Recovery of Chromating Baths with the Aid of Ion Exchangers.

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作者：
Wolotzkow, Feodor P.
Hartinger, L.
机构：
来源：
MO Metalloberflache Beschichten von Metall und Kunststoff | 1978年 / 32卷 / 03期
关键词：
CHEMICAL OPERATIONS - Ion Exchange;
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摘要：
It is shown that the metal ions accumulated in the chromating bath during the chromating of zinc can be removed with the aid of a highly acidic cation exchanger. A study is made of the effect of variations of the chromic acid and zinc concentrations on the equilibria of the exchange reactions. High chromic acid concentrations have a strong effect on the exchange capacity. However, if the chromic acid concentration remains under 25 g/liter, good results in the bath recovery can be obtained.
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页码：104 / 109
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