RO81260B1 - Procedeu de extragere a elementelor utile din minereuri oxidice - Google Patents
Procedeu de extragere a elementelor utile din minereuri oxidiceInfo
- Publication number
- RO81260B1 RO81260B1 RO10304980A RO10304980A RO81260B1 RO 81260 B1 RO81260 B1 RO 81260B1 RO 10304980 A RO10304980 A RO 10304980A RO 10304980 A RO10304980 A RO 10304980A RO 81260 B1 RO81260 B1 RO 81260B1
- Authority
- RO
- Romania
- Prior art keywords
- nitric acid
- precipitation
- extracting useful
- useful elements
- leaching
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 3
- 229910017604 nitric acid Inorganic materials 0.000 abstract 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 2
- 238000002386 leaching Methods 0.000 abstract 2
- 229910052745 lead Inorganic materials 0.000 abstract 2
- 239000004571 lime Substances 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 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
- 238000000926 separation method Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Procedeul de extragere a elementelor utile din minereuri oxidice, conform inventiei, prevede lesierea în flux continuu de acid azotic concentrat, urmata de separarea reziduului insolubil saracit la metale si de precipitare în solutia obtinuta a Cu, Zn, Pb cu lapte de var sub forma de hidroxizi din care fiecare element se recupereaza uzual, iar azotatul de calciu obtinut se valorifica fie ca atare în îngrasamînt, fie se trateaza cu acid sulfuric pentru regenerarea acidului azotic care se recircula. în scopul obtinerii unor randamente ridicate de extractie, se efectueaza lesierea cu acid azotic 47....70% si de preferinta 47% concentratie la 25...45 degree C, timp de 30....80 min, la un raport S : L cuprins între 1 : 2 si 1 : 3 si din solutia obtinuta eventuala extractie preliminara cu Cu prin cementare, în mod cunoscut, înainte de precipitarea Pb si zn cu lapte de var în conditii uzuale de pH = 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO10304980A RO81260B1 (ro) | 1980-12-31 | 1980-12-31 | Procedeu de extragere a elementelor utile din minereuri oxidice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO10304980A RO81260B1 (ro) | 1980-12-31 | 1980-12-31 | Procedeu de extragere a elementelor utile din minereuri oxidice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81260A2 RO81260A2 (ro) | 1983-02-15 |
| RO81260B1 true RO81260B1 (ro) | 1983-02-28 |
Family
ID=20109380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO10304980A RO81260B1 (ro) | 1980-12-31 | 1980-12-31 | Procedeu de extragere a elementelor utile din minereuri oxidice |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81260B1 (ro) |
-
1980
- 1980-12-31 RO RO10304980A patent/RO81260B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81260A2 (ro) | 1983-02-15 |
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