33results about How to "Good friendliness" patented technology

The present disclosure relates to a work machine, in particular in the form of a dump truck or of a truck, having a diesel electric traction drive, comprising at least one internal combustion engine, at least one alternator, at least one set of power electronics as well as at least one electric motor, wherein the power electronics are arranged at least partially in the region of a driven driving axle of the work machine.

The invention discloses a synthesizing method for phenylacetic acid. The synthesizing method comprises the following steps: enabling benzene and glycolide or oligoglycolic acid in the mass ratio of (25 to 5) to 1 to react for 1 to 24 hours at the temperature of 35 to 80 DEG C under the catalysis of Lewis acid with the amount-of-substance of 1.0 to 1.3 times that of oxyacetyl; performing quenchingreaction by using water, adding an inorganic strong acid for acidifying, performing oil-water phase stratifying, removing a solvent by distilling, and drying to obtain the phenylacetic acid product. According to the synthesizing method, highly toxic chemicals, such as hydrogen cyanide and carbon monoxide, are not selected and used so as to eliminate product safety concerns caused by micro-raw material residue or trace raw material residue; extremely high reactive pressure conditions are also not adopted, so that high-pressure reaction equipment is not required to be used; therefore, the safetyin a production process is improved; meanwhile, the raw materials used in the synthesizing method is high in biodegradability, green and safe; and synthesized reaction atoms have high economical efficiency and good economical efficiency.

The invention relates to a papermaking method for inhibiting plant fiber decay. The method comprises the steps of pulping and refining wood pulp boards to obtain slurry A; preparing fiber decay inhibitor suspension in a preparation tank; mixing slurry A with the prepared The suspension is stirred at a high speed in the mixing tank to obtain a uniformly mixed slurry B; after washing the slurry B, the slurry C is obtained; the slurry C is screened and purified and enters the forebay tank to obtain the slurry D, and then passes through a white water bucket, washed Slurry pump, enter the pressure screen, remove fiber bundles and impurities in the pressure screen to obtain slurry E, add CPAM retention aid to obtain slurry F; slurry F enters the headbox for slurry distribution, and dehydrates in the wire part to form wet paper After pressing, pre-drying, surface sizing, and post-drying; the master roll is formed in the roll paper part, and then rewinded and cut into products of required specifications. The method of the invention has the advantages of simple production process, the suppression of fiber decay can be realized from the source and the suppression effect is long-lasting, and the additives added are good in environmental friendliness and the like.

The invention relates to a non-noble metal catalyst and application thereof in catalysis of high-selectivity furfural hydrogenation to synthesize 1,2-pentanediol. Copper (I or II) salts and copper (I) oxides, nickel (II) salts and aluminum (III) salts and / or oxides thereof are taken as raw materials, glucose or sodium sulfite or sodium thiosulfate is taken as a reducing agent, the raw materials and the reducing agent are subjected to a co-precipitation reaction with sodium hydroxide and sodium carbonate, and precipitates are roasted to obtain the Cu (I)-Ni (II)-Al (III) ternary inorganic composite catalyst. The invention further discloses a method for synthesizing 1,2-pentanediol by selectively catalyzing furfural hydrogenation and reduction through the ternary composite catalyst. The catalyst is a non-noble metal inorganic compound and is low in raw material cost, simple in preparation process and low in cost; the raw material for synthesizing 1,2-pentanediol is furfural which comes from wood fiber waste materials, belongs to a natural product derivative and is low in cost, easy to obtain, sustainable and beneficial for high-added-value development and utilization of a large amount of waste wood fiber; the obtained product is high in selectivity and easy to separate and purify.

The invention discloses an organic solid waste pretreatment system and process, and a corresponding organic solid waste continuous hydrothermal treatment system and process, including a water weight sorting-grinding device and a ball mill; the water weight sorting-grinding device includes a sorting The sorting chamber and the second-stage crushing unit can realize the separation of light and heavy materials through the sorting chamber. The second-stage crushing unit crushes the light materials to obtain primary slurry. The ball mill receives the primary slurry and performs ball milling to produce The slurry containing impurities is obtained, in which the heavy materials separated by the sorting chamber can enter the ball mill and be used as abrasives. The organic solid waste pretreatment system of the present invention has a simple and reasonable structure, facilitates the separation of light and heavy materials and the utilization of heavy material waste, and refines, homogenizes and fluidizes organic solid waste, and can realize synergy, high efficiency and continuous water treatment of organic solid waste Heat treatment, and effectively prevent the clogging of continuous hydrothermal process, etc., fully recover the heat energy of the process, and the products can be used as resources, obtaining significant environmental protection and economic benefits.

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.

A 3D printing manufacturing method of a three-dimensional structure electronic device. First, according to the performance requirements of the workpiece to be formed, the spatial distribution of the circuit in the three-dimensional structure electronic device and the geometric size of the matrix structure are designed, a three-dimensional CAD model is established, and the model is processed according to the processing direction. Layered processing, to obtain the material distribution of each layer section, write the relative motion program of the print head integrated device and the working platform, and then select the wire printing material and matrix structure printing material that meet the performance requirements, and then print the substrate, on the working platform Form the matrix structure, then switch the print head, print the wire, the movement mechanism drives the working platform to drop a layer thickness, repeat the printing process of printing the base material and printing wire, until the entire matrix structure and wire are printed, and the structural electronics are obtained. The invention realizes The synchronous printing of wires and base insulating medium can realize arbitrary arrangement in three-dimensional space.

A special additive for steam curing of concrete in winter and a production method thereof. The additive is characterized by comprising the following raw materials by weight: 10%-15% of aluminum sulfate, 0.2%-0.5% of citric acid, 4%-7% of sodium nitrate, 0.1%-0.2% of methyl cellulose, 25%-30% of a poly carboxylic acid water reducing agent with solid content of 20% and 47.3%-60.7% of water. The preparation method is as below: first adding water in a feed mixer; then adding aluminum sulfate, citric acid and sodium nitrate according to the proportion into the feed mixer, and stirring for 20-30 min to practically dissolve solid particles; then adding the methyl cellulose and the poly carboxylic acid water reducing agent according to the proportion into the feed mixer, and stirring for 20-30 min until to practically dissolve solid particles, so as to obtain a colorless transparent liquid product. The invention has the advantage that aiming at the problems of easy cracking and reduced strength and durability in steam curing of concrete in winter in severe cold areas, a multiple-ingredient compounding way is employed, and the ratio of raw materials and dosage can be adjusted according to the change of environmental temperature, so as to ensure the normal production of steam curing of concrete under the minimum temperature of below 0 DEG C and to ensure strength and durability of the concrete. The invention has good environment-friendliness.