Beneficiation of magnesite ores by froth separation

Abstract

In 1980 the electric power transmission lines were constructed; work is in progress on preliminary drainage of the overburden and on capital works. BENEFICIATION OF ~GNESITE ORES BY FROTH SEPARATION V. E. Potapenko~ D. I. Suvorova, and V. V. Tyuryukhanova UDC 622.765.4:622.368.2 The Uralmekhanobr institute and the Sibglektrostal ~ Works have developed and tested in the laboratory and pilot-plants various schemes for beneficiation of magnesites of the Satkin, Talsk, Savin, Semibratskii, and other deposits [1-4].The best magnesite concentrates were obtained by a flotation scheme providing for crushing of the ore to the -0.2 mm fraction, removal of the slime with grains smaller than 20 ~m, and flotation of the sands in a soda medium with an aliphatic acid collector using sodium hexametaphosphate as depressant.The magnesite losses with the slimes are about 20%.

The Use of Metallurgical Wastes in Road Construction

“…To study the dependence of the total extraction factor of magnetic particles on the thickness of the initial layer of the separated mixture, we set d = 29.8 μm, α i = 15 deg, vk = 0.02 mps in formula (2)…”

“…They contain a large number of iron-containing components and rocks that can be used as building materials. They can be used in the preparation of fine-grained concrete, as a mineral powder, in the construction of roads, in housing construction, for the production of paints, etc [1,2].…”

Increasing environmental compatibility of metal production

“…Separator 26-SB (Fig. 2) is a counterflow magnetic drum unit designed to concentrate drains of ball mills and classifiers [7]. Separator 26-SB operating principle is as follows: feed goes through the pipe to the separator charging box, then it is carried by two feed branches to the feed tray and under the rotating drum.…”

Determination of the magnetic separator separation function

“…The separator 26-DS ( Fig. 2) is a counter flow magnetic drum separator and is designed to enrich discharges of ball mills and classifiers [7]. The principle of operation of the separator 26-DS is: load pipe enters the feed box of the separator where two load nozzles are directed to the feeding tray and under the rotating drum.…”