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Chlorination Kinetics Of Aluminum Bearing Minerals

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Chlorination kinetics of aluminum bearing minerals

Up to10%cash back· Jun 01, 1975· 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.

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Chlorination Kinetics Of Aluminum Bearing Minerals ASM

ASM International is the world's largest association of materials engineers and scientists. We are dedicated to informing, educating, and connecting the materials community to solve problems and stimulate innovation around the world.

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Chlorination kinetics of aluminum bearing minerals NASA/ADS

Jun 01, 1975· 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.

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NIOSHTIC-2 Publications Search 10009600 Chlorination

Chlorination Kinetics of Aluminum Bearing Minerals. Authors 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.

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chlorination kinetics of aluminum bearing minerals

Chlorination kinetics of aluminum bearing minerals 197561ensp;0183;ensp;Chlorination kinetics of aluminum bearing minerals A. Landsberg 1 Metallurgical Transactions B volume 6,Article number 207 ( 1975 ) Cite this articleChlorination kinetics of aluminum bearing minerals 197561ensp;0183;ensp;The reactivity of pure alumina was found to be representative of bauxite chlorination.

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Kinetic study on the chlorination of β-spodumene for

Apr 10, 2013· 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,,,. The Chlorination kinetics of aluminum bearing minerals.

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Kinetics of aluminum oxide chlorination. 1. The mechanism

Feb 01, 1991· 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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US4565674A Alumina chlorination Google Patents

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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Metal Extraction Through Chlorine Metallurgy: Mineral

Mar 26, 2008· 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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(PDF) 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. An exclusively surface reaction

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Kinetics of aluminum oxide chlorination. 1. The mechanism

Feb 01, 1991· 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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Prospects for Carbochlorination in Aluminum Recovery from

The kinetics of chlorination of alumina and bauxite with CO/Cl//2 mixtures were studied in the range 300-1100 degree C. The temperature of prior calcination is critical in determining the reaction

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Metal Extraction Through Chlorine Metallurgy: Mineral

Mar 26, 2008· 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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US4565674A Alumina chlorination Google Patents

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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WO1984000534A1 Aluminum production via the chlorination

An improved method of producing anhydrous aluminum chloride via aluminum chloride hexahydrate. In a preferred embodiment the method is incorporated into a process for producing aluminum from aluminous ores, and particularly from domestic ore sources comprising (1) acid leaching an aluminous ore to produce aluminum chloride hexahydrate (ACH); (2) calcining the ACH to a specific

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Kinetics of selective chlorination of pre-reduced

Aug 01, 2011· Kinetics of selective chlorination. During the selective chlorination, as described above, two stages of kinetic process were obviously observed for the chlorination of nickel and cobalt. And it could be contributed to two reasons: (a) the chlorination rate of metals (Eq. ) is much more than that of the oxides (Eq.

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The selective chlorination of nickel and copper from low

May 15, 2020· Anhydrous aluminum chloride (AlCl 3, AR) was used as the chlorination agent in the roasting process.High purity nitrogen gas (N 2, >99.999%) and oxygen gas (O 2, >99.9%) were used to make a mixed gas with different oxygen content in the roasting atmosphere.. 2.2. Procedure and methods. The experiment includes two parts, roasting process following by a water leaching process.

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A study into the hydrodynamic behaviour of heavy minerals

Keywords: fluidization, hydrodynamics, heavy minerals, circulating fluidized bed, pressure profiles, slip velocity, L-valve Abstract—To understand the hydrodynamic behaviour of titania-bearing solids undergoing chlorination in CFB reactor at 1000°C, tests were conducted in

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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]. The author described the theoretical aspects of

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POLYMETALLIC VEIN AND REPLACEMENT DEPOSITS

bearing distal ore. Most skarn ore is near the intrusion-sedimentary rock contact. Mineral characteristics Textures: Mineral grains are typically medium to coarse grained (0.5

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Alumina chlorination Washington Research Foundation

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 chlorination of Co and Co-10 At. Pct Pt alloy

He investigated the rates of chlorination of Fe (528 to 921 K), Ni (890 to 1249 K), and Sn (340 to 396 K) in C12-He and CI2-Ar gas mixtures.~ In these investigations the overall reaction products were gaseous (FeC13)2, NiC12, and SnC14, respectively.

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Groundwater Dissolved mineral sources and significance

Dissolved Mineral Sources and Significance. The chemical character of groundwater is influenced by the minerals and gases reacting with the water in its relatively slow passage through the rocks and sediments of the Earth’s crust. Many variables cause extensive variation in the quality of groundwater, even in local areas.

