神岡選鉱工場の概況
1961 年 77 巻 879 号 p. 772-778
詳細
1961 年 77 巻 879 号 p. 772-778
This paper gives the description of the outlines of the three plants, having total capacity of 3, 600, ton per day, at the Kamioka Mine of the Mitsui Mining & Smelting Co,
From the crude ore mined at the contact-metamorphic deposit, containing galena, sphalerite, and gangue minerals that are hedenbergite, limestone and epidote, the argentiferous lead and zinc concentrates and a small amount of the flake graphite are produced by the differential flotation process.
The grade of the milling feed is 0.41-2.3% Pb and 3.3-7.9% Zn.
Monthly production is 900 ton of lead concentrate (64-43% Pb), 6, 900ton of zinc concentrate(56-61% Zn)and 35 ton of graphite concentrate (87-92% C)
