Flotation of Gold and GoldBearing Ores ScienceDirect
A recent study of a number of flotation plants found that floated gold grains in the concentrate had a greater concentration of silver and sulfur than the gold remaining in the tailings implying that they assisted gold flotation Chryssoulis 2001 . Laboratory flotation tests on a flotationplant tailing sample using NaHS and silver ions
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Methyl Isobutyl Carbinol MIBC Flotation Frother CNFREE
Used as the frother of the flotation for copper lead Zinc iron sulfide ores nonsulfide ores and nonmetallic mineral with strong and stabile foam both with certain collector especially having visible collector effects on talc sulfur graphite molybdenite and cool minerals. Online Service.
Frothers an overview ScienceDirect Topics
Iron hydroxide coatings hamper gold flotation but are hardly the main cause for free gold rejection. At Batu Hijau manganese hydroxides were strongly enriched on the rejected free gold particles. In most flotation plants sulfur and silver on gold grains in all likelihood in the form of silver sulfide promoted gold flotation.
SRU Sulphur Recovery Process
The flotation product can then be retreated by autoclave with much higher recovery of pure sulphur. The lower grade of the flotation concentrate is due to the presence of a sulphur coating on particles of gangue rendering them floatable. Reagent Combinations. Usually the use of an alcohol frother is sufficient as sulphur is selfpromoted.
Gold Pyrite Pyrrhotite and Arsenopyrite Recovery
When the goal of a pyritic gold flotation is to produce sulfuric acid by roasting the concentrate the need to maintain sufficient pyrite grade for selfroasting can result in significant gold losses. Achieving high gold recovery and high sulfur pyrite concentrate grade are usually incompatible goals and like so many other flotation recovery
High Gold Recovery Results from Flotation Test Work at Nalunaq
Table 1 summarizes selected results from the historical flotation test work programs. The 1997 flotation tests were undertaken on a relatively highgrade sample 23 g/t gold and produced highgrade concentrates gt1000 g/t gold with flotation recoveries between 68 and 82. Only rougher flotation was undertaken in the 1997 test work program.
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A good collector for gold and base metals. Has been used successfully for the flotation of gold bearing sulphide ores especially synergistically with xanthates where it provides extra gold and sulphur recovery at high grades. DSP 002 Orica Mining Chemicals
Characterization and recovery of gold associated with fine
Composition of the gold particles was found to vary. Table III Conditions for the third flotation experiment RPM 600 Airflow 4 SLPM pH 9.4 Carbon flotation Gold flotation Stage 1 2.9ml/L kerosene 0.3kg/kg PAX 3 drops MIBC 3.1g/kg aerofloat 208 Stage 2 5.8ml/L kerosene Frother addition 2 drops MIBC Stage 1 3 drops pine oil