65results about How to "In line with the development concept" patented technology

The invention discloses a method for continuously preparing pseudo ionone of a vitamin A intermediate. The method evenly mixes acetone, citral and catalyst under the continuous operation condition and introduces in a tubular reactor. The reaction mixture is continuously reacted for 1-120 minutes at the reaction temperature of 20-150 DEG C under the pressure of 0-10 MPa; reaction liquid is relieved pressure to enter a flash column; recovered acetone is obtained from the top of the column; tower bottoms are introduced in a layering machine for layering; after being neutralized, oil layers are relieved pressure and recovered to obtain pseudo ionone crude products, and are further distilled in high vacuum and separated out unreacted citral and pseudo ionone competitive products; and the recovered light-component by-products and the unreacted citral are mixed with the recovered acetone to enter the reactor again. The method has the advantages of low catalyst concentration, low corrosion to equipment, short reaction time and fewer side effects; and part by-products can be recycled.

The invention discloses a large-scale piggery dung treatment ecological circulation system which comprises a dung collection unit, a solid-liquid separation unit, an anaerobic fermentation unit, a biogas utilization unit and a biogas slurry utilization unit. The dung collection unit comprises a slurry collection tank, a dung accumulation tank, a settling tank and a slurry storage tank, the solid-liquid separation unit comprises a solid-liquid separator and an organic fertilizer treatment device, the anaerobic fermentation unit is a multistage anaerobic reaction device and comprises a primary anaerobic reaction tank and a secondary anaerobic reaction tank, the biogas utilization unit comprises a biogas cabinet, a biogas purification device and a biogas power generation device, the biogas slurry utilization unit comprises a biogas slurry storage tank, a forestry irrigation device and a farmland irrigation device, and high-temperature oxidation resistant plastic soft protection layers are arranged above the dung accumulation tank and the slurry storage tank. Dung water is fermented to generate biogas and biogas slurry, organic fertilizers are generated after solid-liquid separation, the possibility of secondary pollution caused by waste gas is avoided, waste is effectively and sufficiently reused, and comprehensive utilization rate is increased.

The invention discloses a preparation method of an organic fertilizer for vegetables. The preparation method comprises the following steps: (1) mixing the following raw materials in parts by mass: 200 parts of a 5%-8% palm essence solution, 290 parts of a 5%-8% bamboo essence solution and 50 parts of bamboo stem cells, adding water and fermenting for 7-8 days; (2) mixing 100 parts of a 5%-8% moran or intsia essence solution with 30 parts of moran or intsia stem cells, adding water and fermenting for 7-9 days; (3) adding 180 parts of a 5%-8% eichhornia crassipes or duckweed essence solution and 30 parts of eichhornia crassipes or duckweed stem cells into a mixture obtained in the step (2), adding water and fermenting for 8-9 days; (4) adding 100 parts of 5%-8% akala essence and 20 parts of akala stem cells into a mixture obtained in the step (3), adding water and fermenting for 6-8 days; (5) performing rotary separation on a fermented product prepared in the step (4) through a centrifugal separator at the speed of 15,000 r/min for 2 hours, and fermenting at 30-35 DEG C for 6-8 days.

The invention relates to a preparation method of a botanic organic fertilizer. The preparation method comprises the following steps: (1) according to mass fraction, mixing 300 parts of 5-10% palm essence solution, 40 parts of 5-10% bamboo essence solution and 60 parts of bamboo stem cells, adding a moderate amount of distilled water for uniformly stirring, and fermenting for 7-8 days; (2) re-mixing 190 parts of 5-10% Moran or Merbau essence solution and 10 parts of Moran or Merbau stem cells, and fermenting for 7-9 days; (3) adding 180 parts of 5-10% Eichornia crassipes or duckweed essence solution and Eichornia crassipes or duckweed stem cells into the mixture obtained from the step (2), and fermenting for 7-9 days; (4) adding 100 parts of 5-10% akala parasitic plant essence solution and 10 parts of akala parasitic plant stem cells into the mixture obtained from the step (3), and fermenting for 6-8 days; and (5) after fermenting 100 parts of milk for 7 days, adding the milk into the mixture obtained from the step (4), and fermenting for 7 days to obtain the product botanic organic fertilizer.

