Gold flotation process

Flotation is suitable for processing the gold-bearing sulfide ore which with fine and floatable gold particles, during flotation , sulfide ore act as the carrier of gold and is enriched to sulfide mineral concentrate . Flotation can be also used to process multi-metal which containing sulfide mineral and carbonic mineral . For the mineral insoluble that can`t be processed by amalgam or cyanidation , which should use a combined process that including flotation .

Grinding fineness , pulp concentration , reagent dosage , inflating volume , flotation time are the influence factors for flotation process . Normally , these process conditions should be confirmed by mineral processing test and practical experience .

Process flow

Flotation process has the most important influence for mineral flotation , to choose the rational process depends on the nature of ore , and should also consider the facility of operation , cost and the recovery .

For the gold mining that contains only one mineral with gross particles and embedded uniform  , usually use one step grinding and flotation process . For the gold particles have diversity sizes and embedded uneven in the gold ore , normally  put mercury plate and gravity equipment to pre-recover the gold particles in the grinding and classifier circuit before carry on the flotation process . These two process above are widely used in gold dressing plant. But for the gold ore with complicated mineral , flotation process will be more complex , for example, separation process in grinding , mud and sand separation process are all applicable in practice . For flotation in polymetallic ore , its process will be more complex , gold enrich normally in some concentrates , and is sold as an associated mineral .

Flotation equipment including all types of flotation machines , new type flotation column that has been used in certain gold ore .

XJK flotation machine is a traditional self-absorption flotation machine , JJF , SF, BF flotation machines are new type self-absorption flotation machine . Self-absorption mechanical agitation flotation machine is the most competitiveness at the moment ,  because it has simple structure , fulfilled air , dispersion uniform , lower rotating speed of vane , lower energy consumption , less abrasion characters . And this type equipment make it possible for upsizing the beneficiation equipment ,  among these , KYF flotation machine has the maximum volume tank that could reach 320 m³。

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