JPS56125205A - Recovering and treating method of waste hydrochloric acid - Google Patents
Recovering and treating method of waste hydrochloric acidInfo
- Publication number
- JPS56125205A JPS56125205A JP2880680A JP2880680A JPS56125205A JP S56125205 A JPS56125205 A JP S56125205A JP 2880680 A JP2880680 A JP 2880680A JP 2880680 A JP2880680 A JP 2880680A JP S56125205 A JPS56125205 A JP S56125205A
- Authority
- JP
- Japan
- Prior art keywords
- hydrochloric acid
- recover
- residue
- waste hydrochloric
- fecl
- 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.)
- Pending
Links
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title abstract 14
- 239000002699 waste material Substances 0.000 title abstract 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910021556 Chromium(III) chloride Inorganic materials 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 abstract 1
- 239000011636 chromium(III) chloride Substances 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000000895 extractive distillation Methods 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 239000003350 kerosene Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 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
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 abstract 1
- -1 tributyl phosphate Chemical compound 0.000 abstract 1
Landscapes
- Physical Water Treatments (AREA)
- Removal Of Specific Substances (AREA)
Abstract
PURPOSE: To recover concentrate hydrochloric acid, FeCl3 and Cr(OH)3, by oxidizing Fe and Cr contained in a waste hydrochloric acid, extracting the oxidized Fe and Cr with a specific solvent, and extracting the resultant extract back with water, and distilling the extraction residue through extraction.
CONSTITUTION: An oxidizing agent, e.g. O2 or air, is allowed to react with a waste hydrochloric acid containing Fe and Cr to oxidize the Fe2+ to Fe3+. Hydrochloric acid is then added to the oxidation solution to increase the hydrochloric acid concentration to 6M/l or higher. The Fe3+ is then extracted with a solvent consisting of 30W100vol% neutral phosphate, e.g. tributyl phosphate, and 70W0vol% diluent, e.g. kerosine, as a HFeCl4 complex. The resultant extract is extracted with water back to recover the complex as a HCl-FeCl3 mixture. The exraction residue is then subjected to the extractive distillation while circulating a concentrated solution of CrCl3 to recover concentrated hydrochloric acid. On the other hand, chlorides which are obtained as a distillation residue and consist of Cr essentially are neutralized with an alkali and recovered as Cr(OH)3.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2880680A JPS56125205A (en) | 1980-03-06 | 1980-03-06 | Recovering and treating method of waste hydrochloric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2880680A JPS56125205A (en) | 1980-03-06 | 1980-03-06 | Recovering and treating method of waste hydrochloric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125205A true JPS56125205A (en) | 1981-10-01 |
Family
ID=12258658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2880680A Pending JPS56125205A (en) | 1980-03-06 | 1980-03-06 | Recovering and treating method of waste hydrochloric acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125205A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59196793A (en) * | 1983-04-20 | 1984-11-08 | Nishimura Watanabe Chiyuushiyutsu Kenkyusho:Kk | Recovery of liquid etchant |
| CN105776399A (en) * | 2016-04-29 | 2016-07-20 | 苏忠 | Extracting agent applicable to treating coal chemical engineering wastewater |
| CN105797604A (en) * | 2016-05-25 | 2016-07-27 | 王金明 | Preparation method of hydrochloric acid concentration osmosis film |
| CN105964153A (en) * | 2016-05-25 | 2016-09-28 | 王金明 | Method for preparing hydrochloric acid concentration membrane |
| CN113277474A (en) * | 2021-07-07 | 2021-08-20 | 福建富仕新材料有限责任公司 | Preparation method of hydrogen chloride |
-
1980
- 1980-03-06 JP JP2880680A patent/JPS56125205A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59196793A (en) * | 1983-04-20 | 1984-11-08 | Nishimura Watanabe Chiyuushiyutsu Kenkyusho:Kk | Recovery of liquid etchant |
| JPS637115B2 (en) * | 1983-04-20 | 1988-02-15 | Nishimura Watanabe Chushutsu Kenkyusho Kk | |
| CN105776399A (en) * | 2016-04-29 | 2016-07-20 | 苏忠 | Extracting agent applicable to treating coal chemical engineering wastewater |
| CN105797604A (en) * | 2016-05-25 | 2016-07-27 | 王金明 | Preparation method of hydrochloric acid concentration osmosis film |
| CN105964153A (en) * | 2016-05-25 | 2016-09-28 | 王金明 | Method for preparing hydrochloric acid concentration membrane |
| CN113277474A (en) * | 2021-07-07 | 2021-08-20 | 福建富仕新材料有限责任公司 | Preparation method of hydrogen chloride |
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