298results about How to "Easy to operate industrially" patented technology

The invention relates to a novel highly-abrasion-resistant, anti-corrosion and anti-static coating and a preparation method thereof. The coating comprises basic thermosetting resin and a filler, wherein the basic thermosetting resin is modified resin for coatings; the filler is formed through blending and combining one or more of a carbon nano tube, carbon black, graphite, graphene, nano aluminum powder and conductive mica powder with one or more of quartz sand, glass flake, nano silicon dioxide, nano-molybdenum disulfide, aluminium oxide and modified montmorillonite. The coating is directly smeared or sprayed on the surface of a metal outer shell of electronic and electrical equipment, the equipment can be effectively prevented from being corroded by the environment for a long time, and the influence of pad points and electromagnetic interference on the safe, normal and stable use of the equipment is prevented.

The invention provides a method for preparing composite hydrogel through modifying bamboo shoot leftovers and an application of the composite hydrogel. An adsorption material is prepared by the steps of extracting cellulose from the bamboo shoot leftovers, then modifying by sodium chloroacetate, carrying out epoxy chloropropane cross-linking, followed by carrying out inverse suspension polymerization, and finally carrying out freeze drying. The prepared hydrogel beads are used as a bio-adsorbent, methylene blue is used as a dye model molecule, an adsorption effect on methylene blue is studied, and a theoretical foundation is laid for adsorption and sustained release of the hydrogel. The novel composite hydrogel prepared by utilizing the bamboo shoot processing waste leftovers is rich in raw material sources and low in cost, can achieve waste utilization, and promotes recycling economy; and the prepared hydrogel can be applied to adsorption of dye wastewater and adsorption and sustained release of a model drug, reduces pollution of bamboo shoot leftover arbitrarily discarding on the environment, and can play a certain role in promoting green development of ecological resources.

The invention relates to a surfactant used in the production of washing powder, in particular to a method for producing sodium fatty acid methyl ester sulfonate, which solves the problem that the prior art cannot realize continuous, stable industrialized mass production. Hydrogenated palm-methyl stearate is adopted as material, and is sulfonated by SO3 gas on a multi-tube film reactor, steps, such as aging, reesterification, dealcoholization, neutralization, bleaching and vacuum drying, are then sequentially carried out, so that sodium fatty acid methyl ester sulfonate product is obtained, the content of MES is more than 80 percent, the content of disodium salt is less than 5 percent, the content of free oil is less than 2.5 percent, the content of sodium methyl sulfate is less than 8 percent, and color is less than 60 klett(5 percent A.M). Because highly selective catalyst is added in the aging process, the production of deep-colored by-product is reduced; because the reesterification reaction and the bleaching reaction are separately carried out, the safety of reaction is enhanced, and the consumption of methanol as solvent is greatly reduced; because vacuum dealcoholization is carried out before sulfoacid neutralization, industrialized operation can be easily carried out, and meanwhile, the safety problem of methanol in the subsequent bleaching step is eliminated.

The invention discloses a method for degrading an epoxy resin carbon fiber composite material. The method comprises the following steps of: preparing a reaction solution by adding a metal salt into water, methanol, ethanol or propanol which is taken as the solvent; dipping the epoxy resin carbon fiber composite material in the reaction solution, and carrying out degradation at 160-240 DEG C for 1-20 hours; and separating and recycling the metal salt and obtaining the epoxy resin degraded product and the carbon fiber. The method disclosed by the invention has the advantages of simple process, mild condition, low cost and low damage on carbon fiber strength.

The invention discloses modified titanium dioxide hydrosol and a preparation method thereof. The titanium dioxide hydrosol is prepared by the following steps: by taking butyl titanate as a raw material, by adopting a sol-gel technology, taking deionized water as a solvent and taking glacial acetic acid as a hydrolysis inhibitor, doping ethyl orthosilicate, a rare earth compound and a nitrogen compound without using an organic solvent and a strong acid, so as to perform three-element co-doped modification of three types including a compound semiconductor, rare earth metal ions and nonmetallic elements on the titanium dioxide sol. According to the titanium dioxide hydrosol, an ultraviolet-resistant function of titanium dioxide is guaranteed, the photocatalytic activity and efficiency of the titanium dioxide under visible light are improved, and the antistatic property is improved, so that multifunctional finishing agent is formed.

