1、前言 ××县宏宝矿业有限公司为××矿业公司管理下的一个民营企业，拥有××铅锌矿区四个采矿井口�

National "Eleventh Five-Year" 863 major project "Coal-based multi-generation demonstration project" in Beijing through the technical acceptance. Zhao Yuhai, director of high-tech department of Ministry of Science and Technology, Yuan Jianxiang, deputy director of high-tech cent

To improve the properties of the alloy by controlling the grain boundary microstructure technology has received increasing attention, it is widely studied thermomechanical processing techniques used to control the grain size (grain boundary density), the grain boundary character distribution (GBCD)

Of Salt Lake deposits are mainly distributed in Qinghai, Tibet, Inner Mongolia, mainly solid deposit of salt resources in Salt Lake halite, Glauber's salt, trona, gypsum, carnallite, sylvite, bischofite column Borate , sodium borate, water boron and so on. Liquid deposits containing potassium,

Statistics show that in the traffic accident on the highway, the accident occupancy rate caused by a puncture is more than 70%. From this we can see the importance of the tyre to the vehicle. Today, Xiao Bian talked to you about the seven taboos on the use of tires. I hope that the owners of the

The continuous haze weather in Beijing from November to December last year made PM2.5 the unfamiliar indicator for the first time into public view. Due to its considerable influence on the human body, the new term in the eyes of the public quickly became a “regular guest” of media news

See Table 1. Table 1 The difference between the specifications, performance and fuse of the detonating cord Performance indication Detonating cord fuse Exterior Outer diameter d = 5.7 ~ 6.2mm, red or red Outer diameter d = 5.2 ~ 5.8mm, white Drug core Black gold , white Black powder, blac

1. Overview This is China's Yunnan Tin Industry Machinery Manufacturing Co., Ltd. (hereinafter referred to as mechanical Yunnan Tin, former Yunnan Tin Machinery Plant) improved on the original Soviet-CC-2 type shaker, so called YTC shaker Its structure is shown in Figure 1. It uses a cam-lever

China Gold Corporation Jinchangyu Gold is a gold mine owned mining Xuanye comprehensive daily processing 1000t ore, gold extraction process ten gold flotation concentrate cyanidation process, the daily processing of gold concentrates 30t, cyanide The process is two dip and two washes. The bottom wa

China's rare earth metals mine mainly open-pit mining, underground mining is the only individual mines. The open pit mining is mainly Baiyun Obo iron - salt , rare earth mines and some sand mines, leaching rare earth mines and rare, rare earth weathering shells and other mines. Underground mini

Cyanide slurry was filtered, washed with output solution containing gold (commonly known as expensive solution or mother liquor), which still contains a small amount of precipitated sludge is difficult and suspended particles, typically zinc substitution should be clarified and the recovery of gold

Gold is present in the cyanide solution as a gold cyanide complex Au(CN) 2 - . During the electrowinning process, gold and silver are precipitated at the cathode. At the same time, hydrogen is precipitated due to the reduction of water, oxygen is evolved at the anode, and cyanide is generated. Oxid