109 results about "Xanthate" patented technology

The invention provides a low-molecular soluble chelating collector as well as a preparation method and application thereof, and belongs to the technical field of mineral processing. According to the collecting agent, low-molecular-weight ethylene glycol terephthalate serves as a precursor, and isosorbide is introduced for a copolymerization reaction; glutamic acid is introduced as a branched chain unit, and the branching degree and reaction active site density of the molecular structure are remarkably improved by utilizing the polyfunctional group characteristic of glutamic acid. A rigid ring structure and an ether bond of the isosorbide endow the medicament with good water solubility and dispersity, and invalid curling of a macromolecular chain is avoided; the introduction of glutamic acid branched chains greatly increases the number of hydroxyl groups and amino groups capable of reacting with carbon disulfide, so that each molecule carries more xanthate groups, and the adsorption stability and coverage density of the molecule on the surface of arsenopyrite are enhanced. By means of the structure, xanthate functional groups are fully exposed, multi-tooth chelation is easily conducted on the xanthate functional groups and iron and arsenic ions on the surface of arsenopyrite, a strong hydrophobic surface layer is formed, and therefore the collecting selectivity is remarkably improved.

The invention discloses a method for simulating reaction migration of metal in a xanthate-loaded porous medium. On the basis of a coupling reaction mechanism of metal and an organic complexing agent (xanthogenate) in a porous medium, a multi-surface morphology complexing model (MSM) containing soil native components and xanthogenate is constructed and is combined with a reactive migration numerical model (a coupling water flow and solute migration equation); according to the method, through model calibration and experimental verification, the dynamic migration process of each metal component and the competitive retention distribution of the metal component on different solid-phase components can be accurately simulated and quantitatively analyzed under the complex condition that metal and xanthate coexist.

The invention discloses a method for preparing viscose fiber from alkali-soaked hemicellulose, and relates to the technical field of viscose fiber production and preparation, and the method comprises the following steps: sequentially carrying out multi-stage filtration and twice nanofiltration membrane filtration on alkali liquor squeezed from slurry porridge, and separating out high-concentration hemicellulose alkali liquor; after cellulose xanthate is generated through a xanthating machine reaction, high-concentration hemicellulose alkali liquor is added into the xanthating machine to be subjected to a xanthating reaction, and hemicellulose xanthate is generated; and adding dilute alkali liquor into the xanthating machine for dissolving, and sequentially filtering, defoaming and spinning to prepare the viscose fiber. After alkali cellulose and carbon disulfide are subjected to a yellowing reaction, high-concentration hemicellulose alkali liquor is added into a yellowing machine for secondary yellowing, then two xanthate esters are dissolved with dilute alkali liquor, and subsequent filtering, defoaming and spinning procedures are performed, so that full utilization of hemicellulose is realized, and the quality and spinnability of viscose fibers are guaranteed; meanwhile, pulp unit consumption and new alkali consumption are reduced, and the production cost is saved.

The invention belongs to the technical field of mineral flotation, and particularly discloses a xanthate collecting agent and a preparation method and application thereof, and the xanthate collecting agent is obtained by taking ether alcohol, carbon disulfide and caustic alkali as raw materials to react; the xanthate collecting agent is selected from at least one of formulas I-VI. The xanthate collecting agent has the advantages of being free of peculiar smell, easy to degrade, high in yield, high in purity, efficient in mineral flotation and the like, the working environment of the xanthate collecting agent in the production and using process can be effectively improved, operation is easy and convenient, cost is low, and industrial production is easy to achieve.

The invention provides a preparation method and application of a modified PVC adsorbent for gold extraction of carbonaceous gold ore, and belongs to the technical field of organic polymer materials and resource utilization. Based on construction of a hydroxylation-xanthate esterification reaction and bifunctional adsorption sites, a series of chemical modification paths of acetate nucleophilic substitution-hydrolysis-carbon disulfide alkali treatment are established, and xanthate functional groups with high reaction activity are accurately constructed on an inert PVC framework. Sulfur atoms in xanthate groups of the modified PVC are excellent electron donors and can generate strong chemical adsorption with metal impurities or polar sites on the surface of carbon, meanwhile, Van der Waals interaction between a main chain of the modified PVC and the carbon is reserved, and unmodified PVC or single hydroxylated PVC does not have the synergism of chemical adsorption and physical adsorption, so that the modified PVC can be used for preparing the carbon-modified PVC composite material, and the carbon-modified PVC composite material can be used for preparing the carbon-modified PVC composite material. And leap-type improvement of the adsorption capacity and selectivity of organic carbonaceous in minerals is realized.

