73 results about "Sodium oleate" patented technology

The invention discloses a combined inhibitor for high-mud-content scheelite flotation and application, belongs to the technical field of scheelite flotation, and aims to solve the technical problems that in the high-mud-content scheelite flotation process, argillaceous particle adsorption agents and gangue inhibition are not thorough, and an existing inhibitor is poor in selectivity, large in dosage and the like. The combined inhibitor comprises tannic acid / sodium humate and metal ions and is matched with the pH regulator to form a flotation reagent system, the collecting agent is prepared by compounding sodium oleate, oxidized paraffin soap and sodium dodecyl benzene sulfonate according to the mass ratio of 3: 1: 1, and the foaming agent is MIBC or terpenic oil. Through the synergistic effect of tannic acid / sodium humate-metal ions, mud dispersion and inhibition of fluorite and calcite can be synchronously achieved, and flotation of scheelite with the high mud content is enhanced; through one-stage roughing, three-stage scavenging and three-stage heating concentration, the grade and the recovery rate of WO in scheelite concentrate are improved, and the method is low in reagent dosage, environmentally friendly and suitable for industrial production.

The invention provides a collecting agent for micro-fine particle quartz ore and a preparation method and application of the collecting agent, and relates to the technical field of mineral flotation. Specifically, the preparation method of the collecting agent comprises the steps that a mixture containing the graphene and the sodium oleate is subjected to cold plasma treatment, and the graphene and the sodium oleate are grafted to obtain the collecting agent. The collecting agent can be used for mineral flotation, and high-purity quartz can be efficiently obtained; on the basis of the net capturing performance of graphene and functional groups corresponding to grafted sodium oleate, the flocculation effect on micro-fine quartz is achieved, so that the quartz is efficiently captured, the problem that the fine quartz is free in ore pulp due to large free energy in the flotation process and is difficult to capture and float is solved, the flotation separation efficiency is improved, the separation index is improved, and the flotation cost is reduced. Good application prospects are realized.

This invention relates to the field of coating technology, specifically to a protective coating for stone surfaces with good waterproof performance and its preparation method, comprising the following steps: S1. Treating microcrystalline cellulose to obtain product 1 for later use; S2. Reacting product 1 from step S1 with titanium tetrachloride to obtain nano-titanium dioxide for later use; S3. Mixing the nano-titanium dioxide from step S2 with sodium oleate and adjusting the pH to 6.5-7.5 to obtain product 2 for later use; S4. Performing surface synergistic hydrophobic modification treatment on product 2 to obtain functional filler. This invention discloses a protective coating for stone surfaces with good waterproof performance, using fluorinated acrylic resin as the base resin, incorporating functional filler, and combining it with a curing agent, mixed solvent, defoamer, and leveling agent. Through the synergistic effect between the components, this protective coating for stone surfaces possesses good waterproof performance as well as good resistance to ultraviolet aging and acid corrosion.

This invention discloses a combined collector for low-temperature iron ore flotation desilication and its application, belonging to the field of iron ore flotation technology. The combined collector of this invention is an anionic combined collector, composed of three components: component 1 is sodium oleate, component 2 is sodium linoleate, and component 3 is sodium decanoate. Components 1, 2, and 3 are each prepared into 5% (w / w) aqueous solutions. The ratio of the aqueous solutions of components 1, 2, and 3 is adjusted and mixed evenly to obtain the combined collector for low-temperature iron ore flotation desilication. This combined collector is used for reverse flotation desilication of difficult-to-process iron ores under low-temperature conditions (10℃-15℃). This combined collector overcomes the shortcomings of traditional anionic collectors, which have poor collection ability under low-temperature conditions. It reduces the pulp temperature required for reverse flotation desilication of iron ore (no heating required), effectively reducing the energy consumption of the concentrator. Furthermore, the components of the combined collector are widely available, commercially accessible, and low in cost, which is conducive to industrial-scale promotion and application.

