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5843results about How to "Avoid generating" patented technology

Method for comprehensively recycling valuable metals from spent lithium ion battery

The invention discloses a method for comprehensively recycling valuable metals from a spent lithium ion battery. The method comprises the following steps: carrying out electric discharge treatment on a spent battery, crushing, pre-roasting at 300-400 DEG C, adding a reducing agent, and carrying out reduction roasting at 450-700 DEG C; carrying out water extraction and evaporative crystallization on fine aggregates obtained through the reduction roasting, so as to obtain a high-purity lithium product, leaching copper, nickel and cobalt from leached slag and roasted lump materials by virtue of ammonia oxide, carrying out magnetic separation and sieving on ammonia leaching slag so as to obtain iron and aluminum enriched products, and carrying out reduction acid leaching, purification and edulcoration on sieved products, so as to obtain a high-purity manganese sulfate solution; and carrying out extraction and selective reverse extraction on ammonia leaching liquid, so as to obtain a high-purity nickel sulfate solution and a high-purity copper sulfate solution, and carrying out vulcanization cobalt precipitation, oxidation acid leaching and extraction purification on raffinate, so as to obtain a high-purity cobalt sulfate solution. The method is high in extraction rate of valuable metals and applicable to the treatment of multiple waste lithium ion battery raw materials and efficient utilization of multiple elements, and sorting is not required.
Owner:GUANGDONG GUANGHUA SCI TECH

Catalyst for dehydrogenation of propane for preparing propylene and preparation method thereof

ActiveCN101972664BHigh propane conversionExcellent anti-coke performanceMolecular sieve catalystsHydrocarbonsChemistryMolecular sieve
The invention discloses a catalyst, which is carried by an AlSn-SBA-15 molecular sieve with SnAl double metal-containing framework, for dehydrogenation of propane for preparing propylene. In the catalyst, the AlSn-SBA-15 molecular sieve with SnAl double metal-containing framework is used as a carrier, platinum-group element metal is used as a main catalyst, IVA-group, IA-group or IIA-group element metal is used as an auxiliary agent, and high-temperature-resistant inorganic oxide is used for forming an adhesive. A multi-step dipping method is used in the preparation of the catalyst, namely the alkaline metal auxiliary agent is dipped, so that the acidity and alkalinity of the catalyst and the types of cations in pores of the molecular sieve are effectively modulated by cation exchange technology, and the platinum-group element metal is dipped. The catalyst has superior anti-carbon deposit performance, high propane conversion rate under the reaction conditions of high temperature and low pressure, propylene selectivity and reaction stability.
Owner:CHINA PETROLEUM & CHEM CORP

Method of manufacturing device having flexible substrate and device having flexible substrate manufactured using the same

The present invention relates to a method of manufacturing a device having a flexible substrate and a device having a flexible substrate manufactured using the method. According to the method of manufacturing a device having a flexible substrate of the invention, glass is used as a mother substrate, a polymer layer, which is used as a substrate, is formed on the mother substrate using a chemical vapor deposition method or a vacuum evaporation method, a device is formed, and finally, the substrate where the device is formed is separated from the mother substrate, such that a large-scale device having a flexible substrate can be manufactured. Further, as a substrate forming an organic light emitting device and a sealant are formed of the same material, the device is not bent due to stress generated from the device itself after the device is manufactured.
Owner:LG DISPLAY CO LTD

Electric wire coated with polyvinyl chloride resin composition and cable

An electric wire with coating of polyvinyl chloride family resin composition is characterized by having a coating layer including polyvinyl chloride family composition obtained from adding more than one of any calcium soap, zinc soap and hydrotalcite to resin including polyvinyl chloride resin as a main constituent, and further adding thereto plasticizer so as to obtain a heat-stable vinyl chloride composition, and further adding thereto as stabilization auxiliaries high-melting-point β-diketone compound having a melting point more than 100° C. out of β-diketone compounds expressed by a general formula of R.CO.CH2.CO.R′.
Owner:TAISEI CORP +1

