Micro -reactor

The utility model provides a micro -reactor. This micro -reactor includes the powder size of heat transfer system and multiple modules ization, and powder size includes heat transfer unit and react unit, and powder size is last to be provided with a plurality of interfaces, powder size still including run through heat transfer unit and react unit and with heat transfer unit and isolated isolationpassageway (11) of react unit, the interface includes the heat transfer interface and reacts the interface that the both ends of isolation passageway (11) are connected with the reaction interface respectively, can free multiple modules 0 between powder size's the reaction interface. The utility model discloses a micro -reactor, simple structure, the commonality is good, has higher suitability.

Method for preparing isocyanate

The invention belongs to the technical field of organic compound preparation, and relates to a method for preparing isocyanate by pyrolyzing aminoalkyl esters. The method comprises the following steps: evenly mixing hexamethylene1, 6-dicarbamate, dioctylphthalate and zinc-zinc oxide into a mixture according to a mass ratio of 25:50:1; adding the mixture into a reaction kettle; replacing air in a reaction system by nitrogen, and then entering a program operation; improving a reaction temperature to 220 DEG C in 1 to 2 hours, and adjusting system vacuum degree to -0.090MPa; starting to collect isocyanate product after pyrolyzing for 1 to 1.5 hours under the condition of maintaining the temperature and the pressure; and improving the temperature to 240 to 260 DEG C in 0.5 to 1 hour, and gradually adjusting the system vacuum degree to -0.098MPa in the condition of keeping the temperature until the reaction is over. The method has reasonable process route, good selectivity, high product yield ...

Preparation of 2,2'-azobisisobutryamide chloride

The invention relates to a method for preparing azo amidine salt in the field of organic chemical material manufacturing technology, in particular to a method for preparing 2,2'-azobisisobutryamide chloride. The prepared azo amidine salt is used as a free radical evocating agent in polymerization reaction; firstly, according to molar ratio, hydrogenized azodiisobutyronitrile, alcohol and chlorineare subjected to synthetic reaction in a solvent at a controlled temperature; secondly, chlorine hydride is conducted to a reaction material and reacts to obtain azo imino-ester hydrochlorate; and finally, the azo imino-ester chloride is dispersed through alcohol and reacts with ammonia gas according to molar ratio; the product is directly sucked and filtered to obtain a 2,2'-azobisisobutryamide chloride coarse product; the coarse product is recrystallized to obtain the 2,2'-azobisisobutryamide chloride pure product. The method has a reliable principle, a convenient process, easy operation, safety ...

Preparation method for substituted diphenyl sulfide

The invention relates to a synthesis method for organic compound, in particular to a preparation method for substituted diphenyl sulfide, belonging to the technical field of organic chemical substance preparation. Under the existence of Lewis acid catalyst, reaction temperature is controlled to be negative 10 DEG C to 70 DEG C to enable substituted benzene sulfenyl chloride and substituted benzene to take place Friedel-Crafts reaction in chloralkane solvent to generate substituted diphenyl sulfide. The used chloralkane solvent is mixed solvent formed by one or more of monochloromethane, dichloromethane, chloroform, carbon tetrachloride, dichloroethane and tetrachloroethane. The used catalyst is mixed catalyst formed by one or more of anhydrous ferric chloride, anhydrous aluminum chloride, titanium tetrachloride and anhydrous boron trifluoride. The invention has the advantages that the price of the raw materials is low, the synthesis reaction is mild and stable, the conversion rate of the ...

Photoresist matrix resin synthesis intermediate and preparation method thereof

The invention belongs to the field of chemical synthesis and photoetching materials, and particularly relates to a photoresist matrix resin synthesis intermediate and a preparation method thereof. The photoresist main body resin is 193 nm photoresist main body resin, the synthesis intermediate of the photoresist main body resin is an adamantane derivative, namely 3-(adamantane-1-oxyl)-2-thiophenemethanol, and the preparation method specifically comprises the following steps: reacting 1-bromo-adamantane serving as a raw material with 3-hydroxy-2-thiophenecarboxylic acid methyl ester under an alkaline condition to obtain the 3-(adamantane-1-oxyl)-2-thiophenemethanol. The preparation method comprises the following steps: firstly, preparing 3-(adamantane-1-oxyl)-2-thiophenecarboxylic acid methyl ester, then, reducing the obtained 3-(adamantane-1-oxyl)-2-thiophenecarboxylic acid methyl ester under the action of LiAlH4, and finally, preparing the 3-(adamantane-1-oxyl)-2-thiophenemethanol. The ...

