RO81184B1 - Procedeu de recuperare a zincului din apele reziduale - Google Patents
Procedeu de recuperare a zincului din apele rezidualeInfo
- Publication number
- RO81184B1 RO81184B1 RO102419A RO10241980A RO81184B1 RO 81184 B1 RO81184 B1 RO 81184B1 RO 102419 A RO102419 A RO 102419A RO 10241980 A RO10241980 A RO 10241980A RO 81184 B1 RO81184 B1 RO 81184B1
- Authority
- RO
- Romania
- Prior art keywords
- zinc
- residual water
- recovering zinc
- treated
- waste water
- Prior art date
Links
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
Conform inventiei, procedeul pentru recuperarea zincului din apele reziduale, provenite din procesul de obtinere a fibrelor artificiale, consta în aceea ca, în scopul recuperarii zincului cu randament de 98% apele reziduale acide avînd o temperatura de 90...95 degree C se trateaza în prima etapa cu o solutie de hidroxid de sodiu 30% pîna la un pH de 4...5, iar în treapta a doua se trateaza cu o solutie de carbonat de sodiu 10% pîna la un pH de 4...5, iar în trepta a doua se trateaza cu o solutie de carbonat de sodiu 10% pîna la un pH 8,5...9,5, dupa care concentratul de zinc sub forma de precipitat se separa de supernatant prin decantare sau filtrare, apoi se transforma în sulfat de zinc si se cristalizeaza.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO80102419A RO81184A2 (ro) | 1980-10-24 | 1980-10-24 | Procedeu de recuperare a zincului din apele reziduale |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO80102419A RO81184A2 (ro) | 1980-10-24 | 1980-10-24 | Procedeu de recuperare a zincului din apele reziduale |
Publications (2)
Publication Number | Publication Date |
---|---|
RO81184B1 true RO81184B1 (ro) | 1983-01-30 |
RO81184A2 RO81184A2 (ro) | 1983-02-01 |
Family
ID=20109078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO80102419A RO81184A2 (ro) | 1980-10-24 | 1980-10-24 | Procedeu de recuperare a zincului din apele reziduale |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO81184A2 (ro) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105645627A (zh) * | 2015-12-25 | 2016-06-08 | 中辉人造丝有限公司 | 一种纺丝过程锌离子回收循环利用系统 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10111895A1 (de) * | 2001-03-13 | 2002-09-19 | Kronos Titan Gmbh & Co Ohg | Verfahren zur Erhöhung des Trockenrückstandes bei aufgearbeitetem Zyklonstaub |
-
1980
- 1980-10-24 RO RO80102419A patent/RO81184A2/ro unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105645627A (zh) * | 2015-12-25 | 2016-06-08 | 中辉人造丝有限公司 | 一种纺丝过程锌离子回收循环利用系统 |
Also Published As
Publication number | Publication date |
---|---|
RO81184A2 (ro) | 1983-02-01 |
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