47results about How to "Good prospects for industrial development" patented technology

The invention relates to a preparation method of an organic macromolecule polymer coating oil-water separating net, which comprises the following steps: 1)mixing a polymerization monomer and an initiator in proportion and stirring, injecting a mixed liquor into a reactor equipped with a template under negative pressure condition, immersing the template for 1 hour, polymerizing for 24 hours at temperature of 80 DEG C, after a polymerization reaction is stopped, peeling a homopolymer on surface of the template, removing the template, fully grinding the blocked micro nano polyhedral compound to obtain the powder, adding into a dispersion liquid, wherein the solid masses concentration percentage is 0.5-20% of suspending liquid; 2)performing ultrasonic cleaning on the netted material and drying under air, immersing an adhesive solution and then taking out, after a part of the adhesive is solidified, and employing a spray process for coating the suspending liquid on the net so as to form the netted material capable of separating oil and water. The preparation method reduces usage restriction of the oil-water separating net membranes, and has rapid and stable oil-water separating effect.

The invention relates to a preparation method of an amphiphilic Janus hierarchical pore microcapsule with an opening structure. The preparation method comprises the following steps of performing occupying modification on the outer surfaces of core/shell composite microspheres; then, swelling the core/shell composite microspheres to form the anisotropic composite microspheres with bulges, and dissolving by a good solvent to remove a template, so as to form a microcapsule with the opening structure; finally, performing different functionalizing on the inner surfaces of the microcapsules, so as to obtain the microcapsule material with the hydrophilic inner surface and the hydrophobic outer surface, or the hydrophobic inner surface and the hydrophilic outer surface. The prepared microcapsule material has excellent biological compatibility, good organic solvent-resistant property, chemical corrosion-resistant property and high mechanical stability, and has huge potential application value in the fields of micrometer-nanometer reactors, load catalyzing and the like.

The invention discloses a wear-resistant, hydrophobic and lipophilic material. According to the wear-resistant, hydrophobic and lipophilic material, a lipophilic substrate material is adopted, metal stearate is adhered to the surface of the substrate, and a wear-resistant and hydrophobic surface layer is formed on the surface of the substrate by using the hydrophobic characteristic of the metal stearate, so that wear-resistant, hydrophobic and lipophilic effects are achieved. The material is low in cost, has good hydrophobic characteristic and lipophilic characteristic and can be applied to oil-water separation technologies, and an oil-permeable and water-impermeable meshed membrane is achieved; and the material is applicable to the separation of water-insoluble organic solvents such as kerosene, gasoline, diesel, engine oil, toluene, dichloromethane, vegetable oil and petrol from water.

The invention relates to a method for removing VOCs (volatile organic chemicals) by ozone and photolytic peroxide. According to the method, the VOCs from a discharging source are firstly pre-oxidized into organic intermediate by the ozone in a flue, ultraviolet light excites the peroxide to generate sulfate radical and hydroxyl free radical, so that the VOCs and the organic intermediate generated by oxidization of the ozone are further oxidized, and final decomposition products are harmless CO2 and harmless H2O. The VOCs in flue gas can be efficiently removed, secondary pollution is avoided in the removing process, and a novel VOCs purification system has a wide application prospect.

The invention relates to a preparation method of bamboo-like nitrogen-doped carbon nanotubes loaded with metal monoatoms and nanoparticles. The method comprises the following steps of: adding 2-methylimidazole, metal salt, a zinc-containing compound and grinding balls into a ball milling tank, and carrying out ball milling for 2-8 hours to obtain a mixture containing ZIFs single crystals; and placing the mixture containing ZIFs single crystals in a quartz boat, heating the mixture to 800-1100 DEG C from room temperature at a speed of 2-5 DEG C min <-1 > in a tubular furnace, maintaining the temperature for 1-3 hours, and naturally cooling to room temperature to finally obtain bamboo-like nitrogen-doped carbon nanotubes loaded with metal monoatoms and nanoparticles. The steps of washing, separating and the like are not needed, the method has huge potential application value in the fields of photo-thermal catalysis, concerted catalysis and the like, and the application range of the method in the catalysis field is widened.

The invention discloses a method for producing environment-friendly rubber oil through blending method. The method provided by the invention comprises the following steps that firstly extracting decompressed residual oil with solvent to obtain deasphalted oil, wherein the solvent for extraction is propane, the ratio by volume of the solvent and the decompressed residual oil is (6-8):1, and the extraction conditions are that the temperature of a tower top is 60-95 DEG C, the temperature of a tower bottom is 50-80 DEG C, and the pressure is 2.8-7.0 MPa, secondly mixing deasphalted oil obtained in the first step with naphthenic oil for 30-120 min with 70-90 DEG C to obtain environment-friendly rubber oil, wherein the mass ratio of the deasphalted oil and the naphthenic oil is (0.2-0.6):(0.8-0.4). The environment-friendly rubber oil produced by the invention accords with the environment-friendly instruction requirement of EU 2005/69/EC, wherein aromatic-carbon rate is 12%-18%, the content of PCA is smaller than 3%, the content of aromatic hydrocarbons is high, and the rubber oil is environment-friendly, nontoxic, and has no carcinogenic effect. The environment-friendly rubber oil can be used as succedaneum of existing aromatic oil, and has great economic values.

