ES198518A2 - PROCEDURE FOR THE BENEFIT OF BY-PRODUCTS DEDUCTED FROM CHEMICAL TREATMENTS OF BAUXITES - Google Patents

PROCEDURE FOR THE BENEFIT OF BY-PRODUCTS DEDUCTED FROM CHEMICAL TREATMENTS OF BAUXITES

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Publication number
ES198518A2
ES198518A2 ES0198518A ES198518A ES198518A2 ES 198518 A2 ES198518 A2 ES 198518A2 ES 0198518 A ES0198518 A ES 0198518A ES 198518 A ES198518 A ES 198518A ES 198518 A2 ES198518 A2 ES 198518A2
Authority
ES
Spain
Prior art keywords
soda
treatment
aluminum
procedure
precipitation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES0198518A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to ES0198518A priority Critical patent/ES198518A2/en
Publication of ES198518A2 publication Critical patent/ES198518A2/en
Expired legal-status Critical Current

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  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Mejoras en el objeto de la Patente de Invención solicitada el 28 de mayo de 1951 por "Procedimiento para el beneficiado de subproductos deducidos de tratamientos químicos de bauxitas"según las cuales si los resíduos a beneficiar se hallan ya en estado sólido o pastoso o de masa amorfa cual ocurra por ejemplo con los llamados "lodos" resultantes del tratamiento de barritas para extraer sales de aluminio se tratan los mismos directamente con sulfúrico prescindiendo de la separación primaria obtenible por hidrólisis y del tratamiento de los líquidos deducidos de ella según descrito en la patente principal; se practica la separación de productos resultantes del dicho ataque en forma totalmente análoga a como ha sido relacionado en la patente principal ( o sea en lineas generales : Filtrado para separación de la sílice neutralización escalonada de los líquido con un álcali preferiblemente amoníaco primero en presencia de SO2 con precipitación del ácido titánico que se separa por filtración y después sin ella con precipitación entonces de los hidratos de aluminio y hierro que se tratan por sosa quedando sólido el de hierro y solubilizándose el de aluminio bajo forma de aluminato de sosa que se descompone finalmente para recuperar la sosa y dar hidrato de aluminio tratamiento con cal de la parte líquida antes separada desprendiéndose amoníaco que se recupera haciéndolo borbotear en agua separación del sulfato de calcio por precipitación y filtrado y obtención de una solución de sulfatos de magnesio y de sodio) y se complementa el procedimiento por el tratamiento del último líquido obtenido que contiene sulfatos de sodio y de magnesio con sosa que precipita el hidrato de magnesio utilizable y deja en solución el sulfato sódico susceptible éste también de eventual beneficiado por métodos conocidos.Improvements in the object of the Patent of Invention requested on May 28, 1951 for "Procedure for the beneficiation of by-products deducted from chemical bauxite treatments" according to which if the residues to be benefited are already in a solid or pasty state or in mass amorphous, which occurs, for example, with the so-called "sludge" resulting from the treatment of bars to extract aluminum salts, they are treated directly with sulfuric, dispensing with the primary separation obtainable by hydrolysis and the treatment of the liquids derived from it as described in the patent principal; The separation of products resulting from said attack is practiced in a totally analogous way to as it has been related in the main patent (that is, in general lines: Filtering for separation of the silica, stepped neutralization of the liquid with an alkali, preferably ammonia first in the presence of SO2 with precipitation of the titanic acid that is separated by filtration and then without it with precipitation then of the aluminum and iron hydrates that are treated by soda, the iron remaining solid and the aluminum solubilizing in the form of soda aluminate that finally decomposes to recover the soda and give aluminum hydrate, treatment with lime of the liquid part previously separated, releasing ammonia that is recovered by making it bubble in water, separating the calcium sulfate by precipitation and filtering, and obtaining a solution of magnesium and sodium sulfates) and the procedure is complemented by the treatment of the last liquid obtained q It contains sodium and magnesium sulfates with soda that precipitates the usable magnesium hydrate and leaves the sodium sulfate in solution, which can also possibly benefit from known methods.

ES0198518A 1951-06-15 1951-06-15 PROCEDURE FOR THE BENEFIT OF BY-PRODUCTS DEDUCTED FROM CHEMICAL TREATMENTS OF BAUXITES Expired ES198518A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0198518A ES198518A2 (en) 1951-06-15 1951-06-15 PROCEDURE FOR THE BENEFIT OF BY-PRODUCTS DEDUCTED FROM CHEMICAL TREATMENTS OF BAUXITES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0198518A ES198518A2 (en) 1951-06-15 1951-06-15 PROCEDURE FOR THE BENEFIT OF BY-PRODUCTS DEDUCTED FROM CHEMICAL TREATMENTS OF BAUXITES

Publications (1)

Publication Number Publication Date
ES198518A2 true ES198518A2 (en) 1953-08-16

Family

ID=38467816

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0198518A Expired ES198518A2 (en) 1951-06-15 1951-06-15 PROCEDURE FOR THE BENEFIT OF BY-PRODUCTS DEDUCTED FROM CHEMICAL TREATMENTS OF BAUXITES

Country Status (1)

Country Link
ES (1) ES198518A2 (en)

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