The invention relates to a pseudoionone synthesis method which includes the step of sequentially performing Saucy-Marbet reaction and isomerization reaction of hotrienol and 2-methoxypropene in a micro-channel reactor to prepare pseudoionone. Therefore, continuous production of the pseudoionone is realized, the method is high in efficiency, yield and selectivity and less in pollution and conformsto green chemical development concept, and reaction steps are fewer.

The invention discloses a method for co-producing synthesis gas through treatment of high-concentration salt and high-COD sewage. High-concentration salt and high-COD sewage are concentrated, the mass fraction of the total solid content of the high-concentration salt and the high-COD sewage ranges from 10% to 60%, and then the concentrated materials and oxygen are mixed and atomized on a nozzle; then the mixture enters a pressurizing coal gasifier, splitting, converting and oxidizing reactions are carried out under the working condition of 2 Mpa to 8 Mpa and 1,250 DEG C to 1,500 DEG C, and water gas is generated; finally, the water gas is washed and dedusted, and the clean synthesis gas is obtained. The synthesis gas can be used for producing synthesis ammonia, methyl alcohol, ethanediol and other chemical products, and the utilization value of the sewage is improved. Harmful waste hard to treat is converted into raw materials for producing chemical products, remarkable social and economic benefits are achieved, and the method conforms to the development concept of circular economy.

The invention provides steel specially for an agricultural cultivator wear part. The steel comprises, by mass, 0.30 to 0.50% of C, 0.20 to 0.40% of Si, 1.0 to 1.5% of Mn, less than or equal to 0.035%of P, less than or equal to 0.035% of S, 0.30 to 0.70% of Cr, less than or equal to 0.20% of Cu, less than or equal to 0.015% of Ni, less than or equal to 0.080% of Ti, 0.040 to 0.12% of Al, less thanor equal to 0.0030% of V, less than or equal to 0.050% of B, less than or equal to 0.050% of Mo, less than or equal to 0.01% of Nb and the balance of Fe. In production, the components are used, heated, molded, quenched through water and finally molded. The steel specially for an agricultural cultivator wear part has toughness, plasticity, impact resistance, bending resistance, breaking resistanceand wear resistance meeting the manufacturing requirements of the wear part of the agricultural cultivator, can be quenched through tap water during heat treatment without tempering and is environmentally friendly.

The invention belongs to the technical field of saline-alkali soil improvement fertilizers, particularly relates to a solid-liquid synergistic saline-alkali soil conditioner, and further discloses a preparation method for the solid-liquid synergistic saline-alkali soil conditioner. According to the solid-liquid synergistic saline-alkali soil conditioner, according to the actual conditions of soil,effective measures are taken according to local conditions, carbon manure decomposed materials, humic acid and acidic residues serve as solid components, and wood vinegar serves as a liquid component. The prepared saline-alkali soil conditioner has the advantages that under different periods and soil conditions, the solid components and the liquid components are used, so that the physicochemicalenvironment of the soil can be effectively improved, the growth of plants can be promoted, and the growth and development of fruits can be promoted.

The invention provides a preparation method of resin-based graphene-modified activated carbon. The preparation method includes the following steps: hydrothermally reacting a phenolic compound with analdehyde compound and graphene oxide to obtain a composite; in a protective atmosphere, carbonizing the composite obtained by the previous step to obtain a carbonized material; mixing the carbonized material obtained in the previous step with an activator, and then activating the mixture in a protective atmosphere to obtain a primary activated carbon product; subjecting the primary activated carbon product obtained in the previous step to heat treatment under the protection of a reducing gas and/or a protective atmosphere to obtain the resin-based graphene-modified activated carbon. The preparation method has the advantages that raw materials, including the phenolic compound, the aldehyde compound and the graphene oxide, are subjected to hydrothermal synthesis to achieve uniform dispersionof graphene in resin, so that catalysts, initiators and curing agents are reduced, the performance of the composite is ensured, and the problem of difficulty in dispersion of the graphene in the resin is solved.