The invention discloses a preparation method of high-stability injection linezolid, wherein the preparation method comprises the steps: with linezolid as a raw material, adding water, glucose and sodium dihydrogen phosphate, dissolving, and then adjusting the pH with phosphoric acid or sodium dihydrogen phosphate to make the pH in a certain range. The content of impurities in a linezolid injection liquid is reduced, the product quality is improved, and the shelf life is extended.

The invention discloses a melon and fruit processor. According to the processor, a guide rail is installed above a peeling system, a kernel removal system and a cutting system. A fixed device is hung on the guide rail in an inverted mode to form movable connection. A first conveying belt, a first rotary motor, a second rotary motor, a third rotary motor, a first stepping motor and a second stepping motor are connected with a controller through wires separately. A pressure sensor and a scanning device are installed at the initial end of the first conveying belt and are connected with the controller through wires separately. The processor is convenient and quick to use, intelligent control is used for melon and fruit processing, and the processor is very novel, high in efficiency, wide in application range and suitable for families and restaurants. Eating becomes more tasteful, life quality is improved, and the processor is the Gospel for people who like to eat melons and fruits; intelligent management is achieved, and industrial operation and large-scale operation are convenient.

The invention provides a method for preparing diethylaminoethanethiol. The method comprises the steps that 1, a part of pre-heated and liquefied ethylene carbonate with the amount being 0.2-0.7 time of the total feeding amount of ethylene carbonate is added and stirred, the temperature is controlled to be 40-70 DEG C, then thiocyanate is added, the temperature is quickly increased to 75-105 DEG C,thiirane generated by reactioni s collected through a condensation system and a gas-liquid separator, meanwhile, remaining ethylene carbonate with the temperature of 45-85 DEG C starts to be added dropwise, the temperature is controlled to be 80-110 DEG C in the dropwise adding process, the temperature continues to be increased to 130-140 DEG C after dropwise addition, and the reaction is finished until fractions cannot be evaporated; 2, thiirane and diethylamine are subjected to closed reaction and are gradually heated to 110-130 DEG C, the pressure of 0.3-0.7 MPa is kept for 0.5-1.5 h, andthe reaction is finished. The method avoids the outrush risk is avoided, the reaction time is short, the quantity of generated impurities is small, the yield of the obtained product, namely diethylaminoethanethiol, reaches 98% or above, and the gas-phase detection purity of the product is 99% or above.

The invention relates to a fabricating method for fabricating superfine fiber by flash vaporization, of which the process is: polymers and ionic liquid are put into an autoclave according to a proportion of 10g of polymer to 5-20ml of ionic liquid and then is evenly stirred; then the standing pretreatment lasts for 0.5-3 hours under normal temperature so as to swell the polymer to be viscous liquid; polymer is added into the solvent in a ratio of 10g/50-200ml and is stirred for 20-30min at the temperature of 150-350 DEG C and the pressure of 5-25MPa; after fully dissolving, a feeding control valve of the autoclave is opened so as to lead the filature to eject from a spinning nozzle to form the superfine fiber; devillication is automatically carried out; three-dimension network superfine fiber is formed on a receiving device by solidification; the polymer is polyolefine, polyester or polyvinylidene fluoride; the ionic liquid is 1-butyl-3-methyl-iminazole chloride or 1-allyl-3-methyll-iminazole chloride; and the solvent is 1, 2-dichloroethane, trichloromethane or cyclohexane.

