95results about How to "Suitable for industrial scale-up" patented technology

The invention provides a preparation method for a photocatalyst used for treating volatile organic compounds. The preparation method is characterized in that titanium dioxide is used as a main active component, a transition metal is added as an auxiliary agent, and a normal temperature spraying process is employed to load titanium dioxide on a metal or ceramic honeycomb carrier. The preparation method comprises the following concrete steps: A) dissolving titanyl sulfate in deionized water, adjusting a pH value to 7 to 10 by using a 5 to 25% ammonia-water solution, subjecting an obtained white precipitate to centrifugation and washing, mixing and beating the precipitate and deionized water and adjusting the pH value to 7 to 10 by using H2O2 and HCl with stirring so as to obtain a titanium sol; B) adding a surfactant into the titanium sol, adding micro metal oxide powder with stirring, adding a binder and carrying out high-speed shearing and uniform stirring so as to prepare a stable coating solution; and C) uniformly spraying the coating solution on the carrier and drying and roasting the carrier so as to obtain a finished catalyst product. The catalyst prepared by using the method has the characteristics of high volatile organic compound removal efficiency, a long life, easy loading and unloading, a low price, etc.

The invention relates to a method for preparing an ozone catalytic oxidation catalyst for treating cyanide waste water, which is characterized in that amorphous alumina is used as a carrier, and in the process of pelltizing, copper, ferrum and tin which serve as active ingredients are sprayed in form of solution, and are subjected to curing, drying and roasting to prepare a catalyst. The method comprises the following steps of: (a) dissolving metal salts of the copper, the ferrum and the tin into water to form solution; (b) putting the amorphous alumina into a rotating pelletizer, spraying the solution in the step (a) into the pelletizer to perform rolling pelltizing, and controlling the pelltizing diameter; (c) curing the particulate matters obtained in the step (b) for 3 to 24 hours under the condition of water vapor of between 100 and 110 DEG C; and (d) drying and roasting the obtained catalyst in the step (c) to obtain a catalyst serving as a finished product, wherein the drying temperature is between 50 and 180 DEG C, the drying time is between 2 and 10 hours, the roasting temperature is between 400 and 600 DEG C, and the roasting time is between 2 and 8 hours.

The invention relates to a preparation method and application of 3-(4-chlorobutyl)-5-cyano-1H-indole. The preparation method comprises the following steps: after dissolving 3-(4-chlorobutyryl)-5-cyano-1H-indole in a solvent, adding trifluoroacetic acid, adding sodium borohydride in batches, and treating the reaction liquid to obtain the 3-(4-chlorobutyl)-5-cyano-1H-indole. The method overcomes the defects in the existing preparation method of an important intermediate 3-(4-chlorobutyl)-5-cyano-1H-indole of an antidepressant vilazodone hydrochloride, and has obvious creativity and practical application value. The reaction formula is disclosed in the specification.

The invention provides a method for preparing an orientation molecular sieve membrane, comprising the following steps: removing alcohol in pro-glue solution in an evaporation way by improving the hydrolysis temperature of silicon source and germanium source and promoting the hydrolysis thereof; directly contact heating up the pro-glue solution and a carrier; crystallizing under self-generated pressure; and preparing b-axial orientation Ge-ZSM-5 molecular sieve membrane. The orientation molecular sieve membrane is even and compact, and has no defect of large holes, wherein molecular sieve membrane crystalloid is oriented along the b axis, thereby being good for the process of mass transferring. The method can obviously improve the capability of the synthetic Ge-ZSM-5 molecular sieve membrane, has high repetitiveness and high raw materials utilization factor, and is suitable for industrial production.

The invention provides a stable everolimus tablet containing one or several selected from everolimus, 2,6-tert-butyl-4-methylphenol, a filling agent, an adhesive, a disintegrating agent and a lubricating agent, wherein everolimus is micronized before being tabletted, and the micronized median particle diameter D50 does not exceed 100mu m. The everolimus tablet prepared by the invention has the advantages of relatively high dissolution rate, favorable stability, low production cost, stable and controllable process parameters and the like.

The invention provides a recycling and reuse technology for preparing triphenylchloromethane. The technology comprises the following steps that hydrochloric acid or a mixture of the hydrochloric acidand Lewis acid is added into a solvent of triphenylcarbinol, stirring is conducted at a certain temperature, after a reaction is finished, separation is conducted, or after separation, recrystallization is further conducted, and the triphenylchloromethane is obtained after drying, wherein the reaction equation is shown in the description. The reuse technology is a recycling and reuse technology which is wide in raw material source, low in price and simple in production process operation and causes little pollution, and the technology is very suitable for commercialized production.

The invention relates to a preparation method of a photoelectrocatalytic oxidation catalyst for treating high-salinity wastewater. The photoelectrocatalytic oxidation catalyst is prepared by steps of utilizing porous Al2O3 as a carrier, loading active component TiO2 onto the carrier by means of liquid-phase deposition and then drying and calcining to prepare the photoelectrocatalytic oxidation catalyst. The prepared catalyst is in the shape of a porous cylinder, fluid and ultraviolet light can access the inside of the photoelectrocatalytic oxidation catalyst freely, and particles of the active component TiO2 are small in particle size and uniform in distribution.

The invention belongs to the field of organic synthesis of medicines, and concretely relates to a novel preparation method of a medicine terbutaline sulfate for treating bronchial spasm caused by bronchial asthma, chronic bronchitis, emphysema and other lung diseases. The synthesis route of the preparation method comprises the following steps: reacting 3,5-dihydroxybenzaldehyde with acetic anhydride to generate a compound I; reacting the compound I with trimethyloxosulfonium halide to generate a compound II; reacting the compound II with tert-butylamine to generate terbutaline; and salifying the terbutaline to generate the terbutaline sulfate. The method has the advantages of avoiding of dangerous chemical reagents, low price of adopted reagents, mild reaction conditions, and suitablenessfor industrial amplification.

The preparation process of hollow silica ball includes the following steps: adding alcohol solvent into ammonia water solution of polymer electrolyte in 3-500 g / L concentration, dropping silicon source precursor solution of 1.1-4.4 mol / L concentration in the speed of 0.05-0.2 ml and silicon source precursor / ammonia water volume ratio of 1 / 15 to 2, reaction in a sealed container at 10-40 deg.c for 2-24 hr, and washing and drying the product, with the ammonia water having concentration of 10-25 wt% and the volume ratio between alcohol solvent and ammonia water being 3 to 25. The preparation process of the present invention is simple and suitable for industrial production, and has mild reaction condition, no environmental pollution and high yield, and the obtained hollow silica ball is loose, has inner diameter of 10-250 nm and water thickness of 10-40 nm, and may be used as medicine carrier and catalyst carrier.