52results about How to "No recycling issues" patented technology

A process for preparing the modified montmorillonite used to prepare composite polymer/montmorillonite nano-material with excellent properties features the direct reaction between powdered montmorillonite and organic modifier. Its advantages are no need of water and solvent, and no environmental pollution.

The invention provides a liquid nitrogen and ice particle abrasive material jet method and a generating device of the liquid nitrogen and ice particle abrasive material jet method. According to the liquid nitrogen and ice particle abrasive material jet method, liquid nitrogen fluid is poured into the generating device from the top, atomized water drops are poured into the generating device at the position below the top of the generating device through an atomization spray nozzle at the same time, the atomized water drops make contact with the liquid nitrogen fluid to form ice particles, after the ice particles and the liquid nitrogen fluid are mixed in the generating device, the mixed ice particles and liquid nitrogen fluid are jetted and flow out from a bottom outlet of the generating device to form liquid nitrogen and ice particle jet flow, and the liquid nitrogen and ice particle jet flow conducts jet flow operation on a treatment object. The liquid nitrogen and ice particle abrasive material jet method and the generating device of the liquid nitrogen and ice particle abrasive material jet method can achieve free control over the concentration of abrasive materials and are high in operation efficiency, clean and free of pollution.

The invention relates to the technical fields of oil deep processing and oil comprehensive utilization, and particularly discloses a preparation method for conjugated oil and application of the conjugated oil. The preparation method comprises the following steps: adding iodine into oil, reacting at the temperature of between 80 and 200DEG C for 0.5 to 5 hours under stirring in the nitrogen environment, and removing the iodine to obtain the conjugated oil. The preparation method is simple, the using amount of a catalyst is small, the conversion rate is high and solvents are not required to be added. Illegal cooking oil also can be taken as a raw material which is low in cost. The conjugated oil prepared can serve as a raw material for preparing fine chemicals, slow release fertilizers or controlled-release fertilizers.

The invention discloses an insecticidal solid micro-emulsifier containing triazophos, the components with the weight percent is as follows: 5 to 45 percent of triazophos, 5 to 25 percent of surfactant, 0 to 3 percent of binder, 0 to 5 percent of disintegrating agent and others a carrier. The invention also provides two preparation methods of the insecticidal solid micro-emulsifier, the first preparation method is that: 1) the raw materials are mixed with water evenly to prepare wet material; 2) the wet material is made into granules or pieces; 3) the granules or the pieces are dried; the second preparation method is that: 1) the raw materials are evenly mixed to form mixture; 2) the mixture is made into granules or pieces. The insecticidal solid micro-emulsifier of the invention not only can fully bring the biological activity of the effective contents into play and enhance the shelf life of the products, but also can prevent the pollution of chemical solvents to the environment since no chemical solvents are used.

The invention discloses a metal ion-doped titanium dioxide plate-type photocatalytic microreactor and a preparation method for catalyst thin films in the reactor. The reactor includes a stainless steel plate base; a groove on the stainless steel plate base is used as a single-channel reaction region; an inlet and an outlet respectively communicated with an inlet and an outlet of the single-channel reaction region are arranged on the stainless steel plate base, the inlet is communicated with an inlet pipeline, and the outlet is communicated with an outlet pipeline; one face, having the groove, of the stainless steel plate base and one face of a light-penetrating surface are each loaded with the metal ion-doped TiO2 catalyst thin film; the face, loaded with the catalyst thin film, of the light-penetrating surface is in opposite arrangement with the face, having the groove, of the stainless steel plate base, and has the periphery edges bonded and fixed by a sealing adhesive; an incident light source is arranged above the light-penetrating surface opposite to the groove. By using the device and the method, the light utilization efficiency is higher, and the degradation rate is increased to 2 times of the original degradation rate of an undoped TiO2 catalyst.

The solvent recovering process of aramid fiber polymer includes the steps of rinsing, neutralizing, dewatering, separating and purifying. While recovering pyridine, the aramid fiber solvent and assistant are re-used. The technological process is simple and easy in control, and has been applied practically.

