CS Series Cone Crusher
CS cone crusher is a kind of high efficiency spring cone crusher, which integrate optimization.
We are experienced in mining industry.
SKD is quite experienced in construction, milling and mining industry. Requirements like customized design, advanced equipments and faultless service are available.
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Read More >>HPT Series Cone Crusher
HPT cone crusher introduced the Germany technology, not only improves the crushing efficiency.
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Read More >>PE Series Jaw Crusher
PE Series Jaw Crusher can be used to crush various mineral stones and bulk materials to medium size.
Read More >>Crushing Equipment
From large primary jaws and gyratories to cones and VSI for tertiary and quaternary finishing, SKD has the right crusher and crusher parts to meet your material reduction requirements.We win the trust and respect from our worlwide customers.
Read More >>Grinding Equipment
Grinding is the required process when size reduction of below 5-20 mm is needed. Grinding is a powdering or pulverizing process of many kinds of minerals ( Barite, Calcite, Limestone, Quartz, Gypsum, etc ).
Read More >>Mobile Crushing Plant
SKD explores and develops this series mobile stone crushing station( portable crusher ),which is the crushing equipments for rocks and construction waste, and expands the conception of primary and secondary crushing operation.
Read More >>Auxiliary Facilities
Auxiliary facilities are indispensable in aggregate production lines, SKD attaches great importance to the development of these facilities including feeder, screen and sand washer. Until now, TSW series and BWZ series vibrating feeder and XSD series sand washer successively.
Successful Case
According to our experience, we list some typical solutions for your reference.
As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals. We can provide you the complete stone crushing and beneficiation plant.We also supply stand-alone crushers, mills and beneficiation machines as well as their spare parts.
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Read More >>Copper ore crushing line
The client is a mining owner in Turkey, already having an iron ore production line. This investment is a large copper production line, and finally they chose to cooperate with our company in ore crushing section .
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Read More >>1000TPH Limestone Sand-making Line
As the market demand for aggregate increases continuously, the customer hoped that SKD can customize an efficient, intelligent and environmental crushing production line to produce high-quality sand .
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Read More >>350TPH Basalt Crushing Line
Basalt crushing is never an easy thing because it is characterized by rigidity, high strength and high abrasive resistance. So customers are often confronted with various problems during operation .
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Read More >>90-100TPH Limestone Crushing Line
Under the premise of meeting customer’s demand on quality of products, environment protection and flexible production, SKD equipped the customer with K Series Combine-typed Mobile Crushing Station .
Comments of Extracting Vanadium From Stone
The technology of extracting vanadium from stone coal in
Sep 01, 2011· 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.The technology of extracting vanadium from stone coal in,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.
CN101476036B Method for extracting vanadium by stone
The invention provides a method of leaching vanadium by adding sulfuric acid to stone coal, wet-stacking, oxidizing and converting under the normal temperature and pressure.Extracting vanadium from stone-coal by oxygen pressure,May 01, 2010· Vanadium extraction from stone-coal was investigated by oxygen pressure acid leaching and solvent extraction. The mineralogy of the stone-coal from Tongren City of Guizhou Province, China, was investigated by various determination methods.
Vanadium Transitions during Roasting-Leaching Process of
vanadium precipitation, and calcination [6–8]. 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 extraction, and vanadium precipitation, the vanadium recoveries are more than 97% [9,10].Extraction of vanadium from stone coal by roasting in a,In order to improve leaching efficiency of vanadium pentoxide (V2O5) from stone coal and to reduce its connected environmental pollution, this article investigated the oxidizing roasting of stone coal in a laboratory fluidized bed reactor to optimize the roasting method and conditions.
CN101476036B Method for extracting vanadium by stone
The invention provides a method of leaching vanadium by adding sulfuric acid to stone coal, wet-stacking, oxidizing and converting under the normal temperature and pressure. The method comprses the following steps: (1) dry-grinding bone coal into bone coal powder with a diameter of 1-5mm; (2) adding sulfuric acid and water with a mass ratio of bone coal powder :sulfuric acid :water of 100:10Mechanism of Enhancing Extraction of Vanadium from Stone,Therefore, extracting vanadium from stone coal is an important way to obtain vanadium pentoxide. In general, most of the vanadium in stone coal mainly exists as trivalent vanadium (V(III)) which substitutes for trivalent aluminum (Al(III)) in the octahedral crystal lattice of the mica minerals as an isomorphism [ 6,7,8 ].
