193results about How to "Environmental advantages are obvious" patented technology

The invention discloses a low-temperature carbonization apparatus and method for oil sand, oil sludge, oil shale and biomass. The apparatus comprises a delivery apparatus, a storage bin, a metering apparatus, a drying furnace and a surge bin. The method comprises the following steps: drying, preheating, carbonizing, and cooling. The core of the invention is an external heating type rotary carbonization furnace which realizes the pyrolysis of oil sand, oil shale, oil sludge (oil sludge on the ground, oil sludge at the bottom of a tank and oil-containing sludge from oil refinery) and biomass, and the product is high in purity and low in loss. The invention effectively solves the problems of solid materials such as adhesion, wall accretion and the like in the pyrolysis process by material returning. The technology provided by the invention is simple in process and reliable and stable in operation, and has obvious advantages in the treatment of small particle materials such as oil shale, oil sand, oil sludge (oil sludge on the ground, oil sludge at the bottom of a tank and oil-containing sludge from oil refinery), biomass and the like.

The invention provides a preparation method of a hydrophobic polymer film material. The material comprises the following components in parts by weight: 100 parts of a polymer; 0.5-25 parts of micro-nano particles; and 0.5-30 parts of other auxiliary agents. The preparation step comprises: melt-mixing the polymer, the micro-nano particles and the other auxiliary agents, performing extrusion, calendering or tape casting to form a film blank, and then performing stretching; and forming micro-nano protrusions and cavity rough surface structures after stretching to obtain the hydrophobic polymer film material. The water contact angle of the material is 120 degrees or more, and the rolling angle is 15 degrees or less.

The invention provides a refrigerant composition. The refrigerant composition contains the following components, in percentages by mass: 1%-98% of 1,1,2-trifluoroethylene (R1123), 1%-88% of difluoromethane (R32) and 1%-48% of trifluoroiodomethane (R13I1) or 1%-12% of 1,1,1,2,2-pentafluoroethane (R125). The refrigerant composition has a GWP of 600 or less, an ODP of 0, and obvious environment-friendly advantages; and in addition, the refrigerant composition has good thermal performance and is used for the household air conditioning unit, the capacity and energy efficiency of the household air conditioning unit using the refrigerant composition are equivalent to those of a household air conditioner using an R410A refrigerant, and the can refrigerant composition replace the R410A working medium without any change of the household air conditioning system.

The invention belongs to the technical field of papermaking, relates to a production method for craft paper, and aims to solve the problem of difficulty in the production of feather-weight, strong-strength and high-whiteness craft paper under the condition of not using wood pulp. The production method for the craft paper comprises steps of a MOW pretreatment step for forming surface pulp and lining pulp, an OCC pretreatment step for forming core pulp and prime pulp, and a step for subsequently treating the surface pulp, the lining pulp, the core pulp and the prime pulp, and is characterized in that the MOW pretreatment step comprises the following steps: a, simultaneously performing pulping and biological enzyme deinking on MOW, and b, performing heat dispersion on MOW, wherein the step a comprises a step of adding 1,600 to 1,800 IU/ml cellulase, Na2SiO3 and NaOH into MOW pulp at the mass concentration of 10 to 15 percent for pulping under the condition of 40 to 50 DEG C, wherein the mass concentration of the cellulase, the Na2SiO3 and the NaOH is 0.01 to 0.05 percent, 0.5 to 1.0 percent and 0.5 to 1.0 percent respectively, and the pulping time is 10 to 20 min. Due to the adoption of the technical scheme, the method can effectively solve the technical problem.

The invention discloses a preparation method of copper chloride hydroxide. The method comprises the following steps: adding copper hydroxide slurry in copper chloride solution according to a ratio of 2.5-3.5:1, reacting under the condition that the temperature is 80-160 DEG C, the pH value is 4-9 and the pressure is 0-600kPa, obtaining the reaction product after the reaction; and rinsing, centrifuging and drying the reaction product to obtain copper chloride hydroxide. The method of the invention has simple and safe operation, less waste discharge, lower production cost, more complete resource utilization and less environmental pollution.

The invention discloses a biochar pulp prepared from garbage leachate serving as a raw material and a preparation process thereof, and aims to provide the biochar pulp prepared from the garbage leachate serving as the raw material and the preparation process thereof, which have the advantages of the combination of energy saving and emission reduction and environmental management and low cost. Thepreparation process comprises the following steps of: mixing biochar, the garbage leachate, methanol, high-temperature sand and additives serving as raw materials; and crushing, homogenizing and filtering the mixed raw materials to prepare the biochar pulp. The biochar pulp is used for replacing fuel oil so as to effectively save energy and reduce fuel cost, plays a good part in managing urban environment, and fulfills the aims of promoting economic and environmental health and sustainable development. The biochar can be widely applied in the fields of substitute oil firing such as industrialboilers, power station boilers, industrial furnaces and the fields of urban environment management and the like.

