73results about How to "Environmentally friendly and safe" patented technology

The invention discloses a water-based environment-friendly finishing paint, which is prepared from the following compositions in part by weight: 20 to 70 parts of water borne acrylic resin solution of which the solid content is 30 to 80 percent and/or 20 to 70 parts of water borne epoxy resin solution of which the solid content is 30 to 80 percent, 4 to 10 parts of water borne amino resin solution of which the solid content is 60 to 98 percent; 1 to 5 parts of organic amine, 0.2 to 2 parts of wetting and leveling agent, 0.2 to 2 parts of thickener, 0.1 to 0.8 part of defoaming agent, 1 to 5 parts of adhesion promoter, 0.2 to 5 parts of catalyst, 10 to 30 parts of alcohol diluting solvent and/or 1 to 5 parts of nontoxic ether diluting solvent, and 20 to 50 parts of deionized water, wherein the catalyst is one or more of ammonias, alcohols and benzenesulfonic acids. The water-based environment-friendly finishing paint has the advantages of wide applicable range, high hardness, good flexibility, strong adhesion, good scratchproof performance, and environmental protection. Simultaneously, the invention also discloses a method for preparing the water-based environment-friendly finishing paint.

The invention relates to an aqueous environment-friendly packaging steel drum paint, which is prepared by mixing the following compositions in part by weight: 20 to 70 parts of aqueous solution of acrylic resin with a solid content of 30 to 80 percent and/or aqueous solution of epoxy resin with the solid content of 30 to 80 percent, 4 to 10 parts of aqueous solution of amino resin with the solid content of 60 to 98 percent, 1 to 5 parts of organic amine, 1 to 50 parts of filling materials with the granularity of more than 2,000 meshes, 0.5 to 10 parts of color paste, 0.2 to 2 parts of wetting levelling agent, 0.2 to 2 parts of thickening agent, 0.1 to 0.8 part of antifoaming agent, 1 to 5 parts of adhesive force accelerant, 0.2 to 5 parts of catalyst, 0 to 30 parts of alcohol diluting solvent and/or 0 to 5 parts of non-toxic ether diluting solvent, and 20 to 50 parts of deionized water. The aqueous environment-friendly packaging steel drum paint has the advantages of wide application range, high rigidity, good flexibility, strong adhesive force and good anti-scraping and anti-collision properties and environmental protection; and meanwhile, the invention discloses a preparation method for the aqueous environment-friendly packaging steel drum paint.

The invention discloses a device to carry out weeding, pest eliminating and sterilizing by using microwaves. The device consists two relatively parts of a microwave radiator and a power. The microwave radiator part comprises a bugle antenna, a resonance cavity, a permatron, a circulating device, a coupler, a control panel, a running device and an anti-leakage device, etc. The power part comprises a transformer and a rectifier, etc. When working, the microwave radiator moves and the power part does not move together with the microwave radiator; the power part feeds energy to the microwave radiator through a flexible feed wire, thus reducing the weight and size of the microwave radiator, being convenient for operating in a narrow and small space (such as a greenhouse, etc), being more convenient for miniaturization and mechanization and being beneficial to improve the planting manufacture efficiency of a protection field. The device adopts microwaves to prevent disease and pest with the advantages of convenient operation, no residue, friendly environment, which is helpful for carrying out nuisanceless agricultural production, suitable for the nuisanceless production like gardening plants such as vegetables, fruits and flowers, etc., and plants like medicinal materials, etc., in particular to the fine agricultures of the protection filed, etc.

The invention relates to the technical field of mineral separation, in particular to a novel tailings dewatering process which is characterized by comprising the following steps of: firstly, feeding tailings to a swirler, feeding settled sand of the swirler to a dewatering screen, feeding overflow of the swirler to a thickener, and returning undersize products of the dewatering screen to the swirler, wherein the undersize products of the dewatering screen are final products with water content of 14-16 percent; and feeding the overflow of the thickener to a clarifier, feeding underflow of the thickener to a filter press, recycling water separated from the clarifier, feeding the underflow of the clarifier to the filter press, and returning filtrate of the filter press to the thickener, wherein filter cakes of the filter press are final products with water content of 9-10 percent. The invention can realize tailings online dewatering, thereby saving funding, enabling the tailings to be directly used online, ensuring the smooth operation of subsequence works, and being beneficial to the environment protection and the production safety.