The present application relates to the field of frother, in particular to a kind of copper flotation collector frother and preparation method thereof, by weight parts, including the following raw materials: N,N-dibutyl dithiocarbamic acid propyl cyanurate 100-120 parts, O-butyl-N-isobutyl thiopropyl carbamate 12-18 parts, xanthate 12-18 parts, phosphate ester polypropylene glycol ether 15-20 parts, modified betaine 5-8 parts, alcohol ether 3-5 parts, slime inhibitor 1-3 parts, alcohol ether carboxylate 2-5 parts, sorbitan monooleate 0.8-1.2 parts. Through the synergies of each raw material, the collector capacity, selectivity in copper flotation process can be effectively improved, and the reagent stability is good.

This invention belongs to the field of mineral processing technology, specifically relating to a selective sulfidation roasting-flotation separation method for a smithsonite-calcite mixed ore. The method first involves crushing and grinding the smithsonite, calcite, and sulfiding agent, then mixing them in a certain proportion and subjecting them to sulfidation roasting, preferentially causing the smithsonite to undergo sulfidation. After cooling the roasted product in an inert atmosphere, flotation separation is performed using xanthate as a collector to obtain zinc concentrate. By controlling the atmospheric conditions during the sulfidation roasting process, the sulfidation reaction efficiency of the smithsonite can be improved, and the generation of sulfur oxide gases during roasting can be reduced. When using this method to process the smithsonite-calcite mixed ore, effective recovery of the smithsonite can be achieved, with a flotation recovery rate exceeding 88%. This invention features a simple process flow and easily controllable operating conditions, providing a new technical approach for the efficient utilization of smithsonite resources.

The invention relates to the technical field of comprehensive utilization of vanadium titano-magnetite resources, in particular to a flotation combined reagent and a flotation method for vanadium titano-magnetite associated ultralow-grade cobalt-nickel ore. The flotation combined reagent comprises a copper ammonia compound activating agent composed of copper sulfate, ammonium carbonate and sodium citrate, a compound inhibitor composed of sodium humate, tannic acid and sodium tripolyphosphate, a main collecting agent butyl xanthate, an auxiliary collecting agent alkyl hydroxamic acid and a foaming agent diethylene glycol monobutyl ether. According to the method, a technical system of bulk flotation process-novel collaborative reagent system is constructed, so that the technical problem of recycling associated ultralow-grade cobalt and nickel resources in the vanadium titano-magnetite iron separation tailings is successfully solved, the problem of low separation efficiency of ultralow-grade minerals is effectively solved, a complete and efficient technical scheme is formed, and the method is suitable for industrial production. And an innovative technical path is provided for comprehensive recovery of associated cobalt and nickel resources of the vanadium titano-magnetite.

The utility model provides an accurate metering device for xanthate production, which comprises a machine body, a power mechanism and a pump body, the top of the machine body is fixedly connected with the power mechanism, the output end of the power mechanism enters the machine body, the side face of the machine body is fixedly connected with the pump body, the bottom of the pump body is fixedly connected with an input connector, and the input connector is fixedly connected with the output end of the pump body. The top of the pump body is fixedly connected with an output connector, the front face of the machine body is in threaded connection with a threaded pin, and the outer end of the threaded pin is fixedly connected with a rotary knob. The utility model has the advantages that the half clamp is fixed on the front side of the machine body through the screw and forms an annular clasping structure with the movable clasping clamp; rubber fastening protrusions are embedded in the inner sides of the holding clamps, friction locking between the holding clamps and the threaded pins is enhanced, end heads with notches are arranged at the ends of the two clamping hoops, and the clamping hoops are fastened through bolts and padded nuts. After adjustment is completed, the holding clamp and the half clamp are closed, the nut is tightened to enable the protrusion to press the threaded pin, displacement caused by vibration or pressure fluctuation is prevented, and constant metering parameters are guaranteed.

