[go: up one dir, main page]

RU2003126787A - METHOD FOR PRODUCING ACTIVE ALUMINUM OXIDE - Google Patents

METHOD FOR PRODUCING ACTIVE ALUMINUM OXIDE Download PDF

Info

Publication number
RU2003126787A
RU2003126787A RU2003126787/15A RU2003126787A RU2003126787A RU 2003126787 A RU2003126787 A RU 2003126787A RU 2003126787/15 A RU2003126787/15 A RU 2003126787/15A RU 2003126787 A RU2003126787 A RU 2003126787A RU 2003126787 A RU2003126787 A RU 2003126787A
Authority
RU
Russia
Prior art keywords
solution
aluminum hydroxide
producing active
neutralization
precipitation
Prior art date
Application number
RU2003126787/15A
Other languages
Russian (ru)
Other versions
RU2258035C2 (en
Inventor
В чеслав Серафимович Анашкин (RU)
Вячеслав Серафимович Анашкин
Эдуард Сергеевич Фомин (RU)
Эдуард Сергеевич Фомин
Александр Дмитриевич Лебедев (RU)
Александр Дмитриевич Лебедев
Михаил Владимирович Зусман (RU)
Михаил Владимирович Зусман
Original Assignee
ОАО "Уральский научно-исследовательский и проектный институт алюминиевой промышленности" ОАО "Уралалюминий" (RU)
ОАО "Уральский научно-исследовательский и проектный институт алюминиевой промышленности" ОАО "Уралалюминий"
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 ОАО "Уральский научно-исследовательский и проектный институт алюминиевой промышленности" ОАО "Уралалюминий" (RU), ОАО "Уральский научно-исследовательский и проектный институт алюминиевой промышленности" ОАО "Уралалюминий" filed Critical ОАО "Уральский научно-исследовательский и проектный институт алюминиевой промышленности" ОАО "Уралалюминий" (RU)
Priority to RU2003126787/15A priority Critical patent/RU2258035C2/en
Publication of RU2003126787A publication Critical patent/RU2003126787A/en
Application granted granted Critical
Publication of RU2258035C2 publication Critical patent/RU2258035C2/en

Links

Landscapes

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

Claims (2)

1. Способ получения активного оксида алюминия, включающий непрерывное осаждение гидроксида алюминия псевдобемитовой структуры из растворов основного сульфата алюминия нейтрализацией раствором щелочного реагента, фильтрацию, промывку осадка химически обессоленной водой, сушку и термообработку с получением конечного продукта, отличающийся тем, что, с целью повышения качества конечного продукта и снижения расхода воды на промывку, производят после фильтрации автоклавную обработку полученного осадка гидроксида алюминия в водном растворе аммиака при следующих условиях: значение рН реакционной смеси 10,0-11,0, температура 135-145°С, время агитирования 1,0-2,0 ч.1. The method of producing active alumina, including continuous precipitation of aluminum hydroxide pseudoboehmite structure from solutions of basic aluminum sulfate by neutralization with an alkaline reagent solution, filtering, washing the precipitate with chemically demineralized water, drying and heat treatment to obtain the final product, characterized in that, in order to improve quality the final product and reduce the flow rate of water for washing, after filtration, an autoclave treatment of the obtained precipitate of aluminum hydroxide in an aqueous solution is performed D ammonia under the following conditions: pH of the reaction mixture 10,0-11,0, temperature 135-145 ° C, while agitirovaniya 1.0-2.0 hours. 2. Способ по п.1, отличающийся тем, что осаждение гидроксида алюминия псевдобемитовой структуры производят непрерывным осаждением из раствора основного сульфата алюминия концентрацией 75 г/дм3 Al2O3 нейтрализацией 25%-ным раствором NH4OH при значении рН реакционной смеси 9,5-10,5, температуре 80-90°С и времени агитирования 30-45 мин.2. The method according to claim 1, characterized in that the precipitation of aluminum hydroxide pseudoboehmite structure produced by continuous precipitation from a solution of basic aluminum sulfate concentration of 75 g / DM 3 Al 2 O 3 by neutralization with a 25% solution of NH 4 OH at a pH of the reaction mixture 9 , 5-10.5, at a temperature of 80-90 ° C and agitation time of 30-45 minutes.
RU2003126787/15A 2003-09-01 2003-09-01 Activated alumina production process RU2258035C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003126787/15A RU2258035C2 (en) 2003-09-01 2003-09-01 Activated alumina production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003126787/15A RU2258035C2 (en) 2003-09-01 2003-09-01 Activated alumina production process

