Existing Techniques
Since September,2008. Hunan Juqiang Vanadium Chemical Co.,Ltd. is striving to seek a new type of techniques which produce high output, and is high efficient, less pollution and low cost. It first cooperate with a wet process vanadium techniques company and invested more than 10 million yuan. Due to the immature of techniques and technology, it didn’t succeed. In September,2010. it brought in Wet vanadium techniques and new extraction equipment developed by our company. It annual output then reached to 1 thousand tons of vanadium. The products confirm and beyond the GB3283-87 standard. Due to the advanced techniques, it realized the zero pollution of stone coal vanadium.
Technical conclusion
1.Ore must provide full analysis and phase analysis
2.Ore crushing, ore milling requires less than 5% moisture content; milling head size is not greater than -20;
3.Ore than 93% concentrated sulfuric acid with a mineral acid ratio of 1:25% at -27%, and blending additives, mixing until uniform; piles of ore to the yard to the aging process requirements (leaching solution PH value greater than 1);
4.After curing the powder to the mixing reactor to the leaching of solid-liquid ratio 1:0.8-1.0 mixing with water leaching;
5.Solid-liquid separation and rinse to clean and slag; carbon within the coal slag bricks; carbon-slag brick and other building materials can be used as filler, no waste emissions
6.Solution treatment is subject to reduction, the value of such technology transfer process; and extraction by-products (alum, etc.);
7.The process wastewater generated in the extraction process section, Shen V, adjust the value according to its wastewater treatment, sedimentation, filtration, recycling and reuse, no wastewater discharge;
8.All the techniques process is easy, controllable, high mechanical, high recycle rate, low cost and investment. It can realize automatic and enlarge techniques as will. It belong to environmental friendly techniques.