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1830 results about "Zinc sulfide" patented technology

Zinc sulfide (or zinc sulphide) is an inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly occurs as the mineral sphalerite. Although this mineral is usually black because of various impurities, the pure material is white, and it is widely used as a pigment. In its dense synthetic form, zinc sulfide can be transparent, and it is used as a window for visible optics and infrared optics.

Laser engraving methods and compositions, and articles having laser engraving thereon

The invention provides a composition having laser engraving properties, comprising a host material and an effective amount of a laser enhancing additive. The laser enhancing additive comprises a first quantity of least one of copper potassium iodide (CuKI3) or Copper Iodide (CuI), and a second quantity at least one substance selected from the group consisting of zinc sulfide (ZnS), barium sulfide (BaS), alkyl sulfonate, and thioester. The composition can be engraved with grayscale images by an Nd:Yag laser and can be added to laminates or coatings. The composition can be used during the manufacture of many articles of manufacture, including identification documents.
Owner:L 1 SECURE CREDENTIALING

Scaling inhibitors and method for using the same in high density brines

A formulation containing a copolymer derived from a cationic monomer effectively inhibits and controls the formation of inorganic scales. The formulation has particular application in the removal of zinc sulfide and iron sulfide scales formed when zinc bromide brines are used as completion fluids. The copolymer exhibit high solubility in high-density brines, such as zinc bromide brines. The polymers may be introduced into an oil or gas well as a portion of a carrier fluid or with brine. The preferred copolymer for use in the invention contains an acrylamide unit and a diallyldimethylammonium salt and, optionally, an acrylic acid or a salt thereof. The weight average molecular weight of such inhibitor copolymers is generally between from about 500,000 to about 5,000,000.
Owner:BAKER HUGHES INC

Multiple band gapped cadmium telluride photovoltaic devices and process for making the same

A heterojunction photovoltaic device for the production of electrical energy in response to the incident light includes an optically transparent substrate, a front contact formed of an transparent conductive oxide for collecting light generated charge carriers, an n-type window layer formed of cadmium sulfide or zinc sulfide, a p-type absorber structure disposed on the window layer, thereby forming a rectification junction therebetween, and a back contact comprising at least one metal layer. The p-type absorber structure has a plurality of p-type absorber layers in contiguous contact. Each absorber layer contains cadmium as a principal constituent and has a different composition and a different band gap energy. The first absorber layer is in contiguous contact with the n-type window layer. The band gap energy progressively decreases from the first absorber layer to the last absorber layer in the p-type absorber structure.
Owner:AUCMOS TECH USA INC

Heat curable thermosetting luminescent resins

Luminescent polymers are prepared from thermosetting unsaturated polyesters, suspending fillers and phosphorescent pigments and utilized to make gel coated articles and molded, cast and fiberglass reinforced plastic (FRP) articles. The luminescent polymers show bright and long-lasting photoluminescent afterglow, strong thermostimulation of afterglow by heat and electroluminescent properties. The preferred thermosetting unsaturated polyester resins are prepared by condensing mixtures of ethylenically unsaturated and aromatic dicarboxylic acids and anhydrides with dihydric alcohols and a polymerizable vinylidene monomer. Preferred suspending fillers and thixotropic modifiers include silica, microspheres, glass fibers and other short fibers, nepheline syenite, feldspar, mica, pumice, magnesium sulfate, calcium carbonate, bentonite and the various clays and thixotropic modifiers and mixtures thereof. Preferred phosphorescent pigments include alkaline earth aluminate phosphors, zinc sulfide phosphors and mixtures of these phosphors.
Owner:BURNELL JONES PETER

High-efficiency quantum dot light emitting diode with self-assembly polymer hole transmission layer structure

