81results about How to "Facilitate industrial scale-up" patented technology

The invention belongs to the technical field of biological fuel cells, and discloses a phycomycetes microbial fuel cell and a preparation method and application of the phycomycetes microbial fuel cell. The phycomycetes microbial fuel cell comprises an anode chamber, a cathode chamber, a transverse diaphragm, an anode, a cathode and an outer circuit, wherein phycomycetes, a culture solution and a carbon source are respectively installed in the anode chamber and the cathode chamber. In the operation process of the phycomycetes microbial fuel cell, operation is conducted by repeatedly converting the electrodes; in the whole operation process, with the help of synergistic effects of the phycomycetes, the effect that azo dye pollutants are degraded efficiently is achieved; the electrodes are alternately used for degrading the azo dye pollutants, therefore, the physiologically toxic effect on current-producing bacteria by the azo dye pollutants is eliminated, and continuous efficient current generation is realized; the phycomycetes is adopted as a biocatalyst for both the anode and the cathode, no metal catalyst is used for modification, no exogenous artificial mediator is added, aeration is not needed, therefore, the construction and operation cost of the microbial fuel cell is lowered, the sustainability of the microbial fuel cell is enhanced, and industrial amplified production of the microbial fuel cell can be conducted beneficially.

The invention discloses a method for separating 2,4-Dichlorophenol and 2,6-Dichlorophenol, comprising the following steps: dissolving the mixture of the 2,4-Dichlorophenol and the 2,6-Dichlorophenol in an organic solvent, adding alkalic organism, stirring and reacting at the temperature of 40-80 DEG C until the reaction liquid is clear, cooling the reaction liquid after the reaction is finished, standing and precipitating crystals, filtering to obtain a filter cake A and a filtrate A, and retaining the 2,4-Dichlorophenol in the filtrate A, wherein the filter cake A is a crude product of the 2,6-Dichlorophenol; the alkalic organism is triethylene diamine, morpholine, piperazidine, ethylpiperazine or methyl piperazine; and the organic solvent is ethanol, methanol, acetone or ethyl acetate. The invention has higher separation efficiency and only need crystallization for one time; the total yield of the 2,4-Dichlorophenol is 90-95%, and the purity thereof is 96-99%; the total yield of the 2,6-Dichlorophenol is 77-89%, and the purity thereof is 90-99%; and the invention has the advantages of simple operation, good repeatability and low implementation cost, and is favor of industrialized scale-up.

The present invention relates to a preparation method of a catalyst for isobutylene preparation through oxidative dehydrogenation of isobutane, wherein the catalyst comprises a first active component, a second active component, a first auxiliary agent, a second auxiliary agent and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and isobutylene selectivity improving.

The invention belongs to the technical field of medicines and in particular relates to a dexlansoprazole crystal form and a preparation method. A dexlansoprazole crystal with good heat stability is obtained through a method comprising the steps of culturing a crystal nucleus and slowly crystallizing. The preparation method comprises the following steps: dissolving an anhydrous dexlansoprazole crude product into acetone and de-coloring with active carbon; dropwise adding one part of isopropyl ether at 20 DEG C to 25 DEG C; stirring and culturing a crystal; culturing the crystal nucleus; then slowly dropwise adding the other part of isopropyl ether; filtering and drying to obtain a product. The product prepared by the method provided by the invention is good in heat stability and slow in degradation speed; the problems of degradation, color change and the like during a storage process of the dexlansoprazole are effectively solved; the solubility and dissolvability of the product prepared by the method are also extremely improved and the bioavailability is improved.

The invention discloses a method for separating a mixed methyl cyclohexane diacid, comprising the following steps of: (1) dissolving the mixed methyl cyclohexane diacid into a resolving solvent; adding an organic amines compound; heating and refluxing to completely react under stirring; cooling reaction liquid to 0-30 DEG C after reaction; standing for separating out crystals; filtering to obtain a filter cake A and filter liquor A, wherein a 4-methyl-1, 2-cyclohexane diacid is retained in the filter liquor A, the filter cake A is a rough crystal of a 3-methyl-1, 2-cyclohexane diacid, the organic amines compound is 2-aminopyridine, 3-aminopyridine, pyridine and 2-methylpyridine or 3-methylpyridine, and the resolving solvent is methanol and ethanol or water. Compared with the prior art, the invention has higher resolution efficiency, needs only once crystallization, can achieve the yield coefficient of each acid between 80 percent and 95 percent and the purity between 93 percent and 99 percent, has simple separation method, low implement cost and good repeatability and is beneficial to industrial scale-up.

