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SILVER EXTRACTION FROM FIXER / HYPO SOLUTION

 

I HAVE FIXED/HYPO SOLUTION CONTAINING SILVER. I NEED INFORMATION REGARDING EXTRACTION OF SILVER BY ELECTROLYSIS OF FIXED/HYPO SOLUTION.

THANKS FOR YOUR HELP.

MAROUKY R [last name deleted for privacy by Editor]
Pariod - Benghazi, Libya

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Would you please answer this letter? Where I can find the answer. Thanks for finishing.com. Dear sir, at the beginning let me thank you for your spirit of giving a hand of help to me. I appreciate your assistance. Here again I demonstrate my construction idea with the diagram, so would you kindly identify the following points 1 - should the electrodes touch the bottom of container. 2 - is there any specific graphite electrodes for this construction? If yes identify length and diameter . 3 - Does both length and diameter effect on extraction? 4 - what is suitable position of electrodes? Vertical or horizontal. 5 - How long is the distance between two electrodes? 6 - What is the type of current applied A.C or D.C 7 - What is the Applied Volts - Amperes - if I use Rheostat. 8 - Does the parameter i.e Volt-Amperes etc. remain unchanged if I use 5 liters of hypo instead of 30 liters. 9 - if I want electrolyte AgNO3 solution what about electrode are using - Ampere - Volt - Current ( D.C .AC ) your faithfully Maroky R [last name deleted for privacy by Editor] Paroid - Benghazi, LIBYA

Silver recovery units

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I HAVE FIXED/HYPO SOLUTION CONTAINING SILVER. I NEED INFORMATION REGARDING EXTRACTION OF SILVER BY ELECTROLYSIS OF FIXED/HYPO SOLUTION.

Also I wanted to know how we can do this in small scale

Rekharaj
Student - Kochi, Kerala, India

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++++++ I want to know all about silver extraction from Hypo/Fixer &/ or photo waste. I am chemical engg. & do the hobby research about the silver extraction from hypo or photo waste. Can somebody explain to me in detail about the construction & calculation of the equipment to carry out this process. I have created small equipment with small transformer of halogen lamp & carbon electrode; is it correct approach? please do send me detailed illustrated reply as soon as possible. Thanks, Santosh............. Santosh e [last name deleted for privacy by Editor] chemical - Pune, Maharashtra, India

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++++++ We very rarely see anyone provide a response of that great a depth in this forum, Santosh; calculations & illustrations invariably require paying a consultant. But if you publish your detailed plans here for your system, maybe someone like Maroky will respond with suggestions for improvements. You may want to keep your eye out for a copy of Kodak's 29-page booklet Recovering Silver from Photographic Materials. Best of luck with your efforts! Ted Mooney, P.E. finishing.com Brick, New Jersey

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February 19, 2008

Dear sir
I am a radiographer working in one of the teaching hospital in Ghana and would know step by step method of constructing a silver extraction machine and also the method of extracting it, for I am a very good designer. We have a lot of this film and fixer solution which we have just been washing into the drain.May I know if I can set of a small company to extract this silver from this expired x-ray films and the waste fixer solutions very profitably?
Can I get a pure 100% silver?
thank you
J.Banini
Ghana

Jamel Banini
product designer - Accra-Ghana

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May 23, 2008

Hi, Jamel. letter 15559 has over a hundred entries on this same topic and we have other threads on the same topic as well: 7293, 7382, 12102, 12944, 13040, and 15133 for starters.

It seems that the overwhelming majority of the people who post on that subject are dissatisfied with their recovery results: they are getting much less silver, making much less money, and working harder than they expected. My own explanation for such widespread disappointment is certainly not that all of these hundreds of people are too stupid to figure out good operating parameters -- but that someone out there is promising people more silver, more money, and less work than is realistic. That is to say, while the technology of silver recovery from photographic waste is very real, the promise of riches may be grossly exaggerated.

I would urge that people look in a library or spend a few dollars for the above-referenced booklet from Kodak, or a similar reliably scam-free instruction, before they spend many dollars on equipment and on waste silver solutions and then complain that it isn't generating as much silver as they hoped. I believe that no matter what they do it will not generate as much silver as they expected. Good luck.

Regards,

Ted Mooney, P.E. finishing.com Brick, New Jersey

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January 27, 2009

hello, I am chemist fresh graduated; I want a method to recover silver from exposed and unexposed X-ray film,thanks

mohammed hassan [last name deleted for privacy by Editor]
hobbyist - Riadh, Saudi Arabia

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May 19, 2009

1 - should the electrodes touch the bottom of container.

2 - is there any specific graphite electrodes for this construction? If yes identify length and diameter .
3 - Does both length and diameter effect on extraction?
4 - what is suitable position of electrodes? Vertical or horizontal.
5 - How long is the distance between two electrodes?
6 - What is the type of current applied A.C or D.C
7 - What is the Applied Volts - Amperes - if I use Rheostat.
8 - Does the parameter i.e Volt-Amperes etc. remain unchanged if I use 5 liters of hypo instead of 30 liters.
9 - if I want electrolyte AgNO₃ solution what about electrode are using - Ampere - Volt - Current ( D.C .AC )

KISHOR PATIL
student - pune,Maharashtra, India

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February 16, 2010

We are going to do the silver extraction machine. So we need idea about the material of the electrode? We have no idea please tell....

arul vasanthan
student - Chennai,Tamil Nadu, India