The invention discloses and proposes a high-efficiency quantum dot light emitting diode with a self-assembly polymer hole transmission layer structure. Except a positive electrode and a negative electrode, the high-efficiency quantum dot light emitting diode comprises a three-layer structure: a hole transmission layer, a quantum dot light emitting layer and an electron transmission layer, wherein one end of the quantum dot light emitting layer is connected with the hole transmission layer, the other end of the quantum dot light emitting layer is connected with the electron transmission layer, the electron transmission layer is organic nanoparticles after doped, the hole transmission layer is formed by doping a monomer, a polymer, small-molecule, inorganic oxidized metal nanoparticles or a two-dimensional nanometer material into poly(3,4- ethylenedioxythiophene monomer), a quantum dot is quantum dots of zinc sulfide, zinc selenide, cadmium sulfide, cadmium selenide, cadmium telluride, mercury sulfide, mercury selenide, mercury telluride or core-shell nanometer structured cadmium selenide-zinc sulfide, cadmium sulfide-zinc sulfide, cadmium sulfide-zinc selenide and graphene thereof and the like, and the negative electrode is glass or polyethylene terephthalate (PET) with a layer of indium tin oxide (ITO) or fluorine-doped tin oxide (FTO) or graphene.
Owner:SOUTHEAST UNIV

Copper-indium-galliun-selenium film solar cell and its preparation method

A film solar battery with copper, indium, gallium selenium and its parparing method relates to semiconductor film preparation and structure design of semiconductor film device. It has the characteristics as using n-ZnS as a window layer, CuIn GaSe P-semiconductor film as an absorption layer and to form ZnS / Cu (In,Ga) Sezp-n junction with ZnS, of which metal back electrode is Mo-Cu alloy. In present invention. ZnS has been used as a window layer of film solar battery to replace ZnO material so as to increase absorption spectral region of sun light at absorption layer and to avoid the application of hazardous material of Cd, furthermore Mo-Cu alloy has been used as a back electrode to replace Mo for making joint between battery and backing more solid to raise the yield of battery production.
Owner:TSINGHUA UNIV

Nanocrystalline quantum dot with core-shell structure and preparation method of nanocrystalline quantum dot

The invention discloses a nanocrystalline quantum dot with a core-shell structure and a preparation method of the nanocrystalline quantum dot. The method comprises the following steps: preparing a nanocrystalline core; and coating zinc sulfide in situ on the surface of the nanocrystalline core to acquire the nanocrystalline quantum dot with a core-shell structure, wherein the method further comprises a step of implementing in-situ purification on the nanocrystalline quantum dot before the step of coating zinc sulfide on the surface of the nanocrystalline core and / or further comprises a step of implementing in-situ purification on the nanocrystalline quantum dot after the step of coating zinc sulfide on the surface of the nanocrystalline core. Due to the method disclosed by the invention, the fluorescence efficiency of the nanocrystalline quantum dot with the core-shell structure and the stability of the air and the temperature are increased, and the adjustable luminescence wavelength window of the acquired nanocrystalline quantum dot is 500-700nm large. The method is easy to operate, low in cost and good in repeatability; and the acquired nanocrystalline quantum dot contains no toxic heavy metals, thereby satisfying the requirements on the applications in biological marking and biological monitoring and providing excellent luminescence materials for the aspects of illumination, solar energy and displays.
Owner:NANJING TECH CORP LTD

Laser engraving methods and compositions, and articles having laser engraving thereon

The invention provides a composition having laser engraving properties, comprising a host material and an effective amount of a laser enhancing additive. The laser enhancing additive comprises a first quantity of least one of copper potassium iodide (CuKI3) or Copper Iodide (CuI), and a second quantity at least one substance selected from the group consisting of zinc sulfide (ZnS), barium sulfide (BaS), alkyl sulfonate, and thioester. The composition can be engraved with grayscale images by an Nd:Yag laser and can be added to laminates or coatings. The composition can be used during the manufacture of many articles of manufacture, including identification documents.
Owner:L 1 SECURE CREDENTIALING

Clear glass composition

Glass is provided so as to have high visible transmission and / or fairly clear or neutral color. In certain example embodiments, the clear glass includes a low amount of iron coupled with zinc oxide and / or erbium oxide in amounts designed to provide a neutral color. While the erbium oxide is used to provide for neutral color, the zinc oxide binds sulfur into whitish-colored zinc sulfide thereby reducing the amount of sulfur that binds / bonds with iron in the glass to form sulfides of iron which is / are brownish in color. Thus, the use of the zinc oxide helps make the glass more neutral in color. In certain example embodiments, the use of the erbium oxide brings the a* color value of the resulting glass closer to zero, whereas the use of the zinc oxide brings the b* value of the resulting glass closer to zero.
Owner:GUARDIAN GLASS LLC

