ele-auex PRODUCTS & SYSTEMS
ele-auex PRODUCTS & SYSTEMS
- ele-auex PRODUCTS & SYSTEMS
Technology Overview
ELE-AUEX CHEMICAL AGENT PRODUCT
Ele-auex has commercialized its chemical agents O, E series for precious metal bearing materials leaching and their relevant equipment system and technology for Au/Ag/PGM recovery, respectively.
The table below lists precious metal recovery methods that can be effectively used in Eco-Goldex pregnant solutions.
| Precious metal recovery method | O Series Preg-solution | E Series Preg-solution | Notes |
|---|---|---|---|
| Carbon in Leach / Carbon in Pulp | |||
| Resin in Leach | |||
| Zinc cementation(Merrill-Crowe method) | |||
| Modified Zinc cementation method | |||
| Electrowinning + Active Carbon Adsorption | |||
| Chemical precipitation | |||
| Electrolysis |
Legend
(1) – Resin used in Ele-auex E series pregnant solution can only be processed with Incineration method, elute does not work well. activated carbon can’t be directly used for gold adsorption in E series preg solution
(2) – The modified zinc strips/powder method is dedicated to gold precipitation from Ele-auex E reagent-derived pregnant solution.
(3) – The chemical precipitation method is specially formulated for gold precipitation from the E series pregnant solution process.
(4) – The electrolysis method fits only to these continuous plated (Au/Ag) E-Scrap materials.
Among the five methods developed for precious metal recovery in E series preg-solution, each one of them is effective and can be used separately with a satisfying recovery rate. Clients can select their preferred method based on their experiences, their situations and resource availability.
PREFERENCED METHODS THAT WE RECOMMEND USERS SELECT:
MODIFIED ZINC CEMENTATION
For small-medium scale E-waste recycling operators and gold stripping hobbyists.
ELECTROWINNING + AC ADSORPTION
for regular and large-scale E-Scrap materials recycling operators. The advantage of this combination is that only one chemical (The E series) is used in the whole process from gold stripping to precipitation. The prerequisite condition of this method is that operator must have reliable e-scrap material source supply to ensure continuous operation and hence higher upfront investment.
CHEMICAL PRECIPITATION
For occasional gold stripping hobbyists. Features of this method are that the whole process is quick, preg solution temperature needs to be elevated to a certain range before effective gold precipitation initiates