SU1668301A1 - Method for processing alumosilicates to obtain aluminium fluoride - Google Patents
Method for processing alumosilicates to obtain aluminium fluoride Download PDFInfo
- Publication number
- SU1668301A1 SU1668301A1 SU894671911A SU4671911A SU1668301A1 SU 1668301 A1 SU1668301 A1 SU 1668301A1 SU 894671911 A SU894671911 A SU 894671911A SU 4671911 A SU4671911 A SU 4671911A SU 1668301 A1 SU1668301 A1 SU 1668301A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fluoride
- ash
- ammonium
- aluminum fluoride
- calcined
- Prior art date
Links
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 6
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims abstract description 10
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940070337 ammonium silicofluoride Drugs 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 238000007885 magnetic separation Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000003245 coal Substances 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 229910000323 aluminium silicate Inorganic materials 0.000 claims 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 1
- 239000002956 ash Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000002918 Fraxinus excelsior Nutrition 0.000 abstract description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910020169 SiOa Inorganic materials 0.000 description 1
- 101150006997 TKFC gene Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
Изобретение относитс к химической промышленности, преимущественно к производству фторидов, и может быть использовано дл производства фторида алюмини . Цель изобретени - расширение сырьевой базы. Золу от сжигани высокозольных углей прокаливают при 550 - 750°С в закрытом реакторе, после чего подвергают магнитной сепарации. Немагнитную фракцию обрабатывают фторидом аммони в количестве 100 - 120% от стехиометрически необходимого дл образовани фторида алюмини и кремнефторида аммони при 300 - 600°С. Данный способ позвол ет расширить сырьевую базу за счет возможности переработки золы на фторид алюмини , а также улучшить экологию за счет использовани отходов теплоэлектростанций. 1 табл.The invention relates to the chemical industry, primarily to the production of fluoride, and can be used for the production of aluminum fluoride. The purpose of the invention is the expansion of the resource base. The ash from the combustion of high-ash coals is calcined at 550–750 ° C in a closed reactor, after which it is subjected to magnetic separation. The non-magnetic fraction is treated with ammonium fluoride in the amount of 100–120% of the stoichiometrically necessary for the formation of aluminum fluoride and ammonium silicofluoride at 300–600 ° C. This method allows to expand the raw material base due to the possibility of processing ashes for aluminum fluoride, as well as to improve the environment through the use of waste thermal power plants. 1 tab.
Description
Изобретение относитс к химической промышленности, преимущественно к производству фторидов, и может быть использовано дл производства фторида алюмини , используемого в больших количествах при производстве металлического алюмини .The invention relates to the chemical industry, primarily to the production of fluoride, and can be used to produce aluminum fluoride, which is used in large quantities in the production of metallic aluminum.
Цель изобретени - расширение сырьевой базы.The purpose of the invention is the expansion of the resource base.
П р и м е р 1. 100 г золы от сжигани Экибастузских углей, содержащей, %: 57,4 SI02; 25 4,7 РеаОз; 18 NIOz; 6,3 С; остальное другие компоненты, прокаливают без доступа воздуха в закрытом реакторе при 550°С, затем магнитной сепарацией выдел ют 50 г магнитной фракции. Немагнитную фракцию, содержащую, %: 62,5 SlOa: 35 А1аОз; 0,25 РегОз, смешивают с 184,4 г фторида аммони (норма 120% от стехиометрии реакций образовани фторида алюмини и кремнефторида аммони ) и прокаливают при 300°С в течение 4 ч. После термообработки получают 31,5 г продукта, содержащего , %: 91,4 А1Рз, 0,1 диоксида кремни ; 0,39 РеаОз. Из образовавшихс возгонов, содержащих , г: 54.2 SIR; 37,39 HP; 84,74 МНз: 28,05 НгО, выдел ют после абсорбции 31,2 г SI02 и получают раствор, содержащий ЫНдР, из которого после упаривани и кристаллизации выдел ют 146 г , возвращаемый на смешение с золой.PRI me R 1. 100 g of ash from the combustion of Ekibastuz coals, containing,%: 57.4 SI02; 25 4.7 ReaOz; 18 NIOz; 6.3 C; the rest of the other components, calcined without air access in a closed reactor at 550 ° C, then 50 g of the magnetic fraction is separated by magnetic separation. Non-magnetic fraction containing,%: 62.5 SlOa: 35 A1aOz; 0.25 RegOz, mixed with 184.4 g of ammonium fluoride (the norm is 120% of the stoichiometry of the reactions of formation of aluminum fluoride and ammonium silicofluoride) and calcined at 300 ° C for 4 hours. After heat treatment, 31.5 g of product containing% : 91.4 A1P3, 0.1 silica; 0.39 ReaOz. From sublimates formed, containing, g: 54.2 SIR; 37.39 HP; 84.74 Mn3: 28.05 NgO, after absorption 31.2 g of SI02 are obtained and a solution containing HHdR is obtained, from which 146 g is recovered after evaporation and crystallization, which is returned to mixing with ash.
