26 results about "Haloalkene" patented technology

The invention relates to the technical field of energy storage safety, and particularly discloses flame-retardant cooling liquid, a preparation method of the flame-retardant cooling liquid, an immersed energy storage device, a data center and electric equipment. According to the present invention, the base oil is at least one of the liquid halogenated alkane containing 2-6 carbon atoms, the liquid halogenated olefin, the liquid halogenated ketone and the liquid halogenated cycloalkane containing 3-6 carbon atoms, such that the high biodegradability of the base oil is maintained, the system viscosity is effectively reduced, the heat dissipation performance is improved, the insulating property of the base oil is significantly improved, and the service life of the base oil is prolonged. Meanwhile, the flame retardance is further enhanced. Therefore, the heat management efficiency of the cooling liquid is remarkably improved while environmental protection and safety are considered, and the cooling liquid has a good application prospect.

The present invention provides: a supercritical processing composition that contains a halogenated olefin having two carbon atoms and carbon dioxide, wherein the content of the carbon dioxide is 76.4 mass% or more with respect to the total amount of the halogenated olefin having two carbon atoms and the carbon dioxide; a supercritical processing method and a supercritical processing device using the same; and a container containing the supercritical processing composition.

The application discloses a preparation method of an indoline compound based on organic electrosynthesis, and belongs to the technical field of pharmaceutical chemical engineering and related chemistry. The method uses simple arylamine and halogenated olefin as raw materials, and prepares the indoline compound under the electrolysis of an electrode, so that green and efficient synthesis of the indoline compound is realized. The method has the advantages of low cost, high selectivity, mild reaction condition, good functional group compatibility, wide substrate range and environmental friendliness. The indoline compound is an important organic synthesis intermediate, and has a very wide application in the fields of fine chemical engineering and pharmacy. The preparation method has great application value and social and economic benefits.

The invention provides a preparation method of polar polyolefin, and belongs to the technical field of polyolefin. The preparation method comprises the following steps: in an inert atmosphere, under the action of a catalyst and a cocatalyst, copolymerizing C2-C6 olefin and an alkylated polar monomer in an organic solvent to prepare polar polyolefin, wherein the alkylated polar monomer is prepared by the following steps: dissolving an alkylating reagent in an organic solvent, adding a polar monomer, and mixing and stirring to obtain the alkylated polar monomer; the polar monomer comprises at least one of halogenated alpha-olefin, alpha-olefine acid, alpha-enol, alpha-olefine aldehyde, alpha-olefine ester and alpha-olefine ketone. The polar monomer is pre-protected by adding the alkylating reagent, so that effective copolymerization of C2-C6 olefin and the polar monomer is realized, and the performance of polyolefin is favorably improved.

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

A method for producing haloolefins, wherein, in the presence of silicon oxide and alkali metal elements, haloalkanes containing fluorine atoms and having 2 to 4 carbon atoms are converted into haloolefins containing fluorine atoms and having 2 to 4 carbon atoms in the gas phase.

The present invention is directed to a process for producing a compound of formula (I): (R 1 ) y (R 2 O) 3-y SiCH2CHR 3 CR 4 R 5 X (I) (a) Halogenated olefins; (b) alkoxysilanes; (c) a catalytically effective amount of an iridium-containing catalyst; and (d) reacting a reaction-promoting effective amount of peroxycarboxylic acid to produce the product of formula (I).

The application discloses an olefin-based tertiary amine monomer for a crosslinked anion exchange membrane and a preparation method and application thereof. The monomer structure is shown in a general formula: (R a)(R b)N-R c, wherein R a and R b are each independently selected from an alkyl group, an aryl group, a heterocyclic group or an alkenyl group, R c is a group containing at least one alkenyl group, and at least two groups of R a, R b and R c each contain at least one alkenyl group. The preparation method comprises the following steps: halogenating a tertiary alcohol amine to obtain a halogenated tertiary amine, and then reacting the halogenated tertiary amine with a Grignard reagent prepared from a halogenated olefin to obtain the target monomer. The monomer contains multiple alkenyl groups and tertiary amine groups in the molecule, can be used as a precursor with polymerizable and ionizable functions, and is used for preparing an anion exchange membrane with a three-dimensional network crosslinked structure. The raw material is easy to obtain, the synthesis route is simple, the product structure is adjustable, the prepared anion exchange membrane has high ionic conductivity, excellent dimensional stability and alkali resistance, and is suitable for alkaline fuel cells, water electrolysis hydrogen production and other electrochemical devices.

