46results about How to "Realize large-scale industrialized continuous production" patented technology

The invention relates to a method for extracting sea buckthorn seed oil through a subcritical fluid method. The method for extracting the sea buckthorn seed oil comprises the following steps: (1), juicing fresh clean sea buckthorn fruit to obtain seeds, drying the seeds in shade under a room temperature, selecting the seeds, smashing the selected seeds, and screening the smashed seeds to obtain a raw sea buckthorn seed material; (2), grinding and drying the raw sea buckthorn seed material; (3), putting the ground dry sea buckthorn seeds and an extracting agent into a subcritical fluid extraction device, so as to obtain an extract; and (4), separating the extract through a pressure reducing and temperature increasing method to obtain an extraction liquid, and standing the extraction liquid under the room temperature to obtain the sea buckthorn seed oil. The method has the advantages that the production cost is effectively reduced; the separation time is shortened; the solvent consumption and the energy consumption in the technological process are reduced; the technological process is simple; the operability is high; the extraction efficiency is high; environmental protection and zero contamination are realized; the security and the repeatability are good; and large-scale industrialized continuous production can be realized.

The invention discloses a centimeter wave-millimeter wave compatible absorbing composite material. The material has a five-layer structure including a substrate which is an irregular surface made of a random material, a topmost first layer which is composed of a W-shaped hexagonal ferrite absorbent and a acrylic resin adhesive, a second layer which is composed of a carbonyl iron powder absorbent and an epoxy resin adhesive, a third layer which is composed of an Fe85Si1Al6Cr8 nanocrystalline sheet-like absorbent and an epoxy resin adhesive, a fourth layer which is composed of a polycrystallineiron fiber absorbent and an epoxy resin adhesive, and a fifth layer which is composed of a short carbon fiber/carbon black mixed absorbent and a polyurethane adhesive. The material can well solve theproblem of poor centimeter wave-millimeter wave compatible absorbing performance in the prior art, and is a composite wave-absorbing material compatible with electromagnetic waves of centimeter wave-millimeter wave bands.

The invention discloses a production method of a continuous polymerization melt direct-spinning functional polyarmide fiber, and the functional polyarmide fiber. The production method comprises the steps that a functional powder slurry pre-dispersion material prepared from water, caprolactam and functional powder in a blended mode is continuously delivered to a functional powder slurry multi-stagegrinding device to be ground and dispersed; obtained functional powder slurry is evenly mixed with a caprolactam melt and a catalyst through a dynamic mixer, and after the temperature of a mixture isregulated by a heat exchanger, the mixture enters a hydropysis reactor to be subjected to a ring-opening reaction; after excess water in an obtained functional caprolactam oligomer melt is removed byan oligomer melt dehydrator, the obtained functional caprolactam oligomer melt enters a front polymerization reactor to be subjected to a polyaddition reaction; after residual water in an obtained functional polyarmide prepolymer melt is removed by a prepolymer melt dehydrator, the obtained functional polyarmide prepolymer melt enters a rear polymerization reactor to be subjected to a polycondensation reaction; and after a caprolactam monomer in an obtained functional polyarmide melt is removed by a thin film evaporative devolatilization system, the obtained functional polyarmide melt is directly conveyed to a spinning manifold to be spun, and thus the functional polyarmide fiber is obtained. The functional powder in the functional polyarmide fiber is highly evenly dispersed.

The invention relates to a method for extracting nitraria seed oil from subcritical fluid. The method comprises the following steps of: (1) squeezing juice of fresh and clean nitraria fruit, drying the obtained seed at room temperature in the shade and sequentially carrying out sorting, crushing and sieving to obtain nitraria seed raw materials; (2) milling and baking the nitraria seed raw materials to obtain treated nitraria seed; (3) carrying out continuous extraction through putting the treated nitraria seed and extracting agents into an extraction kettle of a subcritical fluid extraction device to obtain extracts; and (4) using a pressure reduction temperature rise method for separating the extracts to obtain extraction liquid and carrying out still standing on the extraction liquid at room temperature to obtain the nitraria seed oil. After the method is adopted, the production cost is effectively reduced, the extraction and separation time is shortened, the solvent consumption and the energy consumption in the technical process are reduced, in addition, the technical flow process is simple, the operability is high, the extraction efficiency is high, the environment is protected, the pollution is avoided, the safety and the repeatability are good, and the large-scale industrial continuous production can be realized.