The invention relates to a method for preparing paeoniflorin, which is simple in operation and low in equipment investment. The method comprises the following process steps: a raw material containing paeoniflorin is placed into microwave extraction equipment and added with water for microwave extraction; filtrate is collected and filtered, so that the filtrate passes through a macroporous absorbent resin column for sample loading, water is used to elute impurities first, 20 to 80 percent ethanol is used for elution, ethanol eluate is collected, and the ethanol is decompressed, reclaimed and concentrated; the concentrated liquid is added into a chromatography column filled with active carbon, and then eluted by water; and eluate is collected, concentrated by a reverse osmosis membrane and dried to obtain the paeoniflorin. The method has the advantages of lowering production cost, improving product quality and facilitating industrialized operation.

The invention provides a method for modifying a carbon porous material, characterized in that by applying a high pressure pulse voltage on two opposite plate electrodes and inserting an electrolyte plate which has a high dielectric constant and a compact structure and has an area that is slightly larger than the size of the plate electrodes between the two opposite plate electrodes, a uniform discharge plasma reaction zone is formed between the plate electrodes; mixed gasses containing oxygen are uniformly mixed at normal temperatures and pressures, the mixed gasses are subject to ionization activation by the plasma reaction zone to generate a plurality of oxygen-containing plasma gasses, after gas distribution is carried out, the gasses vertically flow through a pre-cleaned carbon porous material in the thickness direction to react to obtain the activated carbon porous material. The method has the advantages of environmental protection, low cost, mild treatment conditions, easy control of function group quantity, and outstanding improvement of the activity of the electrode material, and the method can realize gradient treatment, can reduce the area resistance of the contacting surface of the porous material and the bipolar plate, so as to increase the battery efficiency. The method uses devices, thus the method is easy for industrialized operation.

The invention discloses a CO gas-phase oxidative coupling oxalate synthesizing palladium catalyst reactivating method in coal ethylene glycol production technical synthesizing processes. The method comprises four steps of baking at high temperature CO gas-phase oxidative coupling oxalate synthesizing palladium catalyst of Pd/a-Al2O3 to remove impurities like organic matters and carbon carried by carriers, and converting palladium on the catalyst into palladium oxide; reacting the catalyst with acid to convert the palladium oxide into soluble palladium salt, and together drying and baking the reacted solution and the carriers to redistribute and load palladium products on the carriers; performing reduction treatment to obtain reactivated palladium catalyst of Pd/a-Al2O3. The reactivated catalyst can restore the quality of fresh catalyst. The CO gas-phase oxidative coupling oxalate synthesizing palladium catalyst reactivating method can effectively reactivate deactivated palladium catalyst to obtain the catalyst excellent in active indexes.

The invention relates to the field of the synthesis of vitamin C derivatives, and in particular relates to a synthesizing method of vitamin C ethyl ether. The method comprises the following steps of: reacting vitamin C as an initiative raw material and dimethoxy propane as a reactant, thereby generating (R)-3,4-dyhydroxyl-5- [(S)-2,2-dimethyl-1,3-dioxolane-4-yl] furan-2(5H)-ketone; next, adding alkali and an alkylation reagent, thereby generating (R)-4-ethyoxyl-3-hydroxyl-5-[(S)-2,2-dimethyl-1,3-dioxolane-4-yl] furan-2(5H)-ketone; and removing a protecting group, thereby generating the vitamin C ethyl ether. According to the method, the reactions in the three steps can be finished in the same kettle, so that the industrialized operation is simplified greatly; and a large number of organic waste liquids cannot be generated. As a result, the total yield in the three steps is improved to 50%-53.4%.

The invention discloses a printing method of a prolivon blended fabric. A soaking and dehydration pretreatment process after secondary water washing is used, a special printing treatment process is used, self-blended improved dye is adopted, and finally, the prolivon blended fabric is obtained through ageing fixation, softness sizing and shrunk finish processes. The printing method has the advantages that the printing effect is good, the color fastness and the rubbing fastness are high, the processes are simple, the industrial operation is easy, and the operation production efficiency and the product quality are improved.

