SG144902A1 - Method and apparatus for obtaining purified phosphoric acid from phosphoric acid aqueous solution containing plural metal ions - Google Patents
Method and apparatus for obtaining purified phosphoric acid from phosphoric acid aqueous solution containing plural metal ionsInfo
- Publication number
- SG144902A1 SG144902A1 SG200801052-2A SG2008010522A SG144902A1 SG 144902 A1 SG144902 A1 SG 144902A1 SG 2008010522 A SG2008010522 A SG 2008010522A SG 144902 A1 SG144902 A1 SG 144902A1
- Authority
- SG
- Singapore
- Prior art keywords
- phosphoric acid
- metal ions
- aqueous solution
- solution containing
- inorganic salt
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 24
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 12
- 229910021645 metal ion Inorganic materials 0.000 title abstract 10
- 239000007864 aqueous solution Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 3
- 229910017053 inorganic salt Inorganic materials 0.000 abstract 5
- 239000013078 crystal Substances 0.000 abstract 3
- 238000001704 evaporation Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 239000000706 filtrate Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000011877 solvent mixture Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Abstract
Method and apparatus for obtaining purified phosphoric acid from phosphoric acid aqueous solution containing plural metal ions A method for obtaining purified phosphoric acid from a phosphoric acid aqueous solution containing a plurality of metal ions includes: [1] crystallizing and coprecipitating that separate out an inorganic salt crystal from a phosphoric acid aqueous solution containing a plurality of metal ions and coprecipitate metal ions including: (a) mixing a phosphoric acid aqueous solution containing a plurality of metal ions with an inorganic salt aqueous solution; (b) separating out an inorganic salt crystal and coprecipitating simultaneously the metal ions by further mixing an organic poor solvent which is soluble in phosphoric acid and does not dissolve an inorganic salt with the above resultant mixture; and (c) solid-liquid separating by filtering the inorganic salt crystal containing the metal ions; and [2] evaporating that obtains purified phosphoric acid by evaporating an organic poor solvent and water in a filtrate obtained by the filtration, wherein the amount of metal ions dissolved in the phosphoric acid / organic poor solvent mixture in the separating is less than the amount of metal ions in the phosphoric acid solution used in the mixing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007028820A JP5242061B2 (en) | 2007-02-08 | 2007-02-08 | Method and apparatus for obtaining purified phosphoric acid from aqueous phosphoric acid solution containing a plurality of metal ions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG144902A1 true SG144902A1 (en) | 2008-08-28 |
Family
ID=39710888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG200801052-2A SG144902A1 (en) | 2007-02-08 | 2008-02-05 | Method and apparatus for obtaining purified phosphoric acid from phosphoric acid aqueous solution containing plural metal ions |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5242061B2 (en) |
| KR (1) | KR101410594B1 (en) |
| CN (1) | CN101239710B (en) |
| SG (1) | SG144902A1 (en) |
| TW (1) | TWI452010B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4927670B2 (en) * | 2007-09-07 | 2012-05-09 | 住友精密工業株式会社 | Etching waste liquid recycling method and recycling apparatus |
| CN101439849B (en) * | 2008-12-31 | 2010-12-08 | 孟庆深 | Comprehensive utilization process for waste aluminum etching solution |
| JP4742202B1 (en) * | 2010-05-25 | 2011-08-10 | エム・テクニック株式会社 | Method for producing precipitated substance with controlled amount of doping element |
| CN101857216B (en) * | 2010-06-29 | 2012-04-25 | 贵州川恒化工有限责任公司 | Method for producing industrial-grade phosphoric acid by extracting and purifying wet-process phosphoric acid |
| CN102502547A (en) * | 2011-10-10 | 2012-06-20 | 浙江兴达活性炭有限公司 | Process for removing impurity in phosphoric acid from activated carbon production by phosphoric acid method |
| CN102730656A (en) * | 2012-06-26 | 2012-10-17 | 瓮福（集团）有限责任公司 | Method for preparing phosphoric acid with high concentration by microwave heating of raffinate acid |
| KR102228425B1 (en) * | 2013-01-14 | 2021-03-16 | 술저 매니지멘트 에이지 | Multi-stage crystallisation process and apparatus to purify a compound |
| JP5962538B2 (en) * | 2013-02-27 | 2016-08-03 | Ｊｆｅエンジニアリング株式会社 | Water treatment method and apparatus |
| CN103979509B (en) * | 2014-04-28 | 2016-04-06 | 合肥茂腾环保科技有限公司 | A kind of method reclaiming phosphoric acid in waste aluminum etching solution |
| JP6268054B2 (en) * | 2014-07-09 | 2018-01-24 | 株式会社アナック | Method and apparatus for producing fertilizer by treating phosphoric acid mixed acid waste liquid |
| JP2016059855A (en) | 2014-09-17 | 2016-04-25 | 株式会社東芝 | Processing apparatus and method for reusing processing liquid |
| CN107089650B (en) * | 2017-05-27 | 2019-10-11 | 深圳市深投环保科技有限公司 | The preparation method of chemical polishing waste phosphoric acid processing method and monoammonium phosphate |
| CN108837551B (en) * | 2018-07-28 | 2024-04-02 | 湖南懋天世纪新材料有限公司 | Superfine ammonium paratungstate evaporation crystallization device and crystallization method |