Publications (2)

Publication Number Publication Date
RU2003126787A true RU2003126787A (en) 2005-02-27
RU2258035C2 RU2258035C2 (en) 2005-08-10

Family

ID=35286176

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003126787/15A RU2258035C2 (en) 2003-09-01 2003-09-01 Activated alumina production process

Country Status (1)

Country Link
RU (1) RU2258035C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013377155B2 (en) * 2013-02-04 2017-11-30 Obshchestvo S Ogranichennoy Otvetstvennost'yu "Ob'edinennaya Kompaniya Rusal Inzhenerno-Tekhnologicheskiy Tsentr" Aluminum oxide
US10023472B2 (en) 2013-02-04 2018-07-17 United Company RUSAL Engineering and Technology Centre LLC Aluminum oxide production method
RU2749511C1 (en) * 2020-10-13 2021-06-11 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Method for producing pseudobemite

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179408A (en) * 1977-03-25 1979-12-18 W. R. Grace & Co. Process for preparing spheroidal alumina particles
FR2520722A1 (en) * 1982-01-29 1983-08-05 Rhone Poulenc Spec Chim BOEHMITES AND PSEUDO-
RU2064837C1 (en) * 1994-03-16 1996-08-10 Рамиз Рза оглы Алиев Method to produce carrier for catalysts of hydraulic processing
US6429172B1 (en) * 1998-01-30 2002-08-06 Japan Energy Corporation Method of manufacturing pseudo-boehmite

Also Published As

Publication number Publication date
RU2258035C2 (en) 2005-08-10

Similar Documents

Publication Publication Date Title
CN108246345A (en) A kind of preparation method of oxide-molecular sieve catalyst
CN100453167C (en) Method for preparing mesoporous titanium dioxide optical catalyst using plant peels and films
CN108147613A (en) A kind of processing method of catalytic cracking flue gas desulphurization denitration waste water
CN1864851A (en) Method for preparing modified composite absorption agent of diatomite
RU2003126787A (en) METHOD FOR PRODUCING ACTIVE ALUMINUM OXIDE
CN102390807A (en) Copper series purifying agent and preparation method thereof
CN102442685B (en) Modification method of in-situ Y zeolite
CN108339563A (en) A kind of preparation method of aluminium oxide-molecular sieve catalyst
CN108479695A (en) The preparation method of molecular sieve/alumina core shell structure simultaneous SO_2 and NO removal adsorbent
CN108339373A (en) Application of the aluminium oxide-molecular sieve catalyst in being catalyzed carbon dioxide
RU2019100556A (en) Method for producing titanium dioxide nanoparticles and titanium dioxide nanoparticle
RU2018135031A (en) METHOD FOR PRODUCING ZEOLITE BY MTW STRUCTURE
CN107986306A (en) A kind of preparation method of Hydrotalcite
CN105709845A (en) Hydrocracking catalyst carrier and preparation method thereof
CN2680656Y (en) Nanofiltration water purification system
CN100340187C (en) Flavour development capacity improved glucosamine hydrochloride solution, preparation method thereof, combination and food of glucosamine hydrochloride
SU622759A1 (en) Method of obtaining magnesium aluminate
RU2004132613A (en) METHOD FOR PRODUCING MAGNESIUM OXIDE
RU2415085C2 (en) Method of producing platinum (iv) oxide
CN105712368B (en) A kind of Y type molecular sieve and preparation method thereof
CN114702086B (en) Water body purification material for drinking water
SU1263629A1 (en) Method for producing aluminium hydroxide hydrosol
RU99110277A (en) METHOD FOR PROCESSING SCENE CONCENTRATE
RU2007102491A (en) METHODS FOR PRODUCING A DISINFECTANT
RU2186114C1 (en) Method for obtaining milk of lime for purifying sugar-containing solutions

Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20090902