186 results about "Sodium oleate" patented technology

The invention relates to the technical field of beneficiation of copper cobalt oxide ores, and discloses a flotation method for high-calcium-magnesium copper cobalt oxide ores and a combined collecting agent. The positive and negative mixed flotation technology is adopted, a combined collecting agent composed of oxidized paraffin soap, sodium oleate and divalent metal cations is adopted in the reverse flotation process, the total recovery rate of copper and cobalt reaches 90% or above, and the leaching acid consumption is 20-60 kg / t.feeding ore. The combined collecting agent adopted by the method is small in dosage, good in collecting performance and small in toxicity, compared with an existing copper oxide cobalt ore flotation technology, the method can improve the copper and cobalt recovery rate by 10% or above, leaching acid consumption is remarkably reduced, the production cost is remarkably reduced, the technological process is simple, and industrial application and popularization are easy.

The invention relates to an antibacterial and anti-fouling ceramic product glaze and a preparation method, and belongs to the technical field of ceramic product glaze preparation, the ceramic product glaze comprises the following raw materials: a component A: a base material, a water glass solution, a sodium bicarbonate solution, a gadolinium nitrate solution, a europium nitrate solution, a silver nitrate solution and sodium cocoate; and the component B comprises the following components: dimethoxy methyl (3, 3, 3-trifluoropropyl) silicon, polysiloxane, dodecenyl succinic anhydride, gamma-methacryloxy propyl trimethoxy silane and white gasoline. Silver nitrate serves as a main material, europium nitrate serves as an auxiliary material, gadolinium nitrate excites the activity of silver and europium ions, and the silver nitrate, the europium nitrate and the gadolinium nitrate cooperate, so that the prepared ceramic product glaze has excellent antibacterial performance; sodium cocoate is added to form a steric hindrance effect, so that agglomeration among system particles is inhibited, and the antibacterial property of the glaze is enhanced; according to the anti-fouling glaze disclosed by the invention, the dimethoxymethyl (3, 3, 3-trifluoropropyl) silicon and the polysiloxane are added, so that the prepared glaze has a lasting anti-fouling effect.

The invention discloses a feed functional compound for improving salt-alkali stress resistance of macrobrachium rosenbergii and application of the feed functional compound, and belongs to the technical field of aquaculture. The feed functional compound for improving saline-alkaline stress resistance of macrobrachium rosenbergii provided by the invention comprises vitamin D3, betaine and sodium oleate. According to the invention, the absorption promotion effect of vitamin D3 on calcium and phosphorus ions is utilized, so that the ion metabolism disorder of macrobrachium rosenbergii under saline-alkali stress is improved; by utilizing the osmotic pressure regulation capability of betaine, osmotic pressure unbalance under saline-alkali stress is improved, and the energy consumption of osmotic regulation is reduced; the sodium oleate is used for improving energy supply, the membrane structure is adjusted to improve osmotic pressure adjusting capacity, and the three components act together to achieve the purpose of improving salt-alkali stress tolerance of macrobrachium rosenbergii.

The invention discloses a nitrogen-doped oxygen-vacancy-rich three-dimensional flower-shaped bismuth oxide electrocatalyst as well as a preparation method and application thereof, relates to the technical field of electrocatalysts, and solves the problems that a traditional bismuth oxide catalyst is insufficient in electron transfer capability and low in active site utilization rate. The preparation method comprises the following steps: dissolving bismuth nitrate, polyvinylpyrrolidone and sodium oleate in a mixed solvent of methanol and N, N-dimethylformamide, and stirring and dissolving to obtain a solution A; the preparation method comprises the following steps: dissolving 1, 3, 5-tri (4-carboxyl phenyl) benzene in a mixed solvent of methanol and N, N-dimethylformamide, and stirring and dissolving to obtain a solution B; and adding the B into the A, uniformly stirring, heating in an oil bath, reacting under magnetic stirring, cooling to room temperature, filtering, washing and drying the product to obtain white powder, calcining in a tubular furnace to obtain three-dimensional flower-shaped Bi2O3, putting in the tubular furnace, introducing argon, introducing ammonia gas, heating, and carrying out heat preservation reaction to obtain the electrocatalyst. The catalyst can be used for catalyzing nitrogen reduction synthesis ammonia reaction.

