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99.99% High Purity Gold Electrolysis From Gold Wet Way Purification
we specialize in new technology research and development, new machine research and development, technology promotion, production process and workshop design of various precious metal smelting, electrolysis and environmental protection, as well as all-round service businesses such as design and manufacturing of various professional customize equipment, overall workshop equipment installation, operator training, organization and guidance of trial production
Charactors:
(1) Casting anode plate: the crude gold raw material with 99% gold content is melted into the medium frequency smelting furnace and cast into a gold electrolytic anode plate.
(2) Electrolyte preparation and waste electrolyte recovery: gold electrolyte is prepared by dissolving pure gold in aqua regia and diluting it with hydrochloric acid aqueous solution.
(3) Electrolysis: hang the anode plate into the gold electrolysis cell and start the gold electrolysis equipment for electrolysis.
The company's high-efficiency gold electrolysis unit (as shown in the figure) is developed based on years of experience in gold refining projects and customer suggestions. It adopts integrated and integrated design. The whole machine includes a single electrolytic cell, circulating pump, rectifier power supply, automatic electrolyte replenishment system, electrolytic flue gas condensation recovery system, electrolyte temperature, voltage, current The copper bar temperature intelligent monitoring system, the rectifier power supply is closed separately, isolated from the acid gas in the workshop, and has a long service life.
With a number of domestic patents and advanced technology, it has the following advantages:
① The product quality is stable and can meet the gold ingot standard of au99.99 (grade I) of Shanghai Gold Exchange; it can also produce gold ingots with purity of 99.99% according to the special needs of customers;
② Low production cost: about 0.02 yuan / gram gold;
③ The electrolysis adopts AC / DC superimposed power supply, which can effectively inhibit the generation of silver chloride on the gold anode and make the anode plate electrolysis more thorough;
④ High current density electrolysis technology; cathode current density up to 1200A / m2, high production efficiency;
⑤ The electrolytic cell is designed with a transparent closed smoke cover to prevent smoke from escaping, which is easy to operate and beautiful;
⑥ A flue gas condensing device is set. Due to the high temperature (60-70 ℃) required by the gold electrolysis process, the flue gas condensing device can condense the reflux volatile electrolyte to avoid the loss of gold;
The main material of the equipment is high performance polypropylene material, adding anti-aging agent to the material, which greatly prolongs the service life of the equipment. The whole bracket material is PPH, and the corrosion resistance is very strong; the cathode and anode conductive bar material is titanium coated copper with excellent conductivity.
This set of gold electrolysis unit is designed with PLC automatic operation system, controlled by touch screen, and has the function of electrolytic parameter storage. When the electrolytic voltage, current and copper bar temperature are abnormal, the rectifier power supply can be directly interlocked to stop. The whole set of equipment is simple, safe and convenient.
| No | details | machine name | Specification | material | Unit | quantity |
| 1 | Gold refining complete equipment gm-jdj-3 | Electrolytic cell | Non standard; Refining capacity 3kg / D | PPH | pcs | 1 |
| 2 | Magnetic pump | MP-20RM | Fluorine lining | set | 1 | |
| 3 | Conductive copper bar | Non standard; The material is No. 1 red copper, and the specific size is according to the picture. | Red copper | set | 1 | |
| 4 | Cathode and anode conductive bars | Titanium clad copper | titanium | set | 1 | |
| 5 | Electrolytic cathode | Titanium plate (pure titanium) | titanium | set | 1 | |
| 6 | High level tank | 30L | Glass | set | 1 | |
| 7 | condenser | 1.5m2 | Glass | set | 1 | |
| 8 | Titanium screws | Rectifier power supply, heating, lighting, control panel | titanium | set | 1 | |
| 9 | Electric control system | Non standard; Material PPH | combination | set | 1 | |
| 10 | Trough support | Flat die, matching for gold electrolysis | PPH | pcs | 1 | |
| 11 | Anode mould | Specification and model | High purity graphite | set | 5 |
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Recovering Gold and Silver from Refractory Gold OresRecovering Gold and Silver from Refractory Gold Oresa method for recovering gold and silver from refractory gold ores, which falls into the field of metallurgy. It consists of two parts:
First, destroying the inclusions encapsulating gold and silver through hot pressure pre-oxidation, oxidizing organic carbon in the ore, and recovering sulfur contained in the ore;
Second, recovering gold and silver from the pre-leach residue via cyanidation or other cyanide-free leaching processes.
Recovery gold and silver from refractory gold ores, the total recovery rate of gold and silver exceeds 90%, which is 40 percentage points higher than that of the conventional cyanidation process, and the sulfur recovery rate is above 50% at the same time. The production cost of this process is approximately RMB 400 per ton of ore. Compared with bio-oxidation, two-stage roasting and conventional hot pressure oxidation processes, can reduce investment and production cost, improve recovery efficiency, realize comprehensive recovery of multiple elements, and lower environmental pollution, with remarkable economic and social benefits.
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Waste Blue Adhesive Film SheetsWaste Blue Adhesive Film Sheets for Semiconductor ApplicationsAt present, pretreatment methods for precious metal-bearing waste blue adhesive film sheets include the roasting process and wet stripping processes (using inorganic solvents and organic solvents respectively).
The roasting process has the advantage of a short treatment flow, as alloy feedstocks can be obtained directly after roasting. However, it has drawbacks of high investment cost: it requires the procurement of incinerators and flue gas treatment devices (as a large amount of harmful flue gas generated during roasting needs to be treated), leading to high environmental protection costs.
For the organic solvent-based wet stripping process, its merit is that it is easy to realize large-scale and automated production. Nevertheless, this method has defects such as long process flow, high requirements for production equipment, large reagent consumption, great harm to human health caused by the high volatility of reagents, and difficult waste liquid disposal.
As for the inorganic solvent-based wet stripping process, it also has problems including long treatment flow, low mechanization degree during the treatment process and relatively low efficiency.
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Precious Metal Recovery Electric Arc FurnacePrecious Metal Recovery Electric Arc FurnaceThe precious metal recovery electric arc furnace is a metal smelting furnace adopting DC (direct current) electric arc furnace technology, designed for the recovery and enrichment of precious metals from deactivated precious metal catalysts with silica-alumina carriers, precious metal-bearing tailings and smelting slag.
An openable curved exhaust hood is installed at the top of the furnace body. The hood consists of two symmetric left and right halves, which can be rotated towards each other to splice and form a hermetic seal. A screw conveyor is arranged above the furnace body, with its discharge port directly aligned with the furnace top. An exhaust duct is set above the opening-closing joint of the two halves of the curved exhaust hood, and the duct is connected in sequence to a dry quench tower, a bag dust collector, an induced draft fan and an exhaust stack.
Through material pretreatment and batching, the process improves the metal capture rate and the quality of the silicate glass phase in the furnace slag, making the slag meet the raw material standards for Portland cement and slag wool. It realizes the comprehensive recovery of both precious metals and catalyst carriers, and achieves the compliant disposal of hazardous solid waste.
