39results about How to "Industrialization is less difficult" patented technology

The invention discloses a technology and equipment for preparing a C/C (carbon/carbon) composite. The technology for rapidly preparing the C/C composite comprises the following steps that (1) a preform is pretreated; (2) tools are prepared; (3) furnace loading is conducted; (4) temperature gradient differential CVI (chemical vapor infiltration) treatment is conducted; (5) heating of a heating element and input of mixed gas are stopped sequentially after 100-300h; and (6) a cover plate, the outer tool, the preform and the inner tool are taken out to form the C/C composite with density of 1.4-1.7g/cm<3>. The invention further discloses the equipment for preparing the C/C composite. According to the technology and the equipment, the operation is simple; the densification period is short; the industrial difficulty is small; the densification rate is high; ineffective reaction can be avoided; the carbon yield can be increased; and pollution of a vacuum system can be prevented.

The invention relates to the technical field of hot stamping forming, in particular to a forming method for achieving different-area performance stable transition of a high-strength steel hot-forming part. The forming method utilizes induction heating to control electromagnetic fields and vortex fields of different areas, accordingly controls the heating temperatures in different areas of a plate and obtains different strengths after stamping is completed. The heating temperature ranges from 850 DEG C to 1000 DEG C and is kept for 0-10 min, a steel plate is heated to be in a complete austenitizing state, and the strength of the hot-formed steel plate is higher than1500 MPa. The heating temperature ranges from 25 DEG C to 850 DEG C and is kept for 0-10 min, the steel plate is heated to be in an incomplete austenitizing state, and the strength of the hot-formed steel plate ranges from 500 MPa to 900 MPa. The shape of an induction heating coil, the distance between the coil and the plate, current and frequency are designed according to the demand for different area strengths of the part, and the part has best collision performance matched with strength and plasticity after being subjected to hot stamping forming.

The invention relates to a method for preparing olefin, aromatic hydrocarbon and hydrogen by steam catalytic cracking of methane by utilizing a quartz catalytic reactor. The process realizes high-efficiency conversion of methane, and generation of gas-phase polycyclic aromatic hydrocarbon and secondary carbon deposit under steam pressing, steam hardly participates in the reaction, only a trace amount of CO is generated, the steam improves the heat transfer efficiency, and the catalyst stability is high. The conversion rate of methane is 20-70%; the olefin selectivity is 85 to 95 percent; the benzene selectivity is 4.5 to 13 percent; the selectivity of CO is 0.5-2%; carbon deposition is zero. The method has the characteristics of long service lifetime of the catalyst, good oxidation reduction and hydrothermal stability of the catalyst at high temperature, high methane conversion rate and product selectivity, zero carbon deposition, no need of amplification of the catalyst, low industrialization difficulty, easiness in separation of the product, good process repeatability, safety and reliability in operation and the like, and has a wide industrial application prospect.

The invention provides a self-adsorption flexible battery and a preparation method thereof. The preparation method comprises the following steps: grafting cyclodextrin, as a host, to a gel electrolytepolymer monomer, to form a host molecule carrying polymer monomer matrix; performing in-situ polymerization reaction of the host molecule carrying polymer monomer matrix and the un-grafted gel electrolyte polymer monomer, to generate a host molecule doped gel electrolyte; grafting adamantane or ferrocene, as an object, to an adhesive polymer monomer, to form an object molecule carrying polymer monomer matrix; performing polymerization reaction of the prepared object molecule carrying polymer monomer matrix and the un-grafted adhesive polymer monomer, to generate an object molecule doped adhesive; adding the object molecule doped adhesive into positive and negative electrodes, and encapsulating with the host molecule doped gel electrolyte, to obtain a self-adsorption sandwich flexible battery. Compared with existing flexible battery, the flexible battery has the advantages that the service life of the battery is prolonged while the flexibility is improved, and the shortcomings of existing flexible battery technology are overcome.

