<報文>硫化鐵鑛浮選に於けるアンモニウム鹽の効果について

概要

論文の詳細を見る
In the differential flotation of copper and iron sulphide ores, one of the most troublesome points is how to reactivate the iron sulphide minerals after the flotation of copper minerals in which iron sulphides had been depressed by quicklime. In this case, it is well known that if the acidity of the pulp is very high, iron sulphides may be easily floated, but strong acid treatment is unpleasant in actual operation. From this point of view, studies on the activators of iron sulphide minerals in alkaline condition were carried out to appreciate the efficiency of ammonium salts. Pyrite from Hitachi Mine, Ibaragi Pref. and pyrrhotite from Akagane Mine, Iwate Pref. were used as samples and ammonium salts such as NH_4NO_3,(NH_4)_2SO_4,NH_4Cl, NH_4F and (NH_4)_2CO_3 as activators. The results are shown in Figures from 4 to 10 and Tables 4 and 5. As examples of practical application of this method, some data examined at the dressing plants of Akagane Mine, Miyatamata Mine and Takahi Mine are also cited.
東北大学の論文
1953-09-10