The invention discloses a method for preparing a fluorescent material, namely a method for synthesizing Gd2O2S: Tb fluorescent powder and a flux composition used by the method. A co-precipitation method is adopted to prepare a precursor, and then the Gd2O2S: Tb fluorescent powder is prepared through a high-temperature solid-phase reaction. A flux growth method used by the method can reduce the growth temperature of crystals, and is easy for industrialized operation; the selected flux composition can remarkably improve the crystal shape and particle size distribution of the fluorescent powder; the obtained crystals have integral structures and less defects; and the method reduces the synthesis temperature of the high-temperature solid-phase reaction of the Gd2O2S: Tb fluorescent powder, improves crystal structures and the particle size distribution of the fluorescent powder, and ensures that the luminous brightness and service performance of the fluorescent powder are further improved.

The invention discloses a SSZ -13 molecular sieve preparing method comprising the steps of (1) evenly mixing and putting N,N,N- trimethyl adamantane ammonium hydroxide and crystal growth agent into high-pressure reaction kettle, then adding silicon source, aluminium source and water successively into it and obtaining initial gel after mixing; (2) crystallizing the initial gel obtained in step (1) under 155-175oC for 17-72 hours and obtaining crystallized product; (3) centrifugalizing the crystallized product obtained in step (2) to obtain filter cake and filtrate, washing the obtained filter cake by deionized water to pH 7-8, then drying it for 10-13 hours under 100-120oC to obtain the SSZ -13 molecular sieve; the SSZ -13 molecular sieve preparing method in the invention may realize the free modulation for partical size of SSZ -13 molecular sieve from 0. 3-17Mum through adding crystal growth agent; the addition of crystal growth agent in the invention makes more even dispersion of molecular sieve crystal.

The invention relates to a metal-coated MFI hierarchical pore structure packaging catalyst and a packaging method and application thereof. Micropores and mesopores are contained in the pore channel structure of the packaging catalyst, the N2 adsorption-desorption curve of the packaging catalyst has an adsorption-desorption hysteresis loop under the condition that the relative pressure p/p0 is 0.1-1.0, and the particle size of metal nanoparticles in the packaging catalyst is 1-10 nm. In the preparation process of the packaging catalyst, the MFI structure molecular sieve is modified, the packaging of the metal nanoparticles and the reaming of the MFI structure molecular sieve are realized in one step, and the crystallinity of the molecular sieve parent is not reduced in the preparation process so that the problems of non-uniform distribution, non-uniform particle size, large particles and easiness in migration, agglomeration and loss of the metal nanoparticles in the catalyst prepared bythe traditional wet impregnation method are solved; meanwhile, high molecular sieve crystallinity is maintained through broaching treatment, and the diffusion performance is remarkably improved.

The invention discloses a method for synthesizing a dimethyl diallyl ammonium chloride cationic monomer. In the method, a change is made to the conventional feeding mode that dimethylamine and allyl chloride are fed according to a ratio of 1:1, and the feeding mode that dimethylamine and allyl chloride are fed according to a ratio of 1:1 in a first stage is divided into two steps on the basis of the conventional one-step method, wherein in the first step, dimethylamine and allyl chloride are fed first according to a ratio of 1:0.5; and in the second step, allyl chloride and sodium hydroxide are fed according to a ratio of 0.5:1. After reaction for a certain time period, allyl chloride in the same amount is dripped continuously and thus the cationic monomer product is obtained. The cationic monomer product is distilled under reduced pressure to remove volatile impurities, sodium chloride is removed by suction filtration, an alkali is added to remove involatile impurities, and thus, thehigh-purity dimethyl diallyl ammonium chloride cationic monomer is obtained. In the invention, the dimethylamine loss caused by volatilization at normal temperature is avoided, the reaction is performed under a low pH value condition, the generation of impurities is reduced, and thus, high-purity cationic monomer is obtained.