Dark black active dyestuff having high colour fixing rate

Novel edible oil with controllable glyceride content and preparation method thereof

The invention provides a novel edible oil with controllable glyceride content and a preparation method thereof and relates to an edible oil, specifically to the novel edible oil with controllable glyceride content, i.e., novel edible oil with glyceride content of zero or in a range of 0 to 12%. The novel edible oil is prepared from 80 to 100 parts of common edible oil, 1 to 10 parts of bio-enzyme and 10 to 50 parts of an XY modifier by using certain technology. The novel edible oil has almost same taste compared with the common edible oil; the viscosity of the novel edible oil gradually decreases as the content of glyceride continuously decreases; the color of the novel edible oil gradually becomes lighter as the content of glyceride continuously decreases and colorless and becomes transparent when the content of glyceride is zero; glyceride is separated from the common edible oil, so the harmful is turned into the favorable. The invention has the following beneficial effects: on the one ...

Space optical communication system without accuracy alignment

The invention discloses a space optical communication system without accuracy alignment. The system comprises an optical signal emitting unit, an optical signal receiving unit and an aiming unit for aligning signal beams to the optical signal receiving unit. The aiming unit comprises a target position marking portion and an emitting angle adjusting portion. The optical signal emitting unit is fixed to the emitting angle adjusting portion of the aiming unit. The optical signal receiving unit is close to the target position making portion of the aiming unit. According to the space optical communication system, a laser light source with the large divergence angle is adopted, no optical receiving lens is adopted, laser spots are made to directly cover the target surface of a detector, and therefore the requirement for alignment accuracy is greatly lowered; a multi-channel single-photon detector is adopted for detecting optical signals, the receiving sensitivity can reach the single-photon level ...

Multielement photon counting laser ranging three-dimensional imaging system

The invention discloses a multielement photon counting laser ranging three-dimensional imaging system. The system comprises a laser emitting unit used for emitting beam arrays, a control unit for controlling the beam arrays to be emitted and scanned, a receiving and detecting unit which receives echo optical signals through an optical lens and detects focal plane optical signals through a single-photon detector array formed by coupling optical fiber arrays, and a time measurement unit used for recording and analyzing multi-channel photon flying time. According to multielement photon counting three-dimensional imaging system, the single-photon detector array formed by coupling optical fiber arrays is used, multielement photon counting laser ranging of one-dimensional laser beam arrays is achieved, one-dimensional scanning is performed on the beam arrays in the vertical direction of arrangement of the beam arrays, and photon counting three-dimensional laser imaging is achieved.

Preparation of 2,2'-azobisisobutryamide chloride

The invention relates to a method for preparing azo amidine salt in the field of organic chemical material manufacturing technology, in particular to a method for preparing 2,2'-azobisisobutryamide chloride. The prepared azo amidine salt is used as a free radical evocating agent in polymerization reaction; firstly, according to molar ratio, hydrogenized azodiisobutyronitrile, alcohol and chlorine are subjected to synthetic reaction in a solvent at a controlled temperature; secondly, chlorine hydride is conducted to a reaction material and reacts to obtain azo imino-ester hydrochlorate; and finally, the azo imino-ester chloride is dispersed through alcohol and reacts with ammonia gas according to molar ratio; the product is directly sucked and filtered to obtain a 2,2'-azobisisobutryamide chloride coarse product; the coarse product is recrystallized to obtain the 2,2'-azobisisobutryamide chloride pure product. The method has a reliable principle, a convenient process, easy operation, safety ...

Method for preparing isocyanate

The invention belongs to the technical field of organic compound preparation, and relates to a method for preparing isocyanate by pyrolyzing aminoalkyl esters. The method comprises the following steps: evenly mixing hexamethylene1, 6-dicarbamate, dioctylphthalate and zinc-zinc oxide into a mixture according to a mass ratio of 25:50:1; adding the mixture into a reaction kettle; replacing air in a reaction system by nitrogen, and then entering a program operation; improving a reaction temperature to 220 DEG C in 1 to 2 hours, and adjusting system vacuum degree to -0.090MPa; starting to collect isocyanate product after pyrolyzing for 1 to 1.5 hours under the condition of maintaining the temperature and the pressure; and improving the temperature to 240 to 260 DEG C in 0.5 to 1 hour, and gradually adjusting the system vacuum degree to -0.098MPa in the condition of keeping the temperature until the reaction is over. The method has reasonable process route, good selectivity, high product yield ...