The invention relates to the technical field of aluminiferous rock series ore processing, in particular to a method for sorting and extracting titanium concentrate from aluminiferous rock series ore. The method comprises the steps that the aluminiferous rock series ore is subjected to crushing and first grinding in sequence, and first ore pulp is obtained; the first ore pulp is subjected to desiliconization direct flotation through a first acid-base regulator and a first collecting agent, and desiliconized rough concentrate pulp is obtained; the first collecting agent comprises at least one of sodium oleate, sodium benzohydroxamic acid and sodium salicylhydroxamic acid; the desilicication rough concentrate pulp is subjected to secondary grinding, and second ore pulp is obtained; performing micro-bubble flotation on the second ore pulp by using a second pH regulator, an inhibitor, an activating agent, a second collecting agent and a foaming agent to obtain titanium concentrate; and the second collecting agent comprises (2-hydroxy-2-methyl propyl) (phenyl) phosphinic acid, diphenyl phosphinic acid and diisooctyl phosphinic acid. According to the method, the yield of the titanium concentrate is increased through the synergistic effect of stage grinding separation, precise reagent matching and micro-bubble enhanced separation.

A lipid-containing composition, by weight, includes phospholipids, and one or more of vegetable oil, medium-chain triglycerides, antioxidants, and sodium oleate. It has been verified that the various compositions provided by this invention competitively capture protein-bound toxoids in the blood, thereby achieving the purpose of clearing protein-bound toxoids from the blood, especially for patients with liver failure, and also alleviating oxidative stress in patients during dialysis treatment.

The invention discloses low-carbon ferronickel slag recycled concrete, and relates to the technical field of concrete. The low-carbon ferronickel slag recycled concrete is prepared from the following raw materials in parts by weight: 280 to 330 parts of cement, 230 to 250 parts of ferronickel slag powder, 940 to 1050 parts of recycled coarse aggregate, 590 to 650 parts of fine aggregate, 6 to 7 parts of water reducing agent, 280 to 290 parts of water and 25 to 40 parts of reinforced fiber, the preparation method of the ferronickel slag powder comprises the following steps: preparing a mixture of ferronickel slag and a grinding aid, and grinding to obtain the ferronickel slag powder, the grinding aid is prepared from 2-acrylamido-2-methylpropanesulfonate, sodium oleate and an exciting agent. The grinding aid can effectively stimulate the activity of the ferronickel slag and improve the particle size distribution of the ferronickel slag, so that the low-carbon ferronickel slag recycled concrete has high compressive strength.

The invention belongs to the technical field of biological medicines, and particularly relates to a hyaluronic acid-oleic acid conjugate as well as a preparation method and application thereof. The hyaluronic acid-oleic acid conjugate with the structure shown in the formula I belongs to a macromolecular emulsifier, and has a lower CMC value and higher stability compared with an oleic acid or sodium oleate micromolecular emulsifier, so that the hyaluronic acid-oleic acid conjugate can entrap water-insoluble active substances. The hyaluronic acid is modified by using oleic acid, so that the permeation effect of the supramolecular self-assembled nanoparticles can be improved by virtue of the percutaneous permeation promotion effect of the oleic acid, meanwhile, skin pore blockage caused by oil-soluble raw and auxiliary materials is avoided, and the skin problems of coarse pores, blackheads and the like are reduced. Besides, the hyaluronic acid-oleic acid conjugate provided by the invention can play a role in repairing the skin by the hyaluronic acid and the oleic acid, and meanwhile, the efficacy of the oil-soluble cosmetics is further improved by virtue of the permeation enhancing effect of the oleic acid. Formula I

The purpose of this invention is to provide a method for preparing highly dispersible calcium carbonate based on direct mineralization of calcium carbide slag, belonging to the field of highly dispersible calcium carbonate production technology. The method includes a first-stage activation process: calcium carbide slag, sodium tripolyphosphate, sodium oleate, and water are mixed to form a slurry, and CO2 is introduced to carbonize the slurry, achieving initial dispersion of calcium carbonate. A second-stage activation process involves adding stearate to the mineralized carbonized slurry for in-situ activation. Finally, the slurry is filtered and dried to obtain the highly dispersible calcium carbonate product. The advantages of this invention are that the synergistic effect between the two-stage activation processes inhibits the agglomeration of calcium carbonate particles, and the process and equipment are simple, highly practical, and easy to industrialize.