The invention provides a bamboo latticed shell hollow sphere connecting joint welded with steel insertion sheets and an installing method. The bamboo latticed shell hollow sphere connecting joint comprises M steel insertion sheets, M bamboo rod pieces, M or M-1 reinforced steel sheets, a hollow sphere and 2M bolts, wherein a circular-arc gap is reserved in one end of each steel insertion sheet; a bolt hole A is reserved in the other end of each steel insertion sheet; one end of the circular-arc gap reserved in each steel insertion sheet is fixed together with the hollow sphere by welding; a groove and a bolt hole B are reserved in the end part of the each rod bamboo rod piece; one end, where the bolt hole is reserved, of each steel insertion sheet is inserted into the groove reserved in each bamboo rod piece; the bolt hole A reserved in each steel insertion sheet is aligned with the bolt hole B reserved in each bamboo rod piece; each bolt hole A and bolt hole B are fixed by using two bolts; the reinforced steel sheets are welded on the steel insertion sheets between the bamboo rod pieces and the hollow sphere. The bamboo latticed shell hollow sphere connecting joint has the advantages of simple structure, easiness in positioning and installing, clear force transmission, high integrity, easiness in maintaining and environmental friendliness; bamboo belonging to an environment-friendly renewable resource is taken as the rod piece material of the latticed shell connecting joint, so that an outstanding environmental protection advantage is achieved.

The invention discloses a mechanical auxiliary overcooling CO2 cross-critical heat pump heating system. The system comprises a mechanical auxiliary overcooling heat pump system and a CO2 heat pump system; backwater of a heating radiator flows into a condenser to be heated through a three-way valve and then flows into a mixing tank; a refrigerant flowing out of a cooling evaporator flows into the condenser to be cooled through an auxiliary circulation compressor, and then flows into the cooling evaporator through an auxiliary circulation throttling valve; CO2 heat flows out of an evaporator, passes through a compressor then enters a gas cooler, then enters a pipeline which is provided with the evaporator and a throttling valve to enter the evaporator; and the backwater of the heating radiator flows into the gas cooler to be heated through the three-way valve and then flows into the mixing tank, and the mixing tank is connected with an water inlet of the heating radiator through a pipeline. According to the system, CO2 at an outlet of the gas cooler of a CO2 system is overcooled through a mechanical overcooling system, so that the temperature of CO2 before the COW2 entering the throttling valve is reduced, throttling loss is reduced, and therefore the operation high-pressure of the CO2 is reduced, and efficient operation of the CO2 heat pump system is ensured.

The invention provides quick-drying type water-borne mental corrosive-resistant paint and a preparation method thereof. The quick-drying type water-borne mental corrosive-resistant paint is prepared from an ingredient A and an ingredient B, wherein the ingredient A is prepared from water-borne acrylic resin emulsion and water-borne modified fatty amine curing agent blended resin; the ingredient B is epoxy resin. A water-borne epoxy technology and a water-borne acrylic technology are creatively compounded and applied, so that a product has a long activation period and fast drying speed; the construction is convenient; healthy and environment-friendly effects are achieved; a paint film has the performance advantages such as high hardness, high impact resistance and excellent adhesive force; the quick-drying type water-borne mental corrosive-resistant paint can be widely applied to decoration and protection of metal substrates such as galvanized plates, tinplate, stainless steel and aluminum-plastic plates.

The invention discloses an organic phosphoric acid compound, a synthesis method of the compound and application of the compound as a chalcopyrite collector. The synthesis method of the organic phosphoric acid compound comprises the steps that an organic carboxylic acid compound and phosphorous acid are subjected to a condensation reaction under the function of phosphorus pentoxide, and a product of the condensation reaction is hydrolyzed by water vapor, separated and purified to obtain the compound. The organic phosphoric acid compound is used for the flotation of chalcopyrite, the selectivityof the compound is high, the agent use amount is small, the cost is low, flotation indexes are stable, and efficient flotation separation can be carried out on chalcopyrite and pyrite.

The invention provides an anti-impact high-weather-resistant water-based industrial paint and a preparation method thereof. The anti-impact high-weather-resistant water-based industrial paint uses main body resin polyurethane modified acrylate emulsion and auxiliary resin waterborne polyurethane dispersion for proportion and cooperation; nanometer silicon dioxide inorganic ultrafine materials are introduced; pigment and filling materials are graded, and functional environment-friendly antirust pigments are added; novel substrate wetting and shrinkage-proof auxiliary agents and the like are introduced. A coating of the anti-impact high-weather-resistant water-based industrial paint has the advantages of excellent anti-impact performance, weather resistance, anti-corrosion performance, chemical resistance, high hardness, strong attaching force and good anti-scratching performance; in addition, health and environment-friendly performance are realized; the construction is convenient.

