Low pollution large-scale high-efficiency stone coal vanadium extraction technology
Technology investment analysis: 1. Project introduction Stone coal mine belonging to the low-grade vanadium resources, except I still rare overseas, rest of the world in the use of industrial exploitation. China's stone coal reserves are extremely rich. From the end of the 1980s, we began to study the process of extracting vanadium from stone coal. At present, the total recovery rate of V2O5 is formed by using stone coal sulphide roasting, water + ACID leaching, ion exchange enrichment, ammonium salt precipitation vanadium and other processes. Up to 70.7%, 1tV2O5 production cost is 38,200 yuan, with small environmental pollution, is conducive to the comprehensive recovery of other associated elements, and has opened up a new technical approach for China's stone coal vanadium extraction process. At present, the technology has formed a series of technologies from experimental research to engineering design and on-site production commissioning and operation training. 2. Technical indicators and levels (1) The main technical and economic indicators are as follows: Stone coal V2O5 grade 0.8~1.2%; V2O5 leaching rate 75~80%; precipitation vanadium rate about 99%; pyrolysis V2O5 yield about 99%; V2O5 total yield about 70%; refined vanadium product purity ≥99%; The consumption of vanadium coal is about 160t; the production cost of tons of products is 4 to 50,000 yuan. (2), technical advantages and innovation The process is reasonable and perfect; the production scale is large; low pollution; production of waste gas, waste water and partial solid waste recycling. Prospects for the application of technology: Vanadium in the form of vanadium iron, vanadium and metal vanadium compound widely used in metallurgy, aerospace, chemical and other industrial sectors. Vanadium resource reserves are mainly symbiotic in vanadium- titanium magnetite and stone coal mines. Benefit Analysis: Investment and benefit analysis The economic benefit of the 800t/a V2O5 extraction plant is analyzed: total investment: about 50 million yuan (including environmental protection investment), the unit finished product cost is 50,000 yuan, and the product sales price is 85,000 yuan/ton (current market price 9~) 150,000 yuan / ton), the profit per ton is 35,000 yuan, the annual profit before tax is about 28 million yuan, and the annual total output value is 68 million yuan. Factory condition recommendations: no Remarks: Cooperation method and transfer amount Cooperation means: technical service, engineering design or general contract. Cost interview. Sulphur Black is as Sulphur Black 1 Sulphur Dye,flashing black flakes or particles,CAS1326-82-5,C6H4N2O5.Have high and full strength. Mainly used for denim cotton and cotton fiber blended fabric dyeing, also used for dyeing cambric, viscose and vinylon. sulphur black,Sulphur Black BR200%,dye sulphur black HENAN JINHE INDUSTRY CO.,LTD , https://www.hnchromiumoxidegreen.com
The product must be stored in shade,dry & well-ventilated warehouse.Avoid to be contacted with oxidizing chemicals and combustible organic substances.Keep it away from direct sunlight,heat,sparks and open flames.Carefully handle the product and avoid damaging the package.