44results about How to "Realize flotation separation" patented technology

The invention relates to a method for comprehensively using aluminium to electrolyze a waste cathode carbon block, which belongs to the technical field of environment protection and comprises the following steps: crushing and grinding the waste cathode carbon block; adjusting the concentration and the PH value of ore slurry after the grinding, then using floatation equipment to carry out floatation treatment, and separating electrolyte and carbon which are contained in the waste cathode carbon block; using an aluminium salt solution to soak for extracting the electrolyte contained in a carbon product obtained from the floatation, and further improving the grade of a high-carbon product; mixing the grinding waste water, the floatation waste water and the soaking solution, and adding CaO and CaCl2 to precipitate and recover aluminium and fluothane in the mixture. The method for comprehensively using aluminium to electrolyze a waste cathode carbon block has simple operating condition, low energy consumption, high recovery ratio of valuable substances and good application prospect.

The invention discloses a selective milling-floatation method for cassiterite multi-metal sulfide ore. In the method, cassiterite multi-metal sulfide ore is selectively milled, so that the surface hydrophilic/hydrophobic properties of cassiterite and sulfide minerals such as iron pyrite, pyrrhotite, zinc blende, jamesonite and the like in ore are changed, the surface of cassiterite does not react with a flotation collector but reacts with hydroxamic acid polyacrylamide, and selective flocculation is performed on the surfaces of cassiterite minerals; and surfaces of minerals such as iron pyrite, pyrrhotite, zinc blende, jamesonite and the like do not adsorb hydrophilic substances, and a fresh surface which is obtained by milling ore and dissociating reacts with a flotation collector which is added into an ore mill, so that floatability is realized for the surface hydrophilic property, the problems of low cassiterite floatation efficiency, high tin loss rate and severe environmental pollution caused by excessive smashing of cassiterite with the conventional floatation method in the ore dressing process of cassiterite multi-metal sulfide ore are solved, and the recovery of cassiterite with a subsequent gravity separation technology is facilitated.

The invention belongs to the technical field of mineral dressing and particularly relates to a carbonaceous shale inhibitor and a flotation separation method of molybdenum sulfide and carbonaceous shale flotation mixed concentrate. The carbonaceous shale inhibitor consists of alizarin and calcium lignosulphonate. The method comprises the following steps that the molybdenum sulfide and carbonaceous shale flotation mixed concentrate is used as raw materials, the alizarin and the calcium lignosulphonate are adopted for inhibiting carbonaceous shale, molybdenum sulfide minerals are subjected to flotation, and the flotation separation of the molybdenum sulfide minerals and the carbonaceous shale is carried out. Carbonyls and hydroxies in the alizarin form hydrophilic complexes with aluminum atoms in the carbonaceous shale, meanwhile, lipophilic groups of the calcium lignosulphonate can be adsorbed on the surface of the carbonaceous shale to generate non-polar solid surface monolayer absorption, and the lipophilic groups at the other end are hydrophilic, so the carbonaceous shale is hydrophilic, and the carbonaceous shale is inhibited. The carbonaceous shale inhibitor and the flotation separation method have the advantages that the technological process of the molybdenum sulfide and carbonaceous shale flotation separation is simplified, and a good separation effect is obtained.

The invention discloses a beneficiation method for tungsten polymetallic ore. The beneficiation method comprises the following steps of (1) grinding the tungsten polymetallic ore to form powder, (2) adding the powder to magnetized water to form ore pulp, then, adding regulators, foaming agents and first collecting agents, feeding in air to form a first foam layer, obtaining tailings after removing the first foam layer, (3) adding first inhibitors, activators and second collecting agents to the tailings, feeding in air to form a second foam layer, collecting the second foam layer to obtain white tungsten rough concentrate, and (4) concentrating the white tungsten rough concentrate till the mass of the white tungsten rough concentrate ranges from 55% to 70% of the mass of the white tungsten rough concentrate before concentration, heating the white tungsten rough concentrate to the temperature which ranges from 85 DEG C to 95 DEG C, adding second inhibitors, feeding in air to generate a third foam layer, and collecting the third foam layer to obtain white tungsten concentrate. According to the beneficiation method for the tungsten polymetallic ore, the magnetized water is used in the technological process, difference between floatability of the white tungsten ore and floatability of calcium minerals can be increased, flotation separation of the white tungsten ore and the calcium minerals such as fluorite and calcite is achieved, and the recovery rate of the white tungsten ore is increased.

