RO66779B1 - Procedeu si instalatie pentru recuperarea cromului din zemurile folosite la tabacirea pieilor - Google Patents
Procedeu si instalatie pentru recuperarea cromului din zemurile folosite la tabacirea pieilorInfo
- Publication number
- RO66779B1 RO66779B1 RO88914A RO8891476A RO66779B1 RO 66779 B1 RO66779 B1 RO 66779B1 RO 88914 A RO88914 A RO 88914A RO 8891476 A RO8891476 A RO 8891476A RO 66779 B1 RO66779 B1 RO 66779B1
- Authority
- RO
- Romania
- Prior art keywords
- chromium
- skins
- recovery
- installation
- liquors used
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052804 chromium Inorganic materials 0.000 title abstract 3
- 239000011651 chromium Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000009434 installation Methods 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 abstract 1
- 239000010985 leather Substances 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 239000008267 milk Substances 0.000 abstract 1
- 210000004080 milk Anatomy 0.000 abstract 1
- 235000013336 milk Nutrition 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Procedeul de recuperare a cromuluisub forma de solutie concentrata de sulfat bazic de tabacirea pieilor caracterizata prin aceea ca zemurile sunt aduse în contact cu laptele de var concentrat pîna la pH=7,5....9,5 si precipitatul de hidroxid de crom format este transformat în sulfat bazic de crom recuperabil prin tratare cu acid sulfuric concentrat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO88914A RO66779B1 (ro) | 1976-12-31 | 1976-12-31 | Procedeu si instalatie pentru recuperarea cromului din zemurile folosite la tabacirea pieilor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO88914A RO66779B1 (ro) | 1976-12-31 | 1976-12-31 | Procedeu si instalatie pentru recuperarea cromului din zemurile folosite la tabacirea pieilor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO66779A2 RO66779A2 (ro) | 1984-07-17 |
| RO66779B1 true RO66779B1 (ro) | 1984-09-30 |
Family
ID=20097152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO88914A RO66779B1 (ro) | 1976-12-31 | 1976-12-31 | Procedeu si instalatie pentru recuperarea cromului din zemurile folosite la tabacirea pieilor |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO66779B1 (ro) |
-
1976
- 1976-12-31 RO RO88914A patent/RO66779B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO66779A2 (ro) | 1984-07-17 |
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