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1. Method summary The sample is melted and leached in an alkali, and W6+ is reduced to W5+ with titanium trichloride in a hydrochloric acid medium, thereby reacting with thiocyanate to form a stable yellow-green complex for photometric determination. Mo6+ is also reduced by Mo5+, and reacts with ...Read more »
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At present, the comprehensive recovery of copper resources in tailings mostly adopts combined heavy floatation, single floatation, hydrometallurgy and other technical measures. Xie Jianhong and others conducted a study on the utilization of flotation tailings from a copper mine in Shaanxi. Under ...Read more »
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The answer is simple: It is essential to have the right combination of RELEASE AGENTs and PLUNGER LUBRICANTs. The above castings have been produced with FOCHEM’s unique release agent ISOLAT 4007N in conjunction with the plunger beads ISOLAT 80 G. General It is common knowledge, tha...Read more »
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The furnaces for melting gold and silver generally use round pits. Gas and diesel are mostly used as fuel. Or use the usual coke furnace, gas or diesel furnace, mostly made of magnesia bricks or refractory clay bricks. The size of the furnace is mainly determined by the size of the crucible used....Read more »
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The furnaces for melting gold and silver generally use round pits. Gas and diesel are mostly used as fuel. Or use the usual coke furnace, gas or diesel furnace, mostly made of magnesia bricks or refractory clay bricks. The size of the furnace is mainly determined by the size of the crucible used....Read more »
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1 Efficient organization plan 1.1 Enhance the balanced performance of operations As we all know, the smelting of metals is carried out in a dedicated furnace. Generally speaking, different metallurgical furnaces often have relatively simple functions, which makes a large number of gold smelting f...Read more »
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Main steps ①Sampling, samples include minerals, refined products, debris, etc., requiring careful collection of representative samples. Because precious metals often exist in minerals in a random dispersion state, it is often necessary to use a large amount of minerals to take out a representa...Read more »
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The main steps of aluminum alloy melting are as follows: ①Loading. The preheated crucible is filled with prefabricated alloy ingots and high-quality reheating materials, and then the fol alloy is added, and the alloying elements are added later. ②Temperature control. Strictly control the ...Read more »
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Crucible furnace gold alchemy is carried out in the crucible furnace. The crucible furnace is built with ordinary clay refractory bricks, with a cone shape, the upper part is smaller in diameter than the bottom, the bottom of the furnace is laid with 2 to 3 layers of refractory bricks in staggere...Read more »
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High-purity graphite crucible material has excellent characteristics such as high sublimation temperature, high mechanical strength at high temperature, self-lubrication and good thermal shock resistance, but it is oxidized when it is higher than 4500C in an oxygen-containing atmosphere. In order...Read more »
