CN101234363A

The invention relates to a method to produce high grade sulfur concentrate by using low grade pyrite ore, which takes pyrite ore containing 8 percent to 25 percent sulfur as raw material which is smashed and milling ground to allow the pyrite ore to be dissociated from rocky mineral monomer. Ore slurry is arranged on spiral chute to obtain rough concentrate with the sulfur containing …

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Heavy-floating joint separation method for producing high-grade sulfur

A high-grade sulfur concentrate, sorting technology, applied in flotation, chemical instruments and methods, solid separation, etc., can solve the problem that it cannot be directly used as high-sulfur products, the sulfur grade of gravity-selected concentrate is not high, and the process setting is complicated, etc. problems, to achieve the effect of fine particle size, low production …

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National Technical Reports Library

The flow sequence consists of dissolution of metal values by electrooxidation, liquid-solid separation by thickening, acidification and chlorate ion removal by sulfur dioxide treatment, solvent extraction to concentrate the molybdenum and rhenium, separation of molybdenum and rhenium by carbon adsorption, and metal recovery by crystallization.

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EP2695519A2

Disclosed is a composition comprising (a) a pesticidally effective amount of mineral oil; and (b) a suspension concentrate comprising particulate sulphur suspended in an aqueous medium and a method for using the same for the treatment of a locus. EP2695519A2 - Stable formulation - Google Patents ... 239000002562 thickening agent Substances 0. ...

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Extraction of Copper from Sulfide Copper | MiningPedia

The specific steps are to add a large amount of lime to suppress the pyrite first, give priority to extracting the copper from sulfide ore, and the tailings obtained can be used as qualified Sulphur concentrate. The flotation process is shown in the figure below. (single flotation of copper-sulfide ore) 2. Mixed-priority flotation

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Concentrate Dewatering & Thickening

The concentrate from the flotation section usually contains only 20 to 30% of solids as it leaves the cleaning machine and must be dewatered before being sent to the next department. The operation of dewatering is performed in two stages.

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CN103350032A

3. strontium according to claim 1 ore deposit beneficiation method is characterized in that the step 6) flotation is selected sulphur to comprise and selected sulphur, concentrator is put in the sulphur ore deposit of selecting, and passes through filtering means dehydration again, obtains at last the sulphur concentrate.

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G. YONDON: A COPPER CONCENTRATE PROCESSING …

The decision regarding processing of elemental sulfur or sulfuric acid from sulfur dioxide are well documented in research reports and meeting minutes. The Investment Agreement between the Government of Mongolia and Rio Tinto LLC includes a provision for researching the construction of a copper concentrate smelter based on the Oyu Tolgoi deposit.

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CN112474035B

The invention discloses a production process for obtaining sulfur concentrate from copper tailings, which comprises the following process steps: the ore pulp after the copper tailings are thickened enters an ore drawing pool to form a thickener bottom liquid; conveying the bottom liquid of the thickener to a copper tail dealkalization slurry pump by a lining rubber pump, then conveying …

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CN101549322B

The objective of the invention is to provide a process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate, using magnet-floating combination process or magnet-gravity-floating combination process to produce sulphur iron ore concentrate containing more than 90% sulphur and iron, using the sulphur iron ore concentrate to produce sulphuric acid, getting …

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EP2629606A2

a generally known problem of water-based Claus sulfur suspension concentrate formulations is that, during storage, sediment in the container tends to form a coalescent layer that cannot be re- suspended even when the container is shaken vigorously. Also, clusters of sulfur particles can be formed that block spray nozzles.

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Cobalt Metallurgy

Nickel sulfide concentrate generally contains 4–5% nickel and 0.1–0.3% cobalt. In the pyrometallurgical smelting of nickel, since the chemical affinity of cobalt for oxygen and sulfur is between that of iron and nickel (see the oxidation potential diagram), in the matte converting by P-S converter of high nickel matte, the oxidation degree of iron in the matte can be controlled …

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CN109604045A

The invention discloses the methods that lime and beneficiation reagent dosage are reduced in copper ores with high sulfur content mining production, Tailings Dam obtains the overflow water that pH is 6 after precipitating and aeration and leads back into grind grading as mill mining water, the overflow water of the copper thickening pond and sulphur thickening pond enters …

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Acidithiobacillus ferrooxidans and mixed Acidophilic …

The percentage of sulfur content in iron concentrate, a raw material for steel production, directly affects the corrosion rate of steel structures and the reduction behavior of iron-bearing materials, as well as the production cost [1], [2].In the steelmaking industry, iron concentrate with a sulfur content of less than 0.3% is in need.

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CN102626676A

The invention discloses a method for floating high-grade sulfur concentrate from lead-zinc tailings by a flow separation and speed separation method. According to the invention, the flow diversion and speed division method is adopted for carrying out the flotation on iron pyrite according to floatability difference characteristics of the iron pyrite in the lead-zinc tailings so as to obtain ...

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CN101549322A

The objective of the invention is to provide a process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate, using magnet-floating combination process or magnet-gravity-floating combination process to produce sulphur iron ore concentrate containing more than 90% sulphur and iron, using the sulphur iron ore concentrate to produce sulphuric acid, getting …

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Liquid shampoo containing sublimed sulfur and salicylic acid …

The invention discloses a liquid shampoo containing sublimed sulfur and salicylic acid. The liquid shampoo containing sublimed sulfur comprises a surface active agent, a wet storage agent, a chelating agent, a conditioning agent, a thickening agent, a pH conditioning agent and deionized water as well as the sublimed sulfur, the salicylic acid, borax and carbopol ETD2020.

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Efficient recycling method of sulfur concentrate

The invention discloses a high-efficiency recycling method of sulfur concentrate, and relates to the field of metal metallurgy. The invention aims at sulfur concentrate and adopts the existing mature technology to prepare sulfuric acid by roasting in a fluidized bed furnace, a sulfuric acid cinder discharge port is connected to a lock hopper in a Finmet process system, 2-7% of desulfurizer …

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How is Copper Made? A Complete Guide

The sulfur dioxide is captured and recycled into sulfuric acid for industrial use. The final product, blister copper, has a purity of about 98% and is prepared for further refining. ... For sulfide ores, pyrometallurgy involves crushing and grinding the ore, froth flotation to concentrate the copper minerals, thickening to remove excess water ...

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Concentrate Dewatering & Thickening

The size of a concentrate thickener is determined by the tonnage of solid material to be dewatered, the amount of water in the pulp, and the settling rate of the solids. In the absence of specific data, it is usual, for the purposes of rough calculations, to allow 10-15 sq. ft. of tank area per ton of dry concentrate produced per 24 hours.

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Lead-zinc flotation: A review on nearly six decades of …

Increasing the grade of sulfur concentrate to 42.53 % with the help of dezincification circui. Reducing the installed capacity by 180 kW. And increasing the grad of zinc concentrate to 44.99 %. The drawback of the process is that the sulfur recovered in the sulfur concentrate is about 22 % less than that produced by the iso-flotability process.

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CN112619881A

A copper-lead-zinc-sulfur bulk concentrate separation method comprises the steps of bulk concentrate cleaning pretreatment, gravity separation of lead-sulfur and copper-zinc minerals, high-alkali regrinding separation of the lead-sulfur minerals, acid regrinding cleaning of the copper-zinc minerals, efficient copper-zinc separation and the like.

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Study on recovery of copper and zinc from cyanide lean …

incoming gold concentrate enters the pre-leaching flotation process after grinding. In flotation, the gold concentrate is divided into high copper concentrate, high sulfur concentrate and low sulfur concentrate. After thickening and filtering, the three products respectively enter the corresponding cyanidation leaching system. The

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Tailings Management With Paste Thickening

7. Moly Thickening/Dewatering. A high rate thickener thickens the moly concentrate. A vacuum drum (or other) filter dewaters the moly concentrate further before refining or storing until sale. *Moly is found as Molybdenite (MoS 2), and copper is in various combinations with sulfur (e.g., Chalcocite (Cu 2 S)).

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