were added. When the material temperature dropped to 35°C, the mixture was subjected to solid-liquid separation. After the separation is complete, add quantitative soft water to wash the material. After the crystallization is completed, the solid-liquid separated liquid is used as a seed crystal, and the separated liquid after washing is used as a solvent. The mass of the glyphosate technical wet powder obtained by solid-liquid separation is 44g. After drying the glyphosate technical wet powder, it is detected that the content of glyphosate in the glyphosate technical dry powder is 95.6%, which meets the requirements of glyphosate. The nati...

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Abstract

The invention provides a waste treatment process in the glyphosate technical production process. The waste treatment process comprises the following steps of dissolving the glyphosate waste in a solvent, crystallizing the dissolved material, adding a seed crystal during crystallization, carrying out solid-liquid separation after the crystallization is completed, adding soft water to wash the separated crystal after the solid-liquid separation is completed, wherein the solvent is secondary material washing water of glyphosate, and the crystallization seed crystal is primary material washing water of glyphosate. According to thewaste treatment process, under the condition of not adding any auxiliary material, glyphosate blocks and granules in the glyphosate waste are converted into superiorproducts, so that the waste is recycled, the purpose of economically and effectively treating the glyphosate waste is achieved, and the problem of huge environmental pollution caused by the glyphosatewaste is thoroughly solved.

Description

technical field [0001] The invention relates to the field of production waste treatment technology, in particular to a waste treatment technology in the production process of glyphosate technical substance. Background technique [0002] There are two mainstream production routes for glyphosate production, one is the IDA route, and the other is the glycine route. The two routes are subdivided into multiple methods, and each method has its own advantages and disadvantages due to the difference in raw materials, methods and by-product treatment methods. At present, the production of technical glyphosate by the glycine route is developing rapidly. Domestic enterprises have explored for many years, optimized production technology, adopted advanced large-scale equipment and DCS automatic control system, product yield, raw material consumption control level, etc. have been continuously improved, and the comprehensive utilization of methyl chloride by-products has also highlighted ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00B01D9/02
CPCB09B3/00B09B5/00B01D9/0059B01D9/0036B09B3/40
Inventor 周立华郑海阳王喜鹏万威向伟谭江南
Owner HUBEI TAISHENG CHEM
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