氯化通常是使贵金属转入溶液的重要手段之一。以往试验的水溶液氯化都在高酸度下进行,一般在3当量盐酸酸度左右,有的氯化酸度甚至高达6N 以上。但我所最近提出的《复硫脲活性炭吸附贵金属》的方法,要求氯化液酸度在1N 以下。如能在低酸度下进行水溶液氯化,直接获得一低酸度氯化液,则吸附试验即有可能应用到工艺流程上去。 Chlorination is often one of the most important ways to bring precious metals into solution. In the past, the chlorination of aqueous solutions was carried out under high acidity, usually about 3 equivalents of hydrochloric acid, and even some of the chloride acidity was as high as 6N. However, I recently proposed “complex thiourea activated carbon adsorption of precious metals,” the method requires chlorinated liquid acidity below 1N. If the low acidity of the aqueous solution of chlorination, direct access to a low acid chloride solution, the adsorption test that may be applied to the process up.