The invention relates to the technical field of lithium ion batteries, in particular to a thermal response interface passivator composition, an electrolyte and a lithium ion battery. The thermal response interface passivator composition comprises a silane component and a chalcogenide component, the silane component is selected from any one or more of 3-mercaptopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane or gamma-methacryloyloxypropyltrimethoxysilane, and the silane component is selected from any one or more of 3-mercaptopropyltrimethoxysilane, gamma-aminopropyltriethoxysilane and gamma-methacryloyloxypropyltrimethoxysilane; the sulfur component is selected from diisopropyl xanthate disulfide and / or diphenyl disulfide. The thermal response interface passivator composition provided by the invention does not influence the electrochemical performance of a battery under the conventional operation condition of the battery, and can spontaneously polymerize on the surface of a negative electrode at the high temperature of 100-120 DEG C to form a stable and compact passivation layer, namely, an effective thermal barrier is formed before a diaphragm is broken, so that electron leakage and electrolyte decomposition are effectively blocked, and the service life of the battery is prolonged. And the thermal safety of the battery is obviously improved.

The application provides a high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions and a preparation method and application thereof. The high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions is composed of mixed alcohols, pine oil, sulfur-nitrogen esters, diesel oil, xanthate and a surfactant. The high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions is simple in preparation method, does not produce intermediate products, has low irritation, is friendly to the environment, has low dosage of the medicament compared with traditional single foaming agent, has stable foam properties, and can also assist in collecting some chalcopyrite, molybdenite and other sulfide ores. Within the range of the component allocation, the foaming agent can fully exert the synergistic effect of each component. In a high-altitude environment (altitude >= 3500m), the foaming capacity and foaming rate of the foaming agent are obviously superior to those of traditional foaming agents.

The invention relates to the technical field of medicament synthesis, and particularly discloses a microreactor device for preparing liquid isopropyl xanthate, the microreactor device comprises a workbench, the top of the workbench is fixedly connected with a mixing tank through a support, and the two sides and one end of the mixing tank are communicated with feeding pipes; the end, away from the mixing tank, of the feeding pipe communicates with a discharging port of a metering pump, the bottom of the metering pump is fixedly connected with the top of the workbench, the inner wall of the mixing tank is rotationally connected with a mixing device, and the part, located below the mixing tank, of the top of the workbench is fixedly connected with a first motor. According to the microreactor device for preparing the liquid isopropyl xanthate, the mixing device is arranged, so that the mixing efficiency of isopropanol, carbon disulfide and liquid caustic soda before reaction can be improved, and the dosing mechanism is arranged, so that the mixing efficiency of isopropanol, carbon disulfide and liquid caustic soda before reaction can be improved. Therefore, the reaction efficiency of the mixed solution of isopropanol, carbon disulfide and caustic soda liquid during reaction can be improved.

The invention relates to the field of mineral processing, and provides a method for reducing the content of sulfur in iron ore concentrate, which comprises the following steps: preparing the iron ore concentrate into ore pulp with the mass fraction of 30-50%; s2, the ore pulp in the step S1 is pretreated, and the pretreatment mode is ultrasonic treatment or hydraulic cavitation treatment; the ore pulp pretreated in the step S2 is subjected to flotation operation, sulfur-containing foam is obtained through flotation, low-sulfur concentrate is obtained, and the remaining product is desulfurized iron ore concentrate; the flotation reagent comprises a conditioning agent, a collecting agent and a foaming agent, the conditioning agent comprises lime and copper sulfate, the collecting agent is amyl xanthate, and the foaming agent is methyl isobutyl carbine.According to the method, ultrasonic or hydraulic cavitation pretreatment is combined with the flotation reagent, the floatability of pyrrhotite in the iron ore concentrate is improved, and the flotation efficiency is improved; and the sulfur content in the iron ore concentrate is obviously reduced.

A novel bis-ligand chalcopyrite collector and a preparation method and application thereof. The collector is prepared by first synthesizing an intermediate oxalyl diisothiocyanate from oxalyl chloride and thiocyanate, and then reacting the intermediate with an amine or an alcohol using a one-pot method. The collector provided by the present disclosure can form more stable dual-site adsorption on the chalcopyrite surface, thereby generating a more stable double-chelate-ring structure than the single-site adsorption of a traditional chalcopyrite collector such as xanthate and dithiophosphate. The collector not only has higher collection ability and excellent selectivity, but also can achieve efficient copper-sulfur separation even under a low-alkalinity condition. The preparation process of the collector is simple and operable, facilitating the flotation of chalcopyrite and its separation from pyrite.

