Application environment-friendly acid mist inhibitor and application thereof

Abstract

The invention relates to an application environment-friendly acid mist inhibitor and an application thereof. The application environment-friendly acid mist inhibitor is composed of, by mass, 20% of sodium dodecyl sulfate, 12.5% of bromo-pyridinium, 8% of alkynol and 6.5% of amide. The inhibitor of 2 and 6 L is added to each cubic metre of electrolyte under the temperature between 55 DEG C and 65 DEG C, sulfuric acid concentration of 200 g/L, and current density between 150 and 180 A/m2. The application environment-friendly acid mist inhibitor and the application thereof can take the suppression of acid mist into account, reduce equipment corrosion, improve the workshop environment, and improve the quality of the electro deposited copper.

Description

technical field [0001] The invention relates to an acid mist inhibitor, in particular to an environment-friendly acid mist inhibitor for electrolyte and its application. Background technique [0002] At present, there are two main ways to suppress acid mist in enterprises. One is to collect the acid mist through the exhaust device and then enter the absorption tower for treatment. This method requires large investment and high energy consumption, and the effect is not good. The second is to add hollow plastic balls to the electrolytic tank to suppress the acid mist, but the plastic balls often overflow the lower tank and need to be removed in time to replenish the electrolytic tank. The plastic balls are often attached to the electrolytic copper, causing too much production trouble. Other inhibitors affect the quality of electrodeposited copper because they contain more impurities. Contents of the invention [0003] The invention provides an environment-friendly acid mis...

AI Technical Summary

Problems solved by technology

[0002] At present, there are two main ways to suppress acid mist in enterprises. One is to collect the acid mist through the exhaust device and then enter the absorption tower for treatment. This method requires large investment and high energy consumption, and the effect is not good.

The second is to add hollow plastic balls to the electrolytic tank to suppress the acid mist, but the plastic balls often overflow the lower tank and need to be removed in time to replenish the electrolytic tank. The plastic balls are often attached to the electrolytic copper, causing too much production trouble

Other inhibitors affect the quality of electrodeposited copper because they contain more impurities