The invention relates to an azeotropic method used in methyl acetate catalyzing rectification hydrolysis, mainly solving the problems of the prior methyl acetate catalyzing rectification hydrolysis process including complex flows and high energy consumption. The azeotropic method solves the problems better through adopting the technical proposal which comprises the following steps that: water and methyl acetate are mixed and fed in a catalyzing rectification tower from the top of the tower; the top of the tower is of total reflux and a mixture comprising methanol, acetic acid and water is obtained inside a tower bottom; the mixture is fed in a dealcoholization tower, and the distillate at the top of the dealcoholization tower is a methanol aqueous solution, while an acetic aqueous solution is obtained inside a tower bottom; the methanol aqueous solution is fed in an alcohol treating tower, and the distillate at the top of the alcohol treating tower is methanol, while waste water is generated inside a tower bottom; the acetic aqueous solution is fed in an azeotropic rectification tower which takes one sort of benzene, cyclohexane, isopropyl acetate and n-butyl acetate as an azeotropic agent; a biphase mixture of the azeotropic agent and water is obtained inside the top phase splitter of the azeotropic rectification tower with the water collected from the top of the tower and the azeotropic agent returned to the inside of the tower, while pure acetic acid is obtained inside the tower bottom of the azeotropic rectification tower. The azeotropic method can be used in the industrial production for reclaiming byproduct methyl acetate during producing polyvinyl alcohol.

The invention discloses a public place visitors flow rate monitor method based on RFID. The method comprises the following steps of setting up a visitors flow rate monitoring system based on RFID in a public place, and measuring a large amount of data according to the system; establishing a reference value and an extreme value for judging the current visitors flow rate; acquiring real-time data, which includes extracting the population coverage area based on LSI and obtaining population movement speed and the range detection data; and comparing the obtained data with a current standard to judge the current visitor flow situation. According to invention, RFID technology related equipment is high in cost performance, and has a characteristic of high environment resistance, so that investment cost can be substantially reduced; in a public place where a crowd do not carry cards embedded with electronic labels, the current flow of people can also be subjected to real-time monitoring; the LSI can be used to analyze the population coverage, so that not only can the current test results be verified, but also certain prediction can be made for short-term changes in the flow of people.

The present invention discloses semi-dry microwave treating process of preparing galactomanoligose. Galactomanoligose is prepared with galactomannan powder as material and through the steps of hydration, microwave treatment, water dissolving and neutralizing, membrane separating and drying. The process has short production period, high production efficiency, less pollution and low power consumption.

A method for preparing chitosan oligosaccharides through semi-wet method microwave treatment relates to a production method of chitosan oligosaccharides. The method comprises the following steps: using chitosan gelatine powder as raw material to perform hydration and microwave treatment, dissolving in water, neutralizing, and performing membrane separation, drying and the like to prepare chitosan oligosaccharides. The method does not consume organic solvent, thus the problem of recycling solvent does not exist and the pollution is low; and as the volume of the reaction system is from 1/3 to 1/5 of that of the solution method, the production efficiency is obivously increased. The method adopts microwave treatment to promote the polysaccharide degradation reaction, thus the heating effect is greatly increased. The radiation thermal effect of microwave and the non-thermal effect of microwave are utilized to prepare the product. Meanwhile, microwave is an efficient and clean energy, thus the speed of the chemical reaction can be greatly increased. The method also adopts the membrane separation mean, thus the refining efficiency is high and the product quality is controllable.

The invention belongs to the technical field of ceramic printing, and particularly relates to a colored ceramic ink powder for mass-polymerization architectural ceramic and a preparation method thereof. The ceramic ink powder comprises acrylate, polyethylene, 1,6-hexanediol diacrylate, an initiator, a ceramic pigment, a charge regulator and vapor-phase silicon dioxide. The preparation method comprises the following steps: proportionally mixing the components of the ceramic ink powder to obtain a mixed solution, injecting into a nitrogen-protected extruder, carrying out mass polymerization on the mixed solution in the extruder, extruding, and carrying out after-treatment. The prepared ink powder granules have regular shape and fine appearance; and the printed colored graph has the advantages of high high-resolution quality, high level contrast grade and high development density. The method does not use any solvent or abundant washing water, does not have the problem of subsequent solvent recovery, has the advantages of simple technique, energy saving and environment friendliness, lowers the cost, and has great market prospects and economic value.