The invention relates to a method for preparing a copper-indium-gallium-selenium thin film. The method is characterized in that: a copper-indium-gallium-selenium single-target magnetron sputtering and selenized annealing process is used. The method comprises the following steps of: arranging a Mo target and a CuIn0.75Ga0.25Se2 target in a magnetron sputtering cavity; sputtering double-layer Mo by using a direct-current power supply; sputtering a copper-indium-gallium-selenium prearranged layer by using a radio frequency power supply; and performing selenized annealing on the prearranged layer in a tubular furnace by using an elemental Se source in an Ar airflow so as to obtain the copper-indium-gallium-selenium thin film. The copper-indium-gallium-selenium thin film has a chalcopyrite phase structure and can be used as a light absorbing layer of a thin film solar cell. The method provided by the invention has the advantages of simple process and low cost, contributes to environmental friendliness and is suitable for large-area preparation.

The invention discloses a soil adjuster to prevent Cruciferae crop from clubroot, which comprises the following parts: 10-50% organics, 10-60% calcium magnesium phosphate fertilizer, 15-80% carbonate, 0. 8-5% potassium, 0. 8-5% magnesium, 0. 8-5% zinc, 0. 8-5% boron, wherein the wild or cultivated organics adopts Tagetes plant as raw material; the wild plant can be harvested during blossom period, which is dried and grinded into powder. The invention can avoid the clubroot to 80-95%, which is economic, safe, high-effective and convenient.

The invention relates to a method for preparing a vulcanization type gasoline hydrogenation upgrading catalyst. Gasoline hydrogenation catalysts are treated by vulcanizing agents with multiple sulfur ions and organic nitride which is used as a passivator at the low temperatures, active components in the gasoline hydrogenation catalysts comprise a type or a plurality of types of Mo and W of VI B groups and Co and Ni of VIII B groups, and stabilizers comprise a type or a plurality of types of Zn and Cd of II B groups, Na and K of I A groups and rare earth metal La and Ce. The method has the advantages that cascade full vulcanization can be carried out on metal oxide or precursors of the metal oxide, and strong acidic sites in ZSM-5 molecular sieve composite carriers can be selectively passivated; the vulcanization type gasoline hydrogenation upgrading catalyst prepared by the aid of the method is short in on-stream time, high in hydrogenation and olefin reduction upgrading activity, selectivity, carbon deposition resistance and liquid yield and low in octane number loss, and accordingly the method and the vulcanization type gasoline hydrogenation upgrading catalyst are particularly applicable to producing clean gasoline components from inferiorly catalytically cracked gasoline by means of hydrogenation and olefin reduction upgrading at a low cost.

The invention relates to a preparation method of dehydrated anti-rust oil. The preparation method comprises the following steps of: adding 10-20 parts by weight of white oil No 5 into a reaction kettle, heating to the temperature of 110-120 DEG C while stirring so as to dehydrate, adding 3-10 parts by weight of petroleum calcium sulfonate, 2-5 parts by weight of lanolin magnesium soap and 1-3 parts by weight of dodecenylsuccinic acid into the reaction kettle, and continuing stirring so as to completely dissolve petroleum calcium sulfonate and lanolin magnesium soap; and adding 0.5-1 part by weight of triazole into 5-10 parts by weight of absolute ethyl alcohol, dissolving triazole in absolute ethyl alcohol at the temperature of 50-60 DEG C to obtain solute, adding the solute into the reaction kettle when the reaction kettle is cooled to 50 DEG C or below, then adding 1-7 parts by weight of petroleum ether and 50-70 parts by weight of refined kerosene into the reaction kettle, stirring to be uniform, and filtering when the reaction kettle is cooled to room temperature, so that the dehydrated anti-rust oil is prepared. The dehydrated anti-rust oil prepared by adopting the preparation method provided by the invention contains no hazardous substances such as barium, aromatic hydrocarbon and sulphur, produces no irritating odour, does not cause emulsification or sediment precipitation after long-term use, has good rust resistance and is environment-friendly and safe.

The invention belongs to the field of building waterproof materials, and provides asphalt waterproofing paint for roads and bridges and a preparation method thereof. The asphalt waterproofing paint comprises the following raw materials by weight: 28-36 parts of asphalt, 0.2-0.5 part of cationic emulsifier, 4-5 parts of polymer latex, 1-3 parts of a thickening agent, 2-4 parts of superfine wollastonite powder and 20-35 parts of water; and the thickening agent is an association type thickener prepared by polymerization of hydroxyethyl cellulose and polyoxyethylene. The asphalt waterproofing paint has the characteristics of high bonding strength, thick coating construction, fast drying, good storage stability, low temperature and excellent weather resistance.