The invention relates to the technical field of mineral separation, in particular to a method for synchronously removing silicon and magnesium impurities by reverse flotation of collophanite, which comprises the following steps of: grinding raw ore, and synchronously removing the silicon and magnesium impurities in the collophanite by adopting a closed-loop process comprising primary roughing, primary scavenging, secondary concentration, middling regrinding-concentration and primary fine scavenging; wherein a compound of amino trimethylene phosphonic acid and sodium ardronate is used as an inhibitor of collophanite; a compound of 11-aminoundecanoic acid, dodecyl trimethyl ammonium bromide and sodium oleate is adopted as a synchronous reverse flotation collecting agent of the magnesium-silicon gangue minerals; flotation is carried out in a weakly alkaline ore pulp system, and the pH value of ore pulp is 8-10. According to the method, silicon-calcium gangue minerals are subjected to synchronous reverse flotation by selectively inhibiting apatite-multi-component collecting agent under weak base.

The application discloses a combined collector and application thereof in potassium feldspar reverse flotation desilication, and belongs to the technical field of mineral processing engineering. The combined collector is composed of sodium oleate and cetyltrimethylammonium chloride. When the total dosage of the medicament is 1*10 ‑4 mol / L to 6*10 ‑4 mol / L, pH is 10.0, and the molar ratio of cetyltrimethylammonium chloride to sodium oleate in the combined collector is 1:3 to 1:2, the high-efficiency reverse flotation separation of potassium feldspar and quartz can be realized. The combined collector has the advantages of strong collecting capacity, low production cost, small medicament dosage, good selectivity, environmental protection and safety, and can balance the separation effect and economic benefits. The combined collector of sodium oleate and cetyltrimethylammonium chloride is used for the flotation separation of potassium feldspar and quartz.

This invention discloses a glycyrrhizic acid nanomedicine, its preparation method, and its applications, belonging to the field of biomedical nanomaterials technology. The glycyrrhizic acid nanomedicine is prepared by reacting ammonium glycyrrhizate and sodium oleate at a temperature of 15-40 °C. o Glycyrrhizate nanomedicine was prepared via a microemulsion method at temperature C. After entering tumor cells, the glycyrrhizate nanomedicine was rapidly degraded within the acidic lysosomes of the tumor cells, releasing a large amount of sodium. + The presence of glycyrrhizic acid ions and glycyrrhizic acid ions causes a surge in intracellular ion concentration and osmotic pressure, as well as the accumulation of glycyrrhizic acid within tumor cells. This induces pyroptosis in tumor cells and regulates the expression of proliferation-related proteins. Pyroptosis releases a large number of damage-associated molecular patterns (DAMPs) to trigger immune activation, while the regulation of proliferation-related protein expression inhibits tumor cell proliferation. Under the combined effect of these two factors, glycyrrhizic acid nanomedicines can not only activate the systemic anti-tumor immune response but also reduce tumor cell spread, thereby effectively inhibiting tumor growth and metastasis and enhancing the efficacy of tumor immunotherapy.

The application relates to the technical field of fluorite ore dressing and purification, in particular to application of a lithium polysilicate inhibitor in removal of calcite in fluorite direct flotation. The application method comprises the following steps: mixing calcite-type fluorite ore powder and water to obtain fluorite ore slurry; adjusting the pH of the fluorite ore slurry to 7-8 by using a pH regulator to obtain pretreated slurry; sequentially adding lithium polysilicate inhibitor solution and sodium oleate solution into the pretreated slurry to obtain mixed slurry, and then performing direct flotation to obtain fluorite concentrate. The lithium polysilicate inhibitor shows excellent selective inhibition performance for the calcite-type fluorite ore, significantly enhances the floatability difference between the fluorite and the calcite, can effectively inhibit the calcite from floating, thereby reducing the content of the calcite in the concentrate, and improving the fluorite concentrate grade and the recovery rate.

