Gongyi Xin Hua Machinery Mining knowledge editors: Gold gold extraction methods. If that is a primary sulfide ore mine, is generally carried out after grinding the ore enrichment by flotation for gold powder, mainly used in a lot of flotation reagents, and finally get the content of the fifties and sixties or even higher after gold concentrates sent finished gold smelter smelting. Generally the original low gold content in the ore-proof track-type slag machine, per ton of ore, only 2 to 3 grams or less. 2 If the oxide ore, the general cyanide gold extraction process crawler chassis Cinder machine that will stir containing cyanide leach solution under alkaline conditions after ore milled (or heap leaching) 80 type slag explosion machine, and then a solution containing gold with activated carbon adsorption of gold, and finally through the parsing of high purity electrolytic get charcoal finished gold. "Black gold" into a "cabbage." Selling a ton of coal still earn less than six dollars, and some companies are producing a loss of more than 20 yuan per ton of coal. This is the industry spread the word. "This year's coal market prices came earlier than expected, more urgent, falling fast, falling deep, coal production and operation problems worse." Cinder machine this year, Shanxi Coal Industry Office in the relevant documents on the province's coal economic performance in the case description. "This year, coal prices decline much, harbor area about 7% decline year on year, this is the result of recent price increases, the decline elsewhere in more than 20%, and now are at a low level over the last three years since." Zhuo Information coal analyst said Liu Dongnuo. Explosion track-type slag machine, coal loading machine (certified), Cinder machine provided by Gongyi City Xinhua Machinery Factory. Gongyi City Xinhua Machinery Factory (www.gyxinhua.com) is a leader in Zhengzhou, handling equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Xinhua leader in mechanical staff warmly welcome all inquiries negotiations to create a better future, Xinhua machinery.