Xinhai Gold processing project in Mali Africa

Gold processing project in Mali Africa can be an EPC service project. It turned out signed by the African customer and Xinhai group when he stumbled on China to have an inspection. The consumer was originally to work with.. .method. But good ore dressing experiment done by Xinhai group customer, they finally think the entire mud cyaniding carbon plasma process is best choice. The project is extremely evaluated from the African customer. The subsequent contents are beginning of processing plan which was done by Xinhai mining design institute and beneficiation research.

Firstly, foundation of beneficiation scheme design
A, The relevant information and processing procedure collected inside field.
B, The agreed capacity: 1000 t/d.
C, The washability test report was presented with by Xinhai ore beneficiation research institute.
D, Additional unknown conditions temporarily processed according to conventional processing procedure.
Secondly, the structure scale, product and operation system
A, The modern mill production scale is 1000 t/d, implements the device of continuous operation, lasting for300 days annually.
B, Mineral extraction methods: Dump leaching the coarse grains and taking advantage of the complete mud cyaniding carbon plasma method process the fine particles, finally while using gold wet smelting process.
C, Product program: 99.9% gold bullion.
Thirdly, the beneficiation test
The client provide two ore samples, respectively thought as PY - 2 and PY - 3, PY - 2 ore sheet is coarse particles and PY - 3 ore sample is okay clay particles. Its small laboratory test. We draw the subsequent conclusions with the contrast of different sorts of test schemes like heap leaching, gravity separation and all of mud cyanidation method.
The coarse ore PY-2 is suitable for heap leaching technique to recovery gold. Undressed ore heap leaching use the sodium hydroxide to safeguard alkali with dosage of 8 kg/t; Dosage of sodium cyanide is 4 kg/t, heap leaching time is 168 hours, the leaching rate of gold is 88.55%.
The fine clay particles PY - 3 is correct for the mud recycling gold cyanide solution. When grinding fineness of undressed ore cyanide is- 200 mesh and 82.88%, calcined lime is utilized to defend the bottom, the amount of calcined lime is 8 ~ 9 kg/t; The dosage of sodium cyanide is 1 kg/t, cyaniding for 24 hours along with the leaching rate of gold is 88.00%.
Good above data and the practical situation in the mine and site photo, Xinhai beneficiation research institute made the first stage on the project:
By screening and grinding cyanide heap leaching process to recovery gold, the undressed ore heap leaching way is useful for the coarse grain and fine grinding one utilize cyanide test method. As soon as the separation of mine ore, use heap leaching method to process the coarse grain, the leaching rate of gold can be had at 66.67%.The fine one can possibly be cyanided, and making use of 9.5 kg/t dosage of calcium oxide to protect alkali round the clock, the leaching rate of gold can be had at 85.57%. Total gold recovery rate is 85.17%. The following picture is the procedure engineering flow scheme for African Mali project expressed by Xinhai.
This would be the screening classification part, by way of a feeder the undressed ore were fed into your belt conveyor then transported for the double layer vibrating screen for screening. Heap leaching the screened out + 30 mm and + 5 mm one, as well as the screened out- 5 mm one were listed in the cyclone classification machine firstly. Over time of grinding, the bottom flow from the cyclone alongside the overflowed ones then glance at the complete mud cyaniding carbon adsorption systems. Using the research into the core sample as well as the practical situation from the site, the heap leaching production is 1600 t/d, 10thousand ton for 2 months and many types of-slimed cyaniding is 2400 t/; Cyanide leaching analytic the electrolytic parts, as well as the - 60 mesh ones were transported to the leaching tank for leaching adsorption through the pum.
For heap leaching parts, throughout the steps of heap building, spray and expensive liquid adsorption, the gold mud was obtain by parsing and electrolyzing the gold-loaded carbon. For wed smelting parts, analytical electrolytic gold mud are  over the melting system regularly, and finally get the gold of 99.9%; For tailings parts, damming the first years tailings plainly and backfilling the other year plus the later tailings.
The planning passed over the practice in the African clients inspection and achieved the expected index. The African client is quite enthusiastic about that.

Refer to the website:
http://www.miningclassifier.com
http://www.floatationmachineprice.net