Technology of enhanced-dispersion partial selective and bulk flotation of lead and zinc sulfide ores under low and high alkalinity

The invention discloses a technology of enhanced-dispersion partial selective and bulk flotation of lead and zinc sulfide ores under low and high alkalinity. During grading of the lead and zinc sulfide ores, sodium hexametahposphate is taken as a dispersion agent and directly added into a ball mill, the ores are ground till the ores with the size of 0.074mm account for 67%-70%, lime is taken as an adjusting agent, zinc sulfate and sodium sulfite are taken as inhibitors, dithiophosphate BA and diethyldithiocarbamate are taken as collectors, and selective flotation of part of lead minerals with good floatability can be performed under low alkalinity; then xanthate and the diethyldithiocarbamate are taken as collectors, and the flotation of the lead minerals is further performed under high alkalinity; copper sulfate is added in lead flotation tailings for activation, butyl xanthate is further taken as the collector for flotation of zinc blende and part of pyrite, and zinc-sulfur separation flotation is further performed on zinc-sulfur mixed concentrate; and sulfuric acid is added in zinc flotation tailings for activation, and the xanthate is taken as the collector for flotation of the remaining pyrite. By adopting the technology, the lead-silver recovery rate can be improved, the using amount of lime and sulfuric acid can be reduced, the circulating amount of middlings can be reduced, the ore dressing cost can be reduced and the grade of the concentrate can be improved.
Owner:KUNMING UNIV OF SCI & TECH

Bath smelting method and apparatus of zinc sulfide concentrate and lead-zinc containing materials

InactiveCN103388081AMeet the requirements of smeltingReduce energy consumptionMelting tankHigh concentration
The invention discloses a bath smelting method and an apparatus of zinc sulfide concentrate and lead-zinc containing materials. The smelting method comprises the following steps: mixing lead-zinc-containing mixed materials according to a certain proportion and pelletizing; and then, adding the pelletized materials into an oxidation furnace having a lead-containing high-zinc-slag bath with proper ingredients and smelting points, and blowing oxygen-enriched air into the bath for generating an oxidation reaction with the pelletizing materials to generate high-concentration SO2 flue gas and lead-containing high-zinc slag, wherein the SO2 flue gas is used for preparing acid, the lead-containing high-zinc slag is continuously discharged from the oxidation furnace into a reduction furnace bath, zinc in the lead-containing high-zinc slag is reduced into zinc vapor to be collected, and the lead is reduced into metal lead and such precious metals as gold and silver in the raw materials are captured and gathered at the bottom part of the bath to be discharged. The bath smelting method disclosed by the invention has the advantages of short flow, strong raw material adaptability, low energy consumption, environment friendliness, efficient source utilization and the like and is expected to solve the current treatment difficulty of high-iron zinc sulfide concentrate, zinc oxide ores, iron and steel plant zinc dust and gold-containing iron ores and the long-term pollution problems of zinc slag of hydrometallurgy.
Owner:CENT SOUTH UNIV

Solar co-generator

A solar co-generator for producing both heat energy and electricity is disclosed. A solar concentrator directs sunlight into a container lined with solar cells and filled with a thermal transfer fluid. The fluid is transparent with respect to certain wavelengths of light that may be converted to electricity by the solar cell, but is opaque with respect to longer wavelengths, particular the infrared band. The infrared portion of the sunlight heats the thermal transfer fluid, which then transfer that heat through a storage facility using a heat exchange mechanism. The thermal transfer fluid increases the efficiency of photovoltaic generation by preventing heating of the solar cells due to infrared radiation. The thermal transfer fluid may be a mixture containing barium sulfate and a suspension of zinc sulfide phosphors. A fluorescing anti-reflective coating may be applied to the solar cells to further increase efficiency.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ARKANSAS

Stepped flotation of tin, lead and zinc sulfide mine

A step floatation technology for the tin-lead-zinc sulfide ore includes such steps as high-alkali high-speed floatation and separation of lead sulfide ore, high-alkali high-Ca floatation and separation of zinc sulfide ore, and floatation of zinc tailings. Its advantages are high grade and recovering rate of lead concentrate, no loss of Ag ore, and simple apparatus.
Owner:黎东明