The invention discloses a special additive for wear-resistant hydraulic oil with excellent thermal stability and a preparation method thereof. The special additive for the wear-resistant hydraulic oilwith excellent thermal stability is zinc di-dodecyl dithiophosphate, and the zinc di-dodecyl dithiophosphate is added in the wear-resistant hydraulic oil to improve the thermal stability of the wear-resistant hydraulic oil. The preparation method comprises the following steps: adding phosphorus pentasulfide in N-dodecanol time by time and reacting to generate thiophosphoric acids; and adding zinchydroxide in the thiophosphoric acids time by time and reacting to generate the zinc di-dodecyl dithiophosphate. The special additive for the wear-resistant hydraulic oil with excellent thermal stability and the preparation method thereof disclosed by the invention have the benefits that the zinc di-dodecyl dithiophosphate is used on the hydraulic oil to obviously improve the thermal stability ofthe hydraulic oil; and the production process is simpler, the industrialization difficulty is low, the application of a catalyst is also eliminated, the later waste treatment is reduced, and the production cost is obviously reduced.

The invention relates to a preparation method of a catalyst-silicon carbide reactor and a method for catalyzing methane to directly synthesize ethylene under an oxygen-free condition. The catalyst-silicon carbide reactor is prepared on basis of a novel prepared silicon carbide material, and good thermal conductivity and chemical reaction inert characteristic of the material are utilized. Based onthe catalyst-silicon carbide reactor and reaction conditions, zero carbon deposition and high-selectivity synthesis of ethylene are realized. According to the invention, the conversion rate of methaneis 10-70%, the selectivity of olefin is 40-95%, the selectivity of propylene is 5-15%, the selectivity of aromatic hydrocarbon is 0-40%, and zero carbon deposition is achieved. The method provided bythe invention has the characteristics of long catalyst service life (1000 hours), good stability at a high temperature (1700 DEG C), high methane conversion rate and product selectivity, zero carbondeposition, low industrial difficulty, good process repeatability, safe and reliable operation and the like, and has a wide industrial application prospect.

The invention belongs to the technical field of chemical synthesis, and concretely relates to a chemical synthesis method of 3-chloro-1-propanol. 1,3-propylene glycol reacts with hydrochloric acid with benzenesulfonic acid as a catalyst to synthesize 3-chloro-1-propanol. The method comprises the following steps: 1,3-propylene glycol, a part of hydrochloric acid and benzenesulfonic acid are added into a reaction kettle and are reacted, the remaining hydrochloric acid is added into the reaction kettle, the obtained mixture is continuously reacted until the sampling analysis result shows that thesample is qualified, toluene is added, a heating reflux water-carrying reaction is carried out, the kettle is cooled to room temperature after the water-carrying reaction is completed, an oil phase in the kettle is neutralized to be neutral, the oil phase is pumped into a rectifying kettle, and is rectified until the sampling analysis result shows that the sample is qualified, and the finished product is separated out. The method which adopts the benzenesulfonic acid as the catalyst has the advantages of increase of the reaction efficiency, prevention of excessive chlorination, no generationof high-toxicity and high-pollution three wastes in the reaction, recyclability of byproducts, realization of the comprehensive yield of 95% or above, high conversion rate, high operability, low riskand low industrialization difficulty.

The invention relates to a preparation method, in particular to a preparation method for preparing aliphatic crown ether from ethylene oxide through oligomerization. The method comprises the following steps: monomer solution preparation, catalyst solution preparation, polymerization reaction, reaction termination and product treatment. The synthesis method provided by the invention has the advantages of low raw material cost, continuous synthesis, easy product separation and the like, and is especially suitable for large-scale continuous production.

The invention discloses a preparation method of a phosphorus-nitrogen type ash-free extreme pressure anti-wear agent and extreme pressure anti-wear lubricating oil. The preparation method comprises the following steps: respectively diluting phosphorus oxychloride and an alcohol compound in a molar ratio of 1:1.2-1:2.2 by using normal hexane, dropwise adding into a reaction container, introducing nitrogen as a protective gas, and removing generated hydrogen chloride; and heating to 30-50 DEG C after dropwise adding, keeping the temperature for 0.5-2 hours to obtain an intermediate alkoxy phosphoryl chloride, adding an organic amine compound in a molar ratio of the organic amine compound to the phosphorus oxychloride of (0.8:1)-(1.8:1), and keeping at the temperature of 50-80 DEG C for 1-3 hours to obtain phosphamide ester serving as an anti-wear agent. According to the technical scheme, the prepared extreme pressure anti-wear agent has excellent extreme pressure anti-wear performance and good demulsibility, does not contain sulfur, is simple in preparation process, low in industrialization difficulty and free of generation of waste pollution byproducts, the yield can reach 99% or above, and the production cost is reduced.