The invention discloses a method for inhibiting argillization in a coal washing process, and relates to the technical field of coal processing.The argillization inhibitor comprises filler and auxiliaries, the filler comprises sodium oleate and sodium hexametaphosphate, and the auxiliaries comprise a stabilizer, an antioxidant, a surfactant and an emulsifier; a layer of argillization inhibitor is sprayed on the surface of the coal in advance, so that the surface of the coal is covered with the argillization inhibitor, oil acid radical ions in the argillization inhibitor are adsorbed on the surface of the coal, the content of hydroxyl and hydrocarbon groups on the surface of the coal is increased, the hydrophobicity of the coal particles is improved, and therefore the coal particles are not prone to being dissolved; sodium hexametaphosphate in the argillization inhibitor can enhance the barrier effect among coal particles, so that the coal particles are in a dispersed state, the hydrophilicity of high-ash components in the coal is improved, the high-ash substances in the coal are inhibited from floating out along with clean coal, and the coal slime water treatment is facilitated. The purpose of reducing the ash content of the flotation clean coal is achieved.

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.

The invention relates to the technical field of beneficiation of high-calcium low-grade magnesite, in particular to a flotation decalcification agent for high-calcium magnesite and a using method of the flotation decalcification agent. Aiming at the problems that magnesite and calcareous minerals are easy to inhibit synchronously during flotation and a traditional reagent is large in dosage and high in cost, the invention provides a novel flotation reagent which can inhibit the floatability of the calcareous minerals. The flotation reagent comprises an inhibitor, a collecting agent and a foaming agent, the inhibitor is methylglycine diacetic acid (MGDA) or trisodium methylglycine diacetate (MGDA-3Na), the collecting agent is sodium oleate, and the foaming agent is 2 # oil; 30 mg-300 mg of an inhibitor, 30 mg-180 mg of a collecting agent and 2 mg-7 mg of a foaming agent are correspondingly added into every 1 L of magnesite pulp; the low-calcium magnesite concentrate obtained by flotation comprises the following main components in percentage by mass: 46.0-48.5% of MgO, less than or equal to 0.4% of SiO2 and less than or equal to 0.8% of CaO; the recovery rate of the magnesite concentrate is 65%-90% by weight, and the recovery rate of MgO in the magnesite concentrate is 60%-80% by weight.

The invention discloses a refreshing oil-control composition as well as a preparation method and application thereof, and belongs to the field of daily cosmetic preparations. The refreshing and oil-control composition is prepared from the following components: a skin conditioning component, Lignum seu Fructus Liu Citri sodium oleate, sodium cocoyl aminopropionate, disodium lauroyl glutamate, lauramide propyl betaine and a solvent, the skin conditioning component consists of a hyperforin perforatum flower / leaf / stem extract, a capparis spinosa fruit extract and a sanguisorba officinalis root extract. The refreshing oil-control composition provided by the invention has excellent performance of inhibiting grease secretion of human sebaceous gland cells, and has an excellent deep oil-control effect on skin; according to the present invention, the stellaria mellea L sodium oleate, the cocamidopropyl sodium propionate, the disodium lauroyl glutamate and the lauramide propyl betaine are matched to use so as to provide effects of good foaming power and stable and lasting foam; the refreshing oil-control cleaning product provided by the invention can obviously reduce the grease content of skin, improve oily skin and realize an oil-control effect.

The invention discloses a solution-treatable linear polarization low-threshold polarization laser light source and a preparation method thereof, and the preparation method comprises the following steps: mixing cesium carbonate and oleic acid, heating to 100-130 DEG C in an inert atmosphere, carrying out heat preservation for 20-40 min, after reactants are completely dissolved, heating to 140-160 DEG C, and carrying out heat preservation for 10-30 min to obtain a precursor solution A; mixing the precursor solution A, erbium acetate, yttrium acetate, bismuth acetate, silver acetate, sodium oleate, octadecene, 4-chlorobutyric acid and oleylamine according to a set proportion, standing for a set time in an inert atmosphere, stirring and heating to 90-110 DEG C, preserving heat for 0.5-1.5 h, heating to 130-150 DEG C after reactants are completely dissolved, injecting benzoyl chloride, reacting for 1-5 minutes, cooling, and stopping reaction; carrying out solid-liquid separation on the obtained mixed solution, cleaning the quantum dots, then dispersing the quantum dots in a dispersing solvent, adding PHPS into the dispersing solvent, and carrying out ultrasonic mixing; and after the PHPS is fully hydrolyzed, coating a silicon oxide sheet with the solution to prepare a film.

