1. Safety management organization and safety management personnel Metal and nonmetal mines should be in accordance with the "safe scales Law", to set the security agencies and production management with safety management personnel. The safety production management organization refers to
    Recently, the People's Bank of China and the General Administration of Customs issued "Interim Measures for the Administration of Import of silver," the implementation with effect from January 1, 2000. The Interim Measures stipulates that the state restricts the import
A Basic principle a Main reaction and thermodynamic conditions The leaching reaction of scheelite scheelite sodium carbonate is: CaW0 4 (s)+Na 2 C0 3 (aq) ==== Na 2 W0 4 (aq)+CaC0 3 (s) (1) According to the measurement, the concentration equilibrium constant Kc and the activity equilibrium const
The so-called cost control is that in the whole process of mineral processing product formation, the deviation of product cost and various expenses are controlled within the scope of cost planning and cost standardization through the supervision, prevention and timely correction of product cost for
The use of a low solubility product of trivalent cobalt hydroxide to oxidatively hydrolyze and precipitate cobalt is a common method for producing nickel and cobalt in a separation solution. In the acidic solution, Co 2 + is preferentially oxidized than Ni 2 + , and the solubility product of Co(OH
There are many types of non-metallic minerals associated with gold ore, and non-metallic minerals that have an effect on the cyanide leaching of gold are: 1. Arsenic minerals In gold ore, arsenic-containing minerals are extremely harmful to the cyanidation process. Sometimes the cyanidation proces
0( 6 ): 10 to 16 31. Â Â Â Â To Wei and Zhong Kang, Wang Jun application of biotechnology in mineral engineering [J], foreign metal ore beneficiation, 1996 (1): 1-11 32. Â Â Â Â Yang Feng, Xu Xiangbin et al . Experimental study on bacterial oxidation of carbon-rich arsenic -typ
The mine is a gently inclined (10-20°) deposit. The riverbed pillar test mining area is in stages 6-9. The ore bodies are found in the strontium limestone, mainly the II and III deposits. The 8th to 9th stage ore body has a thickness of 4 to 25 m and an average thickness of 12 m. The direct roof
1. All equipment should be developed according to the actual situation after operation. 2. The overhaul plan includes overhaul, medium repair, minor repair, and equipment overhaul plan. Each workshop will make the next year's overhaul plan before December 20th of each workshop. The medium repa
On February 28, China International Marine Containers (Group) Co., Ltd. (hereinafter referred to as CIMC) and Zhuhai Gree Electric Appliance Co., Ltd. (hereinafter referred to as Gree) and Zhuhai Yinlong New Energy Co., Ltd. (hereinafter referred to as Zhuhai Yinlong) signed Strategic cooperation f
On March 3, 2017, China Truck Network was informed that the 50 compression-type garbage trucks modified by the company's Jianghuai Jun Bell were successfully delivered to end customers in Lanzhou, Gansu, for rural garbage collection and disposal. Jianghuai Junling compressed garbage truc
During the Spring Festival this year, Xi'an North Railway Station passengers through the face recognition system with the help of staff ticket check. Focus on biometrics: From the lab to the public Vendor demonstrates smartphone with iris recognition. Image from the web How old is his or he