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Gold ore

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Gold ore

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Gold ore

Refers to the gold-bearing ore mined from the mine by hand or machinery, which also contains other metal impurities. Gold is a crystal at normal temperature, equiaxed crystal system, vertical lattice, natural and good crystal form is extremely rare, often in the form of irregular granules, agglomerates, flakes, reticular, dendritic, fibrous and spongy aggregates. . A mineral aggregate with sufficient gold content and industrial use. Gold mines are places where gold is obtained through mining operations; gold deposits are gold ore deposits of industrial scale that are formed by mineralization. Gold ore types mainly include sand gold and pulse gold. Gold is an important ornament and a high-grade material in the industry.

Form and characteristics

Gold is a crystal at normal temperature, equiaxed crystal system, vertical lattice, natural and good crystal form is extremely rare, often in the form of irregular granules, agglomerates, flakes, reticular, dendritic, fibrous and spongy aggregates. . Pure gold is golden yellow, and its color can change accordingly when it contains impurities.

Gold has a dazzling luster, and the reflectance under white light averages 74%. As the amount of silver increases, the reflectance increases, the hardness of gold increases, and the density decreases. Gold is extremely volatile, with almost no volatility above the melting point temperature to 1300℃, but the volatility is greatly increased in gas and CO atmospheres.

Gold ore processing and production processes mainly include three processes: crushing, grinding and beneficiation. In the crushing process, the three-stage closed-circuit crushing is the most modern type suitable for crushing high-hardness gold ore, which can complete the work of ore crushing and partial dissociation, thereby improving the subsequent grinding efficiency; in the grinding process, the second section and the closed grinding are efficient. The grinding process can make the gold ore mill more fully; in the beneficiation process, the more successful new processes that have emerged in recent years are representative: re-election, amalgamation, cyanidation, flotation, etc. . The specific process configuration needs to be analyzed according to the actual situation on site, and welcome to visit and exchange.

 
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