发明授权
US09079857B2 Process for preparing alkali metal pyrithione and its polyvalent metal complexes from pyridine oxide 有权
由吡啶氧化物制备碱金属吡啶硫酮及其多价金属络合物的方法

Process for preparing alkali metal pyrithione and its polyvalent metal complexes from pyridine oxide
摘要:
The present invention generally relates to a novel process for preparing alkali metal pyrithione from pyridine N-oxide, using a sulfurination agent and a base agent. In particular, the present invention relates to an efficient process for preparing polyvalent metal complexes of sodium pyrithione from the alkali metal pyridine N-oxide described herein.
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