Carbochlorination of Aluminum from Non-Bauxite Sources
Research on recovering aluminum from non-bauxite sources in Minnesota was initiated due to an interest in total resource utilization by way of by-product recovery of the …
Carbochlorination of Aluminum from Non-Bauxite Sources
It appears that the requirement of close physical contact posed difficulties in the chlorination of plagioclase. Fluidized-bed reactors have been reported to work very well, however, for the D D D D - Table II: Comparison of the Chlorination Behavior of Several Aluminum Bearing Minerals Theoretical Maximum % Weight Loss,.
Kinetics of extracting valuable components from Ti-bearing …
1 Introduction. Vanadium-titanium magnetite in the West Panzhi region produces an industrial solid waste, Ti-bearing blast furnace slag (TBFS), in the process of ironmaking, and the mass fraction of TiO 2 in the TBFS ranges from 18% to 22% (Zhang et al., 2007).Currently, the main disposal method for TBFS is to place it in a slag disposal pit, which has the …
Carbochlorination of Aluminum from Non-Bauxite Sources
There has been increased interest in the United States in developing the technology to recover aluminum from non-bauxite sources stemming from a need to develop domestic aluminum sources.1, 2 Several domestic sources of aluminum have been defined by the U.S. Bureau of Mines;3 the types and approximate tonnages of these are listed in Table I. Patterson and …
Synergistic extraction and separation of valuable elements …
[26] VETCHINKINA T N, BALMAEV B G. Chlorination of alumina obtained from nepheline concentrate processing and comparative assessment of the complete aluminum production cycle [J]. Inorganic Materials: Applied Research, 2019, 10: 1249âˆ'1253. [27] LANDSBERG A. Chlorination kinetics of aluminum bearing minerals [J].
Kinetic study of chlorination of niobium (V) oxide with chlorine …
Extraction of metal from metal oxides resided in ores or minerals by chloride process can be described briefly as follows: in the presence of a reductant, solid metal oxide reacts with a gaseous chlorinating agent to form metal chlorides and the oxide of the reductant. ... Chlorination kinetics of aluminum bearing minerals. Metall. Trans. B ...
Surface Reactions of Chlorine With γ-Alumina
The reaction of chlorine with γ-alumina was studied in the temperature range 300–1070 K by thermogravimetry and also by pulse and volumetric adsorption methods.
Kinetic study on the chlorination of β-spodumene for
The experimental data of the mineral dissolution in HF medium were analyzed with the Modelado software developed by Quiroga (2002). This software was designed for the kinetic treatment of ...
Chlorination kinetics of aluminum bearing minerals
The chlorination of domestic low-grade bauxite and kaolin clay was studied to determine the potential of these materials as sources of aluminum chloride for the chlorination/electrowinning route to aluminum metal. The reactivity of pure alumina was found to be representative of …
Co-extraction of valuable metals and kinetics analysis in chlorination …
To efficiently co-extract Ni and Cu from low-grade nickel-copper sulfide ore, chlorination roasting with NH 4 Cl followed by a water leaching process was investigated. The results show that 98.4% Ni and 98.5% Cu can be synchronously extracted when the ore particle size is 75-80 μm, the roasting time is 2 h, the mass ratio of NH 4 Cl to ore is 1.6:1 and the …
Chlorination Roasting of Li-Bearing Minerals and Slags: …
Lithium was recovered from both Li-bearing minerals (kunzite, hiddenite, and lepidolite) and Li-bearing slags, using a chlorination roasting process at 1100 °C under an argon atmosphere.
Kinetics of leaching refractory gold ores by ultrasonic …
The resources of refractory gold ores are abundant, and their effective treatment can bring good economic benefits. This paper investigated the kinetics of leaching gold from refractory gold ores by ultrasonic-assisted electro-chlorination. The effects of ultrasound time ratio, initial hydrochloric acid concentration and leaching temperature on the kinetic parameters were …
Kinetic study on the chlorination of β-spodumene for …
Extraction of metals from metals oxides resided in ores or minerals by chlorination has proved to be effective principally because of the high reactivity and strong affinity of chlorine towards metals oxides and silicates and because the production of water soluble chlorides [2], [3], [4], [5].The chlorination of lithium bearing ores has been used through various chlorinating …
Sci-Hub | Chlorination kinetics of aluminum bearing minerals
Chlorination kinetics of aluminum bearing minerals. Metallurgical Transactions B, 6(2), 207–214. doi:10.1007/bf02913561
Leaching kinetics fitting curve of aluminum ion.
The second potential industrial application strategy is to modify the current Bayer process, with critical measures involving the enhancement digestion of inert aluminum-bearing minerals ...
