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1732 results about "Antimony oxide" patented technology

Antimony oxide may refer to any of the following: Diantimony tetroxide, Sb₂O₄ Antimony trioxide, Sb₂O₃ Antimony pentoxide, Sb₂O₅

Coating composition, process for preparing coating composition and process for preparing dispersing component of inorganic oxide sol

A coating composition which comprises (A) a resin having a glass transition temperature of 50 to 120 DEG C., a number average molecular weight of 2,000 to 100,000, a hydroxyl value of 50 to 150 mgKOH/g and an acid value of 1 to 25 mgKOH/g, which is produced by copolymerizing 10 to 90 percent by weight of (a) a (meth)acrylic acid ester of a C1 to C12 alkyl alcohol, 10 to 50 weight % of (b) a first polymerizable double bond-containing and hydroxyl group-containing monomer, 0.1 to 10 weight % of (c) a polymerizable double bond-containing and carboxyl group-containing monomer, 0 to 20 weight % of (d) styrene, 0 to 20 weight % of (e) acrylonitrile and 0 to 10 weight of (f) a second polymerizable double bond-containing monomer, (B) at least one compound selected from the group consisting of a polyisocyanate compound having two or more unblocked isocyanate groups and/or blocked isocyanate groups in the molecule and an aminoplast resin, (C) a dispersing component of at least one inorganic oxide sol selected from the group consisting of an aluminum oxide sol, a silica sol, a zirconium oxide sol and an antimony oxide sol, wherein an amount of a nonvolatile matter of component (C) is 5 to 60 percent by weight based on a total amount of nonvolatile matter of resin (A), compound (B) and component (C). The coating composition provides cured films having excellent weathering resistance, light resistance, stain resistance, stain-removing property, chemical resistance, moisture resistance and appearance and is environmentally friendly and safe.
Owner:BASF NOF COATINGS CO LTD

Method for separating antimony and arsenic from antimony and arsenic-containing ash through oxidation and alkaline leaching

The invention relates to a method for separating antimony and arsenic from antimony and arsenic-containing ash through an oxidation and alkaline leaching process. The method comprises the specific steps that the antimony and arsenic-containing ash and an alkaline solution with a certain concentration are mixed and then placed in an alkali-resisting and pressure-resisting reaction kettle, and a gaseous oxidizing agent of a certain pressure is introduced into the reaction kettle to conduct a reaction at a certain temperature; after the reaction is completed, liquid-solid separation is carried out when slurry is cooled to the temperature below 90 DEG C, and a liquid phase is returned to the pressure alkaline leaching procedure; a filter cake is subjected to multistage countercurrent washing and filtering with hot water, and arsenic-enriched washing liquid and an antimonite filter cake are obtained; the antimonite filter cake can serve as an antimony concentrate for preparation of antimony oxide powder; and the arsenic-enriched washing liquid is evaporated, then cooled and crystallized, the crystallization end-point temperature and the crystallization time are controlled, arsenate crystals can be obtained after liquid-solid separation, and crystallization mother liquor is alkaline liquor containing a little amount of arsenic and is returned for the leaching process of the antimony and arsenic-containing ash. By means of the method, the process is simple, antimony and arsenic are separated thoroughly, harm caused by arsenic volatilization during the roasting process and arsenic hydride gas produced through the acid leaching process can be avoided, and environmental friendliness is achieved.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI +1

Polyester polycondensation with catalyst and a catalyst enhancer

The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic composition containing a titanyl oxalate catalyst and a metallic oxalate catalyst enhancer and optionally containing a metallic cocatalyst such as an antimony based catalyst. A synergistic relationship has been discovered between titanyl oxalate catalyst and the catalyst enhancer. A synergistic relationship has also been discovered between the titanyl oxalate catalyst, catalyst enhancer and a metallic cocatalyst such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by the polycondensation of polyester forming reactants in the presence of a catalytically effective amount of a polycondensation catalyst, wherein the improvement comprises utilizing, as the polycondensation catalyst, the novel catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer such as a nontitanyl metallic oxalate like lithium oxalate and optionally containing a metallic catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate/catalyst enhancer composition can be used as a polycondensation catalyst in combination with other catalysts to achieve synergistic catalytic activity. Preferred is a combination of lithium or potassium titanyl oxalate, Li2 or K2TiO(C2O4)2, lithium or potassium oxalate, Li2 or K2(C2O4)2 with antimony oxide or antimony triacetate or antimony trisglycoxide.
Owner:ARKEMA INC

