1415results about How to "Highly corrosive" patented technology

The invention relates to a low-temperature smoke denitration SCR (silicon controlled rectifier) catalyst, which comprises a carrier, a manganese oxide, and composite oxide of one or more of Ce, Zr, Ti, Co, Fe and Cu, the mass content of manganese is 0.1-66 percent, and the total mass content of the Ce, Zr, Ti, Co, Fe or/and Cu is 0-50 percent; and glass fiber and/or kieselguhr is used as the carrier, wherein the glass fiber of the carrier is calcined for 2-4 hours at temperature of 400-600 DEG C, then placed in a nitric acid, sulfuric acid or hydrochloric acid solution with mass concentration of 5-40 percent for acidizing for 1-8 hours, washed by distilled water to be neutered, dried at temperature of 80-120 DEG C, and crushed to have the fineness of 20-325 meshes. The catalyst uses the glass fiber and the kieselguhr as the carriers, so that the dispersion effect of nanoparticles and specific surface area of the catalyst are increased, the high adsorptive capacity and strong heat resistance and corrosion resistance capacity are achieved, stronger toxic resistance capacity to sulfur dioxide and stream contained in the smoke is realized, the invention can be used for 10-200 DEG C of low temperature smoke denitration, and has strong water resisting and sulphur toxic resisting capacities.

The invention discloses a room-temperature-curable aqueous anticorrosion primer used for coating the external surface of a construction crane. The primer comprises the following components by weight: 35-45% of an aqueous resin, 5-8% of a curing agent, 1-3% of a dispersant, 5-12% of an antirust pigment, 20-35% of a pigment filling material, 1-2% of an anti-settling agent, 0.5-1% of a wetting agent, 0.5-1% of a thixotropic agent, 0.5-1% of an antifoaming agent, 0.1-0.8% of a flash etching inhibitor, 0.1-0.8% of a mildew inhibitor, 1-3% of a film-forming auxiliary agent and 10-20% of deionized water. The invention also discloses a preparation method of the aqueous anticorrosion primer. The aqueous anticorrosion primer has a room-temperature-curable paint film, is energy-saving and environment friendly, and can satisfy safe production requirements of enterprises; the primer is high in solidity, low in viscosity, convenient for construction; and the coating of the primer has good corrosion resistance and water proofness, and the comprehensive properties of the coating reach performance indexes of same-type oiliness products.

The invention belongs to the technical field of separating film materials, and discloses an adjustable and controllable ultrathin two-dimensional nano g-C3N4 film, and a preparation method and application thereof. The preparation method comprises the following steps of performing heat treatment on dicyandiamide or cyanurtriamide under an inert atmosphere to obtain caked g-C3N4; pulverizing the caked g-C3N4 and calcining under an air atmosphere to obtain g-C3N4 powder; dispersing the g-C3N4 powder in solvent to obtain g-C3N4 two-dimensional nanosheet solution; adding electrolyte solution for modifying; depositing a g-C3N4 two-dimensional nanosheet on a porous carrier of which the pore diameter is greater than 200 nanometers to form a two-dimensional g-C3N4 ultrathin film; and drying to remove the solvent so as to obtain the adjustable and controllable ultrathin two-dimensional nano g-C3N4 film loaded on the porous carrier. The g-C3N4 film is high in water permeability and high in separation efficiency, and has a wide application prospect.

The invention relates to a spraying device, in particular to a paint spraying device for parts and components of agricultural machinery. The technical problem to be solved by the present invention is to provide a paint spraying device for parts of agricultural machinery with high efficiency and good spraying effect. In order to solve the above-mentioned technical problems, the present invention provides such a paint spraying device for parts and components of agricultural machinery, including a bracket, etc.; The middle part of the side is connected with a stirring mechanism, the right side of the stirring mechanism is connected with the left wall of the bracket, the upper part of the spraying box is provided with a spraying mechanism, and the left side of the front part of the spraying box is connected with a box door through a hinge connection. The invention designs a paint spraying device for parts of agricultural machinery, which is provided with a stirring mechanism, which can stir the paint more fully, so that the spraying effect of the parts is better, and is provided with a spraying mechanism.

The invention discloses a TiC-WC base alloy guide roll and spool, valve seat in the metal ceramic and hard alloy manufacturing domain, which comprises the following parts: 30-60 wt percent TiC, 15-55 wt percent WC and 0-3 wt percent Ta as hard phase, 10-30 wt percent Co+Ni as adhesive phase and 0-3.0 wt percent Cr as grain growing inhibitor. The density of product is 0.3-0.5 times as WC base hard alloy density with 2500 N per mm2 anti-bending strength and 87.0-90.5 percent rigidity HRA, which possesses light quality, high rigidity and abrasion-proof property.