The invention discloses a vapor compression assisted undercooling CO2 automotive air conditioning system. The vapor compression assisted undercooling CO2 automotive air conditioning system comprises a non-azeotropic mixture vapor compression assisted refrigerating system and a CO2 transcritical refrigerating system; the non-azeotropic mixture vapor compression assisted refrigerating system is composed of an assisting system compressor, an undercooler, a throttle valve and the condenser which are sequentially connected; the CO2 transcritical refrigerating system is composed of a main circulating compressor, a gas cooler, an undercooler, a throttle valve and an evaporator which are sequentially connected. According to the vapor compression assisted undercooling CO2 automotive air conditioning system, refrigerant at the outlet of the gas cooler is undercooled through assisted circulation, CO2 at the outlet of the gas cooler can be cooled through low-capacity assisted circulation, the cooling process is easy to implement, the temperature of the CO2 can be reduced below ambient temperature, and irreversible loss during a high-pressure CO2 throttling process can be significantly reduced.

The invention discloses a method for preparing rod-like boehmite powder by a gradient-heating hydrothermal process. The method comprises the following steps: adding a required reaction material into a hydrothermal reaction kettle liner, sealing, raising the reaction temperature to the set initial temperature, and keeping the temperature for some time; gradually heating to the set maximum reaction temperature by a gradient heating process; and keeping at the maximum temperature for some time, naturally cooling to room temperature, carrying out centrifugal separation on the precipitation product at a certain rotation speed, and repeatedly carrying out the after-treatment process composed of water washing, anhydrous ethanol washing, certain-temperature/time electric heating forced air drying and the like, thereby implementing the control on the boehmite powder shape, and successfully preparing the rod-like boehmite powder. The method has the comprehensive advantages of cheap and accessible raw materials, low cost, no need of any additive, simple shape control process, obvious environment-friendly advantage and the like. The prepared rod-like boehmite product has high dispersion uniformity. Thus, the method is an obvious creative synthesis route.

The invention provides a car air-conditioning heat pump system adopting an environment-friendly refrigerant. The car air-conditioning heat pump system further comprises a compressor, an indoor side heat exchanger, a throttle valve and an outdoor side heat exchanger which are sequentially connected to form a closed loop, and the environment-friendly refrigerant adopted by the car air-conditioning heat pump system is prepared from four components in percentage by mass: 4%-8% of the first component, 4%-80% of the second component, 4%-88% of the third component and 4%-88% of the fourth component.GWP of the adopted refrigerant is less than or equal to 150, environment-friendly performance is good, and requirements of environment-friendly regulations in all global regions are met. Thermal performance of the car air-conditioning heat pump system is equivalent to or more superior to a refrigeration system heat pump system using R134a, and thus the car air-conditioning heat pump system adopting the environment-friendly refrigerant is used for replacing a car air-conditioning heat pump system adopting an R134a refrigerant.

The invention provides a 3-hydroxyacetophenone synthesis method. The method includes the steps that 3-hydroxybenzoic acid is subjected to hydroxyl protection through an esterification or etherification reaction, then a chloroformylation reaction and an alkylation reaction are conducted, finally hydrolysis is conducted, and the 3-hydroxyacetophenone is obtained. According to the method, raw materials are cheap, easy to obtain and wide in source, high-temperature and high-pressure operation does not exist, equipment requirement is low, and equipment investment is low; peroxide, heavy nitride and the like do not exist, and high safety is achieved; compared with a nitration-iron powder reduction-diazotization route commonly adopted in the nation, the synthesis method has huge environment-friendly advantages. Besides, according to the method, the amount of wastewater is less than 5% that of an original process, the total route yield is 90%, and the method has huge technological advantages.

The invention discloses a method for leaching valuable metal from cobalt-copper white alloy. The method includes the following steps that (1) the cobalt-copper white alloy is melted into an alloy melt, wherein the cobalt-copper white alloy contains silicon and almost contains no manganese; (2) a Mn-containing material is added into the alloy melt, and meanwhile gas is led in for blowing and slagging; (3) obtained slag is separated from the melt; (4) the melt with the slag separated out is atomized into alloy powder, wherein the mass friction of Mn in the alloy powder is 0.5%-20%; and (5) the alloy powder is subjected to acid leaching, and the valuable metal is recovered. Due to the fact that the Mn-containing material is added and reacts with the silicon in the cobalt-copper white alloy to generate the MnO-SiO2 slag, the silicon removal effect is achieved, and the method has the beneficial effects of being good in silicon removal effect and small in valuable metal loss. Besides, the melting temperature is much lower than the melting point of CaO-(MgO)-SiO2 binary system or ternary system slag in the prior art.

The invention discloses physical-foaming silty lightweight solidified soil. The physical-foaming silty lightweight solidified soil comprises, by mass, 2-3.5% of foam, 80-85% of sludge slurry, 12-16% of inorganic composite curing agents, 0.1-0.2% of viscosity reducer and 0.2-0.5% of early strength agent. The invention further discloses a preparation method of the solidified soil. The lightweight solidified soil has the advantages of light weight, high strength, high stability, easiness in pumping, and the like; sludge is regarded as an important component of the lightweight solidified soil, theresource utilization of the sludge is realized, and the environmental protection advantage is prominent; the lightweight solidified soil can be used as filling soil to be backfilled for highway subgrades and abutments, retaining wall backs, underground projects and pipeline projects; the physical-foaming silty lightweight solidified soil is an environment-friendly building material.