CN100532263C - Treatment method for filtering white residue in production of alumina by mixture combination process - Google Patents
Treatment method for filtering white residue in production of alumina by mixture combination process Download PDFInfo
- Publication number
- CN100532263C CN100532263C CNB2007101219088A CN200710121908A CN100532263C CN 100532263 C CN100532263 C CN 100532263C CN B2007101219088 A CNB2007101219088 A CN B2007101219088A CN 200710121908 A CN200710121908 A CN 200710121908A CN 100532263 C CN100532263 C CN 100532263C
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- CN
- China
- Prior art keywords
- white residue
- filter
- production
- red mud
- silicon slag
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 39
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- 239000000203 mixture Substances 0.000 title abstract description 4
- 238000001914 filtration Methods 0.000 title description 3
- 239000012065 filter cake Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- 238000005245 sintering Methods 0.000 abstract description 12
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 4
- 229910052710 silicon Inorganic materials 0.000 abstract 4
- 239000010703 silicon Substances 0.000 abstract 4
- JCCZVLHHCNQSNM-UHFFFAOYSA-N [Na][Si] Chemical compound [Na][Si] JCCZVLHHCNQSNM-UHFFFAOYSA-N 0.000 abstract 1
- 230000008520 organization Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000009991 scouring Methods 0.000 abstract 1
- 238000004131 Bayer process Methods 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 3
- 229910001388 sodium aluminate Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 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
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention relates to a method for processing silicon slag of filters in production of aluminum oxide by the mixed combination method. The invention is characterized in that alkaline red mud is used to scour filter cakes of a silicon slag filter, and then the slurry formed after the scouring is sent to the raw slurry preparing process for proportioning. The method of the invention solves the treatment issue of silicon slag of the sintering method, relatively improves the capacity of the red mud filter, prevents influence of silicon slag of the sintering method on the precipitation tank of the Bayer method, reduces influence of sodium-silicon slag on composition of the raw slurry, and is conducive to production organization and also to sintering of large-kiln clinkers.
Description
Technical field
The present invention relates to the treatment process of filter white residue in a kind of mixed combining method alumina producing.
Background technology
Sintering process and Bayer process two big operations are arranged in the mixed combining method aluminum oxide production process, and wherein sintering process comprises that the desiliconization of the burning till of preparation, charge pulp, grog stripping separation and washing system, the sodium aluminate solution of ore charge pulp filters refining, the decomposition of sodium aluminate solution and the roasting of aluminium hydroxide; Bayer process is produced the refining decomposition that reaches separating, washing and sodium aluminate solution of preparation, stripping, filtration that comprises ore pulp.Bayer process process red mud and sintering process white residue must turn back to the charge pulp preparation process and prepare burden, sintering process white residue filter cake and Bayer process red mud are sent to slip preparation (wherein the mixture of Bayer process red mud and carbon mother liquid is the alkali red mud) after all mixing with carbon mother liquid at present, cause carbon mother liquid allotment difficulty like this, white residue and alkali red mud are carried to be restricted, therefore now be sent to Bayer process washing procedure and Bayer process red mud after the white residue water mixes in the flow process and carry out together that secondary filtration is laggard goes into flow process, cause Bayer process filter production capacity to reduce easily, muddy phenomenon appears running in subsider easily, and it is unfavorable to bring to production.For this to the white residue filter dash the bricklayer plant transform imperative.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provides can effectively solve sintering process in the existing mixed combining method production process and produce white residue in the alumina process and make water or carbon mother liquid break through the filter white residue and bring the treatment process of filter white residue in the mixed combining method alumina producing of drawback to production.
The objective of the invention is to be achieved through the following technical solutions.
The treatment process of filter white residue in a kind of mixed combining method alumina producing is characterized in that it being to utilize the alkali red mud to wash away the filter cake of white residue filter, and the slurry that will wash away back formation again is sent to the charge pulp preparation process and prepares burden.
The treatment process of filter white residue in a kind of mixed combining method alumina producing of the present invention, the original water of sintering process white residue filter towards the mud mode change into dash with the alkali red mud after, directly send the charge pulp preparation process to prepare burden, efficiently solve the whereabouts problem of sintering process white residue, improved the production capacity of red mud filter, stopped of the influence of sintering process white residue the Bayer process subsider.