The invention relates to a method for flotation separation of lead sulfide and zinc sulfide minerals and belongs to the technical field of mineral flotation separation. The method comprises the stepsthat the pH value of ore pulp is regulated to be 8.5-10.5, zinc sulfate, sodium carbonate and ferricyanide are adopted as an inhibitor of blende, ethyl thio carbamate, xanthate and aerofloat are adopted as a collecting agent of galena, 2<#> oil is adopted as a foaming agent, and a qualified lead concentrate product is separated from the minerals; and then, copper sulfate is adopted as an activating agent of the blende, the xanthate is adopted as a collecting agent, a qualified zinc concentrate product is obtained through flotation, and thus a lead mineral and a zinc mineral are effectively separated. According to the method for flotation separation of the lead sulfide and zinc sulfide minerals, the galena and the blende can be separated through a flotation method, a reagent system is simple, the procedure is reasonable in structure, and the grade and the recovery rate of the lead and zinc minerals can be effectively increased; and a combined reagent containing the ferricyanide is adopted to inhibit the zinc mineral, the advantages of good selectivity, high inhibitive capacity, less dosage and the like are achieved, the ferricyanide is stable and has little influence on the environment, the zinc content in lead concentrates is effectively decreased under the premise of saving the reagent cost and under the precise of the low-alkali environment, and the lead mineral and the zincmineral are efficiently separated.

The invention belongs to the ilmenite flotation technology, and particularly relates to a pyroxene peridotite type ilmenite depressing agent and a preparation method of the pyroxene peridotite type ilmenite depressing agent. The preparation method of the pyroxene peridotite type ilmenite depressing agent comprises the step of carrying out oscillation, stir and curing on a mixed solution formed by sodium silicate, ferric nitrate and sulfuric acid to obtain the pyroxene peridotite type ilmenite depressing agent, wherein oscillation, stir and curing are carried out for 30-40min. The obtained pyroxene peridotite type ilmenite depressing agent comprises, by weight, 5-15 parts of the sodium silicate, 5-15 parts of the ferric nitrate and 1-10 parts of the sulfuric acid. The pyroxene peridotite type ilmenite depressing agent obtained through the preparation method has a good selective depressing effect on olivine and pyroxene, and has extremely important significance in obtaining of good technical indexes of titanium flotation of pyroxene peridotite type ilmenite.

The invention relates to an alkylate waste sulfuric acid resourceful treatment device and method. The device is composed of a reaction flotation tower, a crystallizer, a heat exchanger, a mother solution circulation pump, a condensate pump and connecting pipelines between the components. Alkylate waste sulfuric acid and ammonia gas serve as inlet materials of the reaction flotation tower, and a high-temperature and high-pressure ammonium sulfate mother solution generated at the bottom of the tower enters a crystallizer; low-pressure steam generated by the reaction flotation tower is extracted from the top of the tower and enters an outer jacket of the crystallizer; polymerization oil in the alkylate waste sulfuric acid is subjected to floatation and extraction in reaction and floatation integrated equipment to obtain polymerization oil; the normal-pressure saturated ammonium sulfate mother solution crystallized in the crystallizer returns the reaction flotation tower through the mother solution circulation pump; generated crystals are extracted to serve as ammonium sulfate crystals; the normal-pressure steam generated in the crystallizer is condensed through the heat exchanger and then returns to the reaction flotation tower through the condensate pump; condensation water generated in the outer jacket of the crystallizer returns to the reaction flotation tower through the condensate pump. The method process is simplified, the operation time is shortened, and the method is environmentally friendly.

The invention discloses a charged magnetic hydrophobic material and a preparation method and application thereof in separation of micro-fine-particle minerals. The material includes magnetic particlesand a metal organic complex loaded on the surface, has strong magnetism, is positively charged on the surface, and has high electrostatic adsorption capacity for anions and high physical adsorption performance for hydrophobic micro-fine-particle minerals, and therefore, after micro-fine-particle minerals in ore pulp are subjected to surface hydrophobic and anion modification, the micro-fine-particle minerals can be adsorbed and agglomerated by utilizing the material, then the micro-fine-particle minerals are efficiently separated from gangue minerals through magnetic separation, thus solvinga difficult problem of separation and purification of ultrafine minerals. A preparation process of the charged magnetic hydrophobic material is simple and cheap and meets industrial production requirements.

