Putting this method into practice, the gold recovery was in the range of 90.0~102.5%, the relative error of its determination was no more than 16.0%, while the palladium recovery was within the scope of 111.0~129.0%, the relativeerror of its determination was no more than 30.0%.
Using flotation to concentrate sivler and gold. The head grade of silver and gold were 345 g/t,1.61 g/t,at the condition of grinding size of-0.074μm 75.5%,and adapt reagent,the flotation index of silver grade 7060 g/t,silver recovery 92.63%,gold grade 23.8 g/t,gold recovery 66.08% were got.
Through four tests,which obtained following performances:handling ability of rotary-kiln 11 t/d,roasting rate of removing sulphur 83.5%,Gold recovery 93.8%,Antimony recovery 93.01%,diesel oil consumption 29.7 kg/t,electricity consumption 133.8 kwh/t. These performances had a safe lead in China.
The experimental study and practice of the recovery of associated gold of Dexing Copper Mine were introduced,the factors influencing the gold recovery were analysed and suggestions for improving gold recovery were made in this paper.
This paper explains the purpose and importance of developing the coarse gold recovery device. It also presents the working principle and working process of coarse gold device,and as well as its application in gold dredging.
The investigations of ore properties,gold mineral process characters and factors effective to gold recovery were conducted by identifying ore through a microscope,analyzing gold content of each mineral and selective solution of gold mineral.
According to ore properties, using separation of slime and sand, flotation of coarseparticle, slime cygnidation as combined process, gained high gold recovery rate up to92.06%, of which about 40% gold can be producted in site.
Adopting flotation,concentrate toalkaline leaching pretreatment and cyanidation replaced the cyanidation and CIL,and only adding one set of flotation equipment,the gold recovery rate can be improved from 60% to 81%. 32kg gold would be more recovered per year,and the benefit would be increased by 2.13 million yuan.
Using mineralogy to optimize gold recovery by direct cyanidation
This approach has been applied in a number of gold operations, with the ultimate benefit of improved gold recovery.
Heap bio-oxidation and gold recovery at newmont mining: First-year results
Using mineralogy to optimize gold recovery by flotation
This study examines some physicochemical properties of two promising ion-exchange resins for gold, SR-3 and PAZ-8, when subjected to experimental conditions similar to those of a typical alkaline-chlorination gold recovery process.