Preparation of 2,2'-azodiisobutyrate

The invention relates to a method for preparing an azo ester in the technical field of organic chemical material production, in particular to a method for preparing 2, 2'-AIBME. The esters products prepared can be used as a radical initiator in a polyreaction. The method comprises the following steps: carrying out synthetic reaction on hydriding azodiisobutyronitrile, alcohol and chlorine gas in solvent at controlled temperature according to mol ratio; introducing chlorine hydride to reaction mass for reaction to obtain azo imino-ether hydrochloride; in the presence of water, hydrolyzing the azo imino-ether hydrochloride; carrying out suction filtration and separation directly on the hydrolysate after freezing to obtain a crude product of the 2, 2'-AIBME; and recrystallizing the crude product to obtain a pure product of the AIBME. The reaction is characterized by simple process, reliable theory, easy use of reaction devices and operating process, safety and environment protection and high ...

Method for electrosynthesis of adiponitrile by using dimensionally stable anode

The invention relates to a method for electrosynthesis of adiponitrile by using a dimensionally stable anode. The method comprises the following steps of: carrying out electrosynthesis of the adiponitrile in a non-diaphragm type electrolytic bath by utilizing titanium as a substrate, utilizing the dimensionally stable anode coated with oxides, such as ruthenium, iridium, tantalum and the like as an anode and utilizing plumbum or cadmium as a cathode; introducing a direct current of 500 A.m-2-3,000A.m-2 at the temperature of 20-60 DEG C for electrolysis; and maintaining the flow rate of interelectrode electrolytes to be more than 1m.s<-1>, wherein the electrolytes contain 0.5-7% by mass of acrylonitrile, 5-20% by mass of potassium phosphate, sodium phosphate, acid type potassium phosphate or acid type sodium phosphate as supporting electrolytes, 0.1-5.0% by mass of buffer, 0.1-10.0% by mass of guiding ion source quaternary ammonium salt and the balance of water, the pH value of the electrolyte ...

Method for preparing high-purity 4,4'-bis(chloromethyl)-1,1'-biphenyl under novel solvent system

The invention relates to a method for preparing high-purity 4,4'-bis(chloromethyl)-1,1'-biphenyl under a novel solvent system, and belongs to the field of chemical synthesis, in particular to a method for preparing the high-purity 4,4'-bis(chloromethyl)-1,1'-biphenyl under the novel solvent system by using biphenyl as a raw material. Through the application of a novel solvent, the 4,4'-bis(chloromethyl)-1,1'-biphenyl is prepared through two steps of a chloromethylation reaction and refining by using the biphenyl as the raw material, the yield is greater than or equal to 80%, and the purity is greater than or equal to 99%. The product changes a traditional solvent system, the yield and purity of the product are obviously improved, the potential safety hazards of a low-boiling solvent in the production process are reduced, and the solvent is convenient for recycling.

Method for preparing adiponitrile by electrolyzing acrylonitrile aqueous solution

The invention relates to a method for preparing adiponitrile by electrolyzing acrylonitrile aqueous solution in a non-diaphragm electrolytic cell, comprising the following steps: preparing aqueous solution containing 5-7wt% of acrylonitrile to serve as adiponitrile electrolyte, wherein in addition to the acrylonitrile, the electrolyte also contains 5-20wt% of phosphate or acid phosphate as supporting electrolyte, 0.1-5.0wt% of EDTA (ethylene diamine tetraacetic acid), EDTA sylvite or EDTA sodium salt to serve as buffering agent and 0.1-10wt% of quaternary ammonium to serve as an oriented ion source; regulating the pH value of the electrolyte to 6-10, where the anode material is Fe, Pb or PbO2, and the cathode material is C, Pb or Cd; at the temperature of 20-60 DEG C and under the current density of 500-3000A.m<2>, carrying out continuous electrolysis, and separating out an organic phase; and by means of rectification, separating the product of adiponitrile and a byproduct of propionitrile ...