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Precious Metal Recovery
The following are recovery, not
refining systems. Recovery system
capture precious metal so that it is not lost. They also concentrate
it, but they do not make it pure. That is the job of
refining systems. There are 2 different
kinds of recovery systems presented on this web page;
1) Recovery systems for washout
These systems recover particles of precious metal that are washed down the drain
when polishers, grinders and bench people wash their hands. They also
recover metal from ultrasonic drain water, slop water from washing the floor and
anything else that is washed or poured into the sink.
2) Recovery systems for dissolved
precious metals. These systems
recovered from alkaline solutions such as the cyanide waters from bombing,
stripping and plating operations. Since precious metal recovery from acid
solutions generally results in pure precious metal, those chemicals, machines
and systems are not including on this page but are to be found on the Shor
Refining Systems web page.
Technically, other systems, such as dust collectors, can be classified as recovery systems, but they will not be found on this web page. For dust collectors and other polishing systems, see Dust Collectors. The precious metals recovered using recovery systems can be refined to pure metal using the refining systems, found on the Shor Refining Systems web page.
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Recover of Gold from Circuit Boards and Other Computer Parts
Gold can be recovered from computer parts (and telephones) in 4 basic methods:
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1. Scraping or other abrasives
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2. SubZero
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3. StripFree
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4. Aqua Regia
Scraping
If you have the time and
patience, you can get a lot of gold just by using ordinary window paint scrapers
and similar devices to remove the gold from edge connectors, fingers and other
parts. It is very effective, though time consuming.
StripFree
StripFree is good for all
items that are stainless steel based and to which you can make electrical
contact. A good item for this is the underplate on the bottom of CPU
chips. StripFree works by electrolytic action and requires the use of a
car battery charger. It can be used over and over again, as long as the
solution does not become contaminated.
Aqua Regia
An excellent and
effective technique to both recover and refine the gold to pure. It's
major drawback is that it requires the use of strong acids (hydrochloric and
nitric) and produces very corrosive fumes.
SubZero
Shor has improved
significant on the aqua regia process by the development of SubZero, a
non-hazardous powder that replaces nitric acid in the aqua regia process.
For instructions on this process, see:
Aqua Regia Refining with SubZero
If using StripFree or scraping, you can refine your metal to pure form using the Simplicity method. For more information on that process and other methods of refining, see Refining
Shor Subzero Process
Recover & Refine Gold
from Computer Circuit Boards
Our most popular method of processing circuit boards.
This process both recovers and refines gold to 99.95%
| Supplies for Gold Recovery & Refining by the SubZero Method | ||||||
| How it is Used | Quantity | Stock# |
Price |
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| SubZero/Aqua Regia Gold Refining Starter Supplies |
Includes all the consumable supplies needed to begin to refine circuit boards and other gold bearing material. Supplies included: Storm Precipitant, Precious Metal Detection Liquid, Ammonia Detection Liquid, Urea, SubZero & Instructions. |
Set | SUBZKIT |
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| Storm Precipitant | Used to precipitate pure gold from aqua regia or saltwater 1 lb. is sufficient for 1 lb of dissolved metal | 1 lb Bag | STORM |
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| 10 lb Bag | STORM10 |
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| Precious Metal Detection Liquid | Used to determine that no more precious metal is dissolved in aqua regia or saltwater solutions. Sensitive to 4 parts precious metal per million parts acid or water. 1 bottle lasts about 1 year. | Bottle | TESTLIQUID |
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| Ammonia Detection Liquid | Used to determine that your gold has been thoroughly washed and is very pure. | Bottle |
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| Urea | Used to neutralize nitric acid before precipitating. There are no alternatives to urea other than diluting with massive amounts of water. The amount required for any refining batch may vary greatly from batch to batch. | 1 lb Bag | UREA1 |
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| 10 lb Bag | UREA10 |
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| SubZero | Powdered nitric acid
substitute. Non hazmat! Safe to ship via UPS with no hazmat fee and no danger. This material is pH neutral and is only a substitute for nitric when added to hydrochloric or muriatic acid. See the following page for: instructions for refining with SubZero |
1 lb Bag | SUBZERO |
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Shor CBX Solution
Recover Gold from Computer Circuit Boards
CBX is an excellent method of recovering gold from circuit boards, but has lost most of its popularity since the introduction of the SubZero aqua regia method (see above), largely because the SubZero method both recovers and refines the gold in a single process. SubZero can also be used in place of StripFree.
We apologize for any inconvenience that the discontinuance of CBX may cause, but we sincerely believe that you will be quite pleased to use SubZero instead.
StripFree
Recovery of gold from computer chips and other stainless steel backed, gold plated materials.
Excellent for recovery of gold from gold plated steel parts. Used electrolytically with a battery charger or rectifier.
| StripFree Solution (1 gallon) |
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Price $61.30 | |
| StripFree & CBX instructions |
Shor Washout Recovery Systems
Recovery of precious metal from under the sink
Shor invented washout recovery systems. Over the last few decades we've made significant improvements in component design, improved quality and, at the same time, brought prices down. Despite this, the basic design of our systems was so simple and effective, we've been unable to improve on this basic design.
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See other Shor web pages for FiltraGold brochure (more info) and FiltraGold instructions
Stasis Settling Tanks
The Most Advanced Settling Tanks Ever Built!
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Precious Metal Recovery from Cyanide Waters
Cyanide waters contain a surprising amount of gold. Even small amounts of solution (1 gallon, for example) are worth recovering the gold from. There are many ways to recover precious metals from cyanide waters (cyanide waters include bombing solutions, stripping solutions and plating solutions). Some of these methods include metallic ion exchange, resin ion exchange, chemical precipitation and electrolytic recovery. All work well. All have their good points and also drawbacks. We carry 2 different kinds of recovery systems for cyanide waters:
- Shor Bombino
Incredibly simple. Electrolytic recovery - Zinc foil
By far, the least expensive way to go. Metallic ion exchange recovery.
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Shor Bombino Recovery System The simplest way to recover gold from cyanide waters. Just clip your battery charger or rectifier to the Bombino, plug it in and let it run overnight. You can run many gallons before you recover the gold (or just a few, if you prefer). To recover the gold, just unscrew the top of the recovery chamber, remove the electrolytic foil and melt. That's it! The Bombino includes a supply of Detection Pills and electrolytic foil.
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Shor Gold Detection Pills
Used to determine that all the gold is out of solution before the cyanide is
neutralized and destroyed, insuring that all the gold is recovered. Sensitive to
within 4 parts of gold per million parts of solution. Please note that it is
important to recover the gold from solution before the
cyanide in the solution is neutralized and destroyed. Otherwise, you run a
very good chance of trapping the gold in solution.
Shor Gold Detection Pills
Stock # TESTPILLS
Price (per pkg.): $11.99 TESTPILLS Buy
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