TW200618850A - Method of separating and recovering phosphoric acid from mixed acid waste liquid containing acetic, nitric and phosphoric acids - Google Patents
Method of separating and recovering phosphoric acid from mixed acid waste liquid containing acetic, nitric and phosphoric acidsInfo
- Publication number
- TW200618850A TW200618850A TW094134047A TW94134047A TW200618850A TW 200618850 A TW200618850 A TW 200618850A TW 094134047 A TW094134047 A TW 094134047A TW 94134047 A TW94134047 A TW 94134047A TW 200618850 A TW200618850 A TW 200618850A
- Authority
- TW
- Taiwan
- Prior art keywords
- acids
- nitric
- recovering
- waste liquid
- separation
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 6
- 239000002253 acid Substances 0.000 title abstract 5
- 235000011007 phosphoric acid Nutrition 0.000 title abstract 5
- 239000007788 liquid Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 3
- 239000002699 waste material Substances 0.000 title abstract 3
- 150000003016 phosphoric acids Chemical class 0.000 title abstract 2
- 238000000926 separation method Methods 0.000 abstract 5
- 150000007513 acids Chemical class 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 238000000605 extraction Methods 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 238000004945 emulsification Methods 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Fertilizers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
To provide a method capable of highly efficiently, selectively separating and recovering phosphoric acid from a mixed acid waste liquid containing acetic, nitric and phosphoric acids even in a practical large scale production by suppressing the emulsification of an oil phase with a water phase in a settling state in a separation process to enable the circulating use of an extractant solution sufficiently. The separating/recovering method comprises an extraction process for selectively dissolving acetic and nitric acids in the extractant solution to extract by mixing the waste liquid containing those acids with the extractant solution containing trialkyl phosphate, a recovery process for recovering phosphoric acid from a residual liquid left by the above process, and a separation process for bringing the obtained acetic/nitric acids-containing extractant solution into contact with a salt-containing water for separation to dissolve and transfer their acids into the above water for separation. The extractant solution can circularly be used by feeding back the oil-phase solution obtained from the separation process to the extraction process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004350135A JP4397802B2 (en) | 2004-12-02 | 2004-12-02 | Method for separating and recovering phosphoric acid from acetic acid-nitric acid-phosphoric acid mixed acid waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW200618850A true TW200618850A (en) | 2006-06-16 |
Family
ID=36662969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW094134047A TW200618850A (en) | 2004-12-02 | 2005-09-29 | Method of separating and recovering phosphoric acid from mixed acid waste liquid containing acetic, nitric and phosphoric acids |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4397802B2 (en) |
| KR (1) | KR20060061883A (en) |
| CN (1) | CN1781842B (en) |
| TW (1) | TW200618850A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI461354B (en) * | 2009-11-10 | 2014-11-21 | Sanwa Yuka Kogyo Co Ltd | Separation and Recovery of Phosphoric Acid from Acetic Acid - Nitric Acid - Phosphate Mixed Acid Waste |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100738506B1 (en) * | 2006-01-23 | 2007-07-11 | 대일개발 주식회사 | A method for separating and recovering each acid from the mixed waste acid solution during the semiconductor and LCD etching process |
| KR100738507B1 (en) * | 2006-01-24 | 2007-07-11 | 대일개발 주식회사 | A method for separating and recovering each acid from the mixed waste acid solution in the electronic industry etching process |
| KR100831060B1 (en) | 2006-12-29 | 2008-05-20 | 대일개발 주식회사 | Recycling Method of Semiconductor Etching Waste Containing Silicon |
| JP5275727B2 (en) * | 2008-09-01 | 2013-08-28 | 三和油化工業株式会社 | Method for separating and recovering phosphoric acid from acetic acid-nitric acid-phosphoric acid mixed acid waste liquid |
| JP5275767B2 (en) * | 2008-12-03 | 2013-08-28 | 三和油化工業株式会社 | Method for recovering phosphoric acid from which nitric acid and dissolved metal have been removed from phosphoric acid mixed acid waste liquid |
| KR101667418B1 (en) * | 2009-12-15 | 2016-10-18 | 산와 유카 고교 가부시키가이샤 | Method for separating and recovering phosphoric acid from mixing acid waste of acetic acid-nitric acid-phosphoric acid |
| CN102167415B (en) * | 2010-02-26 | 2015-04-01 | 三和油化工业株式会社 | Method for separating and recovering phosphoric acid from acetic acid-nitric acid-phosphoric acid series mixed acid waste liquor |
| JP2015136641A (en) * | 2014-01-21 | 2015-07-30 | 太平洋セメント株式会社 | Method and apparatus for treating phosphoric acid waste liquid |
| CN108640093B (en) * | 2018-06-22 | 2021-11-09 | 湖北永绍科技股份有限公司 | Separation and purification process of mixed waste acid solution |
| CN108892116A (en) * | 2018-06-22 | 2018-11-27 | 湖北永绍科技股份有限公司 | A kind of separation method of phosphoric acid, acetic acid and nitric acid mixed acid |
| CN109232233A (en) * | 2018-10-30 | 2019-01-18 | 四川高绿平环境科技有限公司 | A kind of system and method handling the mixed acid containing phosphoric acid, nitric acid and acetic acid |
| KR102756942B1 (en) * | 2019-10-31 | 2025-01-17 | 한국전력공사 | Continuous multi-stage treatment apparatus for separating and recovering phosphoric acid from mixed waste acid and as the same method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109213A (en) | 1979-02-10 | 1980-08-22 | Nippon Soretsukusu Kk | Recovering phosphate ion |
| JP2004160292A (en) * | 2002-11-11 | 2004-06-10 | Hayaji Shibata | Method for separating and recovering phosphoric acid from acetic acid-nitric acid-phosphoric acid type mixed acid waste liquid |
-
2004
- 2004-12-02 JP JP2004350135A patent/JP4397802B2/en not_active Expired - Fee Related
-
2005
- 2005-09-29 TW TW094134047A patent/TW200618850A/en unknown
- 2005-10-14 KR KR1020050097022A patent/KR20060061883A/en not_active Ceased
- 2005-10-17 CN CN2005101134822A patent/CN1781842B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI461354B (en) * | 2009-11-10 | 2014-11-21 | Sanwa Yuka Kogyo Co Ltd | Separation and Recovery of Phosphoric Acid from Acetic Acid - Nitric Acid - Phosphate Mixed Acid Waste |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060061883A (en) | 2006-06-08 |
| CN1781842A (en) | 2006-06-07 |
| JP2006160534A (en) | 2006-06-22 |
| JP4397802B2 (en) | 2010-01-13 |
| CN1781842B (en) | 2011-01-12 |
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