Mineral Processing Equipment : pyrite depression in copper flotation - A type of mining equipment that can trigger the development and change of the beneficiation technology industry. The main core machines are ball mills, rod mills, flotation machines, magnetic separators, etc.
Get A Quote1. method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used is supplied in the following sequence composition selective ...
More DetailsAbstract: active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. misreported pyrite into copper concentrates decreased the grade and recovery of copper. in this study, the effective parameters on the flotation process including grinding condition and chemical parameters were evaluated in order to decrease the active pyrite recovery by flotation. firstly, optical
More DetailsDepression of pyrite in porphyry copper flotation. 2014-12-18 • pyrite in the feed was cu activated , and adsorbed xanthate even at high ph (>10.5), becoming highly floatable • limited pyrite depression was achieved by increasing the ph with lime • na 2so 3and deta were effective in preventing/reversing the activation of pyrite in the presence of o2, reducing pyrite recovery by 50%.
More DetailsDepression of pyrite may be a problem becaus e the pyrite can be activated by copper ions generated during th e grinding ope ration [ 7] . some copper sulphide ores can be partially oxidized, also ...
More DetailsFirst let’s change the amount of the flotation depressants used. the valuable mineral that isn’t liberated from the unwanted mineral will begin to be depressed along with the waste. for the floatation operator, the change that will become most apparent is, that the color of the froth will begin to reflect more of the wanted mineral’s color. this is because the froth is becoming purer as ...
More DetailsFlotation of copper-molybdenum sulphide ores in seawater entails critical challenges such as selective recovery of molybdenite, effective pyrite depression, and reducing the lime addition required to reach highly alkaline conditions. it is essential that laboratory flotation tests aimed at solving ...
More DetailsHence depression of the gangue minerals in the flotation of sulphides from an artificial pyrite-quartz mixture. flotation . of . any given mineral is intimately bound up with the degree of dispersion or flocculation of that mineral in the pulp and it may be aaid(l4) that flotation is not (14) wark, i.i. principles of flotation.
More DetailsIn flotation tests, depression was achieved using non-toxic reagents and consequently individual copper, lead and zinc concentrates assaying 31.68% cu, 67.69% pb, …
More DetailsJan 01, 2017· "flotation of copper-molybdenum sulphide ores in seawater entails critical challenges such as selective recovery of molybdenite, effective pyrite depression, and reducing the lime addition required to reach highly alkaline conditions.
More DetailsMetal extraction processes. pyrite depression is usually reached at highly alkaline conditions an improved flotation test method and pyrite depression by an organic reagent during flotation in seawater by r.i. jeldres*, d. calisaya*, and l.a. cisternas* *59,484 flotation of copper-molybdenum sulphide ores in seawater entails critical
More DetailsOct 01, 2016· the depression of copper-activated pyrite in flotation by biopolymers with different compositions 1. introduction. pyrite (fes2), the most abundant sulfide mineral, is undesirably associated with minerals of economic... 2. materials and methods. pyrite …
More DetailsOct 01, 2016· the mechanism underpinning the depression role of lignosulfonate-based biopolymers on the flotation of un-activated pyrite and copper-activated pyrite has been investigated. in the flotation of un-activated pyrite at ph 5, dixanthogen is the main species responsible for pyrite flotation, the formation of which is accompanied by the reduction of oxygen or ferric hydroxides on pyrite surface.
More DetailsOf carbonaceous pyrite in copper flotation, depression of lead in lead-copper bulk separation (bulatovic, 2007) and depression of hematite and apatite in their reverse flotation against siliceous minerals (lin and burdick, 1988). dextrin dosages of up to 1,400 g/mg is reported.
More DetailsPromotes the oxidation of copper on pyrite as copper hydroxide, but has no effect on sphalerite. this increase in the amount of oxidation products on the pyrite surface and, as a result, decrease in xanthate adsorption may explain the depression of the flotation of pyrite in the presence of sodium sulfite. q2001 elsevier science b.v.
More DetailsPyrite depression in copper flotation published on february 5, 2018 february 5, 2018 • 1 likes • 6 comments. report this post; justin masapi follow process metallurgist at kansanshi mine solwezi.
More DetailsPyrite depression in copper flotation. 2020-10-1 the pyrite depression in a copper only flotation circuit is simple enough. if your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant’s ph up to the other side (right side) of the pyrite curve.
More DetailsPyrite depression the efficiency of pionera biopolymer versus sodium cyanide in copper recovery pionera biopolymers can offer a significant economic advantage in flotation of iron/sulfur bearing minerals in reducing smelter penalties, increasing grade and recovery of metallic concentrates.
More DetailsResearch addresses the consequences of using guar gum on pyrite depression in seawater flotation. the assays are carried out at ph 8 to emulate the typical conditions practiced in copper mining plants
More DetailsSelectively with depression of zinc and iron, followed by reflotation of the copper-lead tailing for recovery of zinc[9]. the polymetallic separation flowsheet of copper/lead bulk flotation–copper lead separation–priority floating zinc and pyrite from the bulk flotation tailings was …
More DetailsThe pyrite depression in a copper only flotation circuit is simple enough. if your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant’s ph up to the other side (right side) of the pyrite curve. the more flotation collector you have on, the higher you will need to increase that ph for effective pyrite depression. you also need to insure your pyrite ...
More DetailsXumeng chen, yongjun peng, dee bradshaw, effect of regrinding conditions on pyrite flotation in the presence of copper ions, international journal of mineral processing, 10.1016/j.minpro.2013.08.007, 125, (129-136), (2013).
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