CN101275187A Process for extracting vanadium by stone
The invention discloses a process for using stone-like coal wet method to extract vanadium, comprising the steps of: crushing and ball-milling the stone-like coal to sieve, mix (adding additive), pickle, exchange the ions, depositing the vanadium and calcine to produce the product of vanadic oxide, the comprehensive recovery rate is larger than 80%; compared with current process, the leachingA new process of extracting vanadium from stone coal,Jul 28, 2010· A new process of extracting vanadium from the stone coal vanadium ore in Fangshankou, Dunhuang area of Gansu Province, China was introduced. Various leaching experiments were carried out, and the results show that the vanadium ore in Fangshankou is difficult to process due to its high consumption of acid and the high leaching rate of impurities. However, the leaching rate
Vanadium Transitions during Roasting-Leaching Process of
vanadium precipitation, and calcination [6–8]. 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 extraction, and vanadium precipitation, the vanadium recoveries are more than 97% [9,10].Synergistic solvent extraction of vanadium from leaching,Jun 30, 2017· The blank roasting-leaching technology was employed to extract vanadium from stone coal,. The leaching solution was obtained from stone coal roasted at 850 °C for 60 min, which was followed by leaching with 20% (v/v) H 2 SO 4 and 5% (wt) CaF 2
CN101760651A Process for extracting vanadium by acid
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 after the aluminum removal to remove ironKinetics of Extracting Vanadium from Stonecoal by Alkali,Z.G. Deng et al., “Extracting Vanadium from Stone-Coal by Oxygen Pressure Acid Leaching and Solvent Extraction,” Transactions of Nonferrous Metals Society of China, 20(2010), s118–s122. CrossRef Google Scholar
NEW PROCESS OF EXTRACTING VANADIUM FROM
Vanadium, as one of the important rare elements, has been widely used in industrial production. The raw material for industrial production of vanadium consists of vanadium-titanium magnetite, oil ash, waste vanadium catalyst, bauxite and stone coal. In addition, 75% to 85% vanadium production was extracted from vanadium-titaniumEffect of vanadium occurrence state on the choice of,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
(PDF) Extracting Vanadium from Stone Coal by a Cyclic
In order to achieve an efficient and economical approach on extracting vanadium from stone coal, a cyclic alkaline leaching method was studied in this work. The effects of operating parametersExtraction of vanadium from stone coal by modified salt,Dec 02, 2011· Extracting vanadium from stone-coal by oxygen 3.6 Effect of leaching temperature on vanadium pressure acid leaching and solvent extraction [J]. Transactions of leaching percent Nonferrous Metals Society of China, 2010, 20(s1): S118−S122. Figure 6 shows the relationship of the leaching [2] XU Guo-zhen, CHEN Bo-zhen, LI Jing, GUO Xiang-gui, YI
Study on Extraction of Vanadium from High Acid Leach
A new extractant [email protected] was used to directly extract vanadium from high acid leach solution of stone coal. The effects of acidity and Eh of feed, time, phase ratio and temperature on the extraction of vanadium were investigated. The extraction distribution isotherm was also obtained. The results showed that the extraction of vanadium reached 98% in single stage with A/O ratio of 1:1 at 35~45Extraction of vanadium from stone coal by modified salt,In order to reduce the pollution of Cl2 and HCl released during extracting vanadium from stone coal by sodium chloride roasting, a modified salt-roasting process was proposed by adding calcined lime in roasting process followed by H2SO4 leaching. The effects of parameters including roasting temperature, roasting time, addition mass ratio of NaCl, calcined lime upon leaching rate of vanadium
Mechanism of Enhancing Extraction of Vanadium from Stone
Therefore, extracting vanadium from stone coal is an important way to obtain vanadium pentoxide. In general, most of the vanadium in stone coal mainly exists as trivalent vanadium (V(III)) which substitutes for trivalent aluminum (Al(III)) in the EFFICIENT EXTRACTING VANADIUM FROM STONE COAL ,Key words: vanadium, extraction, stone coal, biomass, sodium roasting INTRODUCTION Stone coal is an important vanadium resource, ac-counting for more than 87 % of Chinese vanadium stor-age [1]. Therefore, much attentions were recently fo-cused on efficient extracting vanadium from stone coal [2]. Vanadium generally was known in the state of V
Extraction of vanadium from stone coal by modified salt
In order to reduce the pollution of Cl2 and HCl released during extracting vanadium from stone coal by sodium chloride roasting, a modified salt-roasting process was proposed by adding calcined lime in roasting process followed by H2SO4 leaching. The effects of parameters including roasting temperature, roasting time, addition mass ratio of NaCl, calcined lime upon leaching rate of vanadiumVanadium Transitions during Roasting-Leaching Process of,vanadium precipitation, and calcination [6–8]. 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 extraction, and vanadium precipitation, the vanadium recoveries are more than 97% [9,10].
