MD791G2 - Procedeu de extragere a argintului din materiale fotosensibile - Google Patents
Procedeu de extragere a argintului din materiale fotosensibileInfo
- Publication number
- MD791G2 MD791G2 MD96-0017A MD960017A MD791G2 MD 791 G2 MD791 G2 MD 791G2 MD 960017 A MD960017 A MD 960017A MD 791 G2 MD791 G2 MD 791G2
- Authority
- MD
- Moldova
- Prior art keywords
- exhausted
- silver recovery
- hydrogen peroxide
- silver
- invention consists
- Prior art date
Links
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 229910052709 silver Inorganic materials 0.000 title abstract 4
- 239000004332 silver Substances 0.000 title abstract 4
- 239000000463 material Substances 0.000 title abstract 3
- 238000011084 recovery Methods 0.000 title abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 3
- 239000003153 chemical reaction reagent Substances 0.000 abstract 3
- 230000001133 acceleration Effects 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000005672 electromagnetic field Effects 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Landscapes
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
Invenţia se referă la procedeul de extragere a argintului, în special, din peliculele tratate şi developate, hârtiile fotografice şi din alte materiale, care se utilizează în industria fotografică şi roentgenoscopie, fiind tratate cu reactivi chimici.Esenţa invenţiei constă în aceea că procedeul de extragere a argintului din materiale fotosensibile include tratarea lor cu reactivi chimici, aplicând faza de dispersie cu separarea ulterioară a precipitatului prin decantare, unde în calitate de reactiv se foloseşte peroxidul de hidrogen, iar în calitate de fază de dispersie, magnetita dispersată, luate în raportul de masă 1: (5-10), procesul desfăşurându-se la o temperatură de 50-70°C cu lichefiere magnetică a mediului dispers cu tensiunea de 1200-1500 Oe pe corpurile cauciucate sferice din feromagnet, compuse din hexaferit de bariu sintetizat şi magnetizat până la saturaţie. Cele mai bune rezultate se obţin la utilizarea soluţiei de peroxid de hidrogen de 7-10%.Rezultatul tehnic al invenţiei constă în accelerarea procesului de oxidare a compuşilor argintului şi intensificarea schimbului de masă.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD96-0017A MD791G2 (ro) | 1996-01-30 | 1996-01-30 | Procedeu de extragere a argintului din materiale fotosensibile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD96-0017A MD791G2 (ro) | 1996-01-30 | 1996-01-30 | Procedeu de extragere a argintului din materiale fotosensibile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD791F1 MD791F1 (ro) | 1997-07-31 |
| MD791G2 true MD791G2 (ro) | 1998-05-31 |
Family
ID=19738783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD96-0017A MD791G2 (ro) | 1996-01-30 | 1996-01-30 | Procedeu de extragere a argintului din materiale fotosensibile |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD791G2 (ro) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD3037G2 (ro) * | 2004-11-15 | 2006-12-31 | Государственный Университет Молд0 | Procedeu de extragere a argintului din materiale fotografice uzate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD830Z (ro) * | 2014-04-18 | 2015-06-30 | Институт Генетики, Физиологии И Защиты Растений Академии Наук Молдовы | Procedeu de tratare a seminţelor de morcov înainte de semănat |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1699949A1 (ru) * | 1989-11-28 | 1991-12-23 | Нижнекамское производственное объединение "Нижнекамскнефтехим" | Способ извлечени серебра из сточных вод |
-
1996
- 1996-01-30 MD MD96-0017A patent/MD791G2/ro active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1699949A1 (ru) * | 1989-11-28 | 1991-12-23 | Нижнекамское производственное объединение "Нижнекамскнефтехим" | Способ извлечени серебра из сточных вод |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MD3037G2 (ro) * | 2004-11-15 | 2006-12-31 | Государственный Университет Молд0 | Procedeu de extragere a argintului din materiale fotografice uzate |
Also Published As
| Publication number | Publication date |
|---|---|
| MD791F1 (ro) | 1997-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG3A | Granted patent for invention | ||
| IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20160130 |