The invention discloses a comprehensive utilization system for feces in a large-scale breeding industry. The comprehensive utilization system comprises a feces collecting unit, a solid-liquid separating unit, an anaerobic fermentation unit, a biogas utilization system and a biogas slurry utilization system, wherein the feces collecting unit comprises a filter tank and a manure pit; the solid liquid separating unit comprises a solid-liquid separator, a buffer pool and an organic fertilizer treatment device; the anaerobic fermentation unit is a multi-grade anaerobic reaction device and comprises a first-degree anaerobic reaction tank and a second-degree anaerobic reaction tank; the biogas utilization system comprises a biogas cabinet, a biogas purification device and a biogas generation device; the biogas slurry utilization system comprises a biogas slurry storage pool, a farmland irrigation device and a forestry irrigation device; an annular sterilizing device is arranged at the periphery of each of the filter tank, the manure pit and the buffer pool; a plastic film layer is arranged above the filter tank, the manure pit and the buffer pool. Feces wastewater is fermented to produce biogas and biogas slurry, and the organic fertilizer is produced through solid-liquid separation, so that secondary pollution of waste gas is avoided, the feces wastewater is fully reutilized, and the comprehensive utilization rate is increased.

The invention provides a method for producing green modified nanometer Fe-Sn double-metal particles by utilizing pine bark and belongs to the technical field of nanometer materials and waste water treatment. The method comprises the following steps: crushing dried pine bark, soaking the crushed pine bark in absolute methanol, and carrying out ultrasonic treatment and filtering to obtain pine barkextract; mixing the pine bark extract and a ferrous sulfate solution to obtain a ferric salt and pine bark extract mixture, and then adding a potassium borohydride solution to obtain a suspension of pine bark modified nanometer ferric particles; and then adding a stannous chloride solution, generating pine bark modified nanometer Fe-Sn double-metal particles and carrying out washing by utilizing deionized water and acetone. The removal rate of reactive brilliant blue KN-R in waste water is as high as more than 99%.

The invention relates to a novel metal organic framework molecular material of an electron-rich system. The molecular formula of the metal organic framework molecular material is C27H21CdN9O7, the chemical formula of the metal organic framework molecular material is [Cd(TIPA)(NO3)2].H2O, and the metal organic framework molecular material is called Cd-TIPA (TIPA=tris-(4-imidazolylphenyl) amine) forshort. The compound belongs to a monoclinic system and a C2 space group, and the topological structure is a utp type. The synthesis method specifically comprises the following steps: uniformly mixingCd(NO3)2.6H2O and TIPA in a mixed solvent of distilled water and N,N-dimethyl formamide, then transferring the mixture into a reaction kettle to react for 70-80 hours at 90-100 DEG C, cooling to a room temperature, separating out crystals, washing and drying to obtain Cd-TIPA. The novel metal organic framework molecular material can be used as a photocatalyst for catalytic reduction of heavy metal ions, in particular, Cr (VI) and Mn (VII).

The invention belongs to the technical field of edible oil and specifically relates to tropical functional low-calorie coconut flavor blend oil. In the tropical functional low-calorie coconut flavor blend oil provided by the invention, the weight ratio of saturated fatty acid to monounsaturated fatty acid to polyunsaturated fatty acid is (3.5-5.5):(3-4.5):(1-3), the blend oil also contains vitaminE, and the weight ratio of the vitamin E to the unsaturated fatty acid is 0.8:1000. The tropical functional low-calorie coconut flavor blend oil provided by the invention contains rich and balanced nutrients, realizes reasonable collocation of the proportions of the fatty acids and the vitamin E, has the fragrance of coconuts, also has low fat and low calorie and can effectively prevent and relieve hyperlipemia, obesity, heart disease, arteriosclerosis and other chronic diseases. In addition, the tropical functional low-calorie coconut flavor blend oil provided by the invention has high stability.

