68results about How to "Facilitate industrial scale-up production" patented technology

The invention discloses a carbon composite material. The carbon composite material comprises 0.1-35wt% of a carbon nanomaterial and 99.9-65wt% of amorphous carbon with a high surface area; the carbon nanometer is one or a mixture of more of carbon nanotubes, carbon fibers, graphene oxide and graphene; and the specific surface area, the pore volume and the conductivity of the composite material are not lower than 800m<2>/g, not lower than 0.3cm<3> and not lower than 4S/cm respectively, and the aperture of the composite material is 0.5-10nm. The carbon composite material has the respective characteristics of the carbon nanomaterial and the amorphous carbon, realizes the organic combination of the carbon nanomaterial and the amorphous carbon in functions, has high surface area and high conductivity, and can provide superior capacity and rate performance as an excellent electrode and conductive material of super capacitors, lithium ion capacitors, fuel batteries and lead carbon battery electrodes. The carbon composite material can remove impurities in water as an electrode material in water treatment devices.

The invention belongs to the technical field of egg product processing and particularly relates to a desalination method of salted egg white. The desalination method is characterized by adopting an electrodialysis method; and according to the desalination method, the salted egg white is used as a liquid in a thinned compartment of an electrodialyzer, running water is used as a liquid in a concentrated compartment of the electrodialyzer, a sodium chloride solution is used as a liquid in an electrode compartment of the thinned compartment, and the electrodialysis desalination operation is carried out with a certain flow rate and a certain temperature under a certain membrane pair voltage. According to the desalination method, in main operation parameters, the salted egg white in the thinned compartment serves a stock solution to be diluted by 2-50 times, the pH of the salted egg white is regulated to 3-11, and the concentration of the sodium chloride solution in the electrode compartment is 20-40g/L; the flow rate of the salted egg white in the thinned chamber is regulated to 30-80L/h, the flow rate of the running water in the concentrated compartment is regulated to 30-80L/h, and the flow rate of the sodium chloride solution in the electrode compartment is regulated to 30-50L/h; the membrane pair voltage of the electrodialyzer is regulated to 0.5-1.5V; and the working environment temperature of the electrodialyzer is regulated to 10-40 DEG C. Under preferable conditions, the desalination rate can reach more than 95%, and the loss ratio of egg-white proteins is below 10%. According to the desalination method, the salinity in the salted egg white can be effectively removed.

The invention discloses a heterogenous photocatalyst with a multichannel carrier separation function and a preparation method and application of the heterogenous photocatalyst with the multichannel carrier separation function.The heterogenous photocatalyst 100% in total, comprises, by weight, 0.1-10% of ZnO and the balance mixed-phase titanium dioxide P25.The ZnO serving as a compound-phase component is dispersed in the catalyst uniformly, two phases are sufficiently mixed together, electron-hole produced by ultraviolet excitation of the P25 can be separated effectively, and the ZnO/P25 heterogenous photocatalyst demonstrates more excellent photocatalytic performance than the P25.When the heterogenous photocatalyst is applied to ultraviolet light catalytic reaction of low-concentration methylbenzene organic gas, methylbenzene in a system can be completely oxidized into carbon dioxide and water at room temperature.The preparation method is simple, mild in preparation conditions, convenient to operate and convenient for enlarged industrialized production.

The invention discloses a titanium carbide-titanium tetrasulfide (Ti<3>S<4>) composite material with an accordion-shaped microstructure and a preparation method therefor. Ti<3>SiC<2>, Ti<3>AlC<2> or Ti<2>AlC ceramic powder material is etched by hydrofluoric acid; the prepared accordion-shaped titanium carbide material, used as the raw material, is reacted with titanium carbide through elementary sulfur in a high temperature condition to prepare the titanium carbide-titanium tetrasulfide (Ti<3>S<4>) composite nanomaterial with the accordion-shaped microstructure. The titanium carbide-titanium tetrasulfide (Ti<3>S<4>) composite nanomaterial is used as the negative electrode material of a lithium ion battery; and the composite material shows relatively high specific capacity and high rate capability and charging-discharging cycling performance.