A process of synthesizing praziquantel is provided. According to the process, beta-phenylethylamine and dichloromethane are added into a reactor and subjected to an acylation reaction; the mixture is stirred and cooled and the acylation reaction temperature is lowered to 0-35 DEG C or below; chloroacetyl chloride and liquid caustic soda are added dropwise under temperature control of the reaction solution; the pH value of the acylation reaction solution is controlled to be 6-12 during a dropwise adding procedure; and after the dropwise adding procedure is finished, the temperature is maintained, and the mixture is stirred and layered. A one-pot method is adopted by the process, the cost of the process is low, operation methods are simple and controllable, environment protection safety is good and product quality is stable.

The invention provides a deodorization sterilization composition for a cat. The composition comprises a deodorant and a sterilization component. The deodorant comprises 1-3% of soyethyl morpholinium ethosulfate; the sterilization component comprises, part by weight, 0.01-0.2% of mint oil, 0.005-0.1% of sage essential oil, 0.005-0.1% of geranium essential oil, 0.05-2% of a humulus lupulus extract,0.05-2% of a pelargonium graveolens extract, 0.05-2% of a cactus extract, 0.05-2% of a chamomilla recutita flower extract and 0.08-0.15% of benzalkonium chloride. According to the prepared deodorization sterilization composition adopting a plant formula for the cat, the pH of the composition system is 6.0-8.0 and is close to the pH of the body surface environment of the pet, and the deodorizationsterilization composition is suitable for being sprayed to the defecation place of the cat, a cat litter box, an appliance, garments and a playing environment; stink and other bad odors generated after defecation of the cat are reduced, the rate of the composition for killing escherichia coli and staphylococcus aureus after 90 seconds is larger than 99.999%, reproduction and spreading of bacteriaafter defecation of the cat are inhibited, the stink generated by organic matter of bacterium metabolism in the living environment of the cat is reduced, and the deodorization sterilization effect isachieved.

The invention discloses a fluoride-free waterproof oil-proof food-grade coating and a preparation method thereof. The coating is prepared from the following components, by mass: 3%-5% of modified polyvinyl alcohol, 5%-15% of palm wax, 1.5%-6.5% of an emulsifier, 25%-35% of compound water-based polymer resin, 0.5%-1.5% of glycerinum and 37%-65% of deionized water. The coating has good waterproof and oil-proof characteristics; after being applied to paper, the waterproof oil-proof coating has ideal waterproof oil-proof performance; the defect of poor oil-proof and water-proof performance of a paper material is overcome; the coating can replace coated paper, especially replace a fluorine-containing polymer in a waterproof and oil-proof agent, is a fluorine-free copolymer, and is environmentally friendly and easy to naturally degrade, thereby solving problems that the fluorine-containing coating is harmful to health, and the coated paper is difficult to recover and influences the environment; meanwhile, a problem of potential food safety hazards is solved. The coating is beneficial to popularization and application.

The invention discloses biomass methanol diesel oil. The biomass methanol diesel oil comprises the following components by weight: 100 parts of diesel oil, 40-60 parts of fatty acid methyl ester, 15-40 parts of methanol, and 2-20 parts of composite cosolvent. The biomass methanol diesel oil comprises the following steps: adding 100 parts by weight of diesel oil in a reactor with a stirring apparatus, a heating device, a thermometer and a constant pressure funnel, at 25-500 DEG C, adding 2-20 parts by weight of composite cosolvent, stirring the solution uniformly, gradually adding 40-60 parts by weight of fatty acid methyl ester and 15-40 parts of methanol based in the constant pressure funnel, stirring the mixture uniformly to form the homogeneous biomass methanol diesel oil which is thermodynamically stable. The biomass methanol diesel oil is wide in resource, relatively cheap, high in point of flammability, high in cetane number, and good in water resistance, environmental protection, high safety and renewability, and can be used to directly substitute the common diesel oil in fields.

The invention relates to a slag-forming constituent in casting lead and lead-base alloy, which comprises 35-70wt% of CaF2, 3-5wt% of Na3AlF6, 3-8wt% of KCl, 8-10wt% of NaCl, 2-5wt% of ZnCl2, 20-50wt% of C powder and 3-5wt% of NH4Cl. The invention makes use of the principle that inorganic salt can improve interfacial force and boundary tension between lead fondant and oxidate so as to de-slag in casting and using of lead-base product, improve quality of casting and using, ensure slag to carry on powder, and recovery metal efficiently. The invention the properties of simple preparation, low input of apparatus and capital and extensive usages such as lead ingot casting, lead-base alloy product casting and lead-base product later usage.