Embodiment
The treatment process of filter white residue in a kind of mixed combining method alumina producing utilizes the alkali red mud to wash away the filter cake of white residue filter, and the slurry that will wash away back formation again is sent to the charge pulp preparation process and prepares burden.
Its concrete embodiment is that the alkali red mud is drained into the white residue filter, is used for washing away the filter cake of white residue filter, and the mode that original water or carbon mother liquid are washed away white residue changes into the alkali red mud washes away, and directly is sent to the charge pulp preparation process then and prepares burden.Improved the production capacity of red mud filter; Stopped of the influence of sintering process white residue to the Bayer process subsider; Reduced of the influence of sodium white residue, produced good economic benefit after the enforcement the charge pulp composition.
Claims (1)
1. the treatment process of filter white residue in the mixed combining method alumina producing is characterized in that it being to utilize the alkali red mud to wash away the filter cake of white residue filter, will wash away slurry that the back forms again and be sent to the charge pulp preparation process and prepare burden.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101219088A CN100532263C (en) | 2007-09-18 | 2007-09-18 | Treatment method for filtering white residue in production of alumina by mixture combination process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101219088A CN100532263C (en) | 2007-09-18 | 2007-09-18 | Treatment method for filtering white residue in production of alumina by mixture combination process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101157469A CN101157469A (en) | 2008-04-09 |
| CN100532263C true CN100532263C (en) | 2009-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101219088A Active CN100532263C (en) | 2007-09-18 | 2007-09-18 | Treatment method for filtering white residue in production of alumina by mixture combination process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100532263C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103848452B (en) * | 2014-02-25 | 2015-10-07 | 湖南中大冶金设计有限公司 | The Simple treatment method of Bayer process red mud and silica residue in sinter process in producing alumina through series process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4994244A (en) * | 1989-01-31 | 1991-02-19 | Alcan International Limited | Process for producing alumina from bauxite |
| RU2015107C1 (en) * | 1991-12-13 | 1994-06-30 | Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" | Method for processing nepheline |
| CN1241533A (en) * | 1999-07-05 | 2000-01-19 | 中国长城铝业公司中州铝厂 | Intensified sintering process for alumina production |
| RU2181695C2 (en) * | 1999-08-18 | 2002-04-27 | Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" | Method of processing of bauxites into alumina |
| CN1775683A (en) * | 2005-11-25 | 2006-05-24 | 中国铝业股份有限公司 | Method for diluting bayer process stripping ore pulp for alumina production by mixed joint process |
-
2007
- 2007-09-18 CN CNB2007101219088A patent/CN100532263C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4994244A (en) * | 1989-01-31 | 1991-02-19 | Alcan International Limited | Process for producing alumina from bauxite |
| RU2015107C1 (en) * | 1991-12-13 | 1994-06-30 | Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" | Method for processing nepheline |
| CN1241533A (en) * | 1999-07-05 | 2000-01-19 | 中国长城铝业公司中州铝厂 | Intensified sintering process for alumina production |
| RU2181695C2 (en) * | 1999-08-18 | 2002-04-27 | Акционерное общество открытого типа "Всероссийский алюминиево-магниевый институт" | Method of processing of bauxites into alumina |
| CN1775683A (en) * | 2005-11-25 | 2006-05-24 | 中国铝业股份有限公司 | Method for diluting bayer process stripping ore pulp for alumina production by mixed joint process |
Non-Patent Citations (6)
| Title |
|---|
| 并行法氧化铝生产新工艺-我国混联法氧化铝生产工艺的发展方向. 尹中林，顾松青.有色金属，第7期. 2001 |
| 并行法氧化铝生产新工艺-我国混联法氧化铝生产工艺的发展方向. 尹中林，顾松青.有色金属，第7期. 2001 * |
| 联合法生产氧化铝基础知识. 《联合法生产氧化铝》编写组编，第5章,第7章,第9章,第11章. 1975 |
| 联合法生产氧化铝基础知识. 《联合法生产氧化铝》编写组编，第5章,第7章,第9章,第11章. 1975 * |
| 选矿拜耳法氧化铝生产过程危害评价与对策. 吴建敏.中国安全生产科学技术，第1卷第6期. 2005 |
| 选矿拜耳法氧化铝生产过程危害评价与对策. 吴建敏.中国安全生产科学技术，第1卷第6期. 2005 * |
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| Publication number | Publication date |
|---|---|
| CN101157469A (en) | 2008-04-09 |
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