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US07863482B2 Process for purifying mesotrione 有权
净化甲基磺草酮的方法

Process for purifying mesotrione
摘要:
A method for reducing the cyanide levels in a mesotrione sample, said method comprising: (i) taking an aqueous solution of the mesotrione sample in an aqueous solvent, (ii) adjusting the pH of said aqueous solution to a value of 9.5 or higher, and (iii) crystallising the mesotrione out of solution is disclosed.
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