A method for producing a fluoropolymer by solution polymerization or dispersion polymerization, the method including: in the presence of an initiator, a chain transfer agent, and a solvent, (i) homopolymerizing tetrafluoroethylene; or (ii) randomly copolymerizing tetrafluoroethylene and at least one of a monomer represented by the following formula (1) or a monomer represented by the following formula (2). The chain transfer agent includes at least one selected from dithioester compounds, dithiocarbamate compounds, trithiocarbonate compounds and xanthate compounds. The fluoropolymer contains 50 to 100 mol % of a polymerized unit based on the tetrafluoroethylene. The formula (1): CF2═CR1R2 wherein R1 and R2 are as defined herein, the formula (2): CH2═CR3R4 wherein R3 and R4 are as defined herein.

The invention discloses a microemulsion collecting agent for flotation of high-mud-content and high-oxidation molybdenite and preparation and application of the microemulsion collecting agent and belongs to the technical field of mineral processing, kerosene, xanthate or black powder collecting agents, a main emulsifier, a cosurfactant and water are mixed according to a certain proportion and then subjected to ultrasonic emulsification treatment, and the microemulsion collecting agent is obtained. According to the micro-emulsion collecting agent prepared through the method, after one-time roughing and two-time scavenging are conducted, the molybdenum recovery rate is remarkably increased compared with the molybdenum recovery rate when a kerosene collecting agent is singly used, the micro-emulsion collecting agent is simple in preparation method, high in emulsion stability, high in dispersity in ore pulp and free of slime interference, and the separation and recovery problem of high-argillization molybdenite is well solved.

The present application belongs to the technical field of comprehensive recycling of non-ferrous smelting slag, and particularly relates to a method for simultaneously floating and separating and recycling elemental sulfur and zinc sulfide from high-sulfur slag, which specifically comprises the following steps: (1) adding copper sulfate to high-sulfur slag slurry for microwave treatment, then adding hydrogen peroxide for heating treatment, and standby; (2) obtaining sulfur concentrate by floating the high-sulfur slag slurry obtained in step (1), and separating elemental sulfur and zinc sulfide by extracting the sulfur concentrate; the method promotes copper doping on zinc sulfide particles by microwave, improves the floating capacity of zinc sulfide, simultaneously floats and recycles elemental sulfur and zinc sulfide by adding xanthate collector during floating, and finally separates elemental sulfur and zinc sulfide by extraction; the method realizes efficient and high-grade recovery of sulfur and zinc sulfide at the same time, and provides comprehensive utilization of resources.

This invention relates to the field of mineral processing flotation reagents, specifically disclosing a high-efficiency collector for the flotation of sphalerite and its preparation method. The high-efficiency collector provided by this invention achieves synergistic enhancement of the functions of each component by compounding isopropyl xanthate, dialkyl dithiocarbamate, and mercaptoacetate, and introducing a designed and synthesized polymeric synergist. The three basic collector components together constitute a dense and stable primary hydrophobic adsorption layer. The introduced synergist, on the one hand, enhances the adsorption strength and selectivity on the surface of sphalerite through multiple functional groups; on the other hand, its grafted hydrophilic polymer chains can form steric hindrance at the mineral-water interface and regulate local hydrophilicity and hydrophobicity, thereby further optimizing the hydrophobic state of the mineral surface and inhibiting gangue inclusions. The composite reagent provided by this invention improves the recovery rate of useful minerals while ensuring concentrate quality.

The application discloses a method for selectively separating chalcopyrite and pyrite, and belongs to the field of mineral separation. First, lime is added to adjust the pH to 9-10 during grinding, then ethanolamine and isoamyl xanthate are added into the slurry as a combined collector I, wherein the ethanolamine has the function of a foaming agent, and under the condition of one roughing, three scavenging and two cleaning, a copper concentrate is obtained. The combined collector I has good synergistic effect, and has the advantages of considering the collecting property, selectivity and foaming property, reducing the amount of the inhibitor lime, and not needing to add a foaming agent, and can selectively and efficiently separate copper-sulfur minerals.

The invention discloses a ferromanganese precursor, a preparation method thereof and a positive electrode material. Belongs to the technical field of cathode materials. The ferromanganese precursor is of a core-shell structure and comprises an inner core, the component of the inner core is FexMny (OH) 2, x is larger than or equal to 0.3 and smaller than or equal to 0.7, and x + y = 1; the first coating layer coats at least part of the surface of the inner core, and the component of the first coating layer is xanthate; the second coating layer is coated on at least part of the surface of the first coating layer, the component of the second coating layer is M (OH) 2, and M is one or more of Mg, Co, Zn, Al, Ti, Zr, Nb, La, Mo and W. Through the synergistic effect of the first coating layer and the second coating layer, a sodium battery positive electrode material or a lithium iron phosphate positive electrode material prepared from the ferromanganese precursor can have relatively good comprehensive electrochemical performance.

