Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Silver extraction from waste hypo/fixer solution
Q. Please answer: volt/amps quantity to extract silver from x-ray films solution.
Shahe M.Seraydarianshahe armenia - Aleppo, Syria
2007
Q. Hello sir,
I want to start a silver business. I'm doing MBA.can you tell me what is the future of silver in Indian market because competition is so much. and if you don't mind can you give me full information related to making of silver, because I'm the first person in my family who is doing business.
thank you
- Sec
2007
2007
Q. Dear Sir,
sub:Extraction of silver from waste hypo solution by chemical process only.
I have heard about silver extraction from waste hypo solution.For a few months I have been longing to start silver extraction and came across some methods which were not authentic or not fully chemical process.
I have some more topics to be notified,
1.The various techniques of silver recovery from fixer
by using different chemical combinations.
2.It will be very helpful if the chemicals used are easily available.
3.Various chemical methods employed to extract pure silver on small scale.
I will be very thankful to you if you can get me that information,waiting for your reply hopefully,
Thanking you,
self employee - ALAPPUZHA, KERALA, INDIA
2007
Q. 1) How much silver can really be extracted in terms of grams/liter from an used fixer in saturated state ? And what can be the % of purity of this extracted silver ? At what price can it be sold at the current market price?
2) Can the fixer solution after extraction of silver be again reused for photographic development purpose? If so, at what price it can be sold to the consumer? Is there any qualitative difference with a "fresh" solution?
3) What is really the difference between Fixer and Hypo? Would you please give me clear idea on that? I do not have any.
4)Can there be any quantitative difference in silver content in different used fixer/hypo solutions procured from different sources viz., one from photography unit, the other from X-ray clinic, still other from offset printing unit or CT scan clinic etc.?
5) Can the film scraps also be utilized for silver extraction purpose?
6) How much hazards are involved in this trade, from health point of view? What precautions are to be taken?
You please help me in getting the name and address of the machine manufacturer in India or abroad?
architect - Coochbehar, West Bengal, India
|
- Chennai, India 2007 This is a large site with 60,000 threads, Mohamed, and the majority of questions have been answered. But there are a few topics like this one which attract hoards of people who were unrealistically led to expect riches. They come here unwilling to share the info they themselves have, perhaps thinking it's a priceless clue in the great secret; nor are they ever satisfied because the answers they do receive invalidate their get-rich-quick dream :-) But there are 5 or 6 good answers in this long thread. Please tell the other readers what you know, and maybe they will reciprocate. We are both disappointed with the large number of selfish people this thread has attracted -- please don't be one of them! Thanks. Regards,  Ted Mooney, P.E. Striving to live Aloha finishing.com - Pine Beach, New Jersey 2007 |
There are only questions in your site! Where are the answers?Q. Shall I purchase automatic machine offered by Silvo India or........any other vendor? Recently there was a show on Zee Business from Silvo India for silver extraction machine. Does anyone who has purchased machine from the said company or any feedback you want to give. Shall I proceed with purchasing of machine. Waiting for your helping hand...previously I received bad feedback that they can't extract even 1 gm/lt. Any positive feedback that you can give. Will wait.
Thanking you.
potential enterpreneur - mumbai
2007
A. Hi, Sohil. No machine can extract more silver from the hypo/fixer than is there! So I think the logical approach is to source the hypo/fixer first and have its silver content tested as the first step. Then you can say: "okay, here's the actual silver content of the hypo, let's see how much of it this unit recovers". To try to judge how completely a machine recovers silver, if you don't know how much silver there is in the hypo, is hopeless. I suspect that some sources are removing the easily-removed portion of silver then re-selling the rest :-(
Good luck.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Will NaOH precipitation method of silver recovery be more effective than electrolytic method?
Van Ryan Kristopher R. Galarpe- Bulua, Cagayan de Oro City
2007
2007
Q. Hello I am a graduation final year student, have been working on this project now for 1 year and think to take you this as my own business, please help 1) How much silver can really be extracted in terms of grams/liter from an used fixer in saturated state? And what can be the % of purity of this extracted silver? At what price can it be sold at the current market price?
2) Can the fixer solution after extraction of silver be again reused for photographic development purpose? If so, at what price it can be sold to the consumer? Is there any qualitative difference with a "fresh"solution ?
3) What is really the difference between Fixer and Hypo? Would you please give me clear idea on that? I do not have any.
4) Can there be any quantitative difference in silver content in different used fixer/hypo solutions procured from different sources viz., one from photography unit, the other from X-ray clinic, still other from offset printing unit or CT scan clinic etc.?
5) Can the film scraps also be utilized for silver extraction purpose?
6) How much hazards are involved in this trade, from health point of view? What precautions are to be taken ?
7) are their any dealers in Hyderabad from whom I can purchase this machine?
student - Secunderabad, A.P., India
Q. Dear Sirs, I am a Lebanese First Aider, While I was on Duty, someone told me that it is possible to extract Silver from X-rays photographies.