An oil and smoke filterand the production method is provided, which is that: moistening the caking agent used on glass fiber by adding, then covering the flame retardant and the caking agent on the glass fiber evenly, a glass fiber filtering net of multiple layers structure comprising a surface layer and a core layer is formed by multiple layers laminating, then hardening and curing to mould a glass fiber filtering net with multiple fluffy layers. The invention ensures lower resistance, good flame retardant and environment-protected safety performance in use, which has higher oil and smoke collecting rate. The invention solves the standing high temperature and humidity resistance performance of the filter. The invention has convenient use and more uses, which is suitable on process gas, oil and smoke discharging equipment, home-use and industrial air adjustment equipment, air freshener, scavenger fan, pumping oil and smoke equipment and so on.

The invention provides a process for synthesizing levopraziquantel. The process is implemented in technical steps as follows: (1) N-(2-phenyl) ethyl-2-[(acetaldehyde acetal) amino] acetamide (compound 1) is subjected to cyclization under the condition of an acid catalyst, and 1,2,3,6,7,11 beta-hexahydro-4H-pyrazino[2,1-alpha] isoquinoline-4-one (compound 2) is generated; (2) L-tartaric acid as a resolution reagent is added to a solvent of the compound 2 generated in the step (1), the mixture is heated and stirred until the mixture is completely dissolved, crystallization is performed at the reduced temperature, a levorotatory compound 2 tartrate crude product (compound 3) is obtained, and the crude product is further heated, beat, cooled, crystalized and purified in the solvent. The process cost is low, the reaction condition is mild, the operation method is simple and controllable, use of a large quantity of toxic reagents is avoided, the product is environment-friendly, good in safety and stable in quality and the product prepared with the synthesis process of levopraziquantel meets medical requirements.

The present invention provides a disinfecting deodorant for pet cats and dogs. The disinfecting deodorant comprises the following materials in parts by weight: 0.005-0.1% of lemon fruit peel oil, 0.005-0.1% of lavender oil, 0.1-2% of a pseudo-ginseng root extract, 0.1-2% of a radix stemona tuberosae extract, 0.1-2% of a cactus extract, 0.1-2% of a mentha piperita leaf extract, 0.15-0.20% of chloroalkyl dimethyl benzylamine and 1-3% of PEG-7 olive oil sodium carboxylate. The prepared disinfecting deodorant for the pet cats and dogs overcomes defects that existing deodorant products for the petsare excessively high in essence concentration, contain alcohol, are low in deodorization rate, etc. The provided deodorant product is free of artificially synthetic essences and can effectively eliminate foul odor of the pets after urination and defecation. The disinfectant deodorant has killing rates on escherichia coli and staphylococcus aureus for 3 min at both larger than 99.999%, inhibits proliferation and spread of bacteria in urination and defecation places of the pets, is free of alcohol and other easily volatile solvents, can be licked, does not irritate respiratory tract, is free ofeffects on the floor, carpets and other materials, and has good environmental protection safety.

The invention discloses a jack without vibratory noise. A radial through hole arranged in an upper end section of a pump core and a coaxial axle hole of a flexible vibration-isolated cap are communicated to form a first hinge pin hole. A first hinge pin sequentially passes through a second hinge pin hole, the first hinge pin hole and a third hinge pin hole. The second hinge pin hole and the third hinge pin hole are coaxial. The holes are in clearance fit. A first baffle ring groove arranged at the end head of the first hinge pin is locked and matched with a first snap spring hole of a first bidirectional snap spring. The outer cylindrical surface of the pump core and the hole of a pump cylinder are in clearance fit by the axle holes. A convex positioning section of the front end of an elastic cushion block is embedded into an inner baffle of a connecting rod of a pressing connecting rod, and the rear circular arc camber of the elastic cushion block is attached to the outer cylindrical surface of the pump cylinder. The second hinge pin sequentially passes through a fourth hinge pin hole, a hinge pin hole on a base of the jack and a fifth hinge pin hole. The fourth hinge pin hole and the fifth hinge pin hole are coaxial and in clearance fit by the axle holes. According to the technology provided by the invention, a noise source of a lorry-mounted oil jack can be eliminated well.