The invention discloses a method for preparing a piezoelectric catalytic ceramic membrane at low temperature based on nano-particle modified rod-like barium titanate powder, which comprises the following steps: preparing nano-particle modified rod-like BaTiO3 powder from Bi4Ti3O12, BaCl. 8H2O, sodium oleate, deionized water and a NaOH solution, granulating, pressing and calcining to obtain a ceramic membrane product, and further carrying out electric polarization to obtain the piezoelectric catalytic ceramic membrane. The rod-like BaTiO3 powder of the nanoparticles with high surface activity not only ensures the mechanical strength of the ceramic membrane, but also effectively reduces the firing temperature. Meanwhile, the surface of the prepared ceramic membrane is of a wormlike curved surface structure, the pore size distribution is uniform, the stable separation performance is achieved, and the catalytic degradation function is achieved after electric polarization. The method is green and energy-saving, and the product can be applied to the fields of solid / gas and liquid separation, water environment restoration and the like, and has good application value.

The invention discloses a hydroxamic acid compound, a preparation method, a flotation agent and a spodumene flotation method, and provides the flotation agent prepared on the basis of the hydroxamic acid compound and the flotation method for conducting flotation beneficiation on spodumene on the basis of the flotation agent. Based on the hydroxamic acid compound and the flotation method, the problems that a spodumene flotation collecting agent is single in agent, low in selectivity, not resistant to low temperature, high in foam stability and the like can be solved, and the hydroxamic acid compound can replace anion collecting agents such as sodium oleate and naphthenic soap.

The invention relates to a resourceful treatment method for a bauxite ore washing tail mud reservoir, which comprises the following specific steps: 1, carrying out cyclone classification on tail mud in the tail mud reservoir, and separating out coarse particles with A / S greater than or equal to Y and A / Slt; and Y fine particles. And 2, carrying out flotation treatment on the coarse particles. And potassium carbonate is added as a dispersing agent and a pH value adjusting agent, the pH value of the ore pulp is adjusted to 8.0-10.5, then sodium oleate is added as a collecting agent, and finally bauxite concentrate and flotation tailings are obtained. And 3, dehydrating the fine particles to obtain dehydrated tail mud with the water content of less than or equal to 20%. And 4, adding the flotation tailings and the dehydrated tail mud into a curing agent or a soil conditioner to form cultivable soil which is used for ecological restoration of the stony desertification area. Potassium carbonate is used for replacing sodium carbonate to reinforce flotation, so that tailings can be used as potassium-rich cultivation soil; the dam break risk can be eliminated after the tail mud is dehydrated; tailings and fine particles are compounded to form cultivation soil to treat stony desertification, silicon fertilizer is synchronously produced, the annual income is larger than or equal to 0.3 million yuan, and safe, resource and ecological cooperative treatment is achieved.

The invention discloses a combined collecting agent and application of the combined collecting agent in reverse flotation desilicication of potassium feldspar, and belongs to the technical field of mineral processing engineering. The combined collecting agent is composed of sodium oleate and hexadecyl trimethyl ammonium chloride. When the total dosage of the agent is 1 * 10 <-4 > mol / L to 6 * 10 <-4 > mol / L, the pH value is 10.0, and the molar ratio of hexadecyl trimethyl ammonium chloride to sodium oleate in the combined collecting agent is 1: 3-1: 2, efficient reverse flotation separation of the potassium feldspar and the quartz can be achieved. The combined collecting agent has the advantages of being high in collecting capacity, low in production cost, small in agent dosage, good in selectivity, environmentally friendly, safe and the like, and the separation effect and the economic benefit are both considered. According to the method, the sodium oleate and hexadecyl trimethyl ammonium chloride combined collecting agent is used for flotation separation of the potassium feldspar and the quartz.