The invention discloses a combined inhibitor for flotation separation of lead-zinc sulfide ore and application. The combined inhibitor comprises zinc sulfate and iminodisuccinic acid. The combined inhibitor is used as a sphalerite inhibitor for flotation separation of galena and sphalerite. The method comprises the steps of conducting ore grinding and pulp mixing on raw ore, obtaining ore pulp to be floated, sequentially adding a combined inhibitor, quick lime, a collecting agent and a foaming agent into the ore pulp for lead flotation operation, obtaining lead concentrate and lead flotation tailings, sequentially adding an activating agent, the collecting agent and the foaming agent into the lead flotation tailings for zinc flotation operation, and obtaining zinc concentrate and tailings. The combined inhibitor has a strong inhibition effect on sphalerite, flotation separation of galena and sphalerite is effectively achieved, the combined inhibitor can be naturally degraded and is environmentally friendly, and the dosage of zinc sulfate can be reduced by adding iminodisuccinic acid, so that the mineral separation cost is reduced.

The invention discloses a flotation method for zinc oxide in sulphide ore tailings. Sodium hexametaphosphate and sodium silicate which have a remarkable inhibiting effect on gangue minerals such as quartz, calcium magnesium carbonate and magnesium silicate and slime in sulfide ore tailings are used as a combined inhibitor, and meanwhile a combined collecting agent formed by mixing CA-1, N-nitroso-benzene nuclear ammonium salt and E-5 according to the proportion of 1: (0.5-0.8): (0.2-0.5) is used. The combined collecting agent is adopted, a one-roughing, two-concentrating and one-sweeping closed-loop non-desliming direct flotation process flow is adopted, the dosage ratio of the inhibitor to the regulator in the flotation process is reasonably optimized, the flotation reagent consumption can be effectively reduced, the separation index is improved, and the recovery rate and the grade of the zinc oxide concentrate in the sulphide ore tailings are remarkably improved, so that the zinc oxide concentrate of which the zinc grade is 46.7% and the zinc recovery rate is as high as 92.4% is obtained, and efficient utilization of low-grade refractory zinc oxide ore resources in the sulphide ore tailings is realized.

A kind of sulfide ore flotation inhibitor disclosed by the present invention, chemical name is: DL dithiothreitol; Its structural formula is: provide a kind of application method of non-molybdenum sulfide ore flotation inhibitor simultaneously, comprise the following steps: ( 1) The mineral is mixed with water to obtain a pulp, and the pH of the pulp is adjusted; (2) The DL-dithiothreitol aqueous solution is added to the pH-adjusted pulp; (3) Inflatable flotation to obtain foam products and tailings, this scheme The sulfide ore flotation inhibitor has an inhibitory effect on primary copper sulfide, secondary copper sulfide and galena in molybdenum concentrate, and can realize the separation of molybdenite and non-sulfide minerals, with less consumption, low price, Pollution is small.

The invention provides a method for separating chalcopyrite from talc with tragacanth and belongs to the field of separating copper sulfide minerals from hydrophobic silicate gangue. The method comprises the steps that the chalcopyrite and the talc are levigated and put into a flotation tank of a hanging trough flotator, an appropriate amount of water is added into the flotation tank, and stirring and slurry mixing are conducted; pH of slurry is adjusted with a pH adjustment agent; the tragacanth which is an inhibitor, butyl xanthate which is a collecting agent and 2 # oil which is a foaming agent are added into the flotation tank, and stirring is conducted for 1-5min; air flotation is conduced, and concentrate and a tailings product are obtained; and the products are dried, weighed and tested. The tragacanth, the efficient inhibitor, can be adsorbed on the surface of the hydrophobic silicate gangue, so that a selective inhibiting effect is achieved on the hydrophobic silicate gangue; and meanwhile, the tragacanth is non-toxic, easy to degrade and low in cost.