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chlorination kinetics of aluminum bearing minerals

Chlorination kinetics of aluminum bearing minerals ...

01-06-1975  Chlorination kinetics of aluminum bearing minerals A. Landsberg 1 Metallurgical Transactions B volume 6 , Article number: 207 ( 1975 ) Cite this article

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Chlorination Kinetics Of Aluminum Bearing

Chlorination Kinetics Of Aluminum Bearing Minerals . Author: A. Landsberg, U.S. Bureau of Mines Document Download Product code: ZMETB0602P207

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Chlorination kinetics of aluminum bearing minerals

01-06-1975  The reactivity of pure alumina was found to be representative of bauxite chlorination. Kaolin chlorinated in a complex manner at a much slower rate. Gamma alumina, which can be prepared, from bauxite or clay, offers the best potential for chlorination.

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Chlorination kinetics of aluminum bearing minerals ...

14-02-2021  @article{Landsberg1975ChlorinationKO, title={Chlorination kinetics of aluminum bearing minerals}, author={A. Landsberg}, journal={Metallurgical Transactions B}, year ...

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NIOSHTIC-2 Publications Search - 10009600 -

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 bauxite chlorination. Kaolin chlorinated in a complex manner at a much slower rate.

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Kinetics of aluminum oxide chlorination. 1. The

This article is cited by 1 publications. M.W. Ojeda, J.B. Rivarola, O.D. Quiroga. Study on chlorination of molybdenum trioxide mixed with carbon black.

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Metal Extraction Through Chlorine Metallurgy:

Abstract. Chlorination has been an important process step in the extraction of many nonferrous metals from their ores and concentrates. Some of the important chlorinating agents are gaseous chlorine, hydrochloric acid, ferric chloride, carbon tetrachloride and some alkali or alkaline chlorides like, NaCl, CaCl 2 and NH 4 C1. Because of their high reactivity at a moderate temperature ...

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Carbochlorination of metal oxides with phosgene,

Kinetics of the carbochlorination with phosgene of an alumina‐silica material are reported for a temperature range of 723 to 1,023 K and a phosgene partial pressure range of 4 to 90 kPa. The oxides react in a constant ratio over most of the conversion range and the grain model accurately predicts conversion as a function of time.

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Dissolution Rates for Quartz, Aluminum-Bearing

When soluble aluminum or aluminum-bearing minerals are present, the dissolution rate of quartz is significantly reduced. Adding soluble silica can have a similar affect an kaolinite dissolution rates as measured by production of aluminum and silicon. In congruent dissolution occurred when kaolinite solutions were shaken.

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Kinetic study on the chlorination of β-spodumene

10-04-2013  The chlorination of lithium bearing ores has been used through various chlorinating methods to selectively extract lithium as lithium chloride at elevated temperatures , , , . Taking in consideration this background information then, it is necessary to understand thoroughly the chlorination reaction implied in a given process of lithium recovery from lithium ores for reactor design and to set ...

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CARBOCHLORINATION OF PLAGIOCLASE. —

The carbochlorination behavior of other aluminum bearing minerals (gamma and alpha alumina and kaolin) is compared with plagioclase. Preliminary results of fluidized bed chlorination of plagioclase and alpha alumina indicate that this approach is not feasible.

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Kinetics of aluminum oxide chlorination. 1. The

This article is cited by 1 publications. M.W. Ojeda, J.B. Rivarola, O.D. Quiroga. Study on chlorination of molybdenum trioxide mixed with carbon black.

More

Carbochlorination of metal oxides with

Kinetics of the carbochlorination with phosgene of an alumina‐silica material are reported for a temperature range of 723 to 1,023 K and a phosgene partial pressure range of 4 to 90 kPa. The oxides react in a constant ratio over most of the conversion range and the grain model accurately predicts conversion as a function of time.

More

Metal Extraction Through Chlorine Metallurgy:

Abstract. Chlorination has been an important process step in the extraction of many nonferrous metals from their ores and concentrates. Some of the important chlorinating agents are gaseous chlorine, hydrochloric acid, ferric chloride, carbon tetrachloride and some alkali or alkaline chlorides like, NaCl, CaCl 2 and NH 4 C1. Because of their high reactivity at a moderate temperature ...