The invention provides a preparation method of a low-sulfur diesel oil anti-wear agent, and belongs to the technical field of carbon-containing fuel processing, and the preparation method comprises the following steps: adding sodium oleate, tetrabutylammonium bromide and xylene into a three-necked flask, uniformly stirring and mixing, heating, dropwise adding 3-chloro-1, 2-propylene glycol, continuously heating until reflux, centrifuging, and carrying out rotary evaporation to obtain glyceryl monooleate; the preparation method comprises the following steps: dispersing NCC in xylene, adding lauric acid and p-toluenesulfonic acid, and carrying out heating, reflux reaction, cooling, centrifugation, washing and drying under the protection of an inert atmosphere to obtain modified NCC; the preparation method comprises the following steps: heating and melting glyceryl monooleate, adding silane modified silicon dioxide, stirring, carrying out ultrasonic treatment, cooling to obtain a modified nano-composite, adding the modified NCC and a stabilizer, stirring, and carrying out ultrasonic uniform mixing to obtain the low-sulfur diesel oil anti-wear agent. The diesel oil anti-wear agent provided by the invention can improve the wear resistance of diesel oil under the condition that the addition amount is relatively low, and improve the low-temperature fluidity and demulsifying performance.

The invention discloses a pH-responsive alkaline clean fracturing fluid as well as a preparation method and application thereof, and belongs to the technical field of oil and gas field fracturing. The cleaning agent comprises the following components in parts by mass: 1-5 parts of an anionic surfactant, 1-5 parts of a zwitterionic surfactant, 0.2 part of a pH regulator and 100 parts of deionized water, wherein the anionic surfactant is sodium oleate or sodium stearate; the zwitterionic surfactant is erucyl amide propyl betaine or oleamide propyl betaine; and the surfactant is a surfactant. The pH regulator is any one of sodium hydroxide, potassium hydroxide and sodium bicarbonate. The fracturing fluid is a clean fracturing fluid system based on pH response type micelle dynamic reconstruction, and through the synergistic effect of a specific surfactant and a pH response mechanism, accurate and rapid regulation and control of viscosity, zero residue damage and construction process simplification are achieved; the technical problems that an existing surfactant fracturing fluid is complex in compounding process, cannot be recycled after gel breaking, is slow in gel breaking response and narrow in application range are solved.

The utility model relates to the technical field of sodium oleate production and manufacturing, and particularly discloses a stirring device for stirring sodium oleate, which comprises a dissolving tank for placing sodium oleate, a driving motor is arranged at the upper end of the dissolving tank, and a temperature sensing device is arranged in the dissolving tank; a stirring shaft assembly is arranged below the driving motor and is electrically connected with the temperature sensing device; the stirring shaft assembly comprises a main shaft; a frame and a plurality of main stirring blades are arranged on the main shaft, and the main stirring blades are arranged in the frame; a plurality of secondary stirring blades are respectively arranged on side rods on two sides of the frame; a plurality of fins are further arranged on the outer sides of the two side rods of the frame; the main stirring blade comprises a first central shaft and a plurality of blades arranged around the circumference of the first central shaft, and each blade and a radial line passing through the central point of the first central shaft are inclined at an angle of R degrees; the secondary stirring blades and the side rods on the same side are inclined at an angle of R degrees. The stirring contact area is effectively increased, the condensation phenomenon is reduced, and the stirring uniformity and safety are improved.

The invention belongs to the technical field of mineral separation processes, and particularly relates to a novel gravity-flotation combined process tailing discarding process. According to the method, the coastal placer tailings are scrubbed, so that slime and impurities wrapping the outer layers of mineral particles can be removed, the fresh surfaces of the mineral particles are exposed, and the effect of a flotation reagent on the mineral particles is improved; sodium carbonate and water glass are used as regulators; oleic acid and sodium oleate are used as collecting agents; terpenic oil is used as a foaming agent for size mixing, and full release of the effect of a flotation reagent is facilitated; and in addition, the flotation operation mode of two-time roughing, three-time scavenging and three-time concentration and reselection are combined, so that the recovery rate of useful minerals in the coastal placer tailings is greatly increased, and the waste of resources is reduced.