The present application belongs to the technical field of mineral processing. The present application provides a flotation reagent for inhibiting calcite in fluorite-barite intergrowth ore, which comprises a collector and an inhibitor; the collector comprises at least one of sodium oleate and oxidized paraffin soap; the inhibitor comprises 5-mononitrate isosorbide and water glass in a weight ratio of 4-5:1. The present application also provides a corresponding flotation method, which comprises the steps of: preparing fluorite-barite intergrowth ore containing calcite into ore slurry, and then adding the collector and the inhibitor described in claim 1 or 2 to the obtained ore slurry for flotation. The present application can effectively inhibit calcite during the flotation of fluorite-barite intergrowth ore and improve the fluorite recovery rate, and the obtained CaF2 recovery rate is as high as 95% or more; the flotation reagent used in the present application has a small amount of use and low flotation cost.

This invention discloses the application of a combined collector in reverse flotation separation of lithium chlorite, belonging to the field of mineral flotation separation technology. The combined collector comprises dodecylamine, acetic acid, and sodium oleate. The mass ratio of dodecylamine, acetic acid, and sodium oleate in the combined collector is 1:0.1-0.2:9-11. This invention uses a combined collector composed of NaOL, DDA, and acetic acid as a collector for reverse flotation separation of lithium chlorite, which can effectively separate lithium chlorite from boehmite and kaolinite in clay-type lithium ores, thereby achieving pre-enrichment of clay-type lithium ores and reducing the amount of material processed in subsequent roasting for lithium extraction. The combined collector used in this invention has advantages such as wide availability of raw materials, low cost, simple preparation, convenient use, strong collecting ability, and good foaming performance.

The invention discloses a high-calcium fluorite ore beneficiation and enrichment method, and provides a'dense medium tailings pre-discarding-combined inhibition-efficient collector 'synergistic process aiming at the problems that fluorite and calcium-containing gangue in the high-calcium fluorite ore are difficult to separate and the recovery rate is low, and the method specifically comprises the following steps: firstly, crushing and screening raw ore, and then carrying out tailings pre-discarding through a dense medium cyclone to remove 30-35% of high-calcium tailings; after the dense medium concentrate and the fine-fraction material are combined and ground, a combined inhibitor and a collecting agent are adopted for conducting one-roughing, one-sweeping and six-concentration flotation in a weak alkaline environment, and the combined inhibitor is added in stages in the concentration stage so as to strengthen calcite inhibition. According to the method, the high-calcium ore separation bottleneck is remarkably broken through, the concentrate CaF2 grade is larger than or equal to 98.2%, the calcite residue is smaller than or equal to 0.20%, the recovery rate is larger than 85%, the using amount of the collecting agent is reduced by 40% compared with a traditional sodium oleate system, the comprehensive cost is reduced by 25%, and the method is particularly suitable for resource utilization of refractory fluorite ore with the CaCO3 content being 40-65%.

The present application relates to the field of medicine manufacturing, and relates to a preparation method of sodium oleate of plant origin, which comprises the following steps: crushing fresh plant raw materials, sufficiently stirring and kneading the fresh plant raw materials with a proper amount of solid alkali and adsorbent, adding solvent 1, filtering out pomace and adsorbent after a period of stirring and extraction reaction, and then filtering again after cooling the filtrate, adding solvent 2 to recrystallize and refine the obtained filter cake, and obtaining the final product sodium oleate after drying under reduced pressure, wherein the content of oleic acid is 45% to 80%. The present application solves the problem that the content of oleic acid in the product cannot be flexibly controlled without other changes in the prior art.