To obtain a halogenated alkene compound and a halogenated alkyne compound in high conversion and high selectivity.SOLUTION: Any one of the following methods (1) to (4) is employed: (1) CX1X2X3CHX4CFHCX5X6X7 wherein X1, X2, X3, X4, X5, X6, and X7 are identical or different and are halogen atoms. (2) CX1X2X3CX4 = CHCX5X6X7 [X1, X2, X3, X4, X5, X6, and X7 are as defined above]. (3) CHX8A1CHX9A2 wherein A1 and A2 are each independently a halogen atom or a perfluoroalkyl group. X8 and X9 are identical to or different from each other and each represent a halogen atom; (4) CX8A1 = CHA2 [wherein A1, A2 and X8 are as defined above] is subjected to a dehydrohalogenation reaction in the gas phase in the presence of a catalyst. Is subjected to a dehydrohalogenation reaction in the presence of a catalyst.SELECTED DRAWING: None

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

The invention discloses a synthetic method of perfluoroalkoxy methylene vinyl ether, which comprises the following steps of: 1, reacting alkyl fluoroformate with halogenated olefin under the action of an auxiliary agent to generate halogenated alkyl ether, and performing dehalogenation reaction to generate perfluoroalkoxy methylene vinyl ether; the method II comprises the following steps: reacting alkyl fluoroformate with hexafluoropropylene oxide under the action of an auxiliary agent to generate alkoxy propionyl fluoride, and carrying out salification and decarboxylation reaction to generate perfluoroalkoxy methylene vinyl ether (RfOCF2OCF = CF2); the auxiliary agent is metal fluoride or fluoro quaternary ammonium salt. In the first method and the second method, the alkyl fluoroformate and the halogenated olefin or the hexafluoropropylene oxide need to react under the action of the aid (metal fluoride or fluoro quaternary ammonium salt), so that the safety problem caused by direct use of fluorine gas is avoided, and the conversion rate of the trifluoromethyl fluoroformate and the yield and selectivity of the product can be improved.

The invention provides an application of halogenated olefin and a polyurethane foam composition, and the application of halogenated olefin in a low-temperature foaming agent, and the halogenated olefin is selected from one or more than two of cis-1, 2-difluoroethylene, 2, 3, 3-trifluoropropene, 1, 3, 3-trifluoropropene and / or 3, 3-difluoropropene. The present application also provides a polyurethane foam composition comprising a composite polyol, a low temperature foaming agent, a stabilizer and a catalyst wherein the low temperature foaming agent is selected from one or more than two of cis-1, 2-difluoroethylene, 2, 3, 3-trifluoropropene, 1, 3, 3-trifluoropropene and 3, 3-difluoropropene, and the halogenated olefin has a zero ODP value and a low GWP value, and also has a low GWP value in addition to a zero ODP value and a low GWP value. Meanwhile, when polyurethane is prepared, the core density and the heat conductivity coefficient of the polyurethane foam can also be reduced.

A method for producing a halogenated alkene, the method comprising converting a halogenated alkane represented by formula (1) into a halogenated alkene represented by formula (2) and a compound represented by formula (3) in a gas phase in the presence of silicon oxide and an alkali metal element. R1-R3 each independently represent a hydrogen atom, a fluorine atom, a methyl group, a fluorinated methyl group, an ethyl group, or a fluorinated ethyl group, and the number of carbon atoms in each of formulae (1)-(3) is 2-4.

The invention relates to the technical field of fluorine chemical industry, in particular to a preparation method of perfluoromethoxy methylene vinyl ether.The preparation method comprises the following steps that S1, perfluoroolefin serves as a raw material to be subjected to an ozone cracking reaction, and trifluoromethyl fluoroformate is obtained through separation and purification; s2) enabling the trifluoromethyl fluoroformate to react with fluorine gas and halogenated olefin to generate fluorine halogen ether; and S3) carrying out dehalogenation or hydrogen generation on the fluorine halide ether to obtain the perfluoromethoxy methylene vinyl ether. The technical scheme provided by the invention has the following advantages: 1) the raw material cost is low, the main raw material for preparing trifluoromethyl fluoroformate is fluorine-containing olefin, and industrialization is realized; the perfluoromethoxy methylene vinyl ether has the advantages of simple preparation process, mild process conditions, simplicity, safety, reliability, good reaction selectivity, easy product separation, high yield, low cost and suitableness for industrial scale-up production.

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

The invention provides a water-gas dual-purpose halogenated olefin sensor, and relates to the technical field of analytical chemistry instruments, the water-gas dual-purpose halogenated olefin sensor comprises a carrier gas pipeline, a clustered membrane in-situ extraction sampling device, a cold trap dehydration device, a gas sample pipeline and a photoionization detector, the clustered membrane in-situ extraction sampling device is connected with the cold trap dehydration device through a conveying pipeline; the clustered membrane in-situ extraction sampling device comprises a container and a membrane sampling device, a liquid sample is contained in the container, the membrane sampling device comprises a clustered membrane, and halogenated olefin in water is extracted into a gas phase; the cold trap dehydration device is used for dehumidifying the gas conveyed in the conveying pipeline to obtain a low-humidity halogenated olefin-containing gas sample, and the low-humidity halogenated olefin-containing gas sample is sent into the photoionization detector for detection through the capillary column; and the gas sample pipeline is directly connected with the ionization detector. The water-gas dual-purpose halogenated olefin sensor disclosed by the invention is high in sensitivity, solves the problems of humidity interference, poor membrane stability and the like, and is suitable for detecting halogenated olefin in underground water.

The application relates to the technical field of energy storage safety, and particularly discloses a fire-retardant cooling liquid, a preparation method thereof, an immersion type energy storage device, a data center and an electric equipment. By introducing specific modifiers, i.e. at least one of liquid halogenated alkanes containing 2-6 carbon atoms, liquid halogenated alkenes, liquid halogenated ketones and liquid halogenated cycloalkanes containing 3-6 carbon atoms, into base oil, the system viscosity is effectively reduced, the heat dissipation performance is improved, the insulation performance of the base oil is significantly improved, and the fire resistance of the base oil is further enhanced. Therefore, the application can consider environmental protection and safety, significantly improve the heat management efficiency of the cooling liquid, and has a good application prospect.

The present application relates to a kind of synthetic gas from plastic and high-entropy oxide.The synthetic gas from plastic of the present application includes the following steps: plastic is contacted with high-entropy oxide and carries out chemical chain gasification reaction, wherein the plastic is selected from one or more of polyolefin, polystyrene, polyester, halogenated olefin treated by dehalogen process;The composition of the high-entropy oxide is Ni a Co b Fe c M d Al e O x Wherein M is Mg or Zn, a is 0.2~1, b is 0.2~1, c is 0.2~1, d is 0.2~1, e is 0.2~2, a+b+c+d+e is 1~4, x is 1.3~5.8.The method of the present application has high syngas yield and high CO selectivity.The high-entropy oxide of the present application has high stability, is easy to regenerate and has high cycle stability.

Provided is a cover gas composition for suppressing oxidation or combustion of molten metal: the cover gas composition comprising a halogenated olefin having 2 carbon atoms and carbon dioxide, wherein the content of the carbon dioxide is 76.4 mass% or more with respect to the total amount of the halogenated olefin having 2 carbon atoms and the carbon dioxide; the cover gas composition comprising a halogenated olefin having 