LABORATORY TESTING
Before industrial application, suitable leaching conditions must be determined on a representative sample of the specific ore. The result depends on mineralogical composition, degree of grinding, gold, copper, arsenic and sulfur content, and other components.
Representative sample, crushing and grinding to the required particle size.
JinChan dosage, pH, pulp density, temperature and leaching duration.
Determination of gold recovery, reagent consumption and residual gold content in the tailings.
Comparison of several dosage and process-duration options.
The laboratory result must be confirmed by pilot-scale or industrial trials at the plant site.
PUBLISHED RESEARCH
Leaching performance depends on mineralogical composition, degree of grinding, reagent consumption, pH, time and other parameters. Below are results from selected published JinChan studies on specific ores.
The results apply only to the tested samples and test conditions and do not guarantee similar recovery on another ore.
PEER-REVIEWED ARTICLE
FEATURED STUDY
Hydrometallurgical processing of gold-bearing concentrate
The study of concentrate from the Dzhangyr deposit reported high gold and silver recovery into solution followed by gold sorption onto ion-exchange resin. The results apply to the specific concentrate tested.
PEER-REVIEWED ARTICLE
Study of technological samples of gold-bearing ore using JinChan and sodium cyanide.
In a separate NaCN test, 90% Au and 88.36% Ag were obtained at a consumption of 1.4 kg/t and a duration of 36 h.
These parameters apply only to the conditions of the published study and are not a universal JinChan operating regime.
PEER-REVIEWED ARTICLE
After flotation concentration, the concentrate was subjected to oxidative roasting, followed by comparative leaching.
Under the studied conditions, after flotation concentration and oxidative roasting, recovery with JinChan, YX500 and NaCN was approximately comparable.
PEER-REVIEWED ARTICLE
Processing flowsheets for finely disseminated refractory sulfide ore were studied. The most effective option combined gravity concentration with subsequent leaching of the tailings.
The reported figure relates to the combined flowsheet studied, not to the effect of a single reagent. Specific operating parameters are not stated without verification against the full publication.
PEER-REVIEWED ARTICLE
88,55%JinChan, 200 g/t
88,73%NaCN, 200 g/t
89,87%JinChan, 300 g/t
At the same consumption of 200 g/t, JinChan and NaCN gave similar results. At 300 g/t JinChan, 89.87% Au recovery was obtained under the studied conditions. The results apply to the specific ore and conditions studied by the authors; 300 g/t is not a universal recommended JinChan dosage.
PEER-REVIEWED ARTICLE
In both comparisons, JinChan consumption was higher than NaCN consumption. The results apply to the specific Çukuralan and Kaymaz samples tested and are not standards for other ores.
On the ore studied, JinChan showed slower kinetics: about 48 h were required to reach the target recovery of approximately 97%, while NaCN reached a comparable level in 24 h.
This conclusion applies to the ore and conditions examined in this conference study.
TEST SETUP
Material representativeness, crushing, grinding and preparation of comparable laboratory test portions.
More about ore preparation
Verification of the selected JinChan operating conditions under controlled conditions with the actual process parameters recorded.
Comparison of initial gold grade, solution data, solid residue, reagent consumption and kinetics, where studied.
How to evaluate resultsPhotos provided by Guangxi Senhe High Technology Co., Ltd.
TEST PROGRAM
Representative sample, crushing and grinding to the particle size defined by the test program.
JinChan dosage or concentration, pH, pulp density, duration and temperature where specified by the particular test program.
Gold recovery, actual reagent consumption and residual gold content in the solid residue.
Several tested dosages, duration and other program parameters.
LABORATORY-STAGE RESULTS
Laboratory results must be confirmed by pilot-scale or industrial verification on the plant material.
More about moving to industrial verificationINPUT DATA
The required amount of information is clarified after reviewing the initial material data.
WORK SEQUENCE
PRELIMINARY ASSESSMENT
Before industrial application, JinChan operating conditions are selected based on laboratory testing of a representative sample.
JINCHAN ENQUIRY
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