In general, the gold recovery method of gold tailings is mainly the all-slime cyanidation CIP method. It is the recovery of residual gold particles from tailings by using the property of gold soluble in cyanide. The gold recovery for large capacity and low-grade gold tailings is common heap leaching.
By the way of continuously technology research and development, design and research institute get remarkable achievement in gold mineral processing technology, at the same time, the research achievement in refining of nonmetal, various oxide ore recovering, comprehensive utilization etc. is also in international first-class level. This process is suitable for processing quartz vein gold-bearing oxide ore. The ore is re-selected first, and the concentrate obtained from the re-selection is directly smelted; the re-selected ore and tailings enter the cyanide operation. See full list on prominetech.com Gold is produced in quartz vein ore in a state of fine or fine particle dispersion. The ore has a deep oxidation degree and does not contain Cu, As, Sb, Bi and carbon materials. Such ore is most suitable for the all-slime cyanidation process. The carbon slurry method is one of the main methods for extracting gold and silver. Using this method to extract gold has the advantages of high recovery rate, strong adaptability to ore, and ability to produce gold, so it is widely used. Gold extraction by carbon slurry method consists of four steps: leaching of gold-containing ore in cyanide solution, adsorption of activated carbon, desorption and electrolysis of gold-loaded carbon, and smelting of gold mud. The disadvantage of this gold extraction method is that cyanide is a highly toxic substance and easily pollutes the environment. In practice, environmental protection and governance must be strictly done. See full list on prominetech.com This process first uses gravity separation to recover the coarse-grained gold in the ore, and gravity separation of tailings for flotation. This process is suitable for processing gold-bearing oxide ore and ore with associated free gold. The recovery rate obtained with this process is higher than that of a single flotation process. See full list on prominetech.com This process has the following two solutions: (1) Flotation-concentrate cyanidation process. It is suitable for processing quartz vein gold-bearing ore and quartz pyrite ore that have a close symbiosis relationship between gold and sulfide. (2) Flotation-roasting-cyanidation process. This process is suitable for processing floatable minerals that are harmful to cyanide. See full list on prominetech.com This process is suitable for processing sulfide gold-bearing quartz vein ore with finer gold particles and high floatability, as well as polymetallic gold-bearing sulfide ore and carbon (graphite) ore. See full list on prominetech.com This process is mainly based on flotation, which is suitable for ore that has close symbiosis of gold and sulfide and can only be recovered by smelting. It is also suitable for gold-bearing quartz vein ore with uneven thickness and fine distribution, and obtains a higher recovery rate than single flotation. See full list on prominetech.com Heap leaching is a type of gold extraction by cyanidation, which is suitable for processing low-grade gold-containing ores. The main advantages are simple process, low investment and low cost. See full list on prominetech.com This process is suitable for processing quartz vein primary deposits and oxidized ore containing coarse-grained gold. The amalgamation method for gold extraction is an ancient and common method of gold selection. In economically backward areas, the amalgamation method still occupies a very important position. Since gold mostly appears in a free state in ores, in countries with a relatively late mining development, some gold particles in many ores can be recovered by amalgamation method. Practice has proved that the use of amalgamation method to recover part of the gold particles in advance in the gold selection process can significantly reduce the loss of coarse gold in the tailings. The theoretical basis of gold extraction by amalgamation method is that mercury can selectively wet gold particles and then diffuse into the wetted gold particles. To the above 8 types of processes are principle processes, and their internal structure should vary according to the type and nature of the See full list on prominetech.com People also ask What kind of Technology is used to recover gold tailings? The iron recovery from gold tailings can adopts common processing technology such as gravity separation, magnetic separation, flotation, roasting magnetic separation and their combined processing technology. Gold Tailings Reprocessing Technology
The present invention discloses a gold mineral processing technology. In the technology, after closed-circuit crushing is carried out at two stages and a half, and double closed circuit grinding is carried out at two stages, differential flotation and concentration are carried out; after separation job of a coarse and a scanning is carried out to the tailings of the present invention, cleaner tailings and scavenger concentrate are concentrated together, ores are merged, and are ground