Quantum dot phosphors for solid-state lighting devices

InactiveUS20100006775A1Inexpensive and low toxicity materialLow costDischarge tube luminescnet screensLamp detailsPhosphorUltraviolet
A phosphor for use, for example, with an ultraviolet LED to provide a broad-spectrum white light approximating diffuse sunlight, that includes quantum dots spaced from an activator material by a capping layer surrounding the quantum dots. This approach of spacing an activator material from the quantum dots provides improved spectral output for quantum dots of materials such as zinc sulfide.
Owner:WISYS TECH FOUND

Thin film inorganic light emitting diode

A method for the manufacturing of a Thin Film Inorganic Light Emitting Diode is disclosed. The device contains in one single layer or in a double layer a dispersion of zinc sulfide doped with a luminescent centre, and a water-compatible p-type semiconductive polymer, preferably a polythiophene / polymeric polyanion complex.
Owner:AGFA GEVAERT AG

Sulphide ore floation collector and use method of diacyl bis-thiourea and preparation method thereof

The invention discloses the application processes and the preparation methods of a sulphide ore flotation collector as well as a diacyl bis-thiourea. The invention relates to a novel collector used for high efficiently recycling valuable sulfide minerals from metal sulphide ores; the compositions of the sulphide ore flotation collector include diacyl bis-thiourea surface active agents; the diacyl bis-thiourea compound is shown in the constitutional formula (1) or (2). The collector has strong collecting ability to copper sulphide minerals such as chalcopyrite, etc., lead sulfide minerals or zinc sulfide minerals activated by copper ions, nickel sulfide minerals as well as noble metal minerals such as gold, silver, etc., and has good selectivity to gangue sulphide minerals such as iron pyrites, pyrrhotite, etc., thereby realizing the high efficient flotation separation of the copper sulphide minerals and ferric sulfide minerals when the pH value of ore magma is below 11, reducing the used amount of lime, and improving the comprehensive recovery of copper sulphide ores.
Owner:CENT SOUTH UNIV

Sodium ion battery zinc sulfide based negative electrode material and preparation method thereof

The invention discloses a preparation method of a sodium ion battery zinc sulfide based negative electrode material. A zinc based metal organic framework acts as a precursor of the negative electrode material, and is prepared by adopting a solvent heat vulcanization method, wherein zinc sulfide nano particles are dispersed into a porous carbon framework via in-situ assembly, and the mass percentage content of zinc sulfide is 70-90%. The material as the negative electrode material of the sodium ion battery shows the characteristics of high specific capacity and good cycling stability, and the preparation method is simple and easy to operate, is environmentally friendly, and is low in cost.
Owner:CENT SOUTH UNIV

Efficient and environmentally-friendly antibacterial and mildewproof inorganic composite nano-powder slurry and its preparation method

Relateing to the field of antibacterial materials, the invention specifically provides an efficient and environmentally-friendly antibacterial and mildewproof inorganic composite nano-powder slurry obtained through compounding nano-magnesium oxide and other nano-inorganic materials and its preparation method. The nano-powder slurry takes nano-magnesium oxide as the main body, which is then compounded with one or more inorganic materials of nano-zinc oxide, nano-titanium oxide, nano-copper oxide, nano-cuprous oxide, nano-silver oxide, nano-zinc sulfide, nano-zirconium oxide, nano-yttrium oxide, nano-alumina, and nano-calcium oxide so as to form the nano-powder slurry, which comprises, by weight percent: 0.1-40% of nano-magnesium oxide, 0.01-40% of other inorganic materials, 0.5-12% of a polymeric dispersant, and the balance a solvent. In the method, a nano-inorganic material enters a solution composed of the polymeric dispersant and the solvent by means of high speed dispersion according to a predetermined proportion, and after ball milling, the composite nano-powder slurry can be obtained. The composite nano-powder slurry can be applied in antibacterial coatings, deodorants, textiles, paper products, plastics, rubbers, water treatment agents, ship protective agents, cosmetics and other aspects.
Owner:广东腐蚀科学与技术创新研究院

Fluorescigenic pavement reflecting adhesive tape and manufacturing method thereof