Method and device for smelting jamesonite by bottom-blowing pool

The invention relates to a method and a device for smelting jamesonite by a bottom-blowing pool. The method comprises the following steps of: performing pool smelting, oxidation and desulfurization on the jamesonite by using a bottom-blowing oxidation furnace to produce antimony-containing high-lead slag, a lead-antimony alloy and flue gases suitable for acid preparation; reducing the antimony-containing high-lead slag and blowing the lead-antimony alloy by using a bottom-blowing smelting furnace to produce antimony oxides and lead bullion capable of being used for electrolysis; and reducing the antimony oxides by using a bottom-blowing reduction furnace to produce needle antimony. In the smelting method of the invention, the three bottom-blowing furnaces and an electrically-heated settler are adopted to treat the jamesonite to produce the lead bullion, the needle antimony and the slag; therefore, compared with the prior art, the method has the advantages of short flow, good lead-antimony separation effect, fewer intermediate products, less revert, high resource utilization rate and production continuity; and the bottom-blowing oxidation furnace can realize spontaneous heating balance by sulfide combustion with low energy consumption and high recovery rate and can greatly reduce the cost.
Owner:JIYUAN YUGUANG NONFERROUS METALLURGY DESIGN & RES INST CO LTD

Intelligent nano transparent insulating glass coating

InactiveCN101993657AOvercome the disadvantage of needing to dryGood weather resistanceCoatingsVanadium dioxideIndium
The invention provides a preparation method of intelligent nano transparent insulating glass coating comprising organic silicon resin, nano-tin indium oxide or nano-tin antimony oxide pulp, nano-silica or nano-aluminium oxide pulp, doped nano-vanadium dioxide pulp, a diluent and an addition agent. The preparation method comprises the following steps of: mixing the pulp, respectively dripping the pulp, the diluent and the addition agent into the organic silicon resin, and stirring for 10-30 minutes to obtain synthetic intelligent nano transparent insulating glass coating. The test shows that after the intelligent nano transparent insulating glass coating is coated on a white glass with thickness of 5mm, the heat-insulating property of the white glass is greatly increased, and the corresponding transmittance of visible light is higher; after the intelligent nano transparent insulating glass coating is coated on the glass, the transmission of near infrared rays of the glass can be reduced at the temperature above 35DEG C, and the transmission of near infrared rays of the glass can be increased at the temperature below 35DEG C, thereby the automatic regulation of the near infrared ray transmission of the glass along with the temperature variation can be realized and the contradiction of heating in winter and shading in summer is overcome so that the thermal property of the energy-saving glass can be intelligently regulated along with climatic change. The intelligent nano transparent insulating glass coating realizes the functions of insulating heat in winter and shading, lighting and insulting in summer and has higher energy-saving effect.
Owner:BEIJING BUILDING TECH DEV

Inorganic thermal insulation material and preparation method thereof

The invention provides an inorganic thermal insulation material and a preparation method thereof. The material is obtained through the following steps of: mixing silica aerogel, soluble silicate, compound of structural formula (I), tin antimony oxide and hollow glass bead, adding a coupling agent into the above mixture for modification, mixing the resulting mixture with water, causing the resulting solution to infiltrate a glass fiber mat, and obtaining the material by processing the infiltrated glass fiber mat by means of hot-press forming. Compared with the prior art, the invention has the following advantages: firstly, hydrophobic treatment by modification is carried out, hydrophobic groups in a material nanometer microporous reticulated structure is exposed due to the action of the coupling agent so that the inorganic material has good water resistance, supercritical fluid drying is not needed and production cost is reduced; secondly, inorganic nanometer materials and inorganic fibers are adopted so that the compressive strength, tensile strength and rupture strength of the inorganic thermal insulation material are all pretty high, the bonding strength of the inorganic thermal insulation material with a base course is also pretty high, and the structure is stable; and finally, the silica aerogel causes the inorganic thermal insulation material to have a nanometer grade micro-closed-hole reticulated structure so that the heat conductivity coefficient of the inorganic thermal insulation material is reduced and thermal insulation performance is improved.
Owner:BEIJING BOTIANZIRUI TECH CO LTD