I Tried Searching online but could not find an answer to the question, So I was hoping if you could help me.
Is it possible to do so? And How can we do it.
I appreciate any help you give me.
Thank you in Advance.
unemployed - Lebanon
2007
Q. Dear Sir,
I want to know the following Questions ?
1.How much quantity of silver recovered from 1 k.g of scrap x-ray film?
2.What are resources of sellers list of Scrap?
3.What are the chemicals to be used in the process of silver recovery from scrap x-ray film ?
4.Is there any machines for silver recovery from scrap film
- Haryana
2007
Respected sir
I want to know the electrolysis method for extraction of silver from hypo solution
I have source of hypo solution from industrial radiography labs I know the chemical method in which sodium sulfide is used.
At present I am working in K S A & here I don't know where I can find the chemicals. So I want to know the alternate method for extraction of silver from hypo.
You just tell me how I can extract silver from hypo except chemical method.
hobbyist - Thane, Maharashtra , India
2007
Hi Shashikant. More than a hundred people are waiting in front of you for information on that sodium sulfide chemical method which you know but are not sharing.
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. I have come across a plant manufacturer who claims they can provide an automatic plant with a capacity of 300 grams/day,500 grams/day,1 kg ,3 kg and 5 kg or higher capacity, which requires no other input except used fixer and can produce 10 grams of pure silver from one lit.of saturated fixer solution. What should be my checkpoints before deciding on it?
I am completely new in this field and practically I do not have any idea on it , though I am seriously interested to start it without much delay. So I would be highly grateful to get your valuable suggestions on this trade. With regards,
buyer - Palakkad, Kerala, India
January 28, 2008
Q. Hi. I am an undergraduate student in a renowned university in Nigeria and I am a nigerian. I have been into the electrolytic method of recovering silver for almost a year now and it might interest you to know that the proceeds I get from the sales of the recovered silver is what I use in funding my university education. You can imagine what I go through trying to balance school work with my "business". What I need is a faster way/method I can use to recover silver from photographic wastes.
Here is my connection; I have a container which contains 250 liters of photographic wastes, then I place what we call graphite or lead at opposite sides of the container, making sure that part of both graphites are inserted into the wastes. I also got the head of a ceiling fan which I attach a steel to and place it over the container with the steel in the waste.Then I get a car battery charger ⇦this on eBay or Amazon [affil links] with positive and negative outlets. I split the positive in two to touch the graphites at both sides of the container and draw a single wire from the negative to touch the steel. As soon as there is flow of current, the car battery charger supplies positive current to the graphites and negative current to the steel. So as the fan is turning, the silver in the wastes stick to the steel. But my problem here is that it takes up to 5 days just to refine 250 liters of the wastes and others who do it in other parts of Nigeria say there is a machine which I can use to recover the whole content of silver in just 8 hours but they just won't let me know the machine. They keep it a secret. The battery charger I use is a local one, made here in Nigeria but I think the one they use is a foreign one. This is the reason I am sending this mail: to know if a foreign battery charger can do the job. I really need this. Please reply within 24 hours.Thanks.
Obogheneruru Orhuesie- Port Harcourt,Rivers State,Nigeria
February 23, 2008
Q. Please give me an idea how to recover silver in a most inexpensive way
thanks,
Rod
- Cebu City, Philppines
March 6, 2008
April 27, 2008
A. All right! Do you all guys want to know? This is it!
The best way to recovery silver from X ray films or B/W negatives is oxalic acid
⇦this on
eBay or
Amazon [affil links]
, heat the acid to 100 °C,put the film into the acid and in 20 minutes all the silver goes off to the bottom, no fumes, no risk, no environment damage, just pure silver. By the way, the oxalic acid is 5% concentration. Best Regards.
- Pachuca, Hidalgo, México
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Ed. note: Thanks, Juan
A. Hello people,
There is a company in mumbai that makes silver extraction machine. They have various models according to the capacity of solution one wants to process and recovery silver from.
I have one of their machine and is running successfully. Maybe you can contact them. Aero Products.
Best Regards,
Jayesh Jain- Mumbai, Maharashtra, India
May 10, 2008
Q. Hello sir,
I am a radiographer and please let me know how can I get silver from developer and waste x-ray films?
thank you.
owner - Himachal Pradesh, India
September 26, 2008
Q. Dear Sir
I am a student of fourth sem (pg) I am doing project on "Silver recovery from waste x-ray film for that I need some information As now I am using chemicals These are Nitric Acid but I want the direct burn the film recover silver please give me details information How can burn the film and next processing
Awaiting your valuable response
Thanking you
Student - Sangli (Maharashtra) India
October 12, 2008
Q. Dear Sir,
Last week I sent email that asked you how to recover silver from waste x-ray film but we want the direct film burn method; but still today you don't send any answer, why? Please send me immediate reply.
jewellery designer - Sangli (Maharashtra) India
October 24, 2008
Hi, Mahesh. We posted your inquiry, but I don't personally know the answer. Perhaps burning the film produces noxious gasses. I don't have the answer and I can't force the readers who have knowledge to answer you.