The application belongs to the field of metal corrosion prevention, and particularly relates to a novel use of an oxygen ether group xanthate compound as a metal corrosion inhibitor. The compound described in the application can produce a synergistic effect based on the action of an oxygen ether group and a xanthate group, has good corrosion inhibition performance on carbon steel in an acid pickling solution, and has the advantages of simple preparation method, small use amount and suitability for large-scale production. Meanwhile, the oxygen ether group xanthate is simple to use, can be added into a hydrochloric acid solution to serve as a cleaning solution for pickling carbon steel, can effectively inhibit the corrosion of carbon steel in an acid solution, and has a high carbon steel release rate.

The invention relates to the field of advanced packaging semiconductor driving chips, and discloses a gold etching solution, application thereof and a method for electroplating gold-silver alloy on an etched wafer. The gold etching liquid comprises a complexing agent, an oxidizing agent, an aluminum protective agent and a solvent; wherein the complexing agent comprises a main complexing agent and an auxiliary complexing agent; the main complexing agent is selected from thiourea and / or thiourea derivatives; the auxiliary complexing agent is selected from at least one of butyl xanthate, isoamyl xanthate, thionocarbamate and diethyl phosphonate; the weight ratio of the complexing agent to the oxidizing agent to the aluminum protective agent to the solvent is 1: (0.2-1.5): (0.2-1.5): (20-30). The gold etching liquid has mild oxidability, can selectively etch a PVD gold seed layer, avoids etching a gold-silver alloy bump, does not cause serious deformation of the gold-silver alloy bump, avoids damage of etching to an aluminum circuit in a wafer, and is mild in etching condition and adjustable in gold etching rate.

The application discloses a kind of inhibitor for improving talc type copper sulphide ore flotation index, preparation method and application, it is related to sulphide copper ore flotation technical field.Tannic acid and water glass are respectively configured into solution, and are fully mixed by stirring to obtain inhibitor.Talc type sulphide copper ore is carried out grinding operation, then inhibitor is added to grinding product, so that grinding product is reacted with it, then butyl xanthate and No.2 oil are added, finally roughing is carried out to obtain copper rough concentrate and roughing tailings;Copper rough concentrate and roughing tailings are respectively carried out concentration and scavenging operation, and inhibitor is added in concentration operation, and butyl xanthate and No.2 oil are added in scavenging operation.Tannic acid and water glass are mixed after tannic acid and water glass are mixed, and are used as talc inhibitor for the separation of talc and sulphide copper ore.This method has the advantages of simple operation, low reagent consumption and strong selectivity, and can realize efficient separation of talc and sulphide copper under the condition of low dosage of inhibitor.

The application provides a polyxanthate compound and a preparation method thereof, and relates to the technical field of organic polymer synthesis. The application adds a dihydric alcohol compound, alkali and carbon disulfide into an organic solvent, and stirs and reacts; a dihalogenated compound is added into the foregoing reaction system for reaction, stirring, precipitation, drying, and thus a polyxanthate compound is obtained. The application has the characteristics of mild reaction conditions, simple operation, and easily available raw materials, and the obtained polyxanthate compound has excellent solubility, thermal stability, ultraviolet resistance and refractive performance.

The application discloses application of a flotation agent composition containing butyl xanthate and ethyldithiuron in flotation of pyrite, the butyl xanthate and the ethyldithiuron have a synergistic effect, the flotation agent composition has good flotation collecting performance on the pyrite, and the pyrite can be efficiently recovered.

The invention discloses a method for enriching trace cobalt in ultra-low vanadium titano-magnetite iron ore concentrate, and belongs to the technical field of metallurgy. The invention provides a separation and enrichment method for enriching trace cobalt elements in ultralow-grade vanadium titano-magnetite iron concentrate, which comprises the following steps: by taking ultralow-grade vanadium titano-magnetite iron concentrate with the cobalt content of 0.01-0.03% as a raw material, grinding, dehydrating and drying; then carrying out oxidizing roasting at 890-905 DEG C; water is added into the roasted product for size mixing, and the pH is adjusted to 10-11; flotation is carried out with sodium sulfide as a vulcanizing agent, amyl xanthate as a collecting agent, terpenic oil as a foaming agent and water glass as an inhibitor, and cobalt rough concentrate is obtained; and amyl xanthate and terpenic oil are supplemented, fine selection and purification are carried out, and cobalt concentrate is obtained. According to the method, the high-grade cobalt concentrate is enriched from the ultralow-grade iron concentrate, the cobalt grade is 17-20%, and the recovery rate is 80-90%.

