什么是MIBK萃取法

MIBK 是甲基异丁基甲酮，Methyl isobutyl ketone，(CH3)2CHCH2C(O)CH3.

就是用MIBK作为溶剂来萃取所要的成分，根据下面这段英文的叙述，MIBK的优点是具有与乙酸乙酯相似的极性，但在水中溶解度更低，对酸碱更稳定，可用用来萃取金、银和其他贵金属的氰化物溶液。

Solvent and niche applications
Unlike the other common ketone solvents, acetone and MEK, MIBK has quite low solubility in water, making it useful for liquid-liquid extraction. It has a similar polarity to ethyl acetate, but greater stability towards aqueous acid and base. It can be used to extract gold, silver and other precious metals from cyanide solutions, such as those found at gold mines, to determine the levels of those dissolved metals. Diisobutyl ketone (DIBK), a related lipophilic ketone, is also used for this purpose. Methyl isobutyl ketone is also used as a denaturing agent for denatured alcohol. When mixed with water or isopropyl alcohol MIBK serves as a developer for PMMA electron beam lithography resist. MIBK is used as a solvent for CS in the preparation of the CS spray used currently by Britis