8results about How to "Good activity" patented technology

The present application belongs to the technical field of biological oil catalytic hydrogenation, and particularly relates to a bio-based oil-soluble molybdenum catalyst, a preparation method and application thereof. The preparation method of the bio-based oil-soluble molybdenum catalyst provided by the present application comprises: mixing a molybdenum source, a bio-based linear organic acid with a carbon atom number of 16 or more and an additive, heating and reacting, and separating to obtain the bio-based oil-soluble molybdenum catalyst; the additive is selected from at least one of tetrahydro naphthalene and decahydro naphthalene. The bio-based oil-soluble molybdenum catalyst green material obtained by the present application has optimal activity and high dispersibility when used, can realize more sufficient mixing with raw materials, forms nano high-dispersed molybdenum sulfide through sulfuration, and realizes high-efficiency hydrogenation refining of oil products through the joint action of hydrogen and sulfur, while reducing the sulfur, oxygen and metal residues in the product oil.

The application discloses a kind of biological nano preparations for heavy oil exploitation and preparation method thereof, it is related to oil exploitation technical field, and biological nano preparations for heavy oil exploitation is composed of the following mass percentage components: composite microbial fermentation liquor: 25~45%;Bio-surfactant: 6~12%;Nano metal oxide: 0.1~1.0%;Organic solvent: 10~20%;Slow-release carrier material: 2~8%;Stabilizer: 0.5~2%;The balance is water;Wherein, the composite microbial fermentation liquor is fermented by pseudomonas aeruginosa, bacillus subtilis and clostridium anaerobic bacillus under co-cultivation condition.The metabolic product of composite bacteria species used in the application contains a large amount of bio-surfactant, which can effectively reduce the oil-water interfacial tension to 10-3mN / m order of magnitude.Nano metal oxide produces local high temperature through quantum size effect, and promotes thick oil molecular chain to break.

The present application relates to the field of compound synthesis technology and pesticides, and in particular to a pyridazine derivative, a preparation method and application thereof, the pyridazine derivative is an aromatic ether and an N-substituted phenylcarboxamide group; the aromatic ether is a substituted pyridazine group substituted phenyl ether; the substituted phenyl group is trifluoromethyl or halogen substitution, and the phenyl group containing the N-substituted phenylcarboxamide group is substituted by different halogen groups; the derivative has effective pre-emergence and post-emergence herbicidal activity, and can be applied as a herbicide; the structure of the derivative is simple, the production cost is low, and the application prospect is wide.

The present application relates to the technical field of floor mat processing equipment, in particular to a floor mat calendering and laminating device, comprising a unwinding mechanism, a surface layer preheating mechanism, a laminating mechanism, an exhaust mechanism and a backing preheating mechanism, the unwinding mechanism comprises air inflation shaft one and base one, the two bases one are distributed in front and back, the upper end of the base one is provided with air inflation shaft one, the surface layer preheating mechanism comprises ion wind rod, preheating groove one, ion wind rod holder and support two, the two bases one are placed with base two, the upper surface of the base two is fixedly connected with ion wind rod holders which are symmetrically distributed left and right, the upper and lower ends of the two ion wind rod holders are fixedly connected with ion wind rods, and the air inlets of the ion wind rods are communicated with external air pumps. The floor mat calendering and laminating device preheats the surface layer and the backing of the floor mat respectively, and the negative pressure adsorption mechanism actively draws away the air between the two layers of materials, thereby improving the product yield and production efficiency.

The invention relates to the technical field of organic fertilizers and soil remediation. The invention provides a microbial organic compound fertilizer for soil remediation. The microbial organic compound fertilizer is characterized in that a complex formed by covalent bonding of modified UiO-66 (Zr) bifunctional ligand MOF nanoparticles and low-temperature activated wood biochar through an epoxy silane coupling agent is taken as a core; a PEC microcapsule shell formed by chitosan salt and sodium carboxymethyl cellulose under the near-neutral and low-salt condition is coated outside the PEC microcapsule; phosphorus solubilizing bacteria with metal response regulation and control are packaged inside, trehalose, skimmed milk powder and glycerin are matched for keeping alive, and low-temperature drying and granulation are carried out. The compound fertilizer can release phosphorus as required at a pollution peak value, stabilize and passivate heavy metals such as Cd, Pb and the like, the availability of available phosphorus and crops is improved, the finished product viable bacteria is greater than or equal to 1 * 10 CFU / g, and the water content is 1t; the structure is stable, and the storage and transportation performance is excellent.

The present application relates to a kind of carbon nanotube-Fe base hydrogen production electrocatalyst and application, belong to water electrolysis hydrogen production technical field.The present application is mainly realized by the following steps: one, current collector surface pretreatment;Two, solvothermal synthesis Fe base precursor;Three, in situ preparation carbon nanotube-Fe base electrocatalyst under chemical vapor deposition;Four, electrochemical in situ activation.The present application proposes carbon nanotube-Fe base composite electrocatalytic structure in situ construction on the surface of conductive current collector for the first time.Under the synergistic effect of each parameter in preparation process, the obtained structure not only can give full play to the conductive and structural advantages of carbon nanotube, but also can regulate the electronic structure of Fe base active site through interface coupling effect, so as to significantly improve the performance of water electrolysis hydrogen production.Compared with prior art, in situ preparation electrocatalyst is in situ bonded with current collector and has good dispersibility, and carbon nanotube-Fe base electrocatalyst is conducive to forming conductive network and improving electrocatalytic efficiency.

The application relates to the field of biological medicine, and discloses a bifidobacterium adolescentis YF-01 and application of the bifidobacterium adolescentis YF-01 in fermented milk. The bifidobacterium adolescentis YF-01 is isolated from adult feces and is preserved in the China Center for Type Culture Collection, with a preservation number of CCTCC NO: M 20251308. Experiments prove that the bifidobacterium adolescentis YF-01 has good gastrointestinal fluid tolerance, the survival rate can reach 90.1% after being treated by simulated gastric juice for 3 hours, and the survival rate can reach 72% after being treated by simulated intestinal juice for 4 hours. The self-aggregation rate of the strain is 88.83%, and the hydrophobicity is 79.41%; the strain has significant scavenging capacity for DPPH free radicals and hydroxyl free radicals, and shows good antioxidant activity and adhesion capacity, which provides a theoretical basis for the application of the strain in fermented milk. The strain and metabolites thereof can be used for preparing food, medicine or health care products with the functions of regulating intestinal flora and enhancing antioxidant capacity, and have significant application potential in the development of functional fermented milk products.

The application belongs to the field of daily chemicals, and discloses a preparation method of caviar extract. The caviar extract is obtained by Soxhlet extraction with ethanol or diethyl ether as solvent. In the application, the caviar extract is obtained by Soxhlet extraction with ethanol or diethyl ether as solvent. The content of DHA in the obtained extract is 3.1-8.1 wt%, the content of vitamin E is 500-1150 μg / g, and the content of phosphatidylcholine is 3-4.8 wt%. The content of effective components is much higher than that of enzymatic hydrolysis. Another purpose of the application is to provide the application of the caviar extract.