The invention relates to the field of polymer synthesis, and discloses a preparation method of bromo-pyrrolecarbonitrile grafted block type acrylic acid self-polishing resin and an environmentally-friendly marine antifouling composition. The bromo-pyrrolecarbonitrile grafted block type acrylic acid self-polishing resin is a block type polymer and contains a block easy to hydrolyze and a block difficult to hydrolyze. According to the invention, after the resin is applied to the surface of a marine facility (such as the bottom of a ship) as a coating material component, a unique dynamic hydration layer can be formed after the block easy to hydrolyze meets water, so that the effect of actively inhibiting fouling can be achieved; an anti-fouling agent bromo-pyrrolecarbonitrile is grafted on the block difficult to hydrolyze, so that fouling can be passively eliminated and inhibited; and the marine antifouling composition can effectively reduce the use amount of cuprous oxide, can also be applied to a copper-free tin-free self-polishing system, and is environmentally-friendly.

The invention relates to a cultivation net box, in particular to a large bottomless cultivation net box, and belongs to the technical field of cultivation net boxes. The large bottomless cultivation net box is characterized in that the whole large bottomless cultivation net box is of a cuboid structure and includes a buoy combination floating on the surface of water, the buoy combination is rectangular, each long side of the buoy combination is composed of a row of buoys, each short side of the buoy combination is composed of at least two rows of buoys through connection, the buoys on the long and short sides are fixedly connected with an anchor which sinks at the bottom of the water through ropes, and the ropes stretch the long and short sides towards the two sides and fix the long and short sides; the lower portion of the buoy combination is fixedly connected with a purse seine, and the lower edge of the purse seine is fixedly connected with a rectangular iron chain which sinks at the bottom of the water. According to the large bottomless cultivation net box, the production cost is reduced, the weight of the net box is reduced, and the wind and wave resistance properties are improved; according to conditions of a sea area, the shape of the net box is flexibly combined, the layout is flexible, and the adaptability is high.

The invention discloses an asynchronous simultaneous separation process of poor and difficult-to-separate nickel-copper ore. A cyclone centrifugal separation beneficiation technology is adopted, a part of gangue and metal minerals with low nickel-copper grade and fine granularity and meeting secondary flotation conditions are separated in advance in an ore grinding loop before flotation of the low-grade poor and difficult-to-separate copper sulfide ore, and directly enter the secondary flotation, so that the recovery rate of nickel-copper metal and the concentrate quality are improved. According to the asynchronous simultaneous separation process of the poor and difficult-to-separate nickel-copper ore, a process for pre-grading an ore grinding product by utilizing centrifugal gravity ore beneficiation equipment is applied to the ore grinding loop of a copper-nickel ore beneficiation flow. The asynchronous simultaneous separation process of the poor and difficult-to-separate nickel-copper ore can improve the flotation operation efficiency of each section, reduces the process energy consumption, achieves the purpose of improving the final copper-nickel separation index, and is economical, applicable, simple and good in beneficiation effect.

A triethanolamine-modified gutter oil-based method for preparation of metal cutting fluid comprises the following steps: filtering gutter oil to remove insoluble substances, adding the filtrate into a reaction vessel, adding an inorganic acid aqueous solution of the same volume, warming up and stirring for a reaction, cooling the reaction system to room temperature, standing for liquid separation, washing an oil phase by the use of water of the same volume for three times so as to obtain acid-treated gutter oil; and adding the acid-treated gutter oil into a reaction kettle, adding triethanolamine while stirring, stirring at room temperature for a reaction, successively adding auxiliary base oil, chlorinated paraffin, petroleum sodium sulfonate, alkylphenol polyoxyethylene, sodium napthionate, s-triazine and benzotriazole, and stirring to obtain the required product. The method is simple to operate and easy to realize. By the method, the metal cutting fluid with excellent performance can be obtained, and comprehensive utilization of wastes can be realized.