A kind of method for recycling treatment of clopyroxy acetate rectification raffinate
A technology of triclosan and triclosan base, which is applied in the field of recycling of rectification residues of triclosan, can solve the pollution of discharged waste liquid and the inability to obtain valuable components Effective recycling and other issues to achieve the effect of reducing the generation of three wastes, reducing environmental pressure, and improving utilization
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Embodiment 1
[0024] Take 600.0kg of the rectification raffinate of chlorpyrrox acetate (content is 61.01%), add 3000kg of water into the hydrolysis tank, turn on the mechanical stirring, control the temperature of the hydrolysis tank at 70-75°C, and add solid alkali potassium hydroxide therein 60kg, heat preservation reaction for 3h; add 15kg of activated carbon (type A) for adsorption treatment for 1h, heat preservation and pressure filtration, transfer the filtrate to an acidification kettle, slowly cool down to 20°C, stir and crystallize for 3 hours, extract the solvent, and the filter residue is triclopyr Potassium oxyacetate; 600.0 kg of tap water was added thereto, and concentrated hydrochloric acid was added dropwise for acidification; until the pH value was less than 3, solids were precipitated, filtered, and dried to obtain the finished product of clopyroxyacetic acid.
[0025] The 2nd to 4th batches respectively apply the previous batch of hydrolyzed mother liquors to replace wate...
Embodiment 2
[0031] Take 600.0kg of the rectification raffinate of chlorpyrrox acetate (content is 61.01%), add 3000kg of water into the hydrolysis tank, turn on the mechanical stirring, control the temperature of the hydrolysis tank at 70-75°C, and add solid alkali potassium hydroxide therein 60kg, heat preservation reaction for 3 hours; add 15kg of activated carbon (type B) for adsorption treatment for 1 hour, heat preservation and pressure filtration, transfer the filtrate to an acidification kettle, slowly cool down to 0°C, stir and crystallize for 3 hours, extract the solvent, and the filter residue is triclopyr Potassium oxyacetate; 600.0 kg of tap water was added thereto, and concentrated hydrochloric acid was added dropwise for acidification; until the pH value was less than 3, solids were precipitated, filtered, and dried to obtain the finished product of clopyroxyacetic acid.
[0032] The 2nd to 4th batches respectively apply the previous batch of hydrolyzed mother liquors to repl...
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