ATA207794A - METHOD FOR PROCESSING ZINC / IRONIC OLD ACIDS - Google Patents
METHOD FOR PROCESSING ZINC / IRONIC OLD ACIDSInfo
- Publication number
- ATA207794A ATA207794A AT207794A AT207794A ATA207794A AT A207794 A ATA207794 A AT A207794A AT 207794 A AT207794 A AT 207794A AT 207794 A AT207794 A AT 207794A AT A207794 A ATA207794 A AT A207794A
- Authority
- AT
- Austria
- Prior art keywords
- extraction
- acids
- waste
- liquid
- ironic
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 6
- 239000002253 acid Substances 0.000 title abstract 5
- 150000007513 acids Chemical class 0.000 title abstract 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title 1
- 239000011701 zinc Substances 0.000 title 1
- 229910052725 zinc Inorganic materials 0.000 title 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 4
- 238000000605 extraction Methods 0.000 abstract 4
- 239000002699 waste material Substances 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- 238000000638 solvent extraction Methods 0.000 abstract 2
- 229910021577 Iron(II) chloride Inorganic materials 0.000 abstract 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- 239000003463 adsorbent Substances 0.000 abstract 1
- 238000009713 electroplating Methods 0.000 abstract 1
- 238000005246 galvanizing Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 238000000622 liquid--liquid extraction Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000005554 pickling Methods 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 239000011592 zinc chloride Substances 0.000 abstract 1
- 235000005074 zinc chloride Nutrition 0.000 abstract 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 1
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract 1
- 239000011686 zinc sulphate Substances 0.000 abstract 1
- 235000009529 zinc sulphate Nutrition 0.000 abstract 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
A process for working up waste acids (pickling liquors) from hot galvanizing plants and electroplating operations is described. These acids contain essentially Zn2+, Fe2+, Fe3+ and free hydrochloric acid. The purpose of the process is to produce the two main metal components Zn2+ as ZnCl2 or ZnSO4 and Fe2+/Fe3+ as FeCl2/FeCl3 separately in a concentration higher than the starting concentration and/or in a particular purity. The process used for this purpose is solvent extraction (liquid-liquid extraction) in a mixer-settler plant. Before the waste acid is subjected to extraction, it should be filtered through suitable adsorbents to remove surfactants and, subsequently, Fe3+ should be reduced to Fe2+. The extraction is carried out in two stages: in the first process section A (Figure 1) Zn2+ is removed from the waste acid and Fe2+ is removed in the second process section B (Figure 2). Each extraction stage is followed by a strip (reextraction). In this way, the ion exchanger is regenerated at the same time and can then be reused for the respective extraction. <IMAGE>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT207794A AT400928B (en) | 1994-11-09 | 1994-11-09 | Process for working up waste acids containing zinc/iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT207794A AT400928B (en) | 1994-11-09 | 1994-11-09 | Process for working up waste acids containing zinc/iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA207794A true ATA207794A (en) | 1995-09-15 |
| AT400928B AT400928B (en) | 1996-04-25 |
Family
ID=3527279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT207794A AT400928B (en) | 1994-11-09 | 1994-11-09 | Process for working up waste acids containing zinc/iron |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT400928B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1011619A3 (en) * | 1997-12-16 | 1999-11-09 | Sidmar Nv | PROCESS FOR TREATING contaminated FERRUGINOUS SLIB. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3338258A1 (en) * | 1983-10-21 | 1985-05-02 | Hamm Chemie GmbH, 4100 Duisburg | METHOD FOR TREATING IRON AND ZINC-CONTAINING SALT ACID |
| US4652352A (en) * | 1985-11-04 | 1987-03-24 | Saieva Carl J | Process and apparatus for recovering metals from dilute solutions |
| AT398986B (en) * | 1989-02-06 | 1995-02-27 | Prior Eng Ag | METHOD FOR THE PROCESSING OF ACIDS, FE-CONTAINING SOLUTIONS, IN PARTICULAR WASTE STICKING SOLUTIONS |
| US5192418A (en) * | 1991-07-08 | 1993-03-09 | Bethlehem Steel Corporation | Metal recovery method and system for electroplating wastes |
| DE4131793A1 (en) * | 1991-09-24 | 1993-03-25 | Metallgesellschaft Ag | METHOD AND DEVICE FOR REGENERATING REMEDIES |
-
1994
- 1994-11-09 AT AT207794A patent/AT400928B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AT400928B (en) | 1996-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties | ||
| ELJ | Ceased due to non-payment of the annual fee |