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Kinetic study of chlorination of niobium (V)

03-03-1999  Numerous papers can be found on the chlorination of pure oxides of aluminum, titanium, silicon, or ores and minerals containing them 1, 2, ... Chlorination kinetics of aluminum bearing minerals. Metall. Trans. B, 6B (1975), p. 207. View Record in Scopus Google Scholar. 6.

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US4565674A - Alumina chlorination - Google

US4565674A US06/579,026 US57902684A US4565674A US 4565674 A US4565674 A US 4565674A US 57902684 A US57902684 A US 57902684A US 4565674 A US4565674 A US 4565674A Authority US United States Prior art keywords catalyst alkaline earth mixtures reaction alumina Prior art date 1984-02-10 Legal status (The legal status is an assumption and is not a legal conclusion.

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(PDF) Surface Reactions of Chlorine With γ

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.

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Dissolution Rates for Quartz, Aluminum-Bearing

When soluble aluminum or aluminum-bearing minerals are present, the dissolution rate of quartz is significantly reduced. Adding soluble silica can have a similar affect an kaolinite dissolution rates as measured by production of aluminum and silicon. In congruent dissolution occurred when kaolinite solutions were shaken.

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An overview study of chlorination reactions

The kinetics of these chlorination reactions was studied by thermogravimetric analysis. The effects of total gas flow rate, temperature, individual reactant partial pressures, etc., on the chlorination reaction rate were investigated. Besides, experiments were also conducted in tubular furnaces.

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Alumina chlorination - Washington Research

TECHNICAL FIELD. The present invention relates to a catalytic process for preparing aluminum chloride (AlCl 3) by the chlorination of alumina (Al 2 O 3).. BACKGROUND ART. Although aluminum is the third most abundant element in the earth's crust, it is never found in nature as an element, but rather occurs in more than 250 different minerals.

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Kinetics of aluminum oxide chlorination. 1. The

Kinetics of aluminum oxide chlorination. 1. The mechanism and mathematical model. Istvan Szabo, Tibor Blickle, Aurel Ujhidy, and ; Robert Jelinko

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CARBOCHLORINATION OF PLAGIOCLASE. —

The carbochlorination behavior of other aluminum bearing minerals (gamma and alpha alumina and kaolin) is compared with plagioclase. Preliminary results of fluidized bed chlorination of plagioclase and alpha alumina indicate that this approach is not feasible.

More

Metal Extraction Through Chlorine Metallurgy:

Chlorination has been an important process step in the extraction of many nonferrous metals from their ores and concentrates. Some of the important chlorinating agents are gaseous chlorine, hydrochloric acid, ferric chloride, carbon tetrachloride and some alkali or alkaline chlorides like, NaCl, CaCl 2

More

Kinetics of aluminum oxide chlorination. 2.

01-05-2002  Kinetics of aluminum oxide chlorination. 2. Experiments and evaluation of results. Istvan Szabo; Tibor Blickle; Aurel Ujhidy; Robert Jelinko

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US4565674A - Alumina chlorination - Google

238000005660 chlorination reactions Methods 0.000 title description 22; 239000003054 catalysts Substances 0.000 claims abstract description 60; 239000000203 mixtures Substances 0.000 claims abstract description 47; 238000006243 chemical reactions Methods 0.000 claims abstract description 43

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Process for purifying aluminum chloride -

A method for purifying with respect to iron, aluminum chloride produced via the chlorination of aluminum bearing ores or materials which also contain iron. The process comprising the steps of: 1. chlorinating the aluminum value containing material in a manner which produces a gaseous product containing both ferric chloride and aluminum chloride;

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The Chlorination of Alumina and Bauxite with

The kinetics of chlorination of alumina and bauxite with CO/CI2 mixtures were studied in the range 300-1100°C. The temperature of prior calcination is critical in determining the reaction rates. An optimum chlorination temperature in the range 600°C-750°C was demonstrated such that there is no increase in reaction rates with increasing temperature.