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Reaction characteristics and kinetics of gallium in

May 27, 2015· The mineral composition of copper tailings was examined, and the phase analysis of gallium was conducted for recovery of the rare scattered metal gallium from copper tailings. The reaction characteristics and kinetics of gallium in the chlorination roasting of copper tailings were investigated in a tube furnace apparatus under different conditions, including roasting temperature, quantity of

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A study into the hydrodynamic behaviour of heavy minerals

Keywords: fluidization, hydrodynamics, heavy minerals, circulating fluidized bed, pressure profiles, slip velocity, L-valve Abstract—To understand the hydrodynamic behaviour of titania-bearing solids undergoing chlorination in CFB reactor at 1000°C, tests were conducted in

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US4465659A Aluminum production via the chlorination of

An improved method of producing anhydrous aluminum chloride via aluminum chloride hexahydrate is provided. In a preferred embodiment the method is incorporated into a process for producing aluminum from aluminous ores, and particularly from domestic ore sources comprising (1) acid leaching an aluminous ore to produce aluminum chloride hexahydrate (ACH); (2) calcining the ACH to a specific

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Process for purifying aluminum chloride Reynolds Metals

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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POLYMETALLIC VEIN AND REPLACEMENT DEPOSITS

bearing distal ore. Most skarn ore is near the intrusion-sedimentary rock contact. Mineral characteristics Textures: Mineral grains are typically medium to coarse grained (0.5

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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]. The author described the theoretical aspects of

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Groundwater Dissolved mineral sources and significance

Dissolved Mineral Sources and Significance. The chemical character of groundwater is influenced by the minerals and gases reacting with the water in its relatively slow passage through the rocks and sediments of the Earth’s crust. Many variables cause extensive variation in the quality of groundwater, even in local areas.

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The mineralogy of Chlorine Mindat Mines, Minerals

Most widespread minerals containing Chlorine; This list of minerals containing Chlorine is built from the mindat locality database. This is based on the number of localities entered for mineral species and is therefore slanted towards minerals interesting to collectors with less coverage of common rock-forming-minerals so it does not give an undistorted distribution of Chlorine mineral

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40 Common Minerals and Their Uses

import reliant for its aluminum in 2012. Antimony A native element; antimony metal is extracted from stibnite ore and other minerals. Used as a hardening alloy for lead, especially storage batteries and cable sheaths; also used in bearing metal, type metal, solder, collapsible tubes and foil, sheet and pipes and semiconductor technology.

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The Alteration Mechanism of Copper-bearing Biotite and

Oct 21, 2019· The XRF, XRD, polarizing microscopy and SEM-EDS were used to study the alteration mechanism of copper-bearing biotite and the leachable property of copper-bearing minerals in Mulyashy Copper Mine

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A Method for Leaching or Dissolving Gold From Ores or

Aug 18, 2005· It is known that gold can be efficiently leached from gold- bearing ores using a mixture of hydrochloric acid, ferric chloride, and manganese dioxide.12 The chemical reaction involved during the

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Abiotic Reductive Dechlorination of Chlorinated Ethylenes

Abiotic reductive dechlorination of chlorinated ethylenes by the sulfate form of green rust (GRSO4) was examined in batch reactors. Dechlorination kinetics were described by a modified Langmuir−Hinshelwood model. The rate constant for reductive dechlorination of chlorinated ethylenes at reactive GRSO4 surfaces was in the range of 0.592 (±4.4%) to 1.59 (±6.3%) day-1. The specific

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"Fundamental Controls on the Reactivity of Aluminum Oxide

Chemical reactions at mineral-water interfaces are of great importance in many geological and environmental processes. Essential to many of these is adsorption because it directly controls contaminant fate and nutrient availability, promotes the nucleation and growth of minerals, initiates surface redox reactions, and plays a crucial role in carbon cycling and sequestration.

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Kinetic and Mechanism Studies of U(VI) Bearing Groundwater

Goethite (iron bearing oxyhydroxide mineral) is proportional to the [Fe] in the soil. Goethite is the most reactive mineral phase of SRS soil involved in U(VI) retention. U(VI) is strongly retained by goethite. Positive correlation between the iron concentration in the soil and U(VI) sorption.

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American Mineralogist Table of Contents

Jul 07, 2015· FLUIDS IN THE CRUST. 1600. The mobility of Nb in rutile-saturated NaCl- and NaF-bearing aqueous fluids from 1–6.5 GPa and 300–800°C. Elizabeth A. Tanis, Adam Simon, Oliver Tschauner, Paul Chow, Yuming Xiao, Pamela Burnley, Christopher J. Cline II, John M. Hanchar, Thomas Pettke, Guoyin Shen and Yusheng Zhao. Abstract Members Full Text