Centrifugal extraction solvent extraction of precious metal process
Solvent extraction process, the metal in the 1840 s began to develop research, for the next hundred years solvent extraction only find applications in analytical chemistry.
In the 1940 s, with the development of the atomic energy industry, as a result of the need of nuclear fuel, solvent extraction of uranium factory completed and put into operation.
In the 1980 s, it is mainly used for rare earth metals, non-ferrous metals, rare and high melting point metal, scare metal, biological engineering, pharmaceutical engineering, etc.
Solvent extraction in basic research, technology development, engineering design, etc, developed a number of liquid -
Fluid extraction, supercritical fluid extraction, aqueous two-phase extraction, microemulsion extraction, membrane extraction, extraction, microwave extraction of electric field, bubble extraction, etc.
extraction process: equipment:. cwl -
M type centrifugal extraction machine.
Gold liquid centrifugal extraction machine -
With extraction agent (
Are generally of agents)
Pour the extractant in gold liquid -
Using centrifugal extraction machine centrifugal separation -
Liquid phase separation and released load metallographic -
Load metallographic washing -
After washing load gold instead extraction or restore -
Heating a sediment -
Clean precipitation sponge gold, remelting out gold -
Proposes the gold extraction agent after extraction bottle washing in -
Storage can be used repeatedly.
150 series centrifugal extraction machine working principle:
weight two-phase mixing and mass transfer process solution according to certain proportion respectively from two feeding tube into the drum and shell type ring gap formed between the mixed zone, with the aid of the rotation of the drum, through the turbine disc and the impeller to make two phase mixing and dispersing quickly, two phase solution fully mass transfer.
Complete mixing and mass transfer process.
Two phase separation process
mixture under the action of vortex disk into the rotary drum, in the plate to form the bulkhead area, mixture quickly with synchronous rotary drum, in under the action of centrifugal force, the heavier than major phase fluid in the process of upward mobility and gradually away from the drum center on the drum wall;
Small proportion of liquid phase gradually away from the drum wall and on to the center, after clarification of two phase fluid respectively through their weir plate into the collection chamber and the tube was closed to derivation, respectively, to complete two phase separation process.
Description of 150 series centrifugal extraction machine performance characteristics: 1.
150 series centrifugal extraction machine used in the extraction process of small and medium-sized enterprises, can be single stage can multistage continuous counter-current operation, can be designed and manufactured according to customer needs we will be able to drum diameter of 50 mm -
Any centrifugal extraction machine, 150 mm. cwl -
The 150 series centrifugal extraction machine drum diameter is 150 mm.
This device is speed used system wide range high separation factor.
Mainly used in the extraction process of small and medium-sized enterprises, such as: chemical extraction process, washing process, Chinese herbal medicine and plant extraction process.
Can according to customer's different system requirements and material contact part machining centrifugal extraction equipment is made of different materials: stainless steel / 304/321/316 l / 904 l/PP/PVC/ptfe/titanium alloy materials.
Mainly used in the extraction process of smes, before the use of industrialization according to the data analysis of small and pilot different system, for the application of large equipment of industrialization in the actual production.
150 series centrifugal extraction machine technical parameters: