当矿石中铅矾含量高于0.4%，矿浆pH值大于9时，浮选泡沫就发粘。
It has been found that the presence of sardinianite which is closely associated with covelline is the basic factor causing the viscous froth . If the content of sardinianite is above 0.4 % in the ore and pH > 9 in pulp , the froth becomes viscous .
铅矾