Пример 2. 100 г золы от сжигани Экибастузских углей, содержащей, %: 57,4 SJOz; 25 А120з; 4,7 РеаОз; 1,8 TlCfc; 6,3 С; остальное другие компоненты, прокалиёают без доступа воздуха при 600°С, затем магнитной сепарацией выдел ют 53 г магнитной фракции. Немагнитную фракцию (47 г), содержащую, %: 63,1 Si02; 35,8 АЬОз; 0,23 Ре20з, смешивают с 146,2 г NHaF (100% от стехиометрии реакций образовани фторида алюмини и кремнефторида аммони ) и прокаливают при 400°С в течение 4 ч. После термообработки получают 29,7 г продукта,Example 2. 100 g of ash from the combustion of Ekibastuz coal containing,%: 57.4 SJOz; 25 A120z; 4.7 ReaOz; 1.8 TlCfc; 6.3 C; the rest of the other components are calcined without air access at 600 ° C, then 53 g of the magnetic fraction is separated by magnetic separation. Non-magnetic fraction (47 g), containing,%: 63.1 Si02; 35.8 ALS; 0.23 Fe203, mixed with 146.2 g NHaF (100% of the stoichiometry of the reactions of formation of aluminum fluoride and ammonium silicofluoride) and calcined at 400 ° C for 4 hours. After heat treatment, 29.7 g of product are obtained,
ОABOUT
оabout
ыs
содержащего, %: 90,5 AlFs; 0,11 SlCte; 1,7 свободной окиси алюмини (); 0,37 Ре20з.containing,%: 90.5 AlFs; 0.11 SlCte; 1.7 free alumina (); 0.37 Re203
Из образовавшихс возгонов, содержащих , г: 51,3 19,73 HF; 66,6 NH3; 26,4 Н20, выдел ют после абсорбции 29,5 SiOa и получают раствор, содержащий NH4F, из которого после упаривани и кристаллизации выдел ют 110 NhMF, возвращаемый на смещение с золой.From sublimates formed, containing, g: 51.3 19.73 HF; 66.6 NH3; 26.4 H20, after absorbing 29.5 SiOa is isolated and a solution containing NH4F is obtained, from which 110 NhMF is recovered after evaporation and crystallization, which is returned to the ashes.