The invention belongs to the technical field of pharmaceutical preparations, and discloses a stable aprepitant injection and a preparation method thereof. The aprepitant injection comprises the following raw materials in percentage by mass: 0.5-1% of aprepitant, 8-12% of soybean oil, 8-12% of egg yolk lecithin, 0.05-2% of egg yolk phosphatidyl glycerol, 0.5-0.8% of sodium oleate, 5-8% of cane sugar, 2-4% of ethanol and the balance of water for injection, totaling 100%. The selected co-emulsifier egg yolk phosphatidyl glycerol has two hydroxyl groups at the hydrophilic end, so that the egg yolk phosphatidyl glycerol has extremely strong emulsifying performance, is well compatible with aprepitant, has a good emulsifying effect of the preparation, and can well encapsulate aprepitant, so that the dosage of egg yolk lecithin is reduced by about one third, and the stable drug-loaded fat emulsion is formed; the preparation method is suitable for industrial production, the preparation cost is low, and the accessibility of the medicine is improved.

This invention relates to a method for preparing and applying a fat emulsion injection, belonging to the field of pharmaceutical technology. The preparation steps include preparing an oil phase using egg yolk lecithin with a specific PC and PE mass ratio as an emulsifier, mixing it with an aqueous phase to obtain a colostrum, homogenizing the colostrum, and then adding sodium oleate to obtain the fat emulsion injection. The fat emulsion injection prepared by the method of this invention has the characteristics of a low SPAN value and a small number of large-diameter emulsion particles.

The invention relates to an indium hydroxide photocatalyst containing hydroxyl vacancy and a preparation method and application thereof, and the preparation method of the catalyst comprises the following steps: (1) preparing a clear sodium oleate aqueous solution by using deionized water, slowly adding a compound containing In < 3 + > into the clear sodium oleate aqueous solution to obtain a mixed solution with floccules, and then adjusting the pH value of the mixed solution to 3-6; and (2) carrying out hydrothermal reaction on the mixed solution obtained in the step (1), centrifuging, washing and drying to obtain the indium hydroxide containing the hydroxyl vacancy. The catalyst disclosed by the invention has a relatively wide light absorption range, the CO2 reduction capacity of the catalyst under a xenon lamp is greatly improved, the catalyst shows excellent selectivity of reducing CO2 into ethanol, and meanwhile, the photocatalyst has low resistivity, rapid carrier transfer capacity, high photon-generated carrier separation capacity and low carrier recombination rate; the good CO2 reduction cycle stability is realized, and the like.

The application discloses a silicon sand flotation impurity removal and purification method and belongs to the technical field of ore flotation purification. The silicon sand flotation impurity removal and purification method comprises the following steps: adding a modified ammonium salt collector into ore pulp, and carrying out flotation separation after reaction to obtain an upper layer and a lower layer; wherein the modified ammonium salt collector comprises the following raw materials: dodecylamine, hydrochloric acid and sodium oleate. The modified ammonium salt collector synthesized by chemical synthesis forms a complex micelle structure in the ore pulp, can simultaneously exert the synergistic adsorption effect of cationic surfactants and anionic surfactants, realizes selective adsorption and efficient separation on aluminosilicate gangue minerals, obtains high-purity quartz concentrate, and has good ore adaptability and industrial application prospect.

The application provides an oxidized ore collector, which comprises a medicament and water required for dissolving the medicament, wherein the medicament comprises the following raw material components in percentage by weight: 60-75% of sodium oleate, 3-5% of sodium hydroxide and 20-37% of water sludge; the water sludge is solid waste after flocculation, sedimentation and water leaching of wastewater containing p-xylene acid and p-carboxybenzoic acid generated by refined p-xylene. The oxidized ore collector provided by the application uses chemical water sludge to replace part of sodium oleate, which not only realizes resource recycling of the water sludge and reduces the environmental protection pressure of the petrochemical industry, but also reduces the production cost of the oxidized ore collector and widens the raw material source of the oxidized ore collector. The application further provides a preparation method and application of the oxidized ore collector.