The invention discloses recombinant saccharomyces cerevisiae for producing astaxanthin, and application of the recombinant saccharomyces cerevisiae. According to the recombinant saccharomyces cerevisiae disclosed by the invention, a [beta]-carotene ketolase gene CrtW is subjected to constitutive expression, a [beta]-carotene hydroxylase gene CrtZ is subjected to inducible expression, and an intermediate product [beta]-carotene is synthesized into the astaxanthin. According to the recombinant saccharomyces cerevisiae, a constitutive promoter is used for regulating and controlling the CrtW gene to be firstly expressed, the inducible promoter is used for regulating and controlling the CrtZ gene to be expressed subsequently, so that the metabolic flux of the synthesis path of the astaxanthin of the saccharomyces cerevisiae is obviously improved, the yield of the astaxanthin reaches 464.90 mg/L, and the recombinant saccharomyces cerevisiae has a good industrial development prospect.

The invention discloses a modification method of a nano material for a high-viscosity coating, and a preparation method and application of a corona-resistant composite coating. The modification methodof the nano material for the high-viscosity coating comprises the steps of activation, grafting and silane coupling modification which are carried out in sequence. The preparation method of the corona-resistant composite coating comprises the step of mixing the modified nano material with a corona-resistant coating to obtain the corona-resistant composite coating which is applied to the coating of corona-resistant enameled wires. The nano material modified by the method is uniformly dispersed in a high-viscosity coating system, does not settle and has high stability. The invention belongs tothe field of high polymer materials. The nano material is suitable for the corona-resistant composite coating, and the corona-resistant composite coating is used for coating the corona-resistant enameled wires, and can prolong corona-resistant time by more than 80 hours. The modified nano material has good compatibility with the corona-resistant composite coating, and does not influence the performance of the main body polymer of the corona-resistant composite coating.

The invention relates to a genetically engineered bacterium expressed by a nitrile hydratase gene, and particularly relates to a recombinant expression vector, a genetically engineered bacterium, and a culture method and application of the genetically engineered bacterium. The recombinant expression vector contains a section of nitrile hydratase gene, and the sequence of the nitrile hydratase gene is shown as SEQ ID NO. 1; the genetically engineered bacterium is a host microorganism carrying the recombinant expression vector; the culture method comprises the following steps of: culturing the host microorganism in an LB culture medium to obtain a seed solution, and then inoculating the seed solution into a fermentation culture medium for culturing to obtain the genetically engineered bacterium. Compared with the prior art, the nitrile hydratase gene can realize efficient expression in the engineered bacterium and has excellent enzymatic activity, and the specific enzyme activity can reach 50U/mg or above through determination and can reach 100U/mg under a preferred condition, so that the catalytic synthesis efficiency of nicotinamide is high, the conversion rate can reach 99% or above, and the production efficiency reaches 720g/(L.h).

A method of processing low-value fish antibacterial peptides is disclosed. The method includes steps of preparing, sterilizing, degreasing, performing microwave extraction for purification, performing centrifugal purification, performing enzymatic hydrolysis, performing centrifugal purification, and performing purification with ammonium sulfate to obtain a finished product. Swim bladders of low-value fish are degreased, impurities are removed by filtration, proteins in the swim bladders are purified, then the enzymatic hydrolysis is performed to hydrolyze the proteins into antibacterial peptides, and enzymatic-activity peptides are used to increase activity of compound protease, thus accelerating hydrolysis and increasing the processing efficiency. Beneficial effects of the method are that the swim bladders of low-value fish are utilized to produce the antibacterial peptides to achieve high-value utilization of the swim bladders, the antibacterial peptides prepared by the method have characteristics of capability of being natural, nontoxic, pollution-free, antibacterial, efficient, wide in antibacterial spectrum, and the like, and the finally obtained antibacterial peptides are high in yield and purity, can be applied in industrial production and have a good development prospect.

The invention belongs to the field of organic-inorganic composite materials. In order to solve the problem that silica sol is sensitive to the external complex environment so as to be easy to cause the phenomena such as flocculation and solidification, the invention provides a preparation method of an organic modified silica sol. The method comprises the following steps of preparing an organic modifier first, and then modifying the silica sol, so that the obtained silica sol is higher in grafting yield, good in storage stability and applied to water-based paint.