CA2108785C - Method for the control of sodium oxalate levels in sodium aluminate solutions - Google Patents
Method for the control of sodium oxalate levels in sodium aluminate solutionsInfo
- Publication number
- CA2108785C CA2108785C CA002108785A CA2108785A CA2108785C CA 2108785 C CA2108785 C CA 2108785C CA 002108785 A CA002108785 A CA 002108785A CA 2108785 A CA2108785 A CA 2108785A CA 2108785 C CA2108785 C CA 2108785C
- Authority
- CA
- Canada
- Prior art keywords
- sodium
- oxalate
- sodium oxalate
- liquor
- concentration
- 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.)
- Expired - Lifetime
Links
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 title claims abstract description 108
- 229940039790 sodium oxalate Drugs 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 45
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910001388 sodium aluminate Inorganic materials 0.000 title claims abstract description 30
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 229940039748 oxalate Drugs 0.000 claims abstract description 51
- 239000002245 particle Substances 0.000 claims abstract description 25
- 238000004131 Bayer process Methods 0.000 claims abstract description 24
- 239000002244 precipitate Substances 0.000 claims abstract description 18
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 28
- 238000005406 washing Methods 0.000 claims description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 17
- 239000003518 caustics Substances 0.000 claims description 15
- 239000000706 filtrate Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 10
- 239000012065 filter cake Substances 0.000 claims description 9
- 230000029087 digestion Effects 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 45
- 239000013078 crystal Substances 0.000 description 24
- 238000001556 precipitation Methods 0.000 description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000011734 sodium Substances 0.000 description 7
- 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 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000004645 aluminates Chemical class 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 244000007645 Citrus mitis Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RREGISFBPQOLTM-UHFFFAOYSA-N alumane;trihydrate Chemical compound O.O.O.[AlH3] RREGISFBPQOLTM-UHFFFAOYSA-N 0.000 description 1
- -1 aluminate hydroxide Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 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
- C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
- C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
- C01F7/473—Removal of organic compounds, e.g. sodium oxalate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69525691A | 1991-05-03 | 1991-05-03 | |
| US695,256 | 1991-05-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2108785A1 CA2108785A1 (en) | 1992-11-04 |
| CA2108785C true CA2108785C (en) | 1998-06-16 |
Family
ID=24792272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002108785A Expired - Lifetime CA2108785C (en) | 1991-05-03 | 1992-05-01 | Method for the control of sodium oxalate levels in sodium aluminate solutions |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU650747B2 (pt) |
| BR (1) | BR9205965A (pt) |
| CA (1) | CA2108785C (pt) |
| IE (1) | IE68425B1 (pt) |
| WO (1) | WO1992019537A1 (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0662451B1 (en) * | 1994-01-07 | 1999-07-28 | Alcan International Limited | A process for crystallising out impurities from Bayer process liquors |
| FR2794449B1 (fr) * | 1999-06-04 | 2001-10-19 | Pechiney Aluminium | Procede d'epuration des liqueurs d'aluminate de sodium contenant de l'oxalate de sodium permettant de valoriser les residus |
| CN112047366A (zh) * | 2020-08-11 | 2020-12-08 | 中国铝业股份有限公司 | 一种以分解槽结疤脱除氧化铝分解母液中草酸钠的方法 |
| CN112939040A (zh) * | 2021-03-31 | 2021-06-11 | 中铝集团山西交口兴华科技股份有限公司 | 一种氧化铝及精细氧化铝生产流程中去除草酸钠的方法 |
| CN114408956B (zh) * | 2022-01-07 | 2023-08-22 | 中铝山东有限公司 | 一种高有机物铝酸钠溶液综合除碳方法和系统 |
| CN116282102B (zh) * | 2022-11-29 | 2024-11-08 | 山西华兴铝业有限公司 | 一种有机物脱除流程中添加种子的方法 |
| CN116768255A (zh) * | 2023-06-19 | 2023-09-19 | 滨州市沾化区汇宏新材料有限公司 | 铝酸钠溶液中有机物的脱除工艺和脱除装置 |
| CN120864539B (zh) * | 2025-07-03 | 2026-08-11 | 中铝山东有限公司 | 一种基于草酸盐滤饼制备高白氢氧化铝的方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2317226A1 (fr) * | 1975-07-07 | 1977-02-04 | Alcan Res & Dev | Perfectionnements a la production d'alumine |
| JPS5456098A (en) * | 1977-10-12 | 1979-05-04 | Nippon Light Metal Co | Method of producing crude aluminum hydrate particles |
| US4263261A (en) * | 1978-12-21 | 1981-04-21 | Sumitomo Aluminium Smelting Company, Limited | Method for the removal of impurities from sodium aluminate solution |
| GB2211832A (en) * | 1987-10-30 | 1989-07-12 | Commw Scient Ind Res Org | Bayer process liquor purification |
| AU613758B2 (en) * | 1988-06-03 | 1991-08-08 | Vereinigte Aluminium-Werke Aktiengesellschaft | Method for removing sodium oxalate from caustic aluminate liquors |
-
1992
- 1992-05-01 BR BR9205965A patent/BR9205965A/pt not_active IP Right Cessation
- 1992-05-01 WO PCT/CA1992/000188 patent/WO1992019537A1/en not_active Ceased
- 1992-05-01 CA CA002108785A patent/CA2108785C/en not_active Expired - Lifetime
- 1992-05-01 AU AU16642/92A patent/AU650747B2/en not_active Expired
- 1992-07-01 IE IE921423A patent/IE68425B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IE921423A1 (en) | 1992-11-04 |
| BR9205965A (pt) | 1995-03-01 |
| AU650747B2 (en) | 1994-06-30 |
| AU1664292A (en) | 1992-12-21 |
| IE68425B1 (en) | 1996-06-12 |
| WO1992019537A1 (en) | 1992-11-12 |
| CA2108785A1 (en) | 1992-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |