10results about How to "Realize flotation separation" patented technology

The present invention discloses a flotation recovery method for sulfide ore in cyanide tailings, which belongs to the technical field of cyanide tailings treatment and solves the problem that sulfide ore in cyanide tailings is difficult to recycle in the prior art. The flotation recovery method uses hydrophobic organic polyamine as a multidentate ligand to react with Fe in an aqueous solution. 2+ Cu + The stirring reaction is performed to obtain a hydrophobic organic polyamine-metal ion complex; the cyanide tailings are treated with the hydrophobic organic polyamine-metal ion complex and then flotated to obtain sulfide ore. The method of the present invention effectively realizes the recovery and utilization of sulfide ore in cyanide tailings.

The invention provides a method for inhibiting sulphide ore flotation by utilizing galvanic corrosion of scrap steel-sulphide ore. The method comprises the following steps: firstly, cleaning the surface of a scrap steel material; the waste steel material is easy-to-corrode waste steel; adding beneficiation backwater into a sulphide ore sample to be treated to prepare sulphide ore pulp; the sulphide ore pulp is placed between the two pieces of waste steel obtained after cleaning treatment, the sulphide ore pulp makes full contact with the clean surfaces of the waste steel, beneficiation backwater is added into the sulphide ore pulp to be treated, a galvanic corrosion effect is fully generated between an ore sample and the waste steel, and a sulphide ore sample obtained after the galvanic corrosion effect is obtained; and finally, the obtained sulfide ore sample is transferred into a flotation tank for flotation, the stirring speed is controlled to be constant, a flotation reagent is added for sulfide ore flotation after stirring is conducted for a certain time, and flotation concentrate and tailing products are obtained. Compared with a conventional method using a flotation inhibitor, the flotation method has the advantages and characteristics of being environmentally friendly, clean, low in cost and capable of achieving waste resource utilization.

The invention relates to a method for preparing low-iron quartz sand and high-quality feldspar from lepidolite tailings. The method is characterized by comprising the following steps: (1) grinding pegmatite type lepidolite tailings, and screening to obtain mineral particles with the particle size of less than or equal to 0.35 mm; (2) sequentially carrying out medium magnetic separation, high-intensity magnetic separation and high-intensity magnetic separation on the-0.35 mm minerals to obtain magnetic separation fine sand and magnetic separation tailings; (3) scrubbing the magnetic separation fine sand to obtain desliming fine sand with higher purity; (4) the desliming fine sand is subjected to three-section flotation, the ore pulp concentration of first-section flotation is 35%-40%, H2SO4 serves as a pH adjusting agent, the pH is adjusted to 2-5, and mixed amine serves as a collecting agent of 0.10-0.15 kg / t; the ore pulp concentration of the second-stage flotation is 25%-30%, H2SO4 is used as a pH regulator, the pH is regulated to be 1-3, and an anion and cation collecting agent is 0.10-0.15 kg / t; the ore pulp concentration of the third-section flotation is 25%-30%, H2SO4 is used as a pH regulator, the pH is regulated to 1-3, the use amount of an anion and cation collecting agent is 1.25-2.25 kg / t, and feldspar and quartz fine sand are obtained. The method has the advantages that the prepared quartz fine sand meets the index requirements of quartz for optical glass or photovoltaic glass, and meanwhile, feldspar products for high-whiteness glaze and feldspar products for float glass are obtained.

This invention relates to the field of mineral processing technology, and particularly to a depressant for molybdenum sulfide ore and a flotation separation method and application for copper-molybdenum sulfide minerals. The depressant comprises polyphenols; the polyphenols have the molecular formula C0.05. 32 H 30 O 11 The molecular weight is 590.57 g / mol, and the degree of polymerization is 2-11. The molybdenum sulfide mineral depressant is used for the flotation of copper-molybdenum sulfide minerals. The copper-molybdenum sulfide minerals contain chalcopyrite and molybdenite, with a mass ratio of 1-2:1. This invention provides a molybdenum sulfide mineral depressant and a flotation separation method and application for copper-molybdenum sulfide minerals. The aim is to solve the problems of high toxicity, high loss rate, and high intermingling of existing copper-molybdenum sulfide mineral separation flotation depressants, and to achieve effective separation of chalcopyrite and molybdenite.

The invention discloses a method for separating chalcopyrite and arsenopyrite based on surface differentiation oxidation, which comprises the following steps: step 1, grinding chalcopyrite and arsenopyrite in a grinding machine, and then sieving; step 2, pouring into a flotation tank, adding deionized water, and stirring; thirdly, a pH adjusting agent, an oxidizing agent, a collecting agent and a foaming agent are sequentially added; fourthly, air inflation is conducted for flotation, the obtained foam product is chalcopyrite concentrate, and the product in the tank is arsenopyrite tailings; the invention relates to the technical field of mineral processing. According to the method for separating the chalcopyrite and the arsenopyrite based on surface differentiation oxidation, the surface of the arsenopyrite can be selectively oxidized by using an oxidizing agent under the condition that a traditional inhibitor is not used, the inhibition effect on the arsenopyrite is remarkable, the flotation separation effect is improved, separation of the two minerals is achieved, and the method has the advantages of being green, environmentally friendly and low in cost; the process is simple, and the effect is remarkable.

The invention relates to a normal-temperature reverse flotation desilicication method for hematite, in particular to a flotation separation method for hematite and quartz, and belongs to the technical field of mineral flotation separation in the field of mineral processing engineering. A hematite normal-temperature reverse flotation desilicication method comprises the following steps: mixing an ore sample to be treated with water according to a mass ratio, and carrying out size mixing and stirring until the pH value is 10-12; adding an activating agent calcium chloride, and stirring; then adding an inhibitor soluble starch, and stirring; and finally, a collecting agent N-sodium lauroyl sarcosinate is added, flotation is conducted after stirring, and hematite concentrate is obtained. The method disclosed by the invention is simple in process flow, simple in reagent system (without adding a foaming agent), convenient to operate and capable of realizing normal-temperature flotation, and has a relatively good industrial feasibility prospect.

The present invention provides a method for separating chalcopyrite, sphalerite and pyrite based on surface oxidation, and belongs to the technical field of mineral sorting. The method grinds the mixed raw materials of chalcopyrite, sphalerite and pyrite and then floats them, adds collector, oxidant and frother in sequence, stirs, and aerates the floatation to obtain flotation foam 1 and product 1 in the tank, and product 1 in the tank is sphalerite; the flotation foam 1 is further floated, ferrous ions and oxidant are added in sequence, stirred, and aerated floatation is performed to obtain flotation foam 2 and product 2 in the tank, and product 2 in the tank is chalcopyrite, and flotation foam 2 is pyrite. The method uses an oxidant as the main flotation agent, so that the collector is adsorbed on the surface of the sulfide mineral, and the oxidant has different adsorption and desorption capabilities on the surface of different sulfide minerals, thereby producing a selective inhibitory effect on different minerals in the mixed ore, and realizing the flotation separation of three minerals. The method has significant effect, simple process, small amount of reagents, and low cost.

The invention discloses an activation-flotation recovery method for sulfide minerals in cyanide tailings, belongs to the technical field of cyanide tailings treatment, and solves the problem that sulfide minerals are deeply suppressed and difficult to be separated by flotation in the prior art cyanide tailings treatment method. The method adopts pre-mixing reaction of organic polyamine and metal ions to generate an activator for flotation of sulfide minerals, and then reacts the activator with the ore pulp prepared from the cyanide tailings to achieve surface activation of the sulfide minerals, and finally adds a collector to flotate and recover the sulfide minerals from the ore pulp. The method of the invention effectively realizes the recycling of sulfide minerals in cyanide tailings.

The invention discloses a nickel alloy smelting method, belongs to the field of nickel alloy smelting technology, comprises the following steps: S2, the nickel ore sample after milling is placed in XFD-63 flotation cell for froth flotation step, before flotation, 1-hydroxyethyl diphosphonic acid is first added in XFD-63 flotation cell, and then collector and frother are added; after flotation is completed, pentlandite concentrate and serpentine concentrate are obtained; S3, serpentine concentrate is activated pre-treated, then acid leaching is carried out, and the leachate enriched with magnesium is obtained; S4, the leachate enriched with magnesium is decontaminated, and nickel slag and magnesium sulfate solution are obtained after filtering and separation; nickel slag and pentlandite concentrate are mixed together, smelted in refining furnace, and nickel alloy is obtained after smelting through subsequent conventional processes. The method of the present invention can improve the content of nickel alloy after ore smelting, and the method is feasible, and the MgO grade in flotation concentrate is low, and the smelting of flotation concentrate will not bring operational problems.

The invention discloses a flotation recovery system for sulfide minerals in cyanide tailings, belongs to the technical field of cyanide tailings treatment, and solves the problem that sulfide minerals in cyanide tailings in the prior art are difficult to recycle. It includes a doser and a reagent pre-mixed reaction stirring barrel; the doser includes an organic polyamine doser and a metal ion doser; the organic polyamine doser and the metal ion doser are respectively connected to the reagent pre-mixed reaction stirring barrel; the metal ion doser is used to add metal ions to the reagent pre-mixed reaction stirring barrel, and the organic polyamine doser is used to add organic polyamines to the reagent pre-mixed reaction stirring barrel, and the metal ions and organic polyamines can react in the reagent pre-mixed reaction stirring barrel to generate organic polyamine-metal ion complexes. The flotation recovery system of the present invention can effectively realize the recycling of sulfide minerals in cyanide tailings.