The utility model provides a drying device for xanthate production, which relates to the technical field of xanthate production, and comprises a mounting bottom plate and a drying mechanism arranged on the outer side of the end part of the mounting bottom plate, the drying mechanism comprises a connecting plate, the connecting plate is fixedly connected to the upper surface of the mounting bottom plate, and the connecting plate is fixedly connected with the mounting bottom plate. The inner side of the top end of the connecting plate is rotationally connected with a rotating arm, and the outer side of one end of the connecting plate is fixedly connected with a first bevel gear. Materials are uniformly heated, the drying efficiency is improved, the drying time is shortened through autorotation and rotation of the drying barrel, the materials are ensured to be uniformly heated through autorotation and rotation of the drying barrel, local overheating or uneven drying is avoided, the product quality is improved, and manual intervention is reduced through automatic rotation and sealing functions of components such as a rotating handle and a motor.

The present invention provides a xanthate production system, the xanthate production system comprises an alkali adding unit, a reaction unit and a liquid storage unit, the reaction unit comprises a main reaction kettle and a continuous reaction assembly, the continuous reaction assembly comprises 1-n reaction kettles, the reaction kettles 1-n are sequentially connected, and the main reaction kettle is communicated with the reaction kettle 1; a circulating cooling device is arranged on a pipeline for communicating the main reaction kettle and the reaction kettle 1, the circulating cooling device comprises a circulating pump and a circulating cooler, the circulating pump is communicated with a discharge port of the main reaction kettle and a feed port of the circulating cooler, a discharge port of the circulating cooler is communicated with the reaction kettle 1, and a discharge port of the circulating cooler is communicated with the main reaction kettle; the main reaction kettle 1 to the reaction kettle n are provided with stirring devices; the liquid storage unit comprises a carbon disulfide storage tank, an alcohol storage tank and a solvent storage tank; the alkali adding unit, the carbon disulfide storage tank, the alcohol storage tank and the solvent storage tank are respectively communicated with the main reaction kettle; and the solvent storage tank is communicated with the reaction kettles 1-n.

The invention relates to a method for improving sulfur-oxygen mixed type copper ore beneficiation technical indexes, and belongs to the technical field of flotation. According to the method, a compound vulcanizing agent is introduced for ore grinding, meanwhile, compound ethionocarbamate is used in cooperation to serve as a copper sulfide collecting agent, and the combination of the compound vulcanizing agent and triethylene tetramine serves as a copper oxide adjusting agent; according to the copper oxide collecting agent, the combination of compound ethionine ester, oleic acid and compound alkyl sodium hydroximate is used as the copper oxide collecting agent, so that the problems of unstable copper sulfide flotation liquid level structure and single agent effect of sulfur-oxygen mixed copper ore in a traditional flotation process are solved, and the technical defects of poor flotation index and low recovery rate of copper oxide ore are emphatically overcome, the components of the compound vulcanizing agent are sodium sulfide and sodium hydrogen sulfite, the components of the compound ethionocarbamate are n-butyl ethionocarbamate, propylene glycol, isoamyl xanthate and zinc chloride, and the components of the compound alkyl sodium hydroxamate are sodium isodecyl hydroxamate and sodium citrate.

A method for preparing diisopropyl xanthate, a solid base catalyst is filled into a fixed bed reactor after being immobilized with molybdenum disulfide, a mixed solution of isopropyl alcohol, carbon disulfide and an organic solvent is injected into a micro-mixer through a feeding pump at the same time with oxygen or air, the gas-liquid mixture is fully mixed and then enters the fixed bed for heterogeneous catalytic oxidation reaction. The solid base-immobilized composite catalyst has long service life and good stability; the composite base catalyst can provide an alkaline environment to promote the formation of intermediates and avoid the generation of high-salt wastewater; a micro-mixer is added at the front end of the fixed bed reactor to realize the full mixing of gas-liquid, so that the gas-liquid heterogeneous catalytic oxidation reaction can be continuously carried out with high efficiency and high selectivity; oxygen or air which is cheap and easy to obtain is used as the oxidant, and the by-product is water, basically without three wastes.