The invention discloses a tailing-free treatment method for flotation tailings of a metal mine, which comprises the following steps: adding oxalic acid into ore pulp of the flotation tailings of the metal mine to adjust the pH value of the ore pulp, and then adding butyl xanthate and terpenic oil for sulfur roughing; performing blank concentration on a foam product obtained by sulfur roughing for three times to obtain sulfur concentrate; the method comprises the following steps: performing low-intensity magnetic separation on sulfur separation tailings obtained by sulfur roughing, performing sedimentation desliming on the tailings obtained by low-intensity magnetic separation to obtain micron-sized fine silt and a crude product, performing roughing on the crude product for five times, adding an adjusting agent of oxalic acid and 2-hydroxypropane-1, 2, 3-tricarboxylic acid combination, lauryl amine and sodium oleate in each time of roughing, blank concentration is conducted on a foam product 1 obtained through first-time roughing to obtain feldspar concentrate 1, foam products and micron-sized fine silt obtained through subsequent roughing are filtered and dried to obtain feldspar concentrate 2, and after fifth-time roughing is finished, ore pulp is filtered and dried to obtain quartz concentrate. The problem of land and environment damage caused by tailing stockpiling can be solved, and tailing resource utilization is achieved.

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.

The invention discloses a low-temperature combined collector for flotation and desilicication of iron ore and application of the low-temperature combined collector, and belongs to the technical field of iron ore flotation. The combined collecting agent is an anion combined collecting agent and is prepared from three components, the component 1 is sodium oleate, the component 2 is sodium linoleate, the component 3 is sodium caprate, the component 1, the component 2 and the component 3 are prepared into aqueous solutions with the mass concentration being 5% respectively, the proportion of the aqueous solutions of the component 1, the component 2 and the component 3 is adjusted, the aqueous solutions of the component 1, the component 2 and the component 3 are mixed to be uniform, and the low-temperature type iron ore flotation desilicication combined collecting agent is obtained. The combined collecting agent is used for reverse flotation desilicication of refractory iron ore at the low temperature of 10-15 DEG C. According to the combined collecting agent, the defect that a traditional anion collecting agent is poor in collecting capacity under the low-temperature condition is overcome, the ore pulp temperature needed by iron ore reverse flotation desilicication is reduced (heating is not needed), the energy consumption of a dressing plant is effectively reduced, and the combined collecting agent is wide in component source, convenient to commercially obtain, low in cost and beneficial to industrial application and popularization.

The invention relates to the technical field of molecular sieves, and provides a modified ZSM-35 molecular sieve as well as a modification method and application thereof. In the modified ZSM-35 molecular sieve, the content of non-framework aluminum accounts for 11% or less of the total amount of aluminum, and a pyridine infrared characterization result shows that the amount of B acid in an eight-membered ring is 0.23-0.27 mmol / g. According to the present invention, the ZSM-35 molecular sieve is treated by using the alkali and the sodium oleate, such that the obtained modified ZSM-35 molecular sieve has characteristics of good crystallinity, high B acid content in 8-MR pore channels, and no significant increase of the non-framework aluminum content so as to effectively improve the catalytic activity of the ZSM-35 molecular sieve in the dimethyl ether carbonylation reaction.

Rapidly disintegrating tablet with a disintegration time of no more than 15 minutes for oral administration of a dry extract from the leaves of Ginkgo biloba and with a total tablet weight between 150 mg and 300 mg per 100 mg of the contained Ginkgo extract, manufactured comprehensively (a) a first process step in which the ginkgo extract is mixed with 6.94 mg to 27.78 mg binder per 100 mg of the ginkgo extract contained, with 5.56 mg to 22.22 mg disintegration accelerator per 100 mg of the ginkgo extract contained, with 1.11 mg to 4.44 mg flow regulator per 100 mg of the ginkgo extract contained, and with 0.28 mg to 1.11 mg mold release agent per 100 mg of the ginkgo extract contained, and is subsequently compacted and crushed to obtain a concentrated granulate, and (b) a second process step in which the concentrated granules obtained in step (a) are mixed with a further 22.78 mg to 91.11 mg of binder per 100 mg of the ginkgo extract contained, with a further 11.11 mg to 44.44 mg of disintegration accelerator per 100 mg of the ginkgo extract contained, with a further 0.56 mg to 2.22 mg of flow regulator per 100 mg of the ginkgo extract contained and with a further 1.67 mg to 6.67 mg of mold release agent per 100 mg of the ginkgo extract contained and pressed into tablets, wherein the total amount of excipients in step (a) is 13.89 mg to 55.56 mg per 100 mg of the ginkgo extract contained and in step (b) is 36.11 mg to 144.44 mg per 100 mg of the ginkgo extract contained and wherein the binder in step (a) and in step (b) is microcrystalline cellulose, the disintegration accelerator in step (a) and in step (b) is independently selected from croscarmellose sodium, carboxymethyl starch sodium, crospovidone or sodium starch glycolate, the flow regulator in step (a) and in step (b) is independently selected from highly dispersed silicon dioxide or precipitated silicon dioxide, and the mold release agent in step (a) and in step (b) is independently selected from magnesium stearate, stearic acid, behenic acid, sodium stearyl fumarate, glycerol dibehenate, calcium behenate or fumaric acid.

