RO88077B1 - Procedeu de separare a elementelor utile din deseurile de fabricatie ale dispozitivelor semiconductoare - Google Patents
Procedeu de separare a elementelor utile din deseurile de fabricatie ale dispozitivelor semiconductoareInfo
- Publication number
- RO88077B1 RO88077B1 RO113698A RO11369884A RO88077B1 RO 88077 B1 RO88077 B1 RO 88077B1 RO 113698 A RO113698 A RO 113698A RO 11369884 A RO11369884 A RO 11369884A RO 88077 B1 RO88077 B1 RO 88077B1
- Authority
- RO
- Romania
- Prior art keywords
- gold
- separated
- solution
- wastes
- device fabrication
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 8
- 239000010931 gold Substances 0.000 abstract 8
- 229910052737 gold Inorganic materials 0.000 abstract 7
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 abstract 3
- 239000000243 solution Substances 0.000 abstract 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052740 iodine Inorganic materials 0.000 abstract 2
- 239000011630 iodine Substances 0.000 abstract 2
- 239000003929 acidic solution Substances 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 238000010908 decantation Methods 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 238000005342 ion exchange Methods 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
- 238000000926 separation method Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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, conform inventiei, ce constituie o inventie complementara la inventia principala cu descrierea nr. 83221, se caracterizeaza prin aceea ca, în scopul optimizarii conditiilor de separare a aurului solubilizeaza/prevede dizolvarea selectiva a aurului depus superficial în solutie acida în care rapoartele între iod; iodura de potasiu: apa: acid sulfuric sunt respectiv de 1:1,2-5:10-25:0,5-1 p/g la maximum 50 degree C, timp de 4-8h, astfel încît, dupa separarea reziduului insolubil, sa se obtina o solutie bogata cu continut de 10 g/l Au, din care se separa prin decantare aurul defoliat si namolul cu continut de aur, dupa care, atît componentele solide astfel separate, cît si solutia, ambele cu continut de aur, se prelucreaza fiecare pentru separarea aurului si apoi din solutia reziduala în care concentratia de aur trebuie sa fie sub 0,01 g/l se recupereaza atît metalele continute, cît si iodul si apoi ultimele resturi de aur se separa prin schimb ionic în conditiile cunoscute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO84113698A RO88077A3 (ro) | 1984-02-23 | 1984-02-23 | Procedeu de separare a elementelor utile din deseurile de fabricatie ale dispozitivelor semiconductoare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO84113698A RO88077A3 (ro) | 1984-02-23 | 1984-02-23 | Procedeu de separare a elementelor utile din deseurile de fabricatie ale dispozitivelor semiconductoare |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO88077B1 true RO88077B1 (ro) | 1985-10-31 |
| RO88077A3 RO88077A3 (ro) | 1985-11-30 |
Family
ID=20114454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO84113698A RO88077A3 (ro) | 1984-02-23 | 1984-02-23 | Procedeu de separare a elementelor utile din deseurile de fabricatie ale dispozitivelor semiconductoare |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO88077A3 (ro) |
-
1984
- 1984-02-23 RO RO84113698A patent/RO88077A3/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO88077A3 (ro) | 1985-11-30 |
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