7results about How to "Increase output ratio" patented technology

The invention discloses a preparation method of a catalyst for synthesizing pyridine base, which comprises the following steps: mixing bismuth nitrate pentahydrate, cobalt nitrate hexahydrate and cadmium nitrate tetrahydrate to prepare a deionized water solution, regulating the pH value to 5 with nitric acid, dipping an H-ZSM-5 zeolite molecular sieve in a salt solution, continuously stirring, preserving heat, naturally cooling, washing, drying, and calcining at high temperature to obtain the catalyst for synthesizing pyridine base. And uniformly mixing the modified molecular sieve with the binder of the remaining components, carrying out spray drying, continuing high-temperature calcination, filling the formed catalyst into a fluidized bed reactor, and carrying out activity evaluation by adopting an aldehyde ammonia condensation process. According to the method, the novel catalyst is prepared by loading bismuth, cobalt, cadmium or other metal oxides on the ZSM-5 type zeolite molecular sieve, the reaction is carried out under the aldehyde ammonia synthesis process condition, the yield of pyridine in the pyridine base is increased, the yield ratio of pyridine to 3-methylpyridine can be increased to 20: 1, and the total yield of the pyridine base is kept to be 91.7% or above.

The invention relates to a double-low-temperature-heat-source negative-pressure hot-trap multi-effect crude methanol rectification device and a process method. The first process is a double-low-temperature-heat-source negative-pressure hot-trap five-tower reverse triple-effect negative-pressure process and comprises a pre-rectifying tower, a vacuum rectifying tower, a normal-pressure rectifying tower, a high-pressure rectifying tower and a methanol recovery tower which are connected in sequence. The connection sequence of the normal-pressure rectifying tower and the high-pressure rectifying tower in the first process is changed, the second process is a double-low-temperature heat source negative-pressure hot trap five-tower mixing triple-effect negative-pressure process, and steam at the top of a pre-rectifying tower supplies heat to a first reboiler of a vacuum rectifying tower. And steam at the top of the normal-pressure rectifying tower supplies heat to a reboiler II of the vacuum rectifying tower. And a gas phase at the top of the high-pressure rectifying tower supplies heat to the pre-rectifying tower reboiler and the normal-pressure rectifying tower reboiler respectively. The two processes can achieve the remarkable energy-saving effect of the methanol rectification process flow, the circulating water saving amount is about 50%, and the method is suitable for arid and water-deficient areas, and meanwhile is suitable for medium and small-scale production expansion of methanol rectification with the original production capacity being 35% or below and crude methanol treatment with the high ethanol content.

The present application relates to the field of plant tissue culture technology, and particularly discloses a lily stem cell abundance ex vivo regulation method. The lily bulb is used as the starting material, stem cell magnitude amplification and regulation culture can produce lily tissue organ materials with high stem cell abundance. The present application provides sterile lily materials with high stem cell abundance, which has the characteristics of strong regenerative ability, high proliferation rate, etc., is the basis for protoplast preparation and high-efficiency regeneration, and is suitable for different lily varieties, and provides technical support for cell engineering breeding, seedling scale breeding, etc.

The present invention relates to the technical field of production of oligo-walled carbon nanotubes, specifically to a production device of oligo-walled carbon nanotubes, comprising a fluidized bed reactor, a mixed flow distributor and a gas heating furnace, wherein the mixed flow distributor is arranged at the bottom end of the fluidized bed reactor, and is used to evenly distribute the reaction gas into the fluidized bed reactor, wherein the mixed flow distributor comprises a fixed guide seat, a guide cabin, an adjusting guide vane assembly and a main worm gear rotatably mounted on the inner side of the guide cabin, a flow divider is arranged at the top of the guide cabin, an introduction pipe is arranged at the bottom end of the fixed guide seat, and a guide bucket connected to the end of the introduction pipe in a one-to-one correspondence is arranged on the inner side of the fixed guide seat. In the present invention, through the cooperation of a plurality of flow dividers and adjusting guide vane assemblies, the optimized distribution and flow rate control of the reaction gas can be realized in the fluidized bed reactor, and the flow divider can effectively improve the uniformity of the gas flow rate and the controllability of the flow direction through a plurality of concentrically arranged guide tube structures, and can more evenly distribute the reaction gas, thereby improving the generation efficiency of the oligo-walled carbon nanotubes.

The invention discloses a laser manufacturing method of a diamond cutter wheel. The laser manufacturing method comprises the following steps: S1, cutting a diamond sheet from a diamond; s2, a required diamond ring sheet is arranged on the diamond thin sheet; s3, the diamond ring piece is trimmed; and S4, the diamond ring piece is fixed to the cutter base body. On diamonds in the same unit area, a plurality of diamond sheets can be cut, so that a plurality of diamond cutters can be manufactured, and the thickness of the diamond sheets is relatively thin, so that when cutting edges of the diamond sheets need to be trimmed, few diamond wastes are generated in the trimming process, and the trimming efficiency is improved. The production cost can be reduced, meanwhile, diamond waste generated in the machining process is reduced, and the output ratio is increased.

The present invention relates to the field of new material technology, and specifically to an ultra-high molecular weight plant fiber extraction and purification device, comprising an organic solvent tank, an extraction tower, an intermediate tank and a crystallization kettle connected in sequence, wherein the extraction tower is a longitudinal cavity structure, and a stirring and crushing cylinder is arranged axially inside; a Jiaolong transmission mechanism and a grinding and crushing mechanism are arranged inside the stirring and crushing cylinder; the extraction tower is provided with a solvent inlet, and the solvent inlet is connected to the liquid outlet of the organic solvent tank; the extraction tower is provided with a feed inlet; the extraction tower is provided with a discharge port, and the discharge port is connected to the crystallization kettle through the intermediate tank; the organic solvent tank is filled with ammonia and ammonium salt solvents. The present invention improves the output ratio of fibers in plant fibers by dissolving ammonia and ammonium salt solvents and coordinating a series of integrated crushing, grinding, stirring and dissolving steps, and achieves the purpose of increasing the molecular weight of plant fibers and facilitating subsequent purification.

The utility model relates to the technical field of intelligent planting, in particular to an internet of things field monitoring system, which comprises a management layer, an application layer, a processing layer, a network layer, a control system and a monitoring acquisition layer, an application layer is installed in the management layer, and the application layer receives information data sent by the monitoring acquisition layer through the processing layer and the network layer; the application layer respectively sends an operation instruction to the control system and the monitoring acquisition layer through the processing layer and the network layer; the control system receives an instruction sent by the application layer and controls the irrigation system in the monitoring acquisition layer to work; the monitoring and collecting layer receives instructions sent by the application layer and collects data information of weather, soil and insect conditions in a field, insect condition forecasting equipment, insect sex inducing equipment, a frequency vibration type insect killing lamp and a spore capturing instrument are arranged on the basis of an existing field monitoring system, insect pests in the field are trapped and killed, and meanwhile the field monitoring system is used for monitoring the insect pests in the field. And plant pathogens can be monitored and prevented, so that discovering and killing of field insect pests are realized.