(PDF) Study of the Extraction Kinetics of Lithium by Leaching …
Barbosa et al. studied the kinetics of β-spodumene chlorination, and found that the reaction with chlorine begins in preferential sites of the mineral surface. They suggest that the defects contained in the crystal structure of the mineral may account for the formation of these preferential sites [16]. 3.4.1.
Chlorination kinetics of fluorine-fixed rare earth concentrate
Two potential mechanisms were proposed to explain the enhanced recovery: (1) decomposition of difficult-to-dissolve REE-bearing minerals into soluble forms; and (2) liberation of REE-bearing ...
Chlorination Kinetics Of Aluminum Bearing Minerals
In this paper, the kinetics chlorination of β-spodumene for the extraction of lithium has been studied using gaseous chlorine as chlorinating agent. ... Chlorination kinetics of aluminum bearing minerals. Metall. Trans. B, 6 (2) (1975), pp. 207-214. View in Scopus Google Scholar [4]
Sci-Hub | Chlorination kinetics of aluminum bearing minerals
Landsberg, A. (1975). Chlorination kinetics of aluminum bearing minerals. Metallurgical Transactions B, 6(2), 207–214. doi:10.1007/bf02913561
(PDF) Kinetics of leaching: a review
Kinetics, as a fundamental requirement of nearly all industrial activities and engineering researches, plays a great role in leaching processes.
Kinetics of the aluminum-chlorine reaction
The solids studied in this article include chemical pure oxides and sulfides as well as their natural bearing materials. The chlorinating agents employed are gaseous mixtures of Cl 2 +N 2 (chlorination), Cl 2 +O 2 (oxychlorination), and Cl 2 +CO …
Synergistic extraction and separation of valuable elements …
The aluminum and silicon in the mullite phase (Al6Si2O13) underwent chlorination reactions, resulting in the formation of AlCl3 and SiCl4 and the mullite mesophase …
(PDF) Competency of chlorination roasting coupled water …
Korean J. Chem. Eng., 36(12), 2060-2073 (2019) DOI: 10.1007/s11814-019-0393-9 pISSN: 0256-1115 eISSN: 1975-7220 INVITED REVIEW PAPER INVITED REVIEW PAPER Competency of chlorination roasting coupled water leaching process for potash recovery from K-feldspar: Mechanism and kinetics aspects Sandeep Kumar Jena*,**,†, Nilima Dash*, Akshaya Kumar …
Kinetics of chlorination and carbochlorination of pure …
Kinetics of chlorination and carbochlorination of pure Nb 2 O 5 and Ta 2 O 5 were studied by thermogra-vimetric analysis between 385 7C and 1000 7C using Cl 2-N 2 and Cl 2 ... Their main bearing minerals are pyrochlore, mi-crolite, tantalite, columbite, columbo-tantalite, etc. These minerals are often associated with cassiterite (SnO
The chlorination kinetics of zirconium dioxide in the …
The kinetics of the chlorination of compacted spherical pellets of zirconium dioxide and carbon were studied over a particle temperature range of 1400 to 1950 K. A plasma of pure chlorine generated by an induction torch provided both the high-enthalpy field and the reacting gas. The influence on the rate of conversion of temperature, chlorine concentration and carbon content …
Kinetic study on the chlorination of β-spodumene for …
Lithium is a comparatively rare element, although it is found in many rocks and some brines, but always in very low concentrations. The most abundant of the lithium minerals is spodumene (LiAlSi 2 O 6), a lithium pyroxene containing up to 3.73% Li (8.03% Li 2 O). However, the worldwide commercial extraction of lithium is carried out through brines at present, …
Co-Extraction of Aluminum and Silicon and Kinetics …
This study focused on the behavior of aluminum and silicon during the carbochlorination process of low-grade bauxite. The impact of various process parameters on the chlorination efficiency was investigated, and the chlorination mechanism and kinetics of aluminum and silicon chlorination in bauxite were analyzed and discussed.
An overview study of chlorination reactions applied to the …
This paper summarizes laboratory experimentation of chlorination processes developed for the extraction of tantalum and niobium from their bearing materials, the …
Carbochlorination of Aluminum from Non-Bauxite Sources
It appears that the requirement of close physical contact posed difficulties in the chlorination of plagioclase. Fluidized-bed reactors have been reported to work very well, however, for the Table II: Comparison of the Chlorination Behavior of Several Aluminum Bearing Minerals Theoretical Maximum % Weight Loss,.
Simultaneous Extraction of Gold and Vanadium From …
To realize the efficient comprehensive utilization of refractory gold ore resources and environmental and economic gold extraction methods, this study investigated the optimal chlorine source for the sustained recovery of gold and vanadium from carbonaceous refractory gold ore by chlorination heat treatment. During the chlorination roasting process, the results …