RU92010983A - METHOD FOR EXTRACTION OF ALUMINUM, CALCIUM AND RARE EARTH METALS FROM RED Sludge from Alumina Production - Google Patents

METHOD FOR EXTRACTION OF ALUMINUM, CALCIUM AND RARE EARTH METALS FROM RED Sludge from Alumina Production

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Publication number
RU92010983A
RU92010983A RU92010983/02A RU92010983A RU92010983A RU 92010983 A RU92010983 A RU 92010983A RU 92010983/02 A RU92010983/02 A RU 92010983/02A RU 92010983 A RU92010983 A RU 92010983A RU 92010983 A RU92010983 A RU 92010983A
Authority
RU
Russia
Prior art keywords
calcium
rare earth
aluminum
earth metals
alumina production
Prior art date
Application number
RU92010983/02A
Other languages
Russian (ru)
Other versions
RU2034066C1 (en
Inventor
П.В. Комаров
В.К. Молотилкин
М.С. Поляков
А.Ю. Шильников
Original Assignee
Производственно-коммерческая фирма "ТНП-ИНДАСТРИ"
Filing date
Publication date
Application filed by Производственно-коммерческая фирма "ТНП-ИНДАСТРИ" filed Critical Производственно-коммерческая фирма "ТНП-ИНДАСТРИ"
Priority to RU92010983A priority Critical patent/RU2034066C1/en
Priority claimed from RU92010983A external-priority patent/RU2034066C1/en
Application granted granted Critical
Publication of RU2034066C1 publication Critical patent/RU2034066C1/en
Publication of RU92010983A publication Critical patent/RU92010983A/en

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Claims (1)

Способ извлечения алюминия, кальция и редкоземельных металлов из красных шламов глиноземных производств относится к цветной металлургии, в частности к способам извлечения легких, преимущественно алюминия, щелочноземельных, преимущественно кальция, и редкоземельных металлов из красных шламов - отходов глиноземных производств. Цель: повышение избирательности извлечения целевых продуктов и упрощение процесса. Данный способ включает выщелачивание кислотой, фильтрацию раствора и разделение извлекаемых целевых продуктов. Новым в способе является то, что выщелачивание проводят с использованием в качестве выщелачиваемого реагента жидкие карбоновые кислоты жирного ряда с числом атомов углерода в молекуле более 5-ти или их смеси при весовом соотношении сухой твердой и жидкой фаз 1 : (7 - 10) при температуре 30 - 80oС в течение 0,5 - 5 ч.The method for extracting aluminum, calcium and rare earth metals from red mud of alumina production relates to non-ferrous metallurgy, in particular to methods for extracting light, mainly aluminum, alkaline earth, mainly calcium, and rare earth metals from red mud, waste from alumina production. Purpose: increasing the selectivity of the extraction of target products and simplifying the process. This method involves acid leaching, filtering a solution, and separating recoverable target products. New in the method is that leaching is carried out using fat carbohydrate liquid carboxylic acids with more than 5 carbon atoms in a molecule as a leachable reagent or their mixture at a weight ratio of dry solid to liquid phases of 1: (7 - 10) at a temperature 30 - 80 o C for 0.5 to 5 hours
RU92010983A 1992-12-01 1992-12-01 Method for extraction of aluminum, calcium and rare-earth metals from red mud of alumina production RU2034066C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU92010983A RU2034066C1 (en) 1992-12-01 1992-12-01 Method for extraction of aluminum, calcium and rare-earth metals from red mud of alumina production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU92010983A RU2034066C1 (en) 1992-12-01 1992-12-01 Method for extraction of aluminum, calcium and rare-earth metals from red mud of alumina production

Publications (2)

Publication Number Publication Date
RU2034066C1 RU2034066C1 (en) 1995-04-30
RU92010983A true RU92010983A (en) 1997-03-20

Family

ID=20133328

Family Applications (1)

Application Number Title Priority Date Filing Date
RU92010983A RU2034066C1 (en) 1992-12-01 1992-12-01 Method for extraction of aluminum, calcium and rare-earth metals from red mud of alumina production

Country Status (1)

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RU (1) RU2034066C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9771633B2 (en) * 2012-07-20 2017-09-26 United Company RUSAL Engineering and Technology Centre LLC Method for the acid treatment of red mud

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