SU108321A2 - The method of producing aluminum hydroxide - Google Patents
The method of producing aluminum hydroxideInfo
- Publication number
- SU108321A2 SU108321A2 SU575137A SU575137A SU108321A2 SU 108321 A2 SU108321 A2 SU 108321A2 SU 575137 A SU575137 A SU 575137A SU 575137 A SU575137 A SU 575137A SU 108321 A2 SU108321 A2 SU 108321A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- aluminum hydroxide
- hydroxide
- producing aluminum
- aluminum
- nitric acid
- Prior art date
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
Изобретение относитс к спосоt )aM производства активной окиси алюмини , пригодной дл получени катализаторов и, в частности, к способам получени чистой гидроокиси алюмини , вл ющейс промежуточным продуктом производства .This invention relates to the method of producing active alumina suitable for the preparation of catalysts and, in particular, to methods for producing pure aluminum hydroxide, which is an intermediate product of production.
Известны различные варианты способа получени гидроокиси алюмипи , предусматривающие осаждение алюмината натри серной или азотной кислотой. Известен также вариант, в котором, с целью снижени расхода кислоты, исходную техническую гидроокись раствор ют частично в пгелочи и частично в азотной кислоте, а осаждение осуществл ют сливом растворов (авт. св. № 101469).Various variants of the process for the preparation of alumi hydroxide are known, involving the precipitation of sodium aluminate with sulfuric or nitric acid. A variant is also known in which, in order to reduce the consumption of acid, the initial technical hydroxide is dissolved partly in plochchi and partly in nitric acid, and the precipitation is carried out by draining the solutions (ed. St. 101469).
Недостатком способа по авт. св. № 101469 вл етс использование дл растворени гидроокиси азотной кислоты, более дорогой, по сравнению с серной, и менее удобной в обращении.The disadvantage of this method is aut. St. No. 101469 is used to dissolve nitric acid hydroxide, which is more expensive than sulfuric and less convenient to handle.
Предлагаемый способ отличаетс от известного тем, что, с целью удешевлени производства, часть исходной технической гидроокисиThe proposed method differs from that in that, in order to reduce the cost of production, part of the original technical hydroxide
раствор етс вместо азотной кислоты в серной, а осаждение гидроокиси алюмини ведетс при параллельном сливе раствора сульфата алюмини и алюмината натри , разбавленных до уд. в. 1,05-1,25 при температуре 30-60° и рН среды 9,0-9,5.dissolves instead of nitric acid in sulfuric acid, and the precipitation of aluminum hydroxide is carried out by parallel draining a solution of aluminum sulfate and sodium aluminate, diluted to be. at. 1.05-1.25 at a temperature of 30-60 ° and a pH of 9.0-9.5.
Способ осупаествл ют следующим образом.The method is as follows.
Часть технической гидроокиси алюмини обрабатывают едкой щелочью , остальную часть ее раствор ют в серной кислоте; при этом получают растворы алюмината натри и сернокислого алюмини (сульфата алюмини ). Полученные растворы после разбавлени их водой до уд. в. 1,05-1,25 и отсто от загр знений параллельными стру ми сливают в реактор, в котором при температуре 30-60° и рП среды 9,0-9,5 производ т осаждение гидрата окиси алюмини . Дальнейща обработка осадка ведетс известными приемами.A part of technical aluminum hydroxide is treated with caustic alkali, the rest of it is dissolved in sulfuric acid; solutions of sodium aluminate and aluminum sulphate (aluminum sulphate) are obtained. The obtained solutions after diluting them with water to beats. at. 1.05-1.25 and the distance from contamination by parallel streams is poured into the reactor, in which aluminum oxide hydrate is deposited at a temperature of 30-60 ° C and RP of environment 9.0-9.5. Further treatment of the precipitate is carried out by known methods.
Предмет изобретени Subject invention
Способ получени гидроокиси алюмини , пригодной дл получе . 108321- 2 ни из нее активной окиси алюми-ние гидроокиси алюмини вени , по авт. св. № 101469, о тли-детс при параллельном сличающийс тем, что, с целью раствора сульфата алюмини и удешевлени производства, часть „, разбавленных исходной технической гидроокиси, v,r раствор етс вместо азотной кисло-ло ул. в. 1,05-1,25 при температуре ты в серной кислоте, а осажде-30-60° и рН среды 9,0-9,5.A method for producing aluminum hydroxide suitable for production. 108321-2 of her active alumina, according to the author. St. No. 101469, about aphid detals with parallel comparison with the fact that, for the purpose of aluminum sulphate solution and cheaper production, part diluted with the original technical hydroxide, v, r is dissolved instead of nitric acid street. at. 1.05-1.25 at a temperature you are in sulfuric acid, and the precipitate is 30-60 ° and the pH is 9.0-9.5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU575137A SU108321A2 (en) | 1955-06-21 | 1955-06-21 | The method of producing aluminum hydroxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU575137A SU108321A2 (en) | 1955-06-21 | 1955-06-21 | The method of producing aluminum hydroxide |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU101469 Addition |
Publications (1)
Publication Number | Publication Date |
---|---|
SU108321A2 true SU108321A2 (en) | 1956-11-30 |
Family
ID=48406266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU575137A SU108321A2 (en) | 1955-06-21 | 1955-06-21 | The method of producing aluminum hydroxide |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU108321A2 (en) |
-
1955
- 1955-06-21 SU SU575137A patent/SU108321A2/en active
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