DE2037070A1 - Verfahren zur Herstellung von praktisch chromfreien Alkalialuminatlösungen - Google Patents
Verfahren zur Herstellung von praktisch chromfreien AlkalialuminatlösungenInfo
- Publication number
- DE2037070A1 DE2037070A1 DE19702037070 DE2037070A DE2037070A1 DE 2037070 A1 DE2037070 A1 DE 2037070A1 DE 19702037070 DE19702037070 DE 19702037070 DE 2037070 A DE2037070 A DE 2037070A DE 2037070 A1 DE2037070 A1 DE 2037070A1
- Authority
- DE
- Germany
- Prior art keywords
- chromium
- practically
- aluminate solutions
- alkali aluminate
- free alkali
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 239000003513 alkali Substances 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- 150000004645 aluminates Chemical class 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000011651 chromium Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 7
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 230000029087 digestion Effects 0.000 claims description 2
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 34
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 15
- 239000003518 caustics Substances 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 14
- 229910001570 bauxite Inorganic materials 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 235000011121 sodium hydroxide Nutrition 0.000 description 12
- 229910004298 SiO 2 Inorganic materials 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 9
- 229910021641 deionized water Inorganic materials 0.000 description 9
- 239000011734 sodium Substances 0.000 description 8
- 239000000725 suspension Substances 0.000 description 8
- 238000006418 Brown reaction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000470 constituent Substances 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 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
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/0613—Pretreatment of the minerals, e.g. grinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702037070 DE2037070A1 (de) | 1970-07-27 | 1970-07-27 | Verfahren zur Herstellung von praktisch chromfreien Alkalialuminatlösungen |
| IT51884/71A IT939337B (it) | 1970-07-27 | 1971-07-24 | Procedimento per la produzione di soluzioni di alluminato alcalino praticamete esenti da cromo |
| GB3504671A GB1354540A (en) | 1970-07-27 | 1971-07-26 | Preparation of alkali metal aluminate solutions |
| FR7127262A FR2099609B1 (enExample) | 1970-07-27 | 1971-07-26 | |
| BE770486A BE770486A (fr) | 1970-07-27 | 1971-07-26 | Procede de preparation de solutions d'aluminates alcalins pratiquement exemptes de chrome |
| NL7110334A NL7110334A (enExample) | 1970-07-27 | 1971-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702037070 DE2037070A1 (de) | 1970-07-27 | 1970-07-27 | Verfahren zur Herstellung von praktisch chromfreien Alkalialuminatlösungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2037070A1 true DE2037070A1 (de) | 1972-02-03 |
Family
ID=5777946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702037070 Pending DE2037070A1 (de) | 1970-07-27 | 1970-07-27 | Verfahren zur Herstellung von praktisch chromfreien Alkalialuminatlösungen |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE770486A (enExample) |
| DE (1) | DE2037070A1 (enExample) |
| FR (1) | FR2099609B1 (enExample) |
| GB (1) | GB1354540A (enExample) |
| IT (1) | IT939337B (enExample) |
| NL (1) | NL7110334A (enExample) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE61C (de) * | 1877-07-05 | R. KRAUSCHITZ zu Eichenbarleben bei Magdeburg | Kombinirte Verdampf-Apparate und Filter für Rübensäfte |
-
1970
- 1970-07-27 DE DE19702037070 patent/DE2037070A1/de active Pending
-
1971
- 1971-07-24 IT IT51884/71A patent/IT939337B/it active
- 1971-07-26 BE BE770486A patent/BE770486A/xx unknown
- 1971-07-26 GB GB3504671A patent/GB1354540A/en not_active Expired
- 1971-07-26 FR FR7127262A patent/FR2099609B1/fr not_active Expired
- 1971-07-27 NL NL7110334A patent/NL7110334A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1354540A (en) | 1974-06-05 |
| IT939337B (it) | 1973-02-10 |
| BE770486A (fr) | 1971-12-01 |
| FR2099609B1 (enExample) | 1975-04-18 |
| NL7110334A (enExample) | 1972-01-31 |
| FR2099609A1 (enExample) | 1972-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |