30results about How to "Production can be scaled" patented technology

The invention discloses a glass microballoon manufacturing device comprising a furnace body (1) and a waste gas treatment device, wherein the furnace body (1) is formed by air-tight connection of an upper part and a lower part, the upper part of the furnace body is of a cubic shape, a waste gas emission port (4) is arranged at the top of the upper part, one or more injection-type burners (2) are horizontally installed on the side of the upper part, a preheating air pipe (14) is arranged in the upper part, the lower part of the furnace body is of a square conical shape, and one or more microballoon collectors (3) are arranged at the bottom of the lower part. According to the glass microballoon manufacturing device and the preparation method thereof provided by the invention, the furnace body which adopts the cubic structure enlarges the cooling space; the horizontally installed injection-type burners and the preheating air pipe arranged in the furnace body can give full play to the heat value of fuel, thus reducing energy source waste, saving energy and reducing emission; TiO2 and Al2O3 with relatively lower costs are adopted, the refractive index of the product is greater than or equal to 1.93; and the glass microballoon manufacturing device and the preparation method thereof have the advantages of reducing devitrification, improving the cooling velocity, having good product quality, improving the utilization ratio of raw material, being capable of large-scale production, and the like.

The invention discloses the application of a nano-carbon-supported single-atom palladium-based catalyst in the catalytic hydrogenation of nitrile compounds to prepare secondary amines, and belongs to the technical field of catalysts for catalytic hydrogenation of liquid-phase nitrile compounds. The monoatomically dispersed palladium-based catalyst can generate corresponding secondary amine compounds with high selectivity under mild conditions; the catalytic reaction conditions are: reaction temperature 45-90°C, hydrogen source is ammonia borane. In the catalyst of the present invention, the metal exists in a dispersed state of single atoms, which more effectively improves the utilization efficiency of the metal, so that the activity and selectivity of hydrogenation of nitrile compounds are obviously improved. Moreover, the atomically dispersed catalyst is easy to prepare and low in cost, and has good application prospects in the hydrogenation of nitrile compounds to prepare secondary amines.

The invention relates to a production method for rolling required stainless steel single side composite rolls through two times of manufacturing of composite billets. A base plate of carbon steel and a compound plate of stainless steel of a first composite billet are formed by welding baffle strips into a rectangular frame on a first base plate and putting a first compound plate into the rectangular frame, a second compound plate is laid after the first compound plate is coated with separant, a second base plate is laid on the second compound plate, the second base plate is welded to baffle strips, a hole is drilled between the base plates to install a vacuumized tube, rolling is carried out after leakage detecting and vacuumizing, the four edges of a rolled piece are cut off, and a single side composite plate is obtained for standby; in second billet compositing process, a carbon steel plate identical with the single side composite plate is manufactured, end bevels are formed in the carbon steel plate, pressure is exerted on a pressure platform to attach the carbon steel plate to the single side composite plate, full-length welding, drilling, vacuumized tube installing, leakage detecting, vacuumizing and rolling are carried out after steel wire rods are stuffed into the end bevels between the carbon steel plate and the single side composite plate, so far hot rolling of a stainless steel single side composite roll is finished, the thickness of the stainless steel single side composite roll is increased to 20 mm from 10 mm, guarantee is provided for a large diameter spiral welded pipe, the surfaces of compound layers are more compact and smoother, the product quality is improved, and the bonding strength and the mechanical property of a compound interface are improved.

The invention discloses a novel method for preparing ethanol metabolism-promoting polypeptide derived from corn protein. The method comprises: pretreatment of corn yellow powder raw material to remove starch; extraction of prolamin and glutenin; mixed enzymatic hydrolysis product of prolamin and glutenin preparation; the supernatant enzymatic hydrolyzate was freeze-dried to obtain the ethanol metabolism-promoting polypeptide derived from corn protein. The obtained product is used as the main functional component of the ethanol metabolism-promoting health-care product to reduce the damage of ethanol to the human body. The active peptide has been verified by the alcohol dehydrogenase (ADH) kit and the police alcohol blowing tester, and it is confirmed that the activity of alcohol dehydrogenase can be increased by 32%~45%. Compared with the peptide obtained from a single gliadin enzymatic hydrolysis product, increasing the proportion of gluten in the enzymatic hydrolysis raw material within a certain range can make the obtained crude polypeptide have a greater activation effect on alcohol dehydrogenase ADH and a faster metabolism of ethanol. The molecular weight of the target active peptide was generally lower than 1kDa as determined by gel chromatography analysis.

The invention relates to a process for producing a superfine high-purity quartz glass pipe for a high-temperature sensor, which is characterized by comprising the following steps of: finely selecting quartz blocks as raw materials, wherein the particle size of the quartz blocks is 20-30 mm, and the content of SiO2 is above 99%; sequentially carrying out soaking in hydrochloric acid, roasting, water quenching, mechanical pulverization, iron removal, soaking in mixed acid, high-temperature stirring and washing and high-temperature chloridization on the raw materials to obtain high-purity quartzsand; then throwing the high-purity quartz sand in a quartz furnace for smelting, pulling into a quartz glass pipe, and then scouring, cutting, trimming, ultrasonic cleaning and dehydroxylating so that a finished product is obtained. The quartz glass pipe produced and prepared by the process has the superfine and ultrathin features, has the characteristics of high-temperature resistance, molten steel and glass liquid-washing resistance, corrosive resistance, high heat transfer speed, good soaking performance, large strength, long service life, no bursting under shock heating and cooling condition, strong process operability, scale production and the like, and completely accords with the requirements of various performance indexes of the quartz glass pipe used as an outer protective pipe of the high-temperature sensor.