The invention relates to the technical field of mineral processing, and provides a method for extracting fine iron powder from raw iron ore, which comprises the following steps: crushing and screening the raw iron ore to obtain crude raw iron ore; performing first-stage grinding, first-stage magnetic separation, second-stage grinding, second-stage magnetic separation, third-stage magnetic separation, flotation extraction and drying on the crude iron ore to obtain fine iron powder; a collecting agent is added during flotation extraction, and the collecting agent is prepared from the following components in parts by weight: 42 to 45.5 parts of sodium oleate, 18 to 19.5 parts of sodium stearate, 8 to 11.5 parts of benzohydroxamic acid, 5 to 7.5 parts of nonylcyclohexanol polyoxyethylene ether, 5 to 7 parts of castor oil polyoxyethylene ether, 5 to 7.5 parts of polypropylene glycol and 2 to 4.5 parts of sodium citrate. By means of the technical scheme, the problem that in the prior art, the iron recovery rate of fine iron powder extracted from raw iron ore is insufficient is solved.

The invention discloses a low-moisture heat-resistant lithium battery composite diaphragm in the technical field of battery diaphragms.The low-moisture heat-resistant lithium battery composite diaphragm is composed of a base film and lithium battery diaphragm slurry, and the base film is a PP base film or a PE base film; the lithium battery diaphragm slurry is prepared from the following components: sodium oleate powder, deionized water, ceramic powder, a dispersing agent, an adhesive and a wetting agent. A mode of preparing the lithium battery diaphragm slurry by using sodium oleate modified ceramic powder is provided, the heat resistance of a coating is improved, and the lithium battery diaphragm slurry is coated on the surface of a base membrane, so that the water content of the diaphragm is reduced.

The present application relates to a kind of water scale type commercial washing liquid, belong to daily chemical technical field.The raw material of commercial washing liquid provided by the present application includes fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene ether sodium sulfate, water softener, cellulose ether, sodium coconut oil, sodium chloride, urea, sodium hydroxide, sodium dodecyl benzene sulfonate, polyacrylate, isothiazolinone, polyether modified silicone oil, purified water.The present application uses fatty alcohol polyoxyethylene ether sodium sulfate, fatty alcohol polyoxyethylene ether, sodium dodecyl benzene sulfonate, sodium coconut oil Multiple surfactants such as compound to improve the performance of stain removal, and polyacrylate and cellulose ether Compound realizes the anti-redeposition when fiber material fabric treatment, on this basis, introduce the polyether modified silicone oil coated by Pluronic F-127 Effectively realize low foam residue, combined with water softener and other components, synergistically play the beneficial effects of anti-redeposition, efficient stain removal, easy rinsing.

The application discloses a kind of garnet selective inhibitor hydrolyzed polymaleic anhydride (HPMA), belongs to mineral flotation technical field.The application is under the rutile and garnet flotation separation system that collector is sodium oleate (NaOL), by adding HPMA, make it selectively adsorbed on the surface of garnet to realize the effective inhibition of garnet, and almost no influence on rutile flotation, can significantly expand the floatability difference between rutile and garnet, and then realize the efficient separation of the two, show excellent selective inhibition performance.Hydrolyzed polymaleic anhydride of the inhibitor of the application has the advantages of small dosage, strong selectivity, easy to dissolve in water, non-toxic, no pollution, etc., can effectively realize the flotation separation of rutile and garnet, and has wide application prospect.

The invention relates to the field of nonmetallic mineral processing, in particular to a froth flotation method for barium sulfate minerals. The invention discloses a formula for an agent for barite flotation. Sodium oleate (lauryl sodium sulfate) is used as a collecting agent, water glass is used as an inhibitor, terpilenol is used as a foaming agent, the content of barium sulfate in barite mineral powder in foam flotation can be increased by adjusting the content of the collecting agent and the content of the inhibitor, and impurities are enriched in tailings. The collecting agent for barite flotation is prepared from the following raw materials in percentage by weight: 0.05 to 0.1 percent of sodium oleate (lauryl sodium sulfate) and 0.1 to 0.2 percent of water glass; the flotation agent is high in selectivity and strong in ore loading capacity, and can achieve an excellent flotation effect on barite ore in Longnan Wenxian County, Gansu Province, and concentrate with higher purity and higher recovery rate are obtained. The density of the purified barite powder is remarkably improved, and the obtained barite product can meet the density requirements of grade II products and even grade I products as a weighting agent of drilling mud. The method is simple in process, excellent in collecting agent effect, low in cost, environmentally friendly and capable of being deployed in factories on a large scale.

