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Process for producing sulfamethoxydiazine

A technology for the production of sulfamethoxine, which is applied in the field of veterinary drug sulfamethoxine production technology, and can solve problems such as harsh reaction conditions, numerous production steps, and unmanned production

Inactive Publication Date: 2010-09-01
RUGAO CITY XINYU ANIMAL REMEDY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to its traditional production process is relatively traditional, its production steps are numerous, and the reaction conditions are relatively harsh, so this product is hardly produced by anyone

Method used

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  • Process for producing sulfamethoxydiazine
  • Process for producing sulfamethoxydiazine
  • Process for producing sulfamethoxydiazine

Examples

Experimental program
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Embodiment

[0054] Put 640Kg of sodium methoxide into a 1500I reaction pot, raise the temperature to 64°C, and begin to steam methanol until the material in the pot is solid and basically free of methanol. After the temperature of the material in the pot is cooled to 75°C, slowly add 320Kg of chlorinated fat. After the addition, Heating and reflux, reflux reaction for 2 hours, after the reflux, close all valves, open the steam valve to heat and pressurize the reaction, control the pressure in the pot at 0.3Mpa, pressurize and react for 3 hours, the speed of heating and pressurization should not be too fast, after the reaction is over , when the temperature rises, steam the crude methyl fat. The temperature is above 125°C. Put the steamed crude methyl fat into the rectification pot for rectification. Raise the temperature to 64°C to recover methanol, raise the temperature to 70°C to recover the middle lag, and raise the temperature to 120°C , collect the pure methyl ester and use it as an a...

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Abstract

The invention discloses a process for producing sulfamethoxydiazine. The process mainly comprises five steps, namely methylation, addition, condensation, decolouration and refining; and the sulfamethoxydiazine is produced by reacting materials in a weight ratio at a certain temperature for a certain time. The process overcomes the defects of many production steps and relatively strict reaction condition of the traditional process and meets the requirements of production by adopting the intermediate and the final product prepared by the process.

Description

technical field [0001] The invention relates to a production process of the veterinary drug sulfamethoxine, which specifically adopts five steps of methylation, addition, condensation, decolorization and refining, and adjusts the processes of methylation, addition, and condensation to achieve the production of sulfonamide For the purpose of methotrexate. Background technique [0002] Sulfamethoxine is mainly used for the prevention and treatment of bacterial diseases in poultry and poultry, and has a significant effect on coccidia and the like. Because its traditional production process is relatively traditional, its production steps are numerous, and the reaction conditions are relatively harsh, therefore, almost no one produces this product. Contents of the invention [0003] The main task of the present invention is to provide a production process of sulfamethoxine, in particular to a process for realizing the production of the whole product by adopting five steps of m...

Claims

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Application Information

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IPC IPC(8): C07D239/69
Inventor 诸刚
Owner RUGAO CITY XINYU ANIMAL REMEDY MATERIAL
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