Antimony sulfide concentrate oxygen-enriched melting tank melting method

ActiveCN103173636ARealize self-heating meltingThe mass percentage is reducedMelting tankHigh energy
The invention discloses an antimony sulfide concentrate oxygen-enriched melting tank melting method. For solving problems of high pollution and high energy consumption of existing blast furnace volatilization melting technologies, and the impossibility of practical industrialization of existing oxygen-enriched melting tank melting technologies, the antimony sulfide concentrate oxygen-enriched melting tank melting method provided by the invention comprises the steps that: (1) material blending is carried out, wherein antimony concentrate limestone, quartz sand and iron ore are blended; (2) the blended material is granulated; (3) melting is carried out, wherein antimony sulfide is subjected to a volatilization or oxidation reaction and enters flue gas, and partial antimony sulfide enters melting slag through the oxidation reaction; (4) smoke dust recovery is carried out; (5) antimony oxide in the melting slag is reduced into metal antimony; (6) crude antimony and reduction slag are discharged in a stratified manner; wherein the crude antimony is used to be refined into refined antimony, and precious metal is recovered. With the method provided by the invention, antimony sulfide concentrate self-heat melting is realized, energy saving and consumption reducing are realized, and antimony and gold recovery rates are greatly improved. Antimony white has good quality, and can be directly subjected to reduction melting to produce refined antimony.
Owner:CENT SOUTH UNIV +1

Chemical powder components of 2507 type super double-phase stainless steel flux-cored wire

The invention belongs to the field of welding materials and discloses chemical powder components of a 2507 type super double-phase stainless steel flux-cored wire. A common 304L stainless steel metal strip is used as an outer skin; the chemical powder components are filled inside the common 304L stainless steel metal strip to be rolled into a flux-cored wire. The chemical powder components of the 2507 type super double-phase stainless steel flux-cored wire are characterized by comprising the following components in percent by mass: 19 percent-38 percent of rutile, 3 percent-5 percent of zircon sand, 2 percent-4 percent of potassium fluoroaluminate, 1 percent-2 percent of aluminium magnesium alloy, 1 percent-3 percent of chromium nitride, 30 percent-35 percent of metallic chrome, 8 percent-10 percent of metallic nickel, 1 percent-2 percent of electrolytic manganese metal, 14.5 percent-20 percent of metallic molybdenum and 0.5 percent-1 percent of antimony oxide. In the invention, the steel pipe made from the 304L stainless steel strip (with the specification of 10*0.4mm) filled with the chemical powder is manufactured into the super double-phase stainless steel flux-cored wire according to the general production process. CO2 is used as welding protection gas for the flux-cored wire, and the flux-cored wire has the characteristics of good welding operation process performance, attractive welding line moulding, excellent welding process performance, favorable balance of welding tissue austenite and ferrite and the like.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP

Polyester polycondensation with catalyst and a catalyst enhancer

The present invention is based upon the discovery that nontitanyl oxalates can enhance the catalytic functionality of titanyl oxalate catalysts. This invention provides a novel catalytic composition containing a titanyl oxalate catalyst and a metallic oxalate catalyst enhancer and optionally containing a metallic cocatalyst such as an antimony based catalyst. A synergistic relationship has been discovered between titanyl oxalate catalyst and the catalyst enhancer. A synergistic relationship has also been discovered between the titanyl oxalate catalyst, catalyst enhancer and a metallic cocatalyst such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by the polycondensation of polyester forming reactants in the presence of a catalytically effective amount of a polycondensation catalyst, wherein the improvement comprises utilizing, as the polycondensation catalyst, the novel catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer such as a nontitanyl metallic oxalate like lithium oxalate and optionally containing a metallic catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate / catalyst enhancer composition can be used as a polycondensation catalyst in combination with other catalysts to achieve synergistic catalytic activity. Preferred is a combination of lithium or potassium titanyl oxalate, Li2 or K2TiO(C2O4)2, lithium or potassium oxalate, Li2 or K2(C2O4)2 with antimony oxide or antimony triacetate or antimony trisglycoxide.
Owner:ARKEMA INC
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