The invention belongs to a technical field of waste gas treatment, in particular to a device used for treating the malodorous gas of municipal facilities and a method thereof. The device of the invention consists of a filter screen, a plasma reactor, a honeycomb activated carbon bed and a blower which are connected in sequence; wherein the plasma reactor adopts the structure form of a double medium barrier discharge plasma and is formed by the combination of a plurality of plasma reaction tubes; the honeycomb activated carbon bed is an absorption-catalysis oxidative bed and adopts the honeycomb activated carbon as a filling layer. The particles such as the dust in the waste gas are filtered out through the filter screen and enter into the plasma reactor, and a series of reactions occur to the malodorous matter in the bombardment of high energy electrons, and a little un-reacted malodorous matter is further treated through the honeycomb activated carbon bed. The blower which is arranged at the back of the device thus ensures the reaction device in negative pressure conditions so as to avoid the leakage of the malodorous gas. The device and the method provided by the invention have a large processing capacity of the malodorous gas and are high in processing efficiency.

The invention provides a method for extracting lithium from salt lake brine. The method comprises the following steps: 1) preparing extract organic phases which comprise a composite extracting agent and a diluent, wherein the composite extracting agent is prepared by mixing tributyl phosphate with N,N-bis(2-ethylhexyl)-3-butanone acetamide according to a volume percent ratio of 50% to 50%; the diluent is sulfonated kerosene; 2) preparing an extract water phase which is an LiCl-MgCl2-H2O system; 3) adding HCl and FeCl3.6H2O to the extract water phase, wherein the ratio of amount of substances of iron and lithium is controlled to be 1.3 to 1, the acid concentration is 0.5mol/L, and the lithium concentration is 1-3g/L; 4) standing after fully mixing the extract water phase obtained in the step 3) with the extract organic phases obtained in the step 1) in a volume ratio of 1 to 2, and then separating a liquid phase. By adopting the method, the problems that the corrosivity of high-concentration tributyl phosphate towards extraction equipment is stronger and the dissolution loss of the extracting agent in water is serious in long-term operation are solved, and the lithium extraction efficiency of the prior art is achieved. The extraction method is simple and reliable to operate.

Aiming at the current situation of the cotton dissolving pulp and the wood dissolving pulp and the characteristics of the bamboo and the defects in the existing preparation of the dissolving pulp, the invention provides a method for preparing a chemical bamboo dissolving pulp. The chemical dissolving pulp produced can be widely applied in the cellulose derivative industries such as spinning viscose fiber, nitrocellulose and acetate fiber. The method comprises the following steps of: material preparation, cooking, screening, scrubbing, bleaching and paper making. The cooking procedure comprises two grades of cooking steps, wherein the primary cooking procedure is continuous cooking and the secondary cooking procedure is continuous cooking or intermittent cooking; and the bleaching procedure is elemental chlorine free bleaching or totally chlorine free bleaching. The invention solves the problems existed in the cooking and bleaching procedures. The chemical bamboo dissolving pulp can be prepared with high efficiency, low energy consumption, low material consumption and low pollution.

The invention discloses an organic amine compound absorbent for removal of carbon dioxide in fire coal flue gas; the organic amine compound absorbent comprises the following components: by mass, 10%-45% of a main absorbent component, 0-10% of an assistant absorbent component, 0.01%-6% of a corrosion inhibitor, 0.01-3% of an antioxidant, 0-5% of a defoaming agent and the balance of water; wherein the main absorbent component comprises the following components: account for the total mass percentage of the organic amine composite absorbent, 3%-20% of monoethanolamine MEA, 0-12% of 2-amino-2-methyl-1-propanol AMP, 1%-15% of sun of piperazine PZ and N-aminoethyl piperazine AEP and 1%-12% of sum of aminoethyl ethanolamine AEEA and N-methyl monoethanolamine MMEA; and the assistant absorbent comprises one or a plurality of component selected from the group comprising diethanol amine DEA, diethylenetriamine DETA, triethylene tetramine TETA, N-methyldiethanolamine MDEA, sulfolane and tertbutylaminoethoxyethanol TBEE. The organic amine compound absorbent has the advantages of good stability, large absorption capacity, high purification degree, low regeneration energy consumption, good desorption effect, great reduction of degradation loss of the compound absorbent in the process of using, and the like.

The invention relates to a dye device, particularly relates to a non-woven lifting dye device for garment production, and aims at solving the technical problem of providing a non-woven lifting dye device for garment production, which is capable of flatly putting non-woven into a dye for dyeing. In order to solve the technical problem, the invention provides the non-woven lifting dye device for garment production. The non-woven lifting dye device for garment production comprises a dye box, a connecting rod, a support rod, a lifting mechanism, a lifting frame, a guide roller and the like, wherein the upper part of the left side outside the dye tank is connected with the connecting rod; the top of the connecting rod is connected with the support rod; the support rod is connected with the lifting mechanism; and the lower side of the lifting mechanism is connected with the lifting frame. Through the lifting mechanism, the targets of driving the lifting frame to descend through the lifting mechanism, driving the guide roller at the inner side to descend through the lifting frame and flatly pressing the non-woven into the dye box for dip dyeing through the guide roller at the inner side are achieved.

