Toth Aluminum Corporation

Roger Frank Sebenik

Alfred Lippman

Ronald Wyndham

John Christopher Terry

Charles Toth

The present invention provides a process for the production of aluminum chloride and alumina of metallurgical grade purity, and valuable by-products from aluminous ores like clay, bauxites and laterites. The process comprises carbo-chlorination of the ore to produce aluminum chloride and other metal chlorides. The aluminum chloride is separated, purified and utilized as such or oxidized to make alumina while the other metal chlorides are processed to recover maximum values.

Process for the production of aluminum chloride and related products

The present invention provides a process for the catalytic reduction of aluminum chloride by manganese to form a high aluminum content alloy, separating the catalysis metal from the alloy, and separating the manganese in the alloy to produce essentially pure aluminum. As a preferred embodiment, liquid aluminum chloride is contacted with solid manganese metal in the presence of a Group IIB metal or compound thereof at a relatively low temperature and at a pressure to maintain the reactants in such phases.

Catalytic process for the reduction of aluminum chloride by manganese

A process is disclosed for collecting and purifying aluminum chloride from gases like those produced from the chlorination of bauxite, clay and other aluminous ores. The method comprises first dissolving the aluminum chloride at about atmospheric pressure in a molten salt solvent in which most of the other principal metal chloride vapors, like SiCl.sub.4 and TiCl.sub.4, are substantially insoluble; then vaporizing and separating the AlCl.sub.3 to produce a purified liquid product. This process eliminates the previous use of costly and/or hazardous compressors and scraped-wall condensers and provides for economical recovery of purified liquid aluminum chloride.

Process for the purification of aluminum chloride

A process for purifying aluminum chloride gas such as that produced in the chlorination of bauxite, clay and other aluminous ores is disclosed. The method first selectively dissolves or liquefies AlCl.sub.3 from an anhydrous mixture of gaseous metal chlorides which may also include the chlorides of Si, Ti, Fe and other metals. More specifically, the method of the present invention provides for selectively dissolving AlCl.sub.3 vapor at substantially atmospheric pressure without the use of costly or hazardous compressors, or the scraped-wall condensers formerly required for this purpose. In addition, the present method allows for economical recovery of the liquefied AlCl.sub.3.

Purification of aluminum chloride

A process of carbo-chlorination of AlPO.sub.4 wherein AlPO.sub.4 or AlPO.sub.4 -containing material is introduced into a reactor along with chlorinating agents and a source of carbon. The reactor is heated to approximately 600.degree. to 1200.degree.C and forms aluminum chlorides, phosphorous oxides, phosphorous chlorides, phosphorous oxychlorides and carbon oxides. These reaction products are then separated into three fractions by condensation, the first fraction being P.sub.2 O.sub.5, the second fraction being AlCl.sub.3 and AlCl.sub.3 .POCl.sub.3 and the third fraction being remaining gasses, namely PCl.sub.3, PCl.sub.5, P.sub.2 O.sub.3, CO and CO.sub.2. The second fraction is reacted in a further reactor to give AlCl.sub.3 and P.sub.2 O.sub.3 which are separated by distillation. The phosphorous chlorides from the third fraction are oxidized, along with the P.sub.2 O.sub.3 of the second fraction, to form P.sub.2 O.sub.5.

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Metairie, LA, United States of America

Roger Frank Sebenik