The invention discloses a preparation method and application of Co-NX-coated Ni / gamma-Fe2O3 nanoparticles with a heterojunction structure, and the preparation method comprises the following steps: adding Ni salt and ferrite into an organic solvent to form a Ni-Fe oleic acid complex with sodium oleate, adding CoPc, uniformly mixing, heating in a water bath, and calcining at high temperature in a hydrogen atmosphere to finally obtain the nanoparticles with the heterojunction structure. The method is simple and easy to implement, the cost of raw materials is low, large-scale production can be achieved, the prepared nanoparticles have the structural advantages of being large in specific surface area, good in conductivity, resistant to high temperature and the like due to the unique heterojunction structure, meanwhile, due to introduction of Co-Nx, the electronic structure of a heterogeneous heterogeneous interface can be effectively regulated and controlled, and the electro-catalysis reaction path is optimized. Therefore, the Co-NX-coated Ni / gamma-Fe2O3 shows excellent catalytic activity and stability on alkaline oxygen evolution reaction, and the performance of the Co-NX-coated Ni / gamma-Fe2O3 is far superior to that of a commercial RuO2 catalyst.

The invention relates to the technical field of beneficiation, in particular to a beneficiation method for improving the flotation separation efficiency of micro-fine-particle ilmenite. The method comprises the following steps: sequentially adding a sodium silicate and citric acid composite dispersing agent, a sodium alginate flocculating agent and a combined collecting agent consisting of sodium oleate (NaOL) and (2-ethylhexyl) phosphoric acid mono-2-ethylhexyl ester (HEHEHP) into the desulfurization tailings, and stirring; then, a Fenton-like reagent composed of soluble ferrite and peroxysulfate is added for targeted activation; and finally, the titanium concentrate is obtained through one-time roughing, four-time concentration and one-time scavenging. According to the method, the traditional dosing mode of'first activation and second collection 'is subverted, the problems that micro-fine-particle ilmenite is prone to agglomeration and poor in separation selectivity are effectively solved through the effects of collecting agent pilot adsorption, Fenton-like reagent post-strengthening, synergistic dispersion and selective flocculation, and high-grade and high-recovery-rate efficient separation is achieved in the weak acid environment.

The application belongs to the technical field of mineral processing, and particularly relates to a tungsten ore fine sludge separation process, which comprises the following steps: S1, obtaining tungsten ore fine sludge, and obtaining desulfurized concentrate by desulfurizing the tungsten ore fine sludge; S2, obtaining first flotation concentrate by first-time flotation of the desulfurized concentrate; S3, obtaining magnetic separation concentrate by magnetic separation of the first flotation concentrate; S4, obtaining gravity separation concentrate by table concentration of the magnetic separation concentrate; and S5, obtaining second-time flotation concentrate by second-time flotation of the gravity separation concentrate. The application solves the problem of recovery of -20 mu m micro-fine particles by coupling process of desulfurization, two-stage flotation, magnetic separation and table concentration, adopting a composite reagent system of phenylpropylene hydroxamic acid, octyl hydroxamic acid and sodium oleate, and using a cyclone micro-bubble flotation column and a high-speed shearing mixer, so as to improve the grade and recovery rate of tungsten concentrate, and the content of WO3 in the separated tungsten concentrate is greater than or equal to 11 wt%, the content of sulfur mineral impurities is less than or equal to 0.4 wt%, and the recovery rate of WO3 is greater than or equal to 90%.