The invention belongs to the field of preparation and application of special separation membrane materials and provides a preparation method of a hollow polyimide fiber membrane applied to sulfide adsorption. The preparation method of the polyimide hollow fiber membrane applied to the sulfide adsorption comprises the following steps: dissolving dianhydride and diamine in a polar organic solution to prepare a polyamide acid solution, subsequently adding particles with an adsorption function to obtain a spinning raw solution; spinning the raw solution into a nascent hollow fiber membrane by virtue of dry and wet spinning processes; and finally carrying out thermal imidization treatment to obtain the hollow polyimide-based fiber membrane. The preparation method of the hollow polyimide fiber membrane applied to the sulfide adsorption is simple and easy in process, simple to operate, relatively low in cost and suitable for being used in large-scale industrial production; by virtue of desulfurization experiment testing, the adsorption capacity of the membrane can reach over 13.0mgS/g.

The invention provides a modified solid electrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) carrying out surface impurity removal treatment on the solid electrolyte, and fixing; (2) depositing metal lithium on the surface of the solid electrolyte to obtain the solid electrolyte deposited with the metal lithium; and (3) carrying out nitridation treatment on the solid electrolyte deposited with the metal lithium obtained in the step (2), and then carrying out isostatic pressing cold pressing treatment to obtain the modified solid electrolyte. Metal lithium is deposited on the surface of the solid electrolyte, and then nitridation treatment is carried out on the metal lithium, so that a Li3N protection layer is generated on the surface of the electrolyte in situ; li3N has high ionic conductivity and low electronic conductivity, is an ideal interface modification protective layer, and can effectively improve the stability between the electrolyte and lithium metal.

The present invention relates to a preparation method of a catalyst for ethylene preparation through oxidative dehydrogenation of ethane, wherein the catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and ethylene selectivity improving.

The invention relates to a preparation method of a catalyst for alternative natural gas preparation through synthesis gas methanation. The catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the catalyst has characteristics of high reaction activity, metal consumption reducing, and methane selectivity improving.

The invention discloses a tribonema culture device and method. The culture device comprises a raceway pond, circulating water wheels, a carbon supplement device and hairbrush strips; the raceway pondis of a long circular shape, one circulating water wheels is arranged at each of the two ends of the raceway pond, the hairbrush strips are liftably arranged in the raceway pond, so that tribonema adheres to the hairbrush strips to grow, the rotation speed of the circulating water wheels is 7-8r/min during cultivation, tribonema on the hairbrush strips is harvested by adopting a mode of scissor cutting after growing to the required length, and the length of remaining tribonema extending from the hairbrush strips is kept at 10mm or above after tribonema is harvested, thereby achieving the low-cost and high-density cultivation of tribonema, the produced tribonema is easy to separate and collect, the manpower is saved, the tribonema can be repeatedly cultured, the industrial amplification isfacilitated, and the method is suitable for lager-scale industrial production.

The present invention relates to a synthetic gas methanation catalyst preparation method, wherein the catalyst comprises an active component, an auxiliary agent, and a carrier. The preparation method comprises: preparing a catalyst precursor A, and reducing the catalyst precursor A; dissolving an auxiliary agent precursor in water, and uniformly mixing with a furfural aqueous solution; adding the obtained mixture and the catalyst precursor A to a high pressure reaction kettle, adding a solution C, and carrying out a reaction; and treating and separating the obtained solid-liquid mixture, filtering the obtained solid sample, drying, and calcining to obtain the catalyst. According to the present invention, the waste residue oil hydrotreating catalyst is completely utilized so as to save the cost; and the prepared catalyst has characteristics of high reaction activity, metal consumption reducing, and methane selectivity improving.