Mercury ore dressing plant

Mercury ore dressing plant

Mercury ore easy to choose than other non-ferrous metal ores, easy rule of simple process, especially single mercury ores. Thus the mercury ore is processed locally in the mines, often in the Hang Hau or near the completion of mining – the rule or to adopt – the election – the rule of joint ventures, but generally small, shorter length of service. High-grade mercury ore crushing direct smelting of low-grade ore after beneficiation enrichment, and then smelting.

Mercury beneficiation methods

Hand-picked, gravity separation and flotation, flotation applications are widely the most effective. Mercury processing plant, most of the mercury mining enterprises were built and more than gravity – flotation process is characterized with a shaker to recover part of the medicinal cinnabar.

The production of metallic mercury

Mercury smelting fire and wet. Pyrometallurgical refining of mercury is not too high temperature (450 ~ 800 ° C) and mercury ore or concentrate roasting, will restore the mercury to gaseous separated, and then condensing into liquid mercury. Pyrometallurgical mercury smelting process is relatively simple, high technical and economic indicators, international traditional mercury smelting.

Roasting equipment rotary kiln, multiple hearth furnace, liquid roasting and mechanical distillation furnace. Wet refining mercury is leaching mercury concentrates with sodium sulfide or hypochlorite solution after the purification of the leach solution using electrolysis or replacement of metallic mercury. Wet to reduce mercury pollution, but the process is complex, technical and economic indicators as fire assay, and thus is not widely used.

Production of mercury compounds

Mercury compounds, but the industrial significance of mercury sulfide, oxide and chloride, etc.:

Mercury ore beneficiation machinery

Mercury ore beneficiation machinery

Mercuric sulfide
All mercury compounds, mercuric sulfide is the most important one. Sent to the smelting of mercury ores from mining, almost all exist in this form, mercury smelting of mineral raw materials. Natural mercuric sulfide, also known as cinnabar, or cinnabar. The HgS there a variety of isomers, the most important thing is that the α-in HgS and σ-in HgS. σ-in HgS as a red powder, often called cinnabar.

Mercuric oxide
Mercuric oxide, often bright red or orange-yellow powder, industrial production also points of red and yellow mercuric oxide. Red mercuric oxide is widely used in a variety of standard mercury batteries for battery depolarizer, yellow (red) color of mercuric oxide is also used for analytical reagents, corrosion, mildew, and the pharmaceutical industry.

Production of amalgams
Amalgam is an alloy composed of mercury and other metals, collectively, in which the titanium amalgam and zinc amalgam amalgams of two of the industrial production of higher value. Titanium amalgamation as mercury release instead of liquid mercury was used in the production of mercury lamps and fluorescent lamps.

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