The invention belongs to the field of catalysts, and particularly relates to a nitrogen-sulfur co-doped Fe-based diatomic catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: by taking hexamethylenetetramine and 2, 4-dihydroxybenzoic acid as hard templates and sodium oleate, P123 and polyethylene glycol with the molecular weight of 4000 as soft templates, uniformly mixing, carrying out hydrothermal reaction to prepare HBP, loading Fe ions, and carrying out nitrogen and sulfur doping with thiourea through high-temperature calcination to obtain the nitrogen and sulfur doped hollow carbon bowl loaded Fe-based diatomic catalyst. The catalyst shows excellent ORR catalytic activity under an alkaline condition and shows excellent application performance in a zinc-air battery.

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 application provides a fluorapatite phosphate ore reverse flotation magnesium removal collector and application thereof, which comprises basic substances and water, and the basic substances are mixed according to the mass ratio, wherein the ratio of fatty acid soap, surfactant and additive is 11:3:2; the fatty acid soap is one or a mixture of two of sodium oleate, oxidized paraffin soap; the surfactant is one or any ratio of sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, sodium citrate, sodium acetate and sodium benzoate; and the additive is sodium naphthenate. The fluorapatite phosphate ore reverse flotation magnesium removal collector provided by the application can effectively separate apatite and dolomite, significantly improve the collecting capacity and selectivity by adding surfactants and additives, and the surfactant composition weakens the influence of Fe 3+ on the flotation system.

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 a multi-cavity carbon nanorod packaged bismuth oxide catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalyst preparation. The preparation method comprises the following steps: constructing a composite micelle containing metal ions by using a dual-surfactant P123 and sodium oleate, co-assembling the composite micelle with a melamine oligomer generated based on a Schiff base reaction, and carbonizing and reducing to obtain the nitrogen-doped carbon nanorod loaded bismuth oxide nanoparticle catalyst with a chamber structure. The prepared catalyst has excellent catalytic performance and stability when applied to preparation of formic acid through reduction of carbon dioxide under electro-catalysis, the highest Faraday efficiency of formic acid under the potential of-1.3 V vs.RHE is 96%, and the partial current density of formic acid can reach 34.8 mA cm <-2 >. In the catalysis process of 42 h, the Faraday efficiency of formic acid can be kept at 86% or above, and the method has good application prospects.

The invention relates to the technical field of mineral separation technologies, in particular to a combined inhibitor and method for reverse flotation magnesium removal of sedimentary phosphorite, and the combined inhibitor is prepared by compounding the following components in parts by mass: 20-30 parts of aluminum sulfate octadecahydrate, 50-70 parts of tartaric acid and 10-20 parts of citric acid. The method is completed through a technical route of coupling regulation and inhibition of apatite by a combined inhibitor and reinforced separation of calcium and magnesium carbonate minerals by a mixed collecting agent. The method comprises the following steps: removing magnesium through a'one-roughing, one-refining and one-sweeping 'process under the condition that the pH value is 6-7 by combining with a sodium oleate / dodecylbenzene sulfonic acid / 2-ethylhexyl phosphate 2-ethylhexyl ester mixed collecting agent, so as to obtain phosphate concentrate with MgO less than 0.8%, P2O5 more than 29% and recovery rate more than 90%.