PRECIOUS METALS RECOVERY

The recovery of precious metals from manufacturing waste or chemical processes represents an extremely important activity in the economy in the economy of business activities.

The metals dissolved in solutions are often present in different forms and concentrations depending on the type of process from which they derive, and their recovery can take place with different techniques and methods.

Balestri Technologies has developed different types of machinery:

ELECTROWINNING: ELECTROLYTIC UNITS

Electrolytic recovery cell (electrowinning): easily recovers precious metals dispersed in basic and acid solutions.

The operating principle is based on the electrowinning technique, an electrochemical process that is carried out inside an electrolytic cell in which the metal, dissolved in solution, is extracted by depositing on the cathode. The passage of current inside the solution determines the deposit of the metal on a specific support.

MAIN FEATURES::

• Easy to use
• No supervision required
• No installation service required
• Minimal maintenance
• High recovery efficiency
• Rapid return on investment

The machinery finds applications in various sectors: goldsmith / silversmith, galvanic, mining.

PERFECT FOR RECOVERY FROM EXHAUSTED GALVANIC AND ELECTROFORMING LIQUIDS

The two models differ in construction materials, according to the kind of usage: on acidic solutions or on basic solutions

IONS EXCHANGE RESINS UNITS

The recovery of metals using ion exchange resins is a technique used to retain precious metals, with a special focus on platinum and palladium, which can be found in the residual waters of aqua regia refining processes.

The BT-IONEX ion exchange resin systems are made up of vertical columns, made of glass or polypropylene, filled with special selective resins that capture precious metals (gold, silver, platinum, palladium and rhodium). The solution to be treated is passed slowly through the resin, for the time necessary for the absorption of the metals.

The efficiency / selectivity of the process is appreciable based on the type of resin used, among the various available on the market.

The recovery of the precious material occurs when the resins are exhausted, through the incineration of the resins.

Contact our technical department to evaluate the solution suited to your needs.