The invention discloses a method for synthesizing 1-(2,4-dichlorophenyl)-3-methyl-4-difluoromethyl-1,2,4-triazole-5-ketone. The method comprises the following steps: with o-chloroaniline as a raw material, carrying out diazotization, reduction and salification so as to synthesize o-chlorophenylhydrazine hydrochloride, carrying out alkali neutralization so as to prepare free o-chlorophenylhydrazine, subjecting o-chlorophenylhydrazine, acetaldehyde, sodium cyanate and sodium hypochlorite to condensation, cyclization and oxidation reactions so as to generate 1-o-chlorophenyl-3-methyl-1H-1,2,4-triazole-5-ketone, subjecting 1-o-chlorophenyl-3-methyl-1H-1,2,4-triazole-5-ketone to salification, potassium fluorination and chlorination reactions so as to obtain 1-(2,4-dichlorophenyl)-3-methyl-4-difluoromethyl-1,2,4-triazole-5-ketone (a sulfentrazone intermediate). The synthetic method provided by the invention uses o-chloroaniline as the raw material, can synthesize an intermediate with small steric hindrance and few impurities, improves the yield, has the advantages of easily-available and cheap raw materials, mild reaction, simple and convenient operation and high safety, and facilitatesindustrial production.

The invention relates to the preparation method of 2,3-dichlor-1,4-naphthaquinones, which comprises, (1) charging sodium-1-naphthylamine-4-sulfonate into water, adjusting pH to 2-5 by charging acid, (2) charging 1-10% of iron powder, zinc powder, ferric salt, ferrous salt or zinc salt, (3) letting in chlorine, (4) cooling down the reaction product at normal temperature, filtering to obtain 2,3-dichloro-1,4-naphthaquinone crude product, finally recrystallizing with organic solvents to obtain product with the content higher than 98.5%.

The invention belongs to chemical equipment, and particularly relates to a membrane catalytic reactor. The membrane catalytic reactor comprises a feed port, a discharge port, a raw material chamber, a product chamber, a jacket, an electric stirrer and a catalytic membrane, wherein the electric stirrer is arranged above the raw material chamber; stirring paddles extend into the raw material chamber; the catalytic membrane is arranged between the raw material chamber and the product chamber; the feed port is formed on the top of the raw material chamber; the discharge port is formed at the bottom of the product chamber; and the jacket is arranged outside the raw material chamber, the catalytic membrane and the product chamber. By adopting the membrane catalytic reactor for performing esterification reaction, the energy consumption is low, and the reaction efficiency is high; the problems of separation and recovery of a catalyst are avoided, and the product cost is reduced; strongly acidic cation exchange resin powder is used as a catalytically active matter; polyethersulfone is used as a base material; a hybrid membrane which is prepared by a phase conversion method is a catalytic membrane which has higher efficiency for catalytic esterification reaction and has no problems of equipment corrosion, environment pollution and the like; and the membrane catalytic reactor has the advantages of simple equipment structure, high adaptability, easiness in control of process, convenience in operation and suitability for industrial implementation.

The invention provides a printed circuit board stripping waste liquid treatment method. The method comprises the following steps of: mixing waste liquid with water, and performing distilling; and separating nitric acid, and then carrying out post-treatment on a copper concentrated solution to prepare copper sulfate. With the method adopted, an alkali addition amount in a stripping waste liquid neutralization treatment process is greatly reduced, an organic solvent is not needed to add in the whole process, so that the post-treatment problem of the solvent can be avoided; nitrate and copper ions in stripping waste liquid can be recycled at the same time, resource utilization is realized, and the environmental pressure is relieved.