Switch device

A switch device, includes a device main body incorporating a fixed pressure contact portion and includes a fixed sliding contact portion that forms a circuit together with the fixed pressure contact portion, and at least one pair of switches supported on the device main body, each switch comprising an operating knob. One switch of the at least one pair of switches includes a pressure-operated switch includes a movable pressure contact portion corresponding to the fixed pressure contact portion, and another switch includes a slide-operated switch includes a movable sliding contact portion corresponding to the fixed sliding contact portion.
Owner:KK TOKAI RIKA DENKI SEISAKUSHO

Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core

There is provided a method for manufacturing a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to manufacture the cylinder by a die casting method such as a high-pressure die casting method at low cost and in high accuracy. The insert core to be employed herein includes: a cylindrical body having substantially the same outer diameter as the diameter of bore of the cylinder to be obtained; a scavenging port-forming portion projecting radially outward from the cylindrical body and having substantially the same cross-sectional configuration as that of the scavenging port; a suction port-forming portion projecting radially outward from the cylindrical body and having substantially the same cross-sectional configuration as that of at least the cylinder bore-side end portion of a suction port; and an exhaust port-forming portion projecting radially outward from the cylindrical body and having substantially the same cross-sectional configuration as that of at least the cylinder bore-side end portion of an exhaust port.
Owner:KIORITZ

Process for welding 800MPa high-strength steel without preheating

ActiveCN1962151AStrong resistance to crack generation and propagationImprove crack resistanceArc welding apparatusFurnace typesWeld seamEngineering
The invention relates to a non-preheat welding method of high-strength steel whose tensile strength 800MPa, wherein it comprises (1), the connector has V-shape slope cut; (2), cleaning the slope before welding; (3), using impulse welding power source to weld in Ar+CO2 mixed gas or CO2 gas, while the welding voltage is 30-34V, the welding current is 200-240A, the welding speed is 0.4cm / s-0.6cm / s, the welding heat input is 10kJ / cm-20kJ / cm, and the protect gas flux is 15L / min-25L / min;(4), using 600MPa or 700MPa drug welding or solid welding wire to weld bottom, while other welding channels use 800MPa drug welding wire to multilayer weld, without intermission; (5), using alumina silicate plate to cover the welding head, to cool. The invention can avoid preheat and following thermal treatment, with low cost, while the welding seam has high flexibility.
Owner:BEIJING CHONGLEE MACHINERY ENG

Preparation method of high-performance anti-corrosion repairing mortar

A preparation method of high-performance anti-corrosion repairing mortar including following components, by weight: 150-250 parts of cement, 280-725 parts of quartz sand, 50-200 parts of mineral powder, 50-150 parts of fly ash, 0-50 parts of silicon ash, 5-10 parts of barium nitrate, 0.1-1 part of an early strength agent, 1-4 parts of PP fibers, 0.5-20 parts of latex powder, 0.5-5 parts of cellulose ether, 0.5-2 parts of a water repellent agent, 0.001-0.1 parts of an air entraining agent, 0.1-2 parts of a water reducing agent, 0-1 part of a defoaming agent, and 100-250 parts of water. The invention, aiming to the characteristic of sulphate attack and the performance requirement of repairing mortar, discloses the repairing mortar which can repair the surface of damaged concrete with a protective film formed thereon to prevent the concrete form being corroded again. The repairing mortar is good in construction performance, can be used for coating the surface of the damaged concrete or filling damaged positions of the concrete. The repairing mortar is high in bonding strength and strength, is good in anti-permeability and flexibility, is simple in preparation process, is especially suitable for repairing the concrete subjected to sulphate attack, is great in market prospect and is good in practicability.
Owner:潍坊德霖建材科技有限公司

Optical element package

An optical packaged body capable of preventing generation of a wrinkle, deflection, and warpage, capable of being thinned is provided. The optical package body includes a support medium and a packaging film that covers the support medium in a state of being applied with shrinkage force. The packaging film has an optical function section that acts on light from a light source in at least one of a first region into which the light from the light source enters and a second region from which the light from the light source is emitted after passing through the optical packaged body when the light source is arranged on one face side of the optical packaged body.
Owner:SONY CORP
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