But I do see that Jim Sivertsen posted a while back that burning is "not environmentally friendly". Maybe if your posting starts by quoting that, or starts with trying to help one of the 200 inquirers before you with their questions about nitric acid recovery there might be mutual cooperation. Good luck!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 28, 2008
Q. I am a Chemistry student from Ahmadu Bello University Zaria and and I'm working on a project "Extraction of silver from photographic waste solution" Please could someone help me with a simple laboratory method of doing this? Thank you in anticipation.
Paul Zuwahu- Zaria, Kaduna, Nigeria
December 19, 2008
Q. I would like to know the manual process by step by step guide to recover silver from the photographic color bleach please guide whoever knows the manual process
Shyam Sundar- Vijayawada, Andhrapradesh
January 10, 2009
Q. I would like to set up a factory of recovering silver from hospital X ray films in iran (with two partners). We have heard about silver recovery from X ray films and would like to know more about it. I don't know the first things about it. There is a lot of x ray films waste in this part of the world. Can you help me please. Is there a handbook of step by step how to do it? can I buy ready made kits? I understand the technology is big in India? can anyone help? anyone interested in selling his expertise? How much is the quantity of silver contained in 1000 gm of X-ray film scrap? Can we extract silver profitably from X-ray film scrap? If possible how? What is the market rate of X-ray film scrap per kilogram?
Sir, I want you to make me clear whether hypo sol. from X-ray labs is dangerous to health if we come in touch with it while extracting silver from it? Please let me know.
employee - cbe, Tamilnadu, India
May 1, 2009
May 12, 2009
Q. Respected sir,
I requested to know how to prepare machine (what are all the equipments it needs). And also I tried to build up the machine but we did not do fully .
Following are my queries:
1. we don't know what type of metal cathode and anode .
2. how much of DC voltage we have to give.
3. the full idea of prepare machine (silver extraction from waste hypo/fixer, x ray films)
Please send the answer of these questions as much as possible.
Thanking you yours faithfully,
manager - ludhiana, Punjab , India
Q. I want full detail of extraction of silver from hypo, fixer and waste x-ray films.
Charanpreet Vermajeweller - Nabha,Punjab, India
May 21, 2009
May 22, 2009
Hi, Charanpeet. This thread has been on line for many years now, with at least a few good answers provided; so I don't think it is constructive to start from the top again, forcing the thread into endless circles. Could you instead please try to express your question in terms of what has already been said. For example, "My understanding of your answer then is that . . . but what I still don't see is . . ." Thanks!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
May 28, 2009
Q. Hi sir,
I want the information like,
1) Is there any standard dimensions of electrolysis cell. if yes what they are?
2) the solution required for the process.
3) The clearance between electrodes and the cell bottom.
4) who much quantity of solution is filled in the cell.
5) who much voltage required for the process and type of current(ac,dc)
product designer - Sangli, Maharashtra, India
Q. Dear Sir,
I am planning a part time business of Silver Extraction from Fixer solution,I have read a lot about the separation of silver from fixer solution; I want to know which chemical is used to separate silver from fixer solution so as to reduce the volume when we purchase it and also the amount of chemical to be used.
Thanks.
- Srinagar, India
July 4, 2009
Q. Dear Sir,
I am a student of B.Tech in Chemical Engineering under University of lahore and am in my final year. I got my project "Recovery of Silver from X-ray plate and photographic waste solution". That's why I am asking for the process of recovery of silver which must be cost-economic and can be carried out in a chemical laboratory. I will be heartily grateful to you if you please send me all the details about the process,chemical reactions involved, ecofriendliness of the process, possibility of further modification etc. In a word, all the data required from A to Z. Awaiting an early favorable reply.
Yours sincerely,
abbas gul
- Lahore, Punjab, Pakistan
August 26, 2009
A. Hi Abbas. Books cover such topics from A to Z; a paragraph on the internet can't even begin to cover it from A to B. Please see if your university library can get access to a good book on the subject for you.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Q. Resp, Sir
I goldsmith and silver refinery person I want known how recover silver from watch button sale it is profitable and also I known how recover the silver from waste x-ray film but I do not know how recover the silver from watch button sale please guide me I waiting for your valuable reply.
Thanking you.
jewel - Islampur Maharashtra India
September 6, 2009
October 18, 2009
The site which I got last week and are joyas to greet my happy "Diwali" to all my respected sir/madam.
I am gathering my knowledge from my respected friends question and experience about to get maximum quantity of Silver from fixer waste/from x-ray film with the help of chemical process and through electrolysis method.
I'm experienced about to collect fixer waste in proper manner.
Regards.
- kolkata, westbengal, India
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