The invention discloses a gadolinium chromate/silver/silver phosphate compound photocatalyst and an application thereof in purification of volatile organic compounds (VOCs). The expression of the compound is GdCrO3/Ag/Ag3PO4. the preparation method comprises the following steps: 1) placing a gadolinium source and a chromium source into a mortar according to a ratio of 1:1, adding a proper amount of urea, uniformly carrying out grinding, and then carrying out roasting in a specific atmosphere at a high temperature to obtain gadolinium chromate; 2) loading silver particles on the gadolinium chromate to obtain a gadolinium chromate/silver compound; and 3) loading silver phosphate on the gadolinium chromate/silver compound to obtain the gadolinium chromate/silver/silver phosphate compound. Elemental Ag in the GdCrO3/Ag/Ag3PO4 prepared by the preparation method is subjected to plasma resonance under excitation of visible light to generate hot electron-hole pairs. The hot electron-hole pairs are connected with a semiconductor GdCrO3 and Ag3PO4 with energy gap separation without sacrificing oxidation or reduction potentials of the semiconductor GdCrO3 and Ag3PO4, so that the photocatalytic oxidation reduction capability of the compound is enhanced. The GdCrO3/Ag/Ag3PO4 is used for photocatalytic degradation of organic pollutants, and can completely catalyze purification of typical organic gas pollutants such as toluene, xylene, benzene and the like under visible light irradiation and mild reaction conditions such as 90 DEG C.

The invention discloses a synthesis method of 2-formyl-4-carboxylic acid ethyl ester thiazole, the synthesis method takes dichloroacetic acid, sodium ethoxide and ethanol as initial raw materials to firstly synthesize 2,2-diethoxyacetic acid ethyl ester, then ammonia water is added to ammoniate to obtain 2,2-diethoxyacetamide, the 2,2-diethoxyacetamide is converted into 2,2-diethoxythioacetamide through thioation by use of a vulcanizing reagent, then the 2,2-diethoxythioacetamide is condensed with 3-ethyl bromopyruvate to generate 2-diethoxymethyl-4-carboxylic acid ethyl ester thiazole, and finally acid deprotection is performed in an acetone solution to obtain the 2-formyl-4-carboxylic acid ethyl ester thiazole. According to the synthesis method of the 2-formyl-4-carboxylic acid ethyl ester thiazole, and the used raw materials are low in price, high in safety and easy to obtain. In addition, the synthesis method has the advantages of short synthesis route, high yield, high chemical purity of the obtained product, no need of complicated operation, and large-scale production.

The invention provides a preparation method of a nano-filtration membrane. The preparation method comprises an interfacial polymerization reaction step and a post-processing step, wherein the interfacial polymerization reaction step is as follows: preparing an aqueous phase solution and an oil phase solution, pouring the aqueous phase solution and the oil phase solution into the membrane surface of the nano-filtration membrane in sequence and pouring away; the post-processing step is as follows: evaporating for 0.2-2 minutes in a baking oven with a temperature of 80-100 DEG C, then immediately soaking in an aqueous solution containing 30-100 weight percent of modifying agent for 30-120 seconds after evaporation and preparing a reverse osmosis membrane. As the membrane obtained after the completion of interfacial polymerization reaction is soaked in the aqueous solution containing the modifying agent in the preparation process, the high-performance nano-filtration membrane of which the throughout and the organic small molecular interception rate are obviously improved is obtained.

The invention discloses 7-azaspiro-[3,5]-nonane-2-ol and a hydrochloride compound thereof. Concretely, N-Boc-4-piperidone is used as a raw material, a wittig reaction is carried out in order to prepare N-Boc-4-methylenepiperidine, zinc/copper is used for catalysis of trichloroacetyl chloride in order to carry out [2+2] cyclisation for preparing N-Boc-7-azaspiro ketone; the azaspiro ketone intermediate is reduced into N-Boc-7-azaspiro-ol by sodium borohydride at a room temperature, and finally 2mol/L hydrochloric acid-ethyl acetate is used for removing Boc in order to prepare a target product hydrochloride whose purity reaches 98%. The product has the advantages of economical and easily available reagents and raw materials which are needed, simple operation, and high product purity; and the product is suitable for batch production.

The invention discloses a method for preparing pure enantio-methylpropane-2-sulfinamide. The method comprises the following steps: carrying out selective oxidation on di-tert-butyl disulfide and hydrogen peroxide, reacting with an acylation reagent so as to obtain tert-butylsulfinyl chloride and tertiary butyl sulfonyl bromide, further reacting with hydrazine hydrate so as to obtain tertiary butylhydrazide, further carrying out resolution and separation with a DBTA resolving agent, and carrying out cracking with zinc acetate, thereby obtaining the pure enantio-methylpropane-2-sulfinamide. Themethod is simple, convenient and stable in process operation, high in yield and good in environment protection, and compared with a conventional process, the method is cheap and easy in raw materialobtaining, low in production cost of pure enantio-methylpropane-2-sulfinamide, and beneficial to industrial on-scale production.

The invention discloses a fluorocarbon surfactant, a preparation method and application thereof, and belongs to the technical field of macromolecular surfactants. The fluorocarbon surfactant comprises a fluorine-loving component A and a temperature-sensitive component B, wherein the fluorine-loving component A comprises a fluorine-loving chain with a carbon chain length of at least C8, the temperature-sensitive component B comprises thermosensitive components such as poly N-alkyl acrylamide, a nonlinear polyethylene glycol based thermosensitive polymer and the like, and the fluorine-loving component A and the temperature-sensitive component B are connected through covalent bonds or non-covalent bonds. The fluorocarbon surfactant disclosed by the invention can be used for preparing micro-droplets, can keep the micro-droplets to be relatively good in stability under a relatively low temperature condition, and can be demulsified under a relatively high temperature condition. The fluorocarbon surfactant disclosed by the invention has the advantages of temperature-controllable surface activity capability, contribution to external control of emulsion droplet fusion and the like.

The invention discloses a jatropha curcas alkane type diterpenoid compound, a preparation method and application thereof, and belongs to the technical field of medicines. The preparation method comprises the following steps: firstly extracting euphorbia helioscopia by using an ethanol aqueous solution to obtain a crude extract, and then sequentially carrying out extraction, ODS chromatographic column and HPLC chromatographic multi-stage separation to obtain the jatropha curcas alkane type diterpenoid compound. According to the invention, the preparation method of the jatropha curcas alkane type diterpenoid compound is simple, easy to operate, convenient for industrial large-scale production, and suitable for industrial large-scale production of the jatropha curcas alkane type diterpenoid compound; and the jatropha curcas alkane type diterpenoid compound prepared by the invention has obvious cytotoxicity to a drug-resistant cell line A549/Taxol, and is expected to be used as a potential drug for treating drug-resistant lung cancer.

The invention discloses a preparation method of chiral optical pure p-toluene sulfamide. The preparation method comprises the following steps: performing acylating chlorination by using sodium p-tolylsulfinate and an acylating chlorination reagent to obtain p-toluene sulfonyl chloride, then mixing the p-toluene sulfonyl chloride with hydrazine hydrate to obtain p-toluene sulfonyl hydrazine, performing separation and dissociation with a tartaric acid resolving agent, and performing splitting decomposition with zinc acetate to obtain the pure p-toluene sulfamide. The process disclosed by the invention is easy and convenient to operate, stable, high in yield and environmentally friendly. Compared with the conventional process, the preparation method has the advantages that the raw materials are easy to obtain, the production cost of the existing chiral optical pure p-toluene sulfamide is substantially reduced, and the industrial large-scale production is facilitated.