Types of black medicine and the objects of capture

The chemical name for the drug black dithiophosphoric phosphate. Commonly used are toluene-based black medicines, which are classified into No. 15 black medicine, No. 25 black medicine, and No. 31 black medicine because of the amount of phosphorus pentoxide added during the manufacture of the ingredients. In recent years, a successful trial of butylammonium black drug has been made.

Aerofloat used for flotation of copper sulphide ore containing pyrite, zinc and lead metals Cu, Zn ore plurality.

The characteristics of black medicine are: mostly dark green oily liquid, corrosive, slightly soluble in water, decomposed by heat, in addition to the collecting performance, there is foaming performance, its selectivity is good, the arrest of pyrite Poor ability to receive. It should be pointed out that black medicine is not easily decomposed in acidic pulp, and it is also difficult to oxidize. However, since a small amount of a vulcanizing agent such as H2SNa2S, which is a heavy oxidized ore, is dissolved therein, it is suitable to select a slightly oxidized sulfide ore with a black drug.

Use 3

Post Tension Bar For Bridge

High Strength Steel Tie Rod are steel structural members made of carbon structural steel and alloy steel, processed by machining, heat treatment and surface anti-corrosion treatment, supplemented by adjusting sleeves, lock and joints etc. The steel tie rod are important components of steel structures for construction of giant, large span buildings and ship docks. They are mainly used for prestressed parts and large span buildings in construction projects. While the strength of the product is improved, but the plasticity index is not reduced, which satisfies the principle of using the same amount of strength in the architectural design. The tie rods, tie bars, tension rods and tension bars steel grades are specified as , grade 785, grade 830, grade 930, grade 1080 etc.

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