The invention provides a method for extracting vanadium from stone coal. The method comprises: performing grinding, screening, ball manufacturing, drying and other pretreatment on stone coal; feeding the obtained product into a furnace for blank roasting at the temperature below 300 DEG C; raising temperature to between 600 and 1,200 DEG …
The invention relates to a stone coal vanadium extracting and calcining technique. The technical proposal is as follows: the stone coal raw ore with a V2O5 grade ranging from 0.7 to 1.3 wt percent is grinded into 0 to 3 millimeters, after the decarburization, sodium chloride of 10 to 17 wt percent of the raw ore and Na2CO3 of 3 to 7 wt percent as well as FeVO3 …
PDF | On Jan 1, 2020, published Study on Extracting Vanadium from Stone Coal by Acid Leaching with Aid of Sodium Nitrate | Find, read and cite all the research you need on ResearchGate
The invention relates to a comprehensive treatment method of salt-contained waste water produced by extracting vanadium from stone coal. The invention adopts the technical scheme that: firstly pre-treating the salt-contained waste water until the following conditions are satisfied: iron ion (Fe<2+>) is less than 0.3mg/L, manganese ion (Mn<2+>) is less …
The critical role of vanadium in metallurgy and the increasing commercialization of vanadium redox flow batteries have contributed to a rise in market demand for vanadium, emphasizing the need to ensure the sustainability of vanadium production. Converter vanadium slag and stone coal, generated during the smelting …
Wang M.Y. et al., Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coal 113 and the chemical composition of stone coal was listed in Table 1. It is ...
The influence of roasting on the leaching rate and valence of vanadium was evaluated during vanadium extraction from stone coal. Vanadium in stone coal is hard to be leached and the leaching rate ...
Vanadium, as a strategic metal, has been attractive for a variety of applications, including iron industry, catalysis, flow batteries.[1,2,3] It was reported that …
The technology of extracting vanadium from stone coal in China: History, current status and future prospects [J]. Hydrometallurgy, 2011, 109(1): 116âˆ'124. [3] HE Dong-sheng, FENG Qi-ming, ZHANG Guo-fang, OU Le-ming, LU Yi-ping. An environmentally-friendly technology of vanadium extraction from stone coal [J].
DOI: 10.1016/S1001-0521(08)60097-2 Corpus ID: 95710417; Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coal @article{Wang2008EffectOV, title={Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coal}, author={Mingyu Wang and Xiaoyan …
Additionally, the flotation process is complex and lengthy. Therefore, it is necessary to use hydrometallurgical extraction to develop new processes for vanadium extraction from stone coal (Habbache et al., 2009). However, the present technologies and equipment for extracting vanadium from stone coal are relatively laggard.
Hence, much attention has been paid to research on extracting vanadium from stone coal. The traditional high salt roasting-water leaching (HSRWL) technique is the earliest technique applied in vanadium extraction from stone coal. This technique was widely adopted by small-scale factories for extracting vanadium from stone coal, but …
Aimed at extracting vanadium from stone coal effectively and greenly, an innovative process for pre-concentration of vanadium from stone coal was designed …
Pre-concentration of vanadium is therefore attractive in order to reduce the cost of vanadium extraction from stone coal, and to facilitate utilization of resources below cut-off grade. Wu et al. (2008) attempted to use flotation method to pre-concentrate the vanadium. However, due to coating of carbonaceous mudstone on the surfaces of …
Therefore, aimed at extracting vanadium from stone coal efficiently and greenly, an innovative process to pre-concentrate vanadium is designed and verified as the first step. In this process, the environment-friendly Fe 2 O 3 was used as an additive. It captures vanadium, ...
The technology of extracting vanadium from stone coal in China: History, current status and future prospects[J]. Hydrometallurgy, 2011, 109(1/2):116-124. Google Scholar [6] . —[J]., 2015, 34(4):275-278.XING X Y. Low-temperature alkaline roasting of stone coal vanadium ...
The invention discloses a method of extracting vanadium from stone coal. The method comprises the following steps: 1) using sodium carbonate and sodium hydroxide mixed solution to soak stone coal calcined material to obtain lixivium; 2) adding hydrogen peroxide; 3) using organic composition 40-60% A + 10-30% B + 20-40% C to extract the …
Chemical precipitation, ion exchange and solvent extraction all can be used to extract vanadium from stone coal leach solutions. Due to the low extraction of …
Due to the poor vanadium recovery of mineral processing, the extraction of vanadium from stone coal is directly carried out by metallurgical processes. Salt process, acid process and alkali ...
Sulfuric acid leaching is a mature process in industry to recover vanadium from the above vanadium-bearing resources, especially in extracting vanadium from stone coal, which is an important vanadium-bearing resource in China (Li et al., 2010, Xue et al., 2016). A number of techniques have been reported to separate and concentrate …
Nowadays, carbonaceous vanadium-bearing stone coal (0.3 wt% to 1.0 wt% vanadium) is mainly used as a raw material for vanadium extraction [17, 26]. Unfortunately, high carbon content, low and dispersed vanadium grades of the carbonaceous vanadium-bearing stone coal make the extraction of vanadium difficult …
This technique was widely adopted by small-scale factories for extracting vanadium from stone coal, but much caustic gasses and ultra-high salinity wastewater are generated and the total vanadium ...
For the process of vanadium extraction from stone coal, the vanadium recovery by the roasting-leaching procedure is around 65–75%, while for other procedures, such as ion exchange, solvent …
The key point of extracting vanadium from stone coal is breaking the crystal structure of muscovite and oxidize vanadium from V(III) to V(Ⅳ) or V(Ⅴ) [11].Extracting vanadium from stone coal by conventional methods such as flotation [8], [12], [13], magnetic separation [14] and gravity separation [15], [16], [17], is extremely …
New extractant and an extractant system are attractive for liquid-liquid extraction. To improve the extraction efficiency and selectivity, the binary extractant system consisting of bis-2-ethylhexyl phosphoric acid (D2EHPA) and 2-ethylhexylphosphonic mono-2-ethylhexyl (PC88A) was explored to separate vanadium …
The invention provides a process for extracting vanadium by acid leaching of stone coal. The process mainly comprises the following steps of: removing aluminum from crystal aluminum sulfate ammonium vanadium obtained from acid leaching solution of stone coal, performing selective oxidation and adjustment of a pH value of the solution obtained …
The industrial test indicates that application of the resin process in the extraction of vanadium from stone coal is feasible. The loading of V on the resin can be reached 280 mg/mL wet resin with an overall recovery of 98.6% vanadium. Application of the process in industry is expected to make an important impact on the extraction of …
Study on Extracting Vanadium from Stone Coal by Acid Leaching with Aid of Sodium Nitrate
Besides, the ore containing vanadium in stone coal is always complicatedly combined with carbon, which further increases the difficulty for extracting vanadium form stone coal. China has started to extract vanadium from stone coal since 1960s, whose fundamental principle is oxidizing the acid- and water-insoluble V(III) to V(IV) and/or V(V ...
1. Introduction. Vanadium is a rare transition metal that is widely utilized in metallurgical processes and manufacturing industries. As the technology advances, the increasing global demand for vanadium will require more efficient means of mining and extracting vanadium from natural resources [1], [2], [3].Stone coal vanadium ore …