Review of vanadium extraction from stone coal by roasting
The development of technology on vanadium extraction from stone coal by adding sodium chloride and calcium oxide was reviewed. Stone coal with large amount of silica and low in calcium wasKinetics of Extracting Vanadium from Stonecoal by Alkali,Z.G. Deng et al., “Extracting Vanadium from Stone-Coal by Oxygen Pressure Acid Leaching and Solvent Extraction,” Transactions of Nonferrous Metals Society of China, 20(2010), s118–s122. CrossRef Google Scholar
Study on Extraction of Vanadium from High Acid Leach
A new extractant [email protected] was used to directly extract vanadium from high acid leach solution of stone coal. The effects of acidity and Eh of feed, time, phase ratio and temperature on the extraction of vanadium were investigated. The extraction distribution isotherm was also obtained. The results showed that the extraction of vanadium reached 98% in single stage with A/O ratio of 1:1 at 35~45CN101760651A Process for extracting vanadium by acid,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 after the aluminum removal to remove iron
Recovery of vanadium from alkaline leaching solution from
vanadium recovery was 90.9%. KEYWORDS: vanadium pentoxide, purification, extraction INTRODUCTION The classical technology for extracting vanadium from stone coal has two main problems, low vanadium recovery (<50%) and the production of environmen-tal pollutants1,2, and is therefore being eliminated gradually. In recent years, researchers haveStudy on Extracting Vanadium from Coal Vanadium Ore,Extraction of Vanadium from Stone Coal by Roasting in The Present of Sodium Salts[J]. Mining And Metallurgical Engineering, 1994, 14(2): 49-50. [4] Bing Zhiyong. Study on Extraction of V2O5 from Vanadium Ore by Roasting and Acid Leaching Process[J].
from Stone Coal by Roasting with MgO MDPI
medicine, vanadium redox batteries, and so on [1,2]. Stone coal is a particular vanadium ore resource in China, and its gross reserves of vanadium account for more than 87% of the domestic reserves of vanadium [3–5]. Therefore, extracting vanadium from stone coal is an important way to obtain vanadium pentoxide.A new process of extracting vanadium from stone coal,A new process of extracting vanadium from the stone coal vanadium ore in Fangshankou, Dunhuang area of Gansu Province, China was introduced. Various leaching experiments were carried out, and the
Extracting Vanadium from Stone Coal by a Cyclic Alkaline
In order to achieve an efficient and economical approach on extracting vanadium from stone coal, a cyclic alkaline leaching method was studied in this work. The effects of operating parameters, including the NaOH concentration, temperature, reaction time, and liquid–solid ratio, on vanadium leaching efficiency were investigated.Pre-Concentration of Vanadium from Stone Coal by Gravity,In China, stone coal is a vanadium resource with huge reserves. The gross reserve of vanadium in terms of V 2 O 5 in stone coal is 118 million tons, which accounts for more than 87% of the domestic reserve of vanadium [1,2].Therefore, many techniques of vanadium extraction from stone coal have been researched and developed by various researchers [3,4].
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