ATE83754T1 - Verfahren zur wiedergewinnung von chromanhydrid aus erschoepften waessrigen chromplattierungsbaedern unter verwendung des gewonnenen chroms. - Google Patents
Verfahren zur wiedergewinnung von chromanhydrid aus erschoepften waessrigen chromplattierungsbaedern unter verwendung des gewonnenen chroms.Info
- Publication number
- ATE83754T1 ATE83754T1 AT88904607T AT88904607T ATE83754T1 AT E83754 T1 ATE83754 T1 AT E83754T1 AT 88904607 T AT88904607 T AT 88904607T AT 88904607 T AT88904607 T AT 88904607T AT E83754 T1 ATE83754 T1 AT E83754T1
- Authority
- AT
- Austria
- Prior art keywords
- chromium
- pct
- recovered
- plating baths
- chromium plating
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052804 chromium Inorganic materials 0.000 title abstract 5
- 239000011651 chromium Substances 0.000 title abstract 5
- 238000007747 plating Methods 0.000 title abstract 3
- -1 CHROMAN HYDRIDE Chemical class 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 230000003113 alkalizing effect Effects 0.000 abstract 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 239000011696 chromium(III) sulphate Substances 0.000 abstract 1
- 235000015217 chromium(III) sulphate Nutrition 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 235000010269 sulphur dioxide Nutrition 0.000 abstract 1
- 239000004291 sulphur dioxide Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
- C14C3/06—Mineral tanning using chromium compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
- C01G37/033—Chromium trioxide; Chromic acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/08—Chromium sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/14—Chromates; Bichromates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Removal Of Specific Substances (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8819916A IT1216507B (it) | 1988-03-23 | 1988-03-23 | Procedimento per il recupero di anidride cromica da soluzioni acquose esauste di bagni di cromatura con valorizzazione del cromo recuperato. |
| EP88904607A EP0406234B1 (de) | 1988-03-23 | 1988-05-24 | Verfahren zur wiedergewinnung von chromanhydrid aus erschöpften wässrigen chromplattierungsbädern unter verwendung des gewonnenen chroms |
| PCT/IT1988/000038 WO1989009188A1 (en) | 1988-03-23 | 1988-05-24 | Process for recovering chromic anhydride from exhausted aqueous chromium plating bath solutions with exploitation of the recovered chromium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE83754T1 true ATE83754T1 (de) | 1993-01-15 |
Family
ID=11162313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT88904607T ATE83754T1 (de) | 1988-03-23 | 1988-05-24 | Verfahren zur wiedergewinnung von chromanhydrid aus erschoepften waessrigen chromplattierungsbaedern unter verwendung des gewonnenen chroms. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5112583A (de) |
| EP (1) | EP0406234B1 (de) |
| AT (1) | ATE83754T1 (de) |
| AU (1) | AU1792388A (de) |
| DE (1) | DE3876999T2 (de) |
| IT (1) | IT1216507B (de) |
| WO (1) | WO1989009188A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5571489A (en) * | 1995-01-27 | 1996-11-05 | Illinois Institute Of Technology | Process for chromium recovery from aqueous solutions |
| US6063252A (en) * | 1997-08-08 | 2000-05-16 | Raymond; John L. | Method and apparatus for enriching the chromium in a chromium plating bath |
| CN108586766A (zh) * | 2018-05-09 | 2018-09-28 | 中钢集团洛阳耐火材料研究院有限公司 | 一种液相法合成含铬的多齿配位聚合物的方法 |
| CN113201788A (zh) * | 2020-06-24 | 2021-08-03 | 田振奎 | 一种镀铬老化液和镀铬废液再生的方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB148615A (en) * | 1919-04-22 | 1920-07-22 | Jules Morel | Improvements in the production of basic sulphate of chrome and its application to tanning and other uses |
| FR551624A (fr) * | 1921-09-06 | 1923-04-10 | Procédé industriel pour la récupération du chrome des eaux résiduaires | |
| US4108596A (en) * | 1975-07-11 | 1978-08-22 | Revere Copper And Brass, Incorporated | Recovery of chromium values from waste streams by the use of alkaline magnesium compounds |
| IT1042133B (it) * | 1975-08-28 | 1980-01-30 | Stoppani P & Co | Procedimento per il recupero e la valorizzazione degli scarti della fabbricazione dell anidri de cromica |
| JPS582165B2 (ja) * | 1979-08-18 | 1983-01-14 | 北大阪清掃株式会社 | クロム酸廃液の処理方法 |
| US4318788A (en) * | 1979-12-12 | 1982-03-09 | Andco Environmental Processes, Inc. | Chromate recovery process |
-
1988
- 1988-03-23 IT IT8819916A patent/IT1216507B/it active
- 1988-05-24 AU AU17923/88A patent/AU1792388A/en not_active Abandoned
- 1988-05-24 WO PCT/IT1988/000038 patent/WO1989009188A1/en not_active Ceased
- 1988-05-24 EP EP88904607A patent/EP0406234B1/de not_active Expired
- 1988-05-24 US US07/573,019 patent/US5112583A/en not_active Expired - Fee Related
- 1988-05-24 DE DE8888904607T patent/DE3876999T2/de not_active Expired - Fee Related
- 1988-05-24 AT AT88904607T patent/ATE83754T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3876999T2 (de) | 1993-06-03 |
| IT8819916A0 (it) | 1988-03-23 |
| AU1792388A (en) | 1989-10-16 |
| IT1216507B (it) | 1990-03-08 |
| WO1989009188A1 (en) | 1989-10-05 |
| EP0406234A1 (de) | 1991-01-09 |
| US5112583A (en) | 1992-05-12 |
| EP0406234B1 (de) | 1992-12-23 |
| DE3876999D1 (de) | 1993-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |