Electrochemical leaching solution, arsenic acid ions was 6 ~ As
As seen from the data in Table 2 , when the concentrate I is treated according to the process flow specified in the following figure , the recovery rate of gold is the same level as that of the treatment according to the torrefaction process, and for concentrate II and concentrate III, The gold lost with the cyanide tailings is lower than the calcination process. Dropped by 3/4 .
Expanding the cost of processing the concentrate in the electrochemical leaching process The technical and economic calculations show that the various costs depend on the material composition of the concentrate. The content of pyrite in the concentrate is greatly affected. For low-sulfide concentrates, the electrochemical leaching process is economically superior to the roasting process, while for concentrates containing about 15% pyrite , the cost of electrochemical leaching is roughly equivalent to the cost of roasting.
The cost of processing concentrate II is about 66.1 rubles per ton, while that of concentrate III is 53.3 rubles per ton. The cost of processing the gold - arsenic concentrate in accordance with the roasting - baking cyanidation process is 61.4 rubles / ton.
For the treatment of concentrates with high pyrite content (concentrate 1 ), electrochemical leaching is economically uneconomical. However, for some products containing dipyrite and pyrite, the electrochemical leaching process is economically feasible.
Knot    s
For the refractory gold - arsenic concentrates with different arsenic pyrite and pyrite content , electrochemical leaching is effective. After electrochemical leaching of the concentrate, 72-87% of arsenic pyrite and 45~53% of pyrite can be decomposed, so that the tailings gold content after cyanidation of the residue can be compared with the tail treated by the roasting process. The mine has decreased or is roughly equivalent.
Coeffort has been supplying steel equipment, structure manufacturing and Installation service from the year of 2013. We focus on producing the highest quality mechanical steel structures and conveyor equipment with advanced steel fabrication processes and machinery. Our commitment to quality metal products, superior customer service and ability to manufacture and assemble has earned us the trust and recognition from our clients in Australia and Asian countries.
Coeffort's Fabrication Service includes but is not limited to:
- Structure Engineering Design and Shop detailing services
- Industrial Conveyors, belt conveyor, Chain Conveyor, Bucket Elevator, Screw Conveyors etc.
- Solid / Liquid Separation Machine, Thickener and Vacuum Belt Filters
- Heavy industry workshop building structures
- Industrial process plant buildings, trusses, trestles.
- Mining equipment, plate works (chutes, hoppers, bins, tanks etc.)
- Non-pressure vessel/tanks.
- Pipe spools fabrication.
- Steel Structures & Equipment Installation
Our facility and production capabilities include:
- 15,000 m2 purposed- built Factory.
- Approximately 50 staff capable of factory work
- Overheads Cranes with Maximum capacity of 32 Tons, height under the hook of 8m
- CNC Cutting Machine, Shearing Machine ,Bending & Rolling Machine etc.
- Shot and Sand Blasting Machine with painting facilities
Quality Control System
We are ISO9001 qualified workshop.
DOC Control as per in-house procedures.
MDR Doc – ITP, Raw Material Traceability, Welding Procedure, Welder Qualification, NDT, Dimension and Trail Assembly Report, Painting Inspection, are our standard QA docs.
Welding Quality Control
Welding Standard: AWS D1.1, AWS D1.6, or other International Standard
Welder Qualification: certified as per AWS
AWS Certified Welding Inspector (CWI)
Painting Quality Control
We have contracted Painting inspector with NACE II qualification to guarantee painting surface preparation and painting quality.
Our aim is to be a leading customized steel equipment manufacturing supplier in China through our strict QA systems.
Our Facility
Heavy Steel Fabrication,Steel Building Fabrication,Steel Bridge Fabrication,Steel Duct Fabrication
Quantum Conveying Systems Yangzhou Co.,Ltd. , https://www.yzconveying.com