99.8% purity
Precious Metal Electrolytic Recovery Machine
High-frequency pulse recovery that pulls gold and silver straight out of spent solution as metal.
Precious Metal Recovery & Refining Equipment · 10 kg/day
Silver Electrolysis Refining Machine
80 to 92.5 percent scrap silver taken to 9999 on 10 percent dilute nitric acid alone.
Overview
What This Machine Is
A PP and titanium electrolysis cell that dissolves 925 and lower-grade silver in 10 percent dilute nitric acid, then reduces the silver back onto a rotating cathode at 9999 purity. 10 kg/day standard, 50 kg/day or customised, 1 kW.
The problem it is built for
Most small refiners either sell scrap silver at an assay discount or run a multi-step chemical refine that needs equipment they do not have. One cell, one reagent and a day gets the same 9999 result in-house, and the margin stays with the workshop.
Specification
Silver Electrolysis Refining Machine Specification
Transcribed from the published product data. Where a figure is not published it is not listed here, and it has not been estimated.
| Product name | Silver electrolytic refining machine |
|---|---|
| Brand | XHF |
| Function | Refining silver with a purity of 90% to 99.99% |
| Input material | Waste silver of 80% to 92.5% purity |
| Capacity | 10 kg/day (50 kg/day or customised) |
| Voltage | 220 V / 380 V |
| Power | 1 kW |
| Material | PP + titanium |
| Core components | PLC, pump, motor |
| Reagent | 10% dilute nitric acid |
| Single package size | 73 x 58 x 103 cm |
| Single gross weight | 77 kg |
| Warranty | 1 year |
| Supply ability | 600 sets per year |
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Features
What Is Built Into It
One reagent, not a reagent programme
10 percent dilute nitric acid is the whole chemistry. Copper, zinc and the other impurities dissolve; the silver is recovered electrolytically onto the cathode.
Four-round titanium baskets
Old 925 jewelry goes straight into the titanium baskets. Titanium is what survives the nitric acid without contaminating the bath.
Rotating cathode
Silver in solution is reduced and adsorbed onto a rotating cathode, which is what keeps the deposit loose enough to harvest instead of welding itself to the plate.
9999 from 90 percent feed
Feed below 90 percent needs more than one pass. From 90 percent and up the published result is 99.9 or 99.99 percent in a single refine.
No waste gas, no high-risk step
The source describes the whole route from waste silver to 9999 silver as achievable with dilute nitric acid alone, with no waste gas and no high-risk operation.
Applications
Where It Is Used
- Jewelry manufacturing: silver scrap, filings and defective pieces refined back to high-purity metal
- Electronics: silver recovered and purified from circuit boards, connectors and components
- Photography and imaging: silver extracted from photographic fixer and other chemical solutions
- Electroplating: silver refined out of plating baths, drag-out tanks and rinse waters
- Precious metal recycling plants processing mixed metal feed
Photographs
Silver Electrolysis Refining Machine In Detail
Every photograph on this page is of the actual machine as supplied. Nothing here is a render.
Industries
Industries Running This Machine
Precious Metal Refineries
From mixed feed to a documented purity figure: 9999 silver, cathode copper, aqua regia gold dissolution.
Jewelry Manufacturing
Electroforming, plating, acid finishing and scrap recovery for factories making gold and silver pieces.
Photographic And Imaging
Silver pulled out of spent fixer at 98 percent recovery, with residual below 20 mg/L.
FAQ
Silver Electrolysis Refining Machine Questions
What purity of feed does it need?
It is designed for waste silver of 80 to 92.5 percent. Above 90 percent it takes the metal to 99.9 or 99.99 percent; below that, the source states the bar needs refining several times.
What chemicals do I have to buy?
10 percent dilute nitric acid. That is the published potion ratio and the only reagent named in the process.
What throughput can I expect?
10 kg/day as standard. 50 kg/day and other capacities are listed as available or customised.
How big is the shipped unit?
73 x 58 x 103 cm, 77 kg gross, wooden box packing, dispatched from Shenzhen.
Related
Machines Usually Specified With It
3-4 kg/24h
Copper Electrolysis Refine Machine
Scrap copper anodes in at 80 percent, cathode copper out at up to 99.99 percent.
99.9% Ti
Gold Melting Reactor
A sealed 99.9 percent titanium reactor for aqua regia gold dissolution, 10 to 20 kg a charge.
Quote The Silver Electrolysis Refining Machine
Send your daily volume and feed grade and we will confirm the size, capacity and power that fits. Production and delivery normally 7 to 15 working days after order confirmation.