The invention relates to a continuous lithium iron phosphate preparation device comprising a raw material system, a material conveying system, a pipe-type reaction device, a kettle-type reaction device, a reactions system pressure-adjusting system and a discharge system, wherein the raw material system is used for mixing a raw material solution; the material conveying system is used for continuously conveying the mixed raw material solution to the pipe-type reaction device; the pipe-type reaction device is used for enabling materials to be in plug flow conveying reaction state at the given time, the temperature and the pressure; the kettle-type reaction device is arranged at the back of the pipe-type reaction device and is used for enabling the materials to be in complete mixing flow reaction state at the given time, the temperature and the pressure and enabling the reacted product to be conveyed to the discharge system; and the reaction system pressure-adjusting system is used for adding a volatile solvent component to a reaction system to adjust system pressure so that the pipe-type reaction device and the kettle-type reaction device are maintained at the given pressure condition. The invention also relates to a continuous lithium iron phosphate preparation method.

The invention provides a continuous-phase-change sauce residue oil extraction method. According to the invention, a dried and crushed sauce residue raw material is placed into an extraction kettle; under a condition with a pressure constantly lower than an extracting agent critical pressure and a temperature constantly lower than an extracting agent critical temperature, the extracting agent is compressed into a liquid; the extracting agent flows through the extraction kettle with a certain flow rate, such that castor oil is extracted; the material is delivered into a resolution kettle; heating and pressure reducing are carried out, such that the extracting agent is changed into a gas phase; instant compression is carried out, the extracting agent is changed into liquid, and flows through the extraction kettle, such that the material is extracted again. The steps are repeated several times. The extracting agent is one of ethanol, propane, butane, high-purity isobutane, R134a, dimethyl ether, liquefied petroleum gas, and sulfur hexafluoride. The method provided by the invention has the advantaged of high efficiency, no solvent residue in product, and high aroma component retention rate of a supercritical extraction method. Extraction pressure and resolution pressure of the method are lower than those of supercritical extraction. The method also has the advantages of large extraction volume, large-amount batch production, low production cost, and the like of a conventional solvent extraction method.

The invention belongs to the field of functional polyester, and particularly discloses a preparation method of functional polyester. The preparation method of the functional polyester comprises the following steps: (1) mixing functional powder with dihydric alcohol, and then grinding the mixture to obtain functional powder slurry; (2) mixing terephthalic acid with dihydric alcohol, and then carrying out esterification reaction on the mixture to prepare a polyester oligomer; (3) mixing the functional powder slurry prepared in step (1) with the polyester oligomer prepared in step (2), depressurizing, and then devolatilizing to obtain a functional polyester oligomer; (4) performing pre-polycondensation reaction and final polycondensation reaction on the functional polyester oligomer obtainedin step (3) to obtain functional polyester; and adding a copolymerization modified monomer slurry in an esterification reaction process, wherein the copolymerization modified monomer slurry is prepared by taking the copolymerization modified monomer as a raw material. By the preparation method disclosed by the invention, high uniform dispersion of the functional powder in the functional polyestercan be realized, and the polyester product further has composite functions of cationic dyeing, disperse dye normal pressure dyeing, antibiosis, hydrophilicity, low melting point, high shrinkage, cotton imitation and the like.

The invention relates to a preparation technology of a centimetre wave-millimeter wave compatible absorbing material. The material is of five-layer structure, and a substrate is an irregular surface made of any material; the topmost layer is a first layer, and mainly consists of a W-shaped hexagonal ferrite absorbing agent and an acrylic resin adhesive; a second layer is composed of a carbonyl iron powder absorbing agent and an epoxy resin adhesive, and a third layer is composed of a Fe85Si1Al6Cr8 nanometer crystal thin absorbing agent and an epoxy resin adhesive; a fourth layer is composed of a polycrystal iron fibre absorbing agent and an epoxy resin adhesive; and a fifth layer is composed of a chopped carbon fiber, a sooty mixed absorbing agent and a polyurethane adhesive. A preparation process comprises the following steps: firstly, covering and preparing a bottom fifth-layer medium coating on the substrate; and then successively covering and preparing a fourth-layer medium coating, a third-layer medium coating, a second-layer medium coating and a first-layer medium coating, wherein the coating preparation of each medium coating is as follows: uniformly stirring a coupling agent, a diluting agent and the absorbing agent of each layer, standing, then adding the adhesive of each layer, uniformly stirring to obtain a paint, coating the paint, and curing, thus obtaining the centimetre wave-millimeter wave compatible absorbing material.

