24/03/2014 Construction Machine
You’ll find a lot more than ten varieties of tin minerals current, tin employed during the business mostly from cassiterite . Since the density of cassiterite more substantial (6.four ~ seven.1g/cm3), so the principle tin ore beneficiation solutions is re-election. Even so, due cassiterite brittle in nature and crushing, grinding , pick out another system, easy mudding , so severely by flotation system picked fine mud and fine-grained cassiterite tailings recovery has significant significance.vsi crusher manufacturers in india
A cassiterite flotation strategy
Cassiterite very easily by many fatty acids and their soaps collectors . Hence, oleic acid, tall oil , oxidized paraffin soap , nylon 1010 scraps , alkyl sulfates, alkyl sulfonate, sulfonamide butanediamide etc., can be utilized as collector cassiterite . Experimental research have proven that arsenic acid with toluene , benzyl arsenic acid and styrene phosphonic acid flotation of cassiterite , and in some cases can be superior indicators.
When using oleic acid as collector cassiterite flotation , pH worth is generally about 9.0 to 9.five. Since the toluene ARSACETYL cassiterite flotation collector , the rougher the pH worth is generally from five to six , and capabilities a pH value to two.five to 4.0. When adjusting the pH of the pulp , normally sodium hydroxide , sodium carbonate and sulfuric acid along with other agents .
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Cassiterite flotation , it is actually normally also added inhibition connected silicate mineral water glass with 6 polyvinylidene sodium carboxymethylcellulose inhibition of calcium and magnesium minerals, plus oxalic acid suppression wolframite .
Flotation components are typically less than 0.04mm tailings re -election , the very first removal of sludge is less than 0.01mm . If the veins of tin ore flotation , often related sulfide minerals iron , arsenic, antimony, lead, copper, zinc as well as other metals. In this instance, utilize the sulfide mineral activator to start with surfaced sulfide minerals , and cassiterite flotation steer clear of sulfide pollution cassiterite concentrate.
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B cassiterite flotation instance
A place tin ore is higher, mesothermal cassiterite sulfide deposits. Mineral composition is complex, metal minerals pyrrhotite , magnetite , pyrite, arsenopyrite , bismuthinite , galena , sphalerite and chalcopyrite , non-metallic minerals are carbonates, silicates salts and halides. Cassiterite is tan and black , was embedded micro-fine cloth , most during the sort of powder aggregates disseminated pyrrhotite , in addition to a compact portion was distributed in bulk granular magnetite and skarn minerals. Grain greatest 0.55mm, the smallest 0.002mm, commonly among 0.15 ~ 0.02mm. Cassiterite flotation in the ore as desulfurization, iron and shaker coarse cassiterite tailings recovery after .
Tailings dewatering shaker innovative thickener , tailings dewatered by centrifuge lost . Focus thickener centrifuge dewatering and then by last- stirred tank dosing mashing . Yang water hydroxamic acid as collector , sodium carbonate slurry to change the pH value of 7 to 8 , tannin as inhibitors, the 2nd oil as foaming agent. After a rough , two sweep , 3 fine along with a fine sweep elected tin concentrates. Tin ore containing one.0% to 1.three percent flotation concentrate grade of 1.3% to sixteen percent recovery charge of 72% to 76 percent. Manufacturing practice exhibits lower toxicity of salicylic hydroxamic acid , entirely in a position to exchange the highly toxic arsenic acid , drastically decreasing drug production and use of environmental pollution troubles.
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