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Alumina chlorination - Washington Research

The present invention relates to a catalytic process for preparing aluminum chloride (AlCl 3) by the chlorination of alumina (Al 2 O 3). BACKGROUND ART. Although aluminum is the third most abundant element in the earth's crust, it is never found in nature as an element, but rather occurs in more than 250 different minerals.

More

An overview study of chlorination reactions

The kinetics of these chlorination reactions was studied by thermogravimetric analysis. The effects of total gas flow rate, temperature, individual reactant partial pressures, etc., on the chlorination reaction rate were investigated. Besides, experiments were also conducted in tubular furnaces.

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Eric ALLAIN PhD Materials Science

Eric Allain. The kinetics of oxychlorination of MgO by Cl2 + O2 were studied in the temperature range from 850 C to 1025 C, using thermogravimetric analysis (TGA). The effects of Cl2/O2 ratio, gas ...

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The Chlorination of Alumina and Bauxite with

The kinetics of chlorination of alumina and bauxite with CO/CI2 mixtures were studied in the range 300-1100°C. The temperature of prior calcination is critical in determining the reaction rates. An optimum chlorination temperature in the range 600°C-750°C was demonstrated such that there is no increase in reaction rates with increasing temperature.

More

An overview study of chlorination reactions

The kinetics of these chlorination reactions was studied by thermogravimetric analysis. The effects of total gas flow rate, temperature, individual reactant partial pressures, etc., on the chlorination reaction rate were investigated. Besides, experiments were also conducted in tubular furnaces.

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WO1984000534A1 - Aluminum production via the

Discuss; JGDITNMASUZKPW-UHFFFAOYSA-K aluminium trichloride hexahydrate Chemical compound data:image/svg+xml;base64 ...

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MATERIALS PROCESSING FUNDAMENTALS: III

The kinetics of chlorination of titanium-bearing raw materials has been investigated. For comparison purposes pellets of controlled macro-porosity, made of analytical grade TiO2 and anatase concentrate (Brazil), have been exposed to different combinations of gas composition - co, CO2, Cl2 , gas flowrate and temperature.

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Kinetics of oxychlorination of chromite Part I. Effect of ...

Chlorination is an important step for the recovery of several metals such as Ti, Zr, Hf, Nb, Ta, rare-earth elements, etc. from their bearing materials. An overview concerning the applications and potential uses of chlorination methods in metallurgy of these metals was detailed by Korshunov[1].

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Kinetic study on the chlorination of β-spodumene for ...

Kinetics Extraction Lithium-Spodumene a b s t r a c t In this paper, the kinetics chlorination of -spodumene for the extraction of lithium has been studied using gaseous chlorine as chlorinating agent. The effect of chlorine flow rate, temperature, mass of the sample,andpartialpressureofCl wasinvestigated ...

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Clay Dissolution Kinetics in Relation to Alkaline

Clay dissolution kinetics were next studied with kaolinite. ... Dissolution Rates for Quartz, Aluminum-Bearing Minerals, and Their Mixtures in Sodium and Potassium Hydroxide. 87OCS. A Numerical Model for Predicting Alkali Slug Migration in Chemical Processes. 92EOR.

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I. PRINCIPLES OF EXTRACTIVE METALLURGY

Mineral Processing and Nonferrous Extractive Metallurgy June 30 - July 5, 2008 Rakesh Kumar National Metallurgical Laboratory Jamshedpur - 831 007 Resources for metals Natural Resources Gold is found in native state Aggregates of minerals (or ores) — mostly oxides and sulphides, example Al, Fe (oxide ores), Cu, Pb, Zn, Ni etc (sulphide ores).

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Minerals/Metals - Wikiversity

Main articles: Minerals/Transuranics, Transuranic minerals, and Transuranics "Based on the observation of the long-lived isotopes of roentgenium, 261 Rg and 265 Rg (Z = 111, t 1/2 ≥ 10 8 y) in natural Au, an experiment was performed to enrich Rg in 99.999% Au. 16 mg of Au were heated in vacuum for two weeks at a temperature of 1127°C (63°C above the melting point of Au).

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Utilization of gold-bearing and iron-rich pyrite

Nov. 2017. Article Contents. Turn off MathJax

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