SU331664A1 - Method of concentrating high-silica alumina raw material - Google Patents

Method of concentrating high-silica alumina raw material

Info

Publication number
SU331664A1
SU331664A1 SU691331099A SU1331099A SU331664A1 SU 331664 A1 SU331664 A1 SU 331664A1 SU 691331099 A SU691331099 A SU 691331099A SU 1331099 A SU1331099 A SU 1331099A SU 331664 A1 SU331664 A1 SU 331664A1
Authority
SU
USSR - Soviet Union
Prior art keywords
slag
sublimation
chamber
raw material
gases
Prior art date
Application number
SU691331099A
Other languages
Russian (ru)
Inventor
А.Я. Баяхунов
М.И. Вдовенко
М.Р. Курмангалиев
А.Б. Резняков
Original Assignee
Казахский научно-исследовательский институт энергетики
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 Казахский научно-исследовательский институт энергетики filed Critical Казахский научно-исследовательский институт энергетики
Priority to SU691331099A priority Critical patent/SU331664A1/en
Application granted granted Critical
Publication of SU331664A1 publication Critical patent/SU331664A1/en

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

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

Claims (1)

Изобретение касаетс  обогащени  глинозеисодержащего сырь  (понижени в нем содержани  SiO2 и повышени  ABjiO) . Известен способ обогащени  высококремнеземистого глиноземного сырь термообработкой его при 500-900°С в присутствии паров хлорида алюмини с возгонкой кремнезема. В предлагаемом способе с целью упрощени  процесса термообработку в дут путем сжигани  сырь  при 22002500 С с Жидким шлак оуда лени ем. Предлагав ый способ позвол ет исключить применение хлорида алюмини . Пример. Экибастузский угол с высоким содержанием зо.пы, состо щий в основном из SiOj + Аб2.Оэ сжигают с жидким шлакоудалением. По скольку температура плавлени  золы угл  высока (v 1700°С) , необходим подогрев воздуха до 700°С. Сжигание угл  производ т в циклонной камере с верхним выводом газов. При этом газы и шлак вывод т из камеры раздельно: газы вывод т вверх в эне готехнологический котел, шлак выпускают вниз в возгоночную камеру. В качестве возгоночной камеры можно использовать любой высокотемпературный .аппарат: плазматрон, электропечь, огневую печь на кислородном или высок оподогретом (до / 1200°С) дутье. В возгоночной камере при 2200-2500 0 происходит возгонка SiO, вынос щейс  газами в котел-утилизатор (в случае использовани  S±Os. - через него в конденсатор). При этом происходит обогащение шлака . Из возгоночной камеры этот шлак подают в дальнейшую переработку дл  получени  глинозема. Содержание SiOj снижают на 1520% . Формула изобретени  Способ обогащени  высококремнеземистого глиноземного сырь  путем его термообработки с возгонкой кр&лнезема , отличающийс   там, что е целью упрощени  процесса тер юобработку ведут путем сжигаки  сырь  при 2200-2500 С с жидким шлакоудалением.The invention relates to the enrichment of alumina-containing raw materials (reducing the content of SiO2 in it and increasing ABjiO). A known method of enriching high-silica alumina raw materials by thermally treating it at 500-900 ° C in the presence of aluminum chloride vapors with the sublimation of silica. In the proposed method, in order to simplify the process, the heat treatment is carried out by burning the raw material at 22002500 ° C with liquid slag. The proposed method eliminates the use of aluminum chloride. Example. Ekibastuz corner with a high content of zo.py, consisting mainly of SiOj + Ab2. Oe is burned with liquid slag removal. Since the ash melting point of coal is high (v 1700 ° C), it is necessary to heat the air to 700 ° C. The coal is burned in a cyclone chamber with an upper gas outlet. In this case, the gases and slag are removed from the chamber separately: the gases are removed upwards in an energy heating boiler, the slag is released down into the sublimation chamber. As a sublimation chamber, you can use any high-temperature apparatus: a plasmatron, an electric furnace, a firing furnace on an oxygen or high heated (up to / 1200 ° C) blast. In the sublimation chamber at 2200–2500 0, SiO is sublimated, which is carried by gases to the waste-heat boiler (in the case of using S ± Os. - through it to the condenser). When this occurs, the enrichment of slag. From the sublimation chamber, this slag is fed to further processing to produce alumina. The content of SiOj is reduced by 1520%. The invention The method of enriching high-silica alumina raw materials by heat treatment with sublimation of cr & lzema, which is designed to simplify the process of termination by burning the raw material at 2200-2500 C with liquid slagging.
SU691331099A 1969-05-19 1969-05-19 Method of concentrating high-silica alumina raw material SU331664A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU691331099A SU331664A1 (en) 1969-05-19 1969-05-19 Method of concentrating high-silica alumina raw material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU691331099A SU331664A1 (en) 1969-05-19 1969-05-19 Method of concentrating high-silica alumina raw material

Publications (1)

Publication Number Publication Date
SU331664A1 true SU331664A1 (en) 1979-12-25

Family

ID=20445786

Family Applications (1)

Application Number Title Priority Date Filing Date
SU691331099A SU331664A1 (en) 1969-05-19 1969-05-19 Method of concentrating high-silica alumina raw material

Country Status (1)

Country Link
SU (1) SU331664A1 (en)

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