RU2012106049A - METHOD FOR COMPREHENSIVE ASH PROCESSING FROM COAL BURNING - Google Patents
METHOD FOR COMPREHENSIVE ASH PROCESSING FROM COAL BURNING Download PDFInfo
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- RU2012106049A RU2012106049A RU2012106049/05A RU2012106049A RU2012106049A RU 2012106049 A RU2012106049 A RU 2012106049A RU 2012106049/05 A RU2012106049/05 A RU 2012106049/05A RU 2012106049 A RU2012106049 A RU 2012106049A RU 2012106049 A RU2012106049 A RU 2012106049A
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- ash
- residue
- treated
- sulfuric acid
- added
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Silicon Compounds (AREA)
Abstract
1. Способ комплексной переработки золы от сжигания углей с получением высокодисперсного диоксида кремния, сульфата алюминия и концентрата редких и редкоземельных элементов, заключающийся в том, что золу от сжигания углей обрабатывают фторидом аммония с серной кислотой, отличающийся тем, что в реакционную зону добавляют углеродсодержащий материал в количестве 10-25 кг на тонну золы.2. Способ по п.1, отличающийся тем, что к остатку после фторидной обработки золы добавляют концентрированную серную кислоту в двукратном избытке к содержащемуся в остатке алюминию, выдерживают при температуре 250°С в течение 1,5 ч и обрабатывают водой.3. Способ по любому из пп.1 и 2, отличающийся тем, что твердый остаток отфильтровывают и прокаливают при температуре 800°С.4. Способ по п.1, отличающийся тем, что из золы предварительно удаляется железо магнитной сепарацией.1. A method of complex processing of ash from coal combustion to obtain highly dispersed silicon dioxide, aluminum sulfate and a concentrate of rare and rare earth elements, which consists in the fact that ash from coal combustion is treated with ammonium fluoride with sulfuric acid, characterized in that a carbon-containing material is added to the reaction zone in the amount of 10-25 kg per ton of ash. 2. The method according to claim 1, characterized in that concentrated sulfuric acid in a twofold excess is added to the residue after the fluoride treatment of the ash to the aluminum contained in the residue, kept at a temperature of 250 ° C for 1.5 hours and treated with water. The method according to any one of claims 1 and 2, characterized in that the solid residue is filtered off and calcined at a temperature of 800 ° C. 4. The method according to claim 1, characterized in that iron is previously removed from the ash by magnetic separation.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2012106049/05A RU2502568C2 (en) | 2012-02-20 | 2012-02-20 | Complex processing of coal combustion flue ash |
Applications Claiming Priority (1)
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RU2012106049/05A RU2502568C2 (en) | 2012-02-20 | 2012-02-20 | Complex processing of coal combustion flue ash |
Publications (2)
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RU2012106049A true RU2012106049A (en) | 2013-08-27 |
RU2502568C2 RU2502568C2 (en) | 2013-12-27 |
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RU2012106049/05A RU2502568C2 (en) | 2012-02-20 | 2012-02-20 | Complex processing of coal combustion flue ash |
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RU (1) | RU2502568C2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2567954C1 (en) * | 2014-08-01 | 2015-11-10 | Общество с ограниченной ответственностью "Экологические Системы" | METHOD OF OBTAINING SYNTHETIC SiO2 (SILICON DIOXIDE) |
RU2600640C1 (en) * | 2015-12-18 | 2016-10-27 | Общество С Ограниченной Ответственностью "СИОТЭК" | Method of producing synthetic silicon dioxide |
RU2630021C1 (en) * | 2016-06-07 | 2017-09-05 | Федеральное государственное бюджетное учреждение науки "Институт химии твердого тела Уральского Отделения Российской Академии наук" | Method for processing fly ash of thermal power stations |
RU2648697C1 (en) * | 2017-07-26 | 2018-03-28 | Леонид Леонидович Сидоров | Method of industrial processing sunflower peeling ash |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5242670A (en) * | 1992-07-02 | 1993-09-07 | Gehringer Ronald C | Method for hydrofluoric acid digestion of silica/alumina matrix material for the production of silicon tetrafluoride, aluminum fluoride and other residual metal fluorides and oxides |
RU2170775C1 (en) * | 2000-01-26 | 2001-07-20 | Омский государственный университет | Method of recovery of rare-earth and radioactive metals from oxidized technologically rebellious raw materials |
RU2201980C2 (en) * | 2000-10-18 | 2003-04-10 | ЗАО "Гагарка-Аи-ПВ" | Method of extraction of noble metals from solutions of their salts (versions) |
WO2002053500A2 (en) * | 2000-12-31 | 2002-07-11 | Ati-Aluminum Technologies Israel Ltd. | Production of aluminum compounds and silica from ores |
TWI231063B (en) * | 2003-11-14 | 2005-04-11 | Ind Tech Res Inst | Process of recovering valuable metals from waste secondary batteries |
RU2261841C1 (en) * | 2004-03-29 | 2005-10-10 | Государственное образовательное учреждение высшего профессионального образования Омский государственный университет | Method for hydrochemical preparing highly dispersed silicon dioxide from technogenic silicon-containing raw |
RU2256497C1 (en) * | 2004-04-30 | 2005-07-20 | Дегтярев Владислав Васильевич | Sorbent and sorption-desorption method for recovering uranium and actinide compounds using this method |
RU2293134C1 (en) * | 2005-05-26 | 2007-02-10 | Институт химии и химической технологии СО РАН (ИХХТ СО РАН) | Process for extracting rare-earth metals and yttrium from coals and ash-slag waste material of coal burning |
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2012
- 2012-02-20 RU RU2012106049/05A patent/RU2502568C2/en not_active IP Right Cessation
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RU2502568C2 (en) | 2013-12-27 |
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