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US5238543A - Recovery of silver from photographic film …
- https://patents.google.com/patent/US5238543A/en
- A process which incorporates the recovery of silver from photographic film into the recovery of silver from photographic development waste solution is …
How to Recover Silver from Waste Photographic Solutions
- https://www.911metallurgist.com/silver-recovery-waste-photographic/
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Recovering Silver from Photographic Materials
- https://www.911metallurgist.com/blog/recovering-silver-from-photographic-materials
- Fill a five-gallon plastic bucket with bleach. Dip the film into the bleach and move it around. When the film is transparent, all the silver has been removed. When the... Filter off the silver from the bleach by pouring through a plastic strainer or funnel lined with a coffee or ash-free... Dry the ...
Photographic Film Silver Recovery | Arch Film Recycling
- https://www.archenterprises.com/photographic-film-recycling.html
- Arch Enterprises recovers silver from photographic film and photographic papers through our comprehensive film silver recovery and recycling process. We have the capability to handle large amounts of scrap silver-bearing films and photo papers. From full truck-loads to smaller amounts we can handle your material quickly and efficiently.
Method for the recovery of silver from waste …
- https://www.osti.gov/doepatents/biblio/5364206
- Abstract. The method of the present invention is directed to the recovery of silver from spent photographic fixer solutions and for providing an effluent essentially silver-free that is suitable for discharge into commercial sewage systems. The present method involves the steps of introducing the spent photographic fixer solution into an alkaline hypochlorite solution.
Recovering Silver from Photographic Process Wastes
- https://link.springer.com/article/10.1007/BF03220412
- Spent color bleach-fix solution (CBFS), a product of photographic processing operations, is a potential source of silver. Of the extraction reactors used in recovering this silver, the rotating cylindrical electrode (RCE) has an advantage in that it provides improved mass transfer with an extended effective surface area.
EXTRACTION OF SILVER FROM PHOTOGRAPHIC WASTE …
- https://www.researchgate.net/publication/279524990_EXTRACTION_OF_SILVER_FROM_PHOTOGRAPHIC_WASTE_EMULSION_LIQUID_MEMBRANE
- In photographic industry, silver is recovered from development and fixing solution, spent rinse water and scrap films. Electrolysis is a commonly used …
Method for recovering silver from waste photographic …
- https://www.freepatentsonline.com/4759914.html
- Method for recovering silver from waste photographic film and paper 1. In a process for recovering silver from the emulsion of photographic materials, of the type wherein silver in the... 2. The process of claim 1 wherein the ferric chloride solution contains from …
SILVER RECOVERY FROM PHOTOGRAPHIC WASTES - JOHNSON …
- https://www.freepatentsonline.com/3754743.html
- SILVER RECOVERY FROM PHOTOGRAPHIC WASTES 1. In a silver rendering apparatus for rendering silver from photographic waste which has a photographic waste... 2. The silver rendering apparatus of claim 1 wherein said cooling means comprises means for blowing cooling air into... 3. The silver rendering ...
SILVER RECOVERY FROM WASTE FILM BY BURNING
- https://www.sciencedirect.com/science/article/pii/B9780080253923500454
- Once collected, recovery of film from waste photographic film can be accomplished by either of two basic methods. The simplest method is to burn the film in a suitable incinerator, and reclaim the silver from the ash by conventional metallurgical techniques.
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