The invention discloses an evening essence B-casein phosphopeptide-chitosan nano particle, a preparation method and applications thereof. The preparation method comprises the following steps: preparing a CPPs solution, a CS solution, and an OEB solution, adding three solutions in a certain sequence, evenly mixing, controlling the mass percentage of CPPs and OEB of the final solution and the total concentration of CPPs, CS, and OEB of the solution, adjusting the pH value of the system to obtain nano spheres; then adding genipin to fix the nano spheres to obtain nano suspension, and subjecting the nano suspension to centrifugation and drying to obtain the evening primrose essence B-casein phosphopeptide-chitosan nano particles. The nano particle has the advantages of adjustable particle size, high embedding rate, pH responding property, green, energy saving, safety, stomach acid resistance, and sustain-released function, and can be widely used in the fields such as pharmacy, food, healthcare product, and the like.

The invention discloses functional polyamide and a continuous production method thereof. The method comprises the following steps: continuously conveying a functional powder slurry pre-dispersion prepared from water, caprolactam and functional powder by blending to a functional powder slurry multistage grinding device for grinding and dispersing; uniformly mixing obtained functional powder slurry,caprolactam melt and a catalyst by a dynamic mixer, adjusting the temperature by a heat exchanger, and feeding the mixture into a hydrolysis reactor for ring opening reaction; removing excess water from obtained functional caprolactam oligomer melt by an oligomer melt dehydrator, feeding the melt into a prepolymerization reactor for addition polymerization reaction; removing residual water from obtained functional polyamide prepolymer melt by a prepolymer melt dehydrator, and feeding the melt into a post polymerization reactor for polycondensation reaction; performing granulation, extractionand drying on obtained functional polyamide melt sequentially to obtain functional polyamide chips. Functional powder in functional polyamide continuously produced with the method is highly uniformlydispersed, and functional polyamide is suitable for producing products such as high-quality fibers and films.

The invention provides industrial continuous production equipment for polycarbonate polyether polyol. The industrial continuous production equipment comprises a CO2 adding device, an epoxide adding device, a chain transfer agent adding device, a catalyst adding device, a premixing kettle and a straight-tube reactor; the premixing kettle is used for mixing epoxide, a chain transfer agent, a catalyst and low-pressure CO2 to form a primary mixture, and enabling the primary mixture to be in a to-be-reacted state; the straight-tube reactor is used for mixing the primary mixture and high-pressure CO2 to form a secondary mixture and enabling the secondary mixture to be in a synthetic reaction state; a straight-tube accommodating cavity is formed in the straight-tube reactor, a reaction mixing device is arranged in the straight-tube accommodating cavity, and the bottom of the straight-tube reactor is communicated with the premixing kettle and the CO2 adding device; a feeding pump used for pumping the primary mixture from the bottom of the straight-tube reactor is further connected between the premixing kettle and the straight-tube reactor, and the straight-tube reactor is vertically or obliquely arranged. According to the industrial continuous production equipment, the amplification effect can be avoided or relieved, and the reaction time is shortened.

The invention discloses a preparation system and a preparation method of biodegradable copolyester and the copolyester thereof. The preparation system comprises an esterification system and a polycondensation system which are connected in sequence, and a bubbling type reactor is further arranged between the esterification system and the polycondensation system. Materials flowing out of the esterification system are subjected to deep esterification and pre-polycondensation through the bubbling type reactor and then are fed into the polycondensation system. According to the preparation system of the biodegradable copolyester, the simultaneous occurrence of efficient deep esterification and melt polycondensation of aliphatic-aromatic copolyester ester is realized, and the esterification time of aliphatic-aromatic binary acid slurry is greatly shortened; the aliphatic-aromatic copolyester prepolymer meeting the requirements of a subsequent final polycondensation reaction is prepared; the aliphatic-aromatic copolyester continuously produced by using the system has the characteristics of good biodegradability, low terminal carboxyl group content and good hue.