The invention relates to apolishingequipment, in particular to a polishing equipment for industrial steel pipes, and provides a polishing equipment for industrial steel pipes polishing uniformly, having less harm to people and saving both time and effort. In order to solve the technical problems, the invention provides the polishing equipment for industrial steel pipe. The polishing equipment for industrial steel pipes comprises a base plate, a first support plate, a second support plate, a first sliding rail, a first bearing pedestal, a second bearing pedestal, a positioning device, a steel pipe, a first gear and a first motor. The first support plate is welded at the left side of the base plate. The second support plate is welded at the right side of the base plate. The second support plate is arranged at the right of the first support plate. The polishing equipment for industrial steel pipes achieves the effect of uniform polishing, less harm to people and saving both time and labor during polishing through rotating steel pipes and moving polishing wheels.

The invention relates to burring equipment, in particular to rapid burring equipment for hardware parts. The rapid burring equipment for the hardware parts aims at achieving the technical effects that operation is convenient, working efficiency is high, and burring is thorough. In order to achieve the technical effects, the rapid burring equipment for the hardware parts comprises supports, a bottom plate, first sliding rails, first sliding blocks, a lifting device, a first rotating device, a second rotating device, a fixing device, a top plate, a fixing plate and the like; the supports are welded to the left side and the right side of the top of the bottom plate, the first sliding rails are connected to the upper portions of the supports in a bolted connection mode, and the first sliding blocks are connected to the first sliding rails in a sliding mode. An electric push rod is controlled to stretch and retract, a fan-shaped gear is matched with a rack, the fixing plate can move up and down, the effect of adjusting the height of a grinding wheel is achieved, and a worm wheel is matched with a worm.

The invention relates to a grinding device, in particular to a graphite powder multistage grinding device for new energy battery production. The technical problem to be solved by the present invention is to provide a graphite powder multistage grinding equipment for new energy battery production that can fully crush graphite and automatically add graphite for grinding. In order to solve the above technical problems, the present invention provides such a graphite powder multi-stage grinding equipment for new energy battery production, including a box, a filter screen, a mounting plate, a motor, a first rotating rod, a connecting rod, a storage box, etc.; The bottom wall of the box is connected with a filter screen, the lower side of the right wall of the box is connected with a mounting plate, the motor is installed on the right side of the top of the mounting plate, the output shaft of the motor is connected with the first rotating rod, and the upper side of the left wall of the box is connected with a connecting rod . The present invention designs a graphite powder multi-stage grinding equipment for new energy battery production. The first rotating rod drives the moving plate to move left and right so that the graphite is intermittently dropped from the storage box into the box.

The invention discloses a novel process for preparing acetyl bromide, acetic acid and acetic ester from methane, which consists of reacting methane, oxygen and aqueous solution of HBr to obtain CH3Br and CO through catalytic reaction, then subjecting CH3Br and CO to carbonation reaction so as to prepare acetyl bromide in organic medium containing catalyst, then directly hydrolyzing the acetyl bromide and a certain amount of water into acetic acid, and reacting acetyl bromide and alcohols to obtain the acetic esters of the corresponding alcohols. The HBr can be regenerated as circular reaction medium and used again for the reaction for preparing CH3Br and CO from methane. The organic medium of the carbonylation reaction contains catalyst such as rhodium (Rh) compound, hydriodate and/or organo-phosphorus ligand, and a certain proportion of solvents.

A high-toughness steel welded with high linear energy (More than 50 KJ/cm) and resisting molten zinc corrosion is prepared through converter smelting at 1250-1320 deg.C, vacuum treating, and rolling at 1000-1180 deg.c or lower than 950 deg.C and cumulative drafts rate is greater than or aqual to 50%. It features that composite Ti oxide is used to resist high linear energy, the Nb, V, etc. and used for raising strength, and the Cu, Ni, B and RE are used to resist molten zinc corrosion. Its advantages are simple technology with high efficiency, low cost, and high performance of finished steel.

The invention belongs to the field of household garbage pre-treatment, and particularly relates to environmental protection and deodorization equipment for a household garbage transfer station. The environmental protection and deodorization equipment for the household garbage transfer station can purify odor, facilitate garbage disposal, and prevent microorganism from breeding, and comprises a base, a fixed plate, a top plate, rotating shafts, fixed links, a garbage can, a lifting device, a gas-collecting hood, an odor treatment device, an exhaust fan, and the like; and the fixed plate is arranged on the left side of the top of the base, a square groove is formed in the middle portion of the fixed plate, the fixed links are arranged on the front side and the back side of the middle portion of the right wall of the fixed plate correspondingly, and the rotating shafts are arranged on the middle portions of the two fixed links correspondingly. The environmental protection and deodorization equipment for the household garbage transfer station achieves the effects of purifying the odor, facilitating garbage disposal, and preventing the microorganism from breeding, and is novel in structure, environment-friendly, and beneficial to the construction of urban and rural garbage transfer stations.