Concept and adaptability of diafiltration cyanidation

The diafiltration cyanidation method is a method in which gold in the ore is leached by permeating a cyanide solution through a sand layer installed in a leaching tank equipped with a filter bottom.

The diafiltration cyanidation process is suitable for the treatment of ore, loose and porous materials and slag. This method can handle -10 mm Material. This method is most suitable for the ore containing clay , slime and finely ground materials. Therefore, before using the percolation method to treat such ore, the mud in the ore must be separated because these fine mud layers can make the leachate However, the rate of de-filtration or percolation is very slow, and they are suitable for leaching gold in the state of pulp.

Compared to the stirred cyanidation process, the diafiltration cyanidation process is a simpler and less expensive method of gold extraction. The advantage of this method is that the leaching agent consumes less, consumes less power, and has less capital investment. Its disadvantage is the long operating time, equipment and facilities large area, is not completely washed, lower gold extraction rate, typically 60 to 80%.

When the ore is treated by diafiltration cyanidation, the extraction rate of gold depends on the size of the gold particles, the size of the ore, the percolation rate, the working time, the cyanide concentration, the degree of tailings cleaning, and the cyanidation properties of the ore. Gold-bearing quartz ore processing method by diafiltration, gold extraction rate 85 ~ 90%, but not fine ore crushing or fractional insufficient, the gold extraction may decrease to 60%.

Metal sheet Press Feed line is a metal forming process widely used to produce parts for various industries, such as automotive stamping, electronics stamping and appliances stamping and etc.


In the metal sheet stamping industry, we believe that the various types of Coil Handling Equipment are provided by Mayflay. Compact Press Feed Line is one such type. Understanding the complexities of each piece of equipment and how it can be tailored to your business can help you select the right company to help with your needs. We can help you find new or customized equipment built to your specifications to meet your demands.


Press Feed lines with a programmable controller PLC is to an Automatic Feeder Machine which feeds raw metal material through the progressive die of the Stamping Press .The metal sheet strip is feed into the automatic feeder after it has been uncoiled from a coil and put through a roller straightener or leveler. Generally, a loop is created prior to the stamping process so a constant rate of strokes per minute can be obtained on the stamping press.


A press must position the material correctly into the die â€“ front to back, side to side and square it with the tool. Along with that, it must also move the proper amount of material into the tool. In some cases, it must gently handle pre-painted coil or those requiring high surface quality coil to prevent scratching it.Usually, the PU rubber roller of straightener and feeder machine is best choose to prevent scratching the metal surface..


A tool or progressive die is mounted on the stamping press.Progressive die stamping consists of several individual work stations, each of which performs one or more different operations on the part. The part is carried from station to station by the stock strip and is cut out of the strip in the final operation.


Over the last several decades, major technology shifts in how Stamping Presses are fed have occurred. As press feed technology continues to evolve, stampers are realizing increased processing speeds, improved processing flexibility, easier setup, better quality and reliability, and numerous other positive end results. 


With over 20 years of experience and a real focus on customer satisfaction, you can rely on mayflay company for your next project. We provide a professional renovation and installation services with a real focus on customer satisfaction. works directly with the client to determine the specifics regarding their needs. Rest assured, we have the right product to meet the solutions you require.Big or small, economical or efficient, a quick consultation will allow Mayflay to find the right fit!


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