| KR102816852B1 (en) * | 2018-11-12 | 2025-06-05 | 주식회사 동진쎄미켐 | Method for preparing purified phosphoric acid from used etchant |
| CN109942408A (en) * | 2019-03-24 | 2019-06-28 | 雒晓兵 | A kind of waste utilization method of useless etching mixed acid solution |
| CN110980675A (en) * | 2019-12-30 | 2020-04-10 | 南京乐透思环保科技有限公司 | Defluorination method of wet-process phosphoric acid |
| CN112499606B (en) * | 2021-01-20 | 2022-04-08 | 江苏电科环保有限公司 | Purification method of phosphoric acid waste liquid |
| WO2023034158A1 (en) * | 2021-09-03 | 2023-03-09 | Texas Tech University System | Preparation of ionic pharmaceutical cocrystals using solid and liquid components |
| CN114534501B (en) * | 2022-01-04 | 2024-09-06 | 中国原子能科学研究院 | Electrodialysis device and method for separating nitric acid and acetic acid |
| KR102847701B1 (en) * | 2025-03-20 | 2025-08-20 | (주)영진 | Manufacturing method of iron phosphate precursor using recycled waste phosphoric acid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1046346A1 (en) * | 1981-12-25 | 1983-10-07 | Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии | Method for regenerating waste fluorinaceous solutions |
| FR2629812A1 (en) * | 1988-04-12 | 1989-10-13 | Cerphos | Process for removing heavy metals, and especially cadmium, contained in phosphoric acid |
| JP2002153889A (en) * | 2000-11-20 | 2002-05-28 | National Institute Of Advanced Industrial & Technology | Treatment method of copper chloride-containing etching waste liquid, treatment agent and method of recovering copper |
| KR20060002636A (en) * | 2004-07-03 | 2006-01-09 | 주식회사 에이제이테크 | Recycling method of phosphate-containing waste etching solution |
| KR100655429B1 (en) * | 2005-11-10 | 2006-12-08 | 삼성전자주식회사 | Method and apparatus for regenerating phosphate solution, and apparatus for treating substrate using phosphate solution |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2327961A1 (en) * | 1975-10-15 | 1977-05-13 | Cerphos Ctre Etud Rech Phosph | PROCESS FOR THE PURIFICATION OF PHOSPHORIC ACID |
| JPS62123006A (en) * | 1985-11-22 | 1987-06-04 | Mitsui Toatsu Chem Inc | Method for removing cadmium from extracted residue solution or reextracted residue solution |
| JPS63270303A (en) * | 1987-04-24 | 1988-11-08 | Matsushita Electric Works Ltd | Regeneration of phosphoric acid |
| CN1039800C (en) * | 1996-01-18 | 1998-09-16 | 昆明理工大学 | Solvent sedimentation method for purifying wet method phosphoric acid |
| JP3382561B2 (en) * | 1999-06-28 | 2003-03-04 | 日本化学工業株式会社 | High purity phosphoric acid |
| TWI233157B (en) * | 2002-09-17 | 2005-05-21 | M Fsi Ltd | Regeneration process of etching solution, etching process, and etching system |
| JP4316946B2 (en) * | 2003-07-01 | 2009-08-19 | 日本化学工業株式会社 | High purity phosphoric acid and method for producing the same |
| JP4766858B2 (en) * | 2004-09-02 | 2011-09-07 | 日本リファイン株式会社 | Method and apparatus for recovering phosphoric acid from metal-containing mixed acid aqueous solution containing phosphoric acid and at least one acid other than phosphoric acid |
| JP2006315931A (en) * | 2005-05-16 | 2006-11-24 | Nippon Refine Kk | Method and apparatus for recovering phosphoric acid from metal ion-containing mixed acid aqueous solution containing phosphoric acid and at least one kind of acid except phosphoric acid |
| JP4873894B2 (en) | 2005-06-27 | 2012-02-08 | 下関三井化学株式会社 | Method for producing high purity purified phosphoric acid |
-
2007
- 2007-02-08 JP JP2007028820A patent/JP5242061B2/en active Active
-
2008
- 2008-01-30 TW TW097103530A patent/TWI452010B/en active
- 2008-02-02 CN CN2008100048058A patent/CN101239710B/en not_active Expired - Fee Related
- 2008-02-05 SG SG200801052-2A patent/SG144902A1/en unknown
- 2008-02-05 KR KR1020080011942A patent/KR101410594B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1046346A1 (en) * | 1981-12-25 | 1983-10-07 | Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии | Method for regenerating waste fluorinaceous solutions |
| FR2629812A1 (en) * | 1988-04-12 | 1989-10-13 | Cerphos | Process for removing heavy metals, and especially cadmium, contained in phosphoric acid |
| JP2002153889A (en) * | 2000-11-20 | 2002-05-28 | National Institute Of Advanced Industrial & Technology | Treatment method of copper chloride-containing etching waste liquid, treatment agent and method of recovering copper |
| KR20060002636A (en) * | 2004-07-03 | 2006-01-09 | 주식회사 에이제이테크 | Recycling method of phosphate-containing waste etching solution |
| KR100655429B1 (en) * | 2005-11-10 | 2006-12-08 | 삼성전자주식회사 | Method and apparatus for regenerating phosphate solution, and apparatus for treating substrate using phosphate solution |
Non-Patent Citations (2)
| Title |
|---|
| PURIFICATION OF PHOSPHORIC ACID FROM WASTE ACID ETCHANT USING LAYER MELT CRYSTALLIZATION * |
| RECOVERY OF PHOSPHORIC ACID IN WASTE ACID * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5242061B2 (en) | 2013-07-24 |
| CN101239710A (en) | 2008-08-13 |
| TW200846280A (en) | 2008-12-01 |
| KR101410594B1 (en) | 2014-06-20 |
| TWI452010B (en) | 2014-09-11 |
| KR20080074791A (en) | 2008-08-13 |
| CN101239710B (en) | 2013-07-10 |
| JP2008189537A (en) | 2008-08-21 |
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