Примерз. 100 г золы от сжигани Экибастуэских углей, содержащей, %: 57,4 SI02; 25 А12Оз; 4,7 Рв20з 1.8 TKfc; 6,3 С; остальное другие, компоненты, прокаливают без доступа воздуха при 750°С, затем магнитной сепарацией выдел ют 55 г магнитной фракции. Немагнитную фракцию (45 г), содержащую, %: 63 SIOj; 35,5 AlaOs; 0,18 Рв20з, смешивают с 153,63 г фторида аммони (110% от стехиометрии реакций образовани фторида алюмини и кремнефторида аммони ) и прокаливают при 600°С в течение 3 ч. После термообработки получают 28,6 г продукта, содержащего, %: 91,2 AJFa; 0,07 SI02; 0,28 Рв20з.Froze 100 g of ash from the combustion of Ekibastui coals, containing,%: 57.4 SI02; 25 A12Oz; 4.7 Rv20z 1.8 TKfc; 6.3 C; the rest of the other components are calcined without air access at 750 ° C, then 55 g of the magnetic fraction is separated by magnetic separation. Non-magnetic fraction (45 g), containing,%: 63 SIOj; 35.5 AlaOs; 0.18 Rv203, mixed with 153.63 g of ammonium fluoride (110% of the stoichiometry of the reactions of formation of aluminum fluoride and ammonium silicofluoride) and calcined at 600 ° C for 3 hours. After heat treatment, 28.6 g of product are obtained, containing,%: 91.2 AJFa; 0.07 SI02; 0.28 Rv20z.
Из образовавшихс возгонов, содержащих , г: 49,14 SIF4,26,45 HF; 70,59 ЫНз;25,45 НаО, выдел ют после абсорбции 28,3 SI02 и получают раствор, содержащий NH4F, из которого после упаривани и кристаллизации выдел ют 118 г МЩР. возвращаемый на смешение с золой.From sublimates formed, containing, g: 49.14 SIF4.26.45 HF; 70.59 Bhz; 25.45 NaO, after absorbing 28.3 SI02 was isolated and a solution containing NH4F was obtained, from which 118 g of MSPR was isolated after evaporation and crystallization. returned for mixing with ashes.
Экспериментальные данные приведены в таблице.The experimental data are shown in the table.
Уменьшение нормы фторида аммони ниже 100% от стехиометрически необходимо приводит к значительному увеличению остаточного содержани диоксида кремни в продукте, а увеличение нормы фторидов аммони более 120% приводит к снижению скорости процесса обескремнивани . Проведение процесса при температурах ниже 300°С резко снижает скорость процесса, а увеличение температуры выше 600°С приводит к увеличению остаточного содержани диоксида кремни в продукте.A decrease in the rate of ammonium fluoride below 100% of stoichiometrically necessary leads to a significant increase in the residual content of silicon dioxide in the product, and an increase in the rate of ammonium fluoride more than 120% leads to a decrease in the rate of desalinization. Carrying out the process at temperatures below 300 ° C sharply reduces the speed of the process, and an increase in temperature above 600 ° C leads to an increase in the residual content of silicon dioxide in the product.
Данный способ позвол ет расширитьThis method allows you to expand
сырьевую базу за счет возможности перера5 ботки золы на фторид алюмини , а такжеraw material base due to the possibility of recycling ash to aluminum fluoride, as well as
улучшить экологию за счет использовани improve the ecology by using
отходов теплоэлектростанций.waste of thermal power plants.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894671911A SU1668301A1 (en) | 1989-04-03 | 1989-04-03 | Method for processing alumosilicates to obtain aluminium fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894671911A SU1668301A1 (en) | 1989-04-03 | 1989-04-03 | Method for processing alumosilicates to obtain aluminium fluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1668301A1 true SU1668301A1 (en) | 1991-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894671911A SU1668301A1 (en) | 1989-04-03 | 1989-04-03 | Method for processing alumosilicates to obtain aluminium fluoride |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1668301A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001016386A1 (en) * | 1999-09-02 | 2001-03-08 | Westinghouse Electric Company Llc | Reclamation of metals like uranium from contaminated solids such as incinerator ash by fluorination and leaching |
-
1989
- 1989-04-03 SU SU894671911A patent/SU1668301A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № , кл. С 01 F 7/50,1970. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001016386A1 (en) * | 1999-09-02 | 2001-03-08 | Westinghouse Electric Company Llc | Reclamation of metals like uranium from contaminated solids such as incinerator ash by fluorination and leaching |
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