The invention relates to a fluorescigenic pavement reflecting adhesive tape and a manufacturing method thereof. The fluorescigenic pavement reflecting adhesive tape is manufactured by adding a reflecting coating or adding various flourescent materials (such as rare earth ion-activated zinc sulfide fluorescence powder) in an amount which is 0.1 to 5 weight percent based on the total amount of the reflecting coating and a substrate into the reflecting coating or the reflecting coating and substrate of any of various conventional pavement reflecting adhesive tapes. The pavement reflecting adhesive tap is comprised of the fluorescigenic reflecting coating, the substrate and a pressure sensitive adhesive, wherein the fluorescigenic reflecting coating is coated on the front side (upper side) ofthe substrate; and the pressure sensitive adhesive is applied on the back side (down side) of the substrate. The novel pavement reflecting adhesive tape retains the various kinds of performance of the conventional pavement reflecting adhesive tapes, particularly retroreflection (namely reflection) performance. The novel pavement reflecting adhesive tape can also emit fluorescence of certain intensity. When used as pavement traffic marking lines or other marks, the novel pavement reflecting adhesive tape is more striking and can be clearly seen easily by drivers, so that the drivers can drive more safely at night.
Owner:亮线上海新材料科技有限公司

Radioluminescent Phototherapy Eye Device

Embodiments of the present disclosure are directed to a phototherapy eye device. In an example, the phototherapy eye device includes a number of radioluminescent light sources and an anchor. Each radioluminescent light source includes an interior chamber coated with phosphor material, such as zinc sulfide, and containing a radioisotope material, such as gaseous tritium. The volume, shape, phosphor material, and radioisotope material are selected for emission of light at a particular wavelength and delivering a particular irradiance on the retina (when implanted in an eyeball). The wavelength is in the range of 400 to 600 nm and the irradiance is substantially 109 to 1011 photons per second per cm2.
Owner:CALIFORNIA INST OF TECH

Low stress, water-clear zinc sulfide

The machinability of water-clear zinc sulfide articles produced by chemical vapor deposition and high temperature, high isostatic pressure (HIP) treatment is enhanced by extending the time over which the article is cooled following the HIP treatment. The resulting low stress, water-clear zinc sulfide articles can be more accurately finished / machined to precise shapes, such as are required in optical applications, than was previously possible.
Owner:HELLMA MATERIALS

Use of diester isosulfocyanate in sulphide ore floation and preparation method thereof

The invention discloses a diester-based 2-thiocyanate ester derivate applied in sulphide flotation, and the preparation method thereof. Diester-based 2-thiourea (the formula one) or diester-based 2-ethionine ester (the formula two) is applied as a novel collector for high efficiently recycling valuable sulfide minerals from metal sulphide ores by floatation. The collector has wide pH range in ore magma, thereby having strong ability to collect copper sulphide minerals such as chalcopyrite, etc., lead sulfide minerals or zinc sulfide minerals activated by copper ions, nickel sulfide minerals as well as noble metal minerals such as gold, silver, etc., and having good selectivity to gangue sulphide minerals such as iron pyrites, pyrrhotite, etc.
Owner:CENT SOUTH UNIV

Forming glutathione-capped and metal-doped zinc selenide/zinc sulfide core-shell quantum dots in aqueous solution

In a process of forming a capped crystal structure, a precursor solution is heated. The solution comprises a mixture of zinc (Zn) precursor, selenium (Se) precursor, precursor for a dopant, glutathione (GSH), and water. The dopant comprises a transition metal (M). The molar ratio of Zn:Se in the solution may be about 10:3 to about 10:5. The solution is heated for a first period sufficient to allow Zn(M)Se crystal core to form. After the first period of heating, more zinc precursor and GSH are added to the heated solution, and the solution is heated for a second period sufficient to form ZnS crystal shell on the Zn(M)Se crystal core. GSH is added in a sufficient amount to form a GSH layer around the Zn(M)Se / ZnS quantum dot.
Owner:AGENCY FOR SCI TECH & RES

Method for preparing cadmium selenide/cadmium sulfide /zinc sulfide core-shell quantum dots

The invention discloses the preparation method of low cost cadmium selenide (CdSe) / cadmium sulphide (CdS) / zinc sulphide (ZnS) quantum point. The invention is characterized in that ethide xanthic acid cadmium and ethide xanthic acid zinc are adopted to be respectively dissolved in the mixed solvent of oleic amine and oleic acid, as well as cadmium stearate and zinc stearate; as the front dirking liquid of clads CdS and ZnS of a SdSe quantum point, the invention is slowly dropped into the mixed liquor of octadecene and octadecylamine dissolved with CdSe quantum point, so as to obtain CdSe / CdS / ZnS quantum points. The invention has the advantages that the price of the raw material is cheap, the toxicity is low, the operation is simple, and the mass synthesis is proper.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI

Method for inhibiting or controlling inorganic scale formations with copolymers of acrylamide and quaternary ammonium salts

A formulation containing a copolymer derived from a cationic monomer effectively inhibits and controls the formation of inorganic scales. Suitable copolymers include those comprising an acrylamide unit and a quaternary ammonium salt group, and optionally an acrylate and / or nitrogen heterocyclic monomer including those wherein the quaternary ammonium salt is a unit of the formula:wherein R is methyl or hydrogen; R4 is a C1 to C6 alkyl group, optionally substituted with halogen, hydroxyl and alkoxy groups, X is halogen; and R1, R2 and R3 are independently selected from the group consisting of alkyl and alkoxy groups. Suitable nitrogen heterocyclic compounds include N-vinylpyrrolidone, N-vinylformamide, N-vinylacetamide, N-vinylcaprolactam, N-vinylimidazole and N-vinylpyridine. The copolymers have particular applicability in the control and inhibition of zinc sulfide or iron sulfide scales, typically formed when zinc bromide brines are used as fluids in the treatment of a gas or oil well, such as a completion fluid.
Owner:BAKER HUGHES INC

Method for inhibiting or controlling inorganic scale formations

InactiveUS7159655B2Favorable result inhibition and controlParticular in controlCleaning apparatusFluid removalZinc bromideSolubility
A formulation containing a copolymer derived from a cationic monomer effectively inhibits and controls the formation of inorganic scales. The formulation has particular application in the removal of zinc sulfide and iron sulfide scales formed when zinc bromide brines are used as completion fluids. The copolymer exhibit high solubility in high-density brines, such as zinc bromide brines. The polymers may be introduced into an oil or gas well as a portion of a carrier fluid or with brine. The preferred copolymer for use in the invention contains an acrylamide unit and a diallyldimethylammonium salt and, optionally, an acrylic acid or a salt thereof. The weight average molecular weight of such inhibitor copolymers is generally between from about 500,000 to about 5,000,000.
Owner:BAKER HUGHES INC

High-reflection silver mirror

An environmentally stable silver containing mirror having very high reflection values over a large spectral range comprises a silver containing layer disposed on a substrate, which is covered by a zinc sulfide layer. So that the sulfur being set free during the application or during the vaporization of the zinc sulfide to be applied, does not attack the silver, at least one barrier or intermediate layer is placed between the silver containing layer and the zinc sulfide layer.
Owner:OERLIKON TRADING AG TRUEBBACH

Thin film Inorganic Light Emitting Diode

A method for the manufacturing of a Thin Film Inorganic Light Emitting Diode is disclosed. The device contains in one single layer or in a double layer a dispersion of zinc sulfide doped with a luminescent center, and a water-compatible p-type semiconductive polymer, preferably a polythiophene / polymeric polyanion complex.
Owner:AGFA GEVAERT AG

Treatment method of zinc sulfide ore concentrates

The invention discloses a treatment method of zinc sulfide ore concentrates, which comprises the following steps of: (a) mixing and size-mixing the zinc sulfide ore concentrates with a sulfuric acid solution with the concentration of 120 to 170g / L, and supplying to a first pressurizing kettle; (b), subjecting the zinc sulfide ore concentrates to acid leaching to obtain a leaching solution and leaching residue; (c) supplying the leaching solution to a second pressurizing kettle, adding a neutralizing agent and an iron removal agent and simultaneously introducing pure oxygen in, and reacting for a second predetermined time in order to implement neutralization and iron removal and obtain a neutralization solution and neutralization residue; and (d) treating a second leaching solution by adopting zinc hydrometallurgy process in order to obtain metal zinc. Thus, full zinc hydrometallurgy in the true sense is accomplished by using the zinc sulfide ore concentrates as a neutralizing agent, oxygen pressure leaching, neutralization and iron removal are combined in one reaction kettle, thereby simplifying the process flow; and the reaction process is intensified through high temperature and pressurization, thereby further raising the leaching rate of zinc.
Owner:YUNNAN METALLURGICAL GROUP
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