JPH0260605B2 - - Google Patents
Info
- Publication number
- JPH0260605B2 JPH0260605B2 JP61092432A JP9243286A JPH0260605B2 JP H0260605 B2 JPH0260605 B2 JP H0260605B2 JP 61092432 A JP61092432 A JP 61092432A JP 9243286 A JP9243286 A JP 9243286A JP H0260605 B2 JPH0260605 B2 JP H0260605B2
- Authority
- JP
- Japan
- Prior art keywords
- polyacrylic acid
- crystals
- alumina trihydrate
- sodium oxalate
- mol
- 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
Links
- 239000013078 crystal Substances 0.000 claims description 78
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 74
- 150000004684 trihydrates Chemical class 0.000 claims description 70
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims description 56
- 229940039790 sodium oxalate Drugs 0.000 claims description 55
- 238000004131 Bayer process Methods 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 40
- 229920002125 Sokalan® Polymers 0.000 claims description 30
- 239000000178 monomer Substances 0.000 claims description 29
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 27
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 26
- 238000002425 crystallisation Methods 0.000 claims description 25
- 230000008025 crystallization Effects 0.000 claims description 25
- 238000001556 precipitation Methods 0.000 claims description 22
- 239000004584 polyacrylic acid Substances 0.000 claims description 20
- 239000013081 microcrystal Substances 0.000 claims description 13
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- NLVXSWCKKBEXTG-UHFFFAOYSA-M ethenesulfonate Chemical compound [O-]S(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-M 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 6
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- MVYVKSBVZFBBPL-UHFFFAOYSA-N 2-(prop-2-enoylamino)propane-1-sulfonic acid Chemical compound OS(=O)(=O)CC(C)NC(=O)C=C MVYVKSBVZFBBPL-UHFFFAOYSA-N 0.000 claims description 5
- 229920002554 vinyl polymer Polymers 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- AAYRWMCIKCRHIN-UHFFFAOYSA-N propane-1-sulfonic acid;prop-2-enamide Chemical compound NC(=O)C=C.CCCS(O)(=O)=O AAYRWMCIKCRHIN-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 description 38
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 32
- 229940039748 oxalate Drugs 0.000 description 26
- 238000010899 nucleation Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000002776 aggregation Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000005054 agglomeration Methods 0.000 description 7
- 229910001570 bauxite Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 235000002639 sodium chloride Nutrition 0.000 description 7
- 238000000635 electron micrograph Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229920006318 anionic polymer Polymers 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 239000003518 caustics Substances 0.000 description 4
- 238000000975 co-precipitation Methods 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 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 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000004645 aluminates Chemical class 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 230000006911 nucleation Effects 0.000 description 3
- 150000003891 oxalate salts Chemical class 0.000 description 3
- 235000006408 oxalic acid Nutrition 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010900 secondary nucleation Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- -1 2-AMPS Chemical compound 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229940048053 acrylate Drugs 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZCLVNIZJEKLGFA-UHFFFAOYSA-H bis(4,5-dioxo-1,3,2-dioxalumolan-2-yl) oxalate Chemical compound [Al+3].[Al+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O ZCLVNIZJEKLGFA-UHFFFAOYSA-H 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72654485A | 1985-04-24 | 1985-04-24 | |
| US726544 | 1985-04-24 | ||
| US797717 | 1985-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61295230A JPS61295230A (ja) | 1986-12-26 |
| JPH0260605B2 true JPH0260605B2 (fr) | 1990-12-17 |
Family
ID=24919035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61092432A Granted JPS61295230A (ja) | 1985-04-24 | 1986-04-23 | バイヤ−法におけるアルミナ三水化物沈殿を改善する方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61295230A (fr) |
-
1986
- 1986-04-23 JP JP61092432A patent/JPS61295230A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61295230A (ja) | 1986-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4608237A (en) | Use of polymers in alumina precipitation in the Bayer process of bauxite beneficiation | |
| US8216534B2 (en) | Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same | |
| US5665244A (en) | Reduction of impurities in bayer process alumina trihydrate | |
| AU648215B2 (en) | Process for the removal of sodium oxalate from solutions of sodium aluminate from the Bayer cycle | |
| EP0465055B1 (fr) | Modification de la croissance de cristaux | |
| EP0602900B1 (fr) | Modification des cristaux de trihydrate dans le procédé Bayer | |
| CA2018155A1 (fr) | Additif pour la croissance cristalline de l'alumine | |
| JPS62148318A (ja) | 要求に応じて調整される４μ未満のメジアン直径を持つ高純度の水酸化アルミニウムを高生産率で製造するための方法 | |
| DE10119685A1 (de) | Entfernung nicht-wasserlöslicher Substanzen aus Metallaufschlüssen | |
| JPH0260605B2 (fr) | ||
| JPH0822738B2 (ja) | 硫酸根を含む塩基性ポリ（塩化アルミニウム）溶液の製造方法 | |
| AU613758B2 (en) | Method for removing sodium oxalate from caustic aluminate liquors | |
| JP3325689B2 (ja) | 金属含有排水の処理方法 | |
| EP0211338A2 (fr) | Procédé de préparation d'oxyde d'aluminium | |
| AU1664292A (en) | Method for controlling sodium oxalate levels in sodium aluminate solutions | |
| JP3316863B2 (ja) | 赤泥の分離方法 | |
| AU760072B2 (en) | Method for purifying sodium aluminate liquors containing sodium oxalate | |
| EP0662451B1 (fr) | Procédé d'élimination d'impuretés par crystallisation des liquides du procédé Bayer | |
| US2378296A (en) | Manufacture of purified crystalline products | |
| GB2211832A (en) | Bayer process liquor purification |