The invention discloses a comprehensive analysis device for a combustion and fire extinguishing process of a cup combustor, the device comprises a cup combustor main body, an infrared gas analyzer, agas collecting hood, a flue gas analyzer, an exhaust pipe, a high-pressure gas storage cylinder, a gas bottle, a draught fan, a quartz glass cover, a thermocouple, a data collection module, a computer, a high-speed camera and the like, qualitative and quantitative analysis of combustion products of fuel and action products of a fire extinguishing agent and flame in an experiment process of the cupcombustor can be realized, the combustion and extinguishing mechanisms of combustibles are studied, toxic and harmful substances produced by the experiment can be effectively isolated, the structureis safe and reliable, the measurement result is accurate, and environmental protection is realized.

The invention discloses a water-soluble strippable transfer ink which is prepared from the following raw materials in mass percent: 25-35% of natural rosin, 8-12% of non-toxic organic pigment, 20-35% of water, 8-12% of diethanolamine, 10-15% of EVA emulsion, 3-6% of PE wax powder, 1-3% of water-based flatting agent and 0.1-1% of water-based defoaming agent. The preparation method comprises the following steps: heating and insulating the natural rosin, the water and the diethanolamine to reach water solubility after high-temperature amination; taking and putting the water solution of the natural rosin and the non-toxic organic pigment into a dispersion kettle, and fully stirring; then, transferring the mixture into a sand mill for grinding until the measured fineness is lower than 20mu m; and filtering the ground material, and then, uniformly stirring and dispersing the filtered material, the EVA emulsion, the PE wax powder, the water-based flatting agent and the water-based defoaming agent to obtain the required ink. The ink has the advantages of environmental protection, good safety and excellent printability and is suitable for different high-speed or low-speed mechanical printing machines.

The invention relates to TiO2-doped infrared-transmitting aluminate glass ceramic and a preparation method thereof. The TiO2-doped infrared-transmitting aluminate glass ceramic is prepared from, by weight, 35%-50% of Al2O3, 30%-40% of CaO, 10%-20% of R, 7%-15% of M and 3%-6% of TiO2, wherein R is one or more of BaO, SrO and MgO, and M is Na2O and/or K2O. The preparation method includes the steps that a vacuum melting method is adopted to prepare infrared-transmitting aluminate matrix glass, and then the glass is subjected to specific heat treatment to obtain the TiO2-doped infrared-transmitting aluminate glass ceramic. The TiO2-doped infrared-transmitting aluminate glass ceramic has excellent spectrum transmittance in a visible region and a near-infrared and middle-infrared band; the TiO2-doped infrared-transmitting aluminate glass ceramic has excellent mechanical performance, and experimental results show that the hardness of the glass is significantly improved after the glass is subjected to heat treatment; the TiO2-doped infrared-transmitting aluminate glass ceramic is suitable for manufacturing spherical covers and other infrared windows in special complex shapes; the TiO2-doped infrared-transmitting aluminate glass ceramic does not contain precious metal such as rare earth, germanium and gallium, and therefore the raw material cost is low; toxic components such as fluorine, chlorine, sulphur and lead are not involved in the preparation process, and therefore environmental safety is good.

The invention belongs to the technical field of functional materials, and particularly relates to a fluoride-free treating agent, oil-proof paper and a food packaging material. The fluoride-free treating agent can be applied to packaging materials in a coating and spraying mode, and the problem that in the prior art, plastic film packaging paper is not recycled, so that the film stays in nature for a long time, and white pollution is caused is solved; and meanwhile, the dosage of the fluoride-free treatment agent is far lower than that of film treatment, so that the cost is saved, and the benefit is improved. The fluoride-free treatment agent disclosed by the invention is a water-based emulsion used in a food packaging material, not only can meet the requirements of water and oil resistance of food, but also has certain tolerance to high temperature, and does not have obvious yellowing and discoloring phenomena when being used at 180 DEG C.

The invention relates to macromolecular antibacterial polyurethane memory foam and a preparation method thereof, wherein the macromolecular antibacterial polyurethane memory foam is prepared by taking a polyguanidine modified isocyanate prepolymer, polyether polyol I, polyether polyol II, a foam stabilizer and a compound amine catalyst as raw materials; in the polyguanidine modified isocyanate prepolymer, an antibacterial group is permanently grafted on a polyurethane chain segment, so that the prepared macromolecular antibacterial polyurethane memory foam is good in environmental protection safety and has lasting antibacterial performance; and the problems that in the prior art, due to migration of an antibacterial agent, the antibacterial performance of additional blending type antibacterial polyurethane is reduced, and pollution is caused are effectively solved. Data show that the antibacterial rate of the macromolecular antibacterial polyurethane memory foam detected according to the national standard GB/T20944 is up to 99%, and the antibacterial rate is up to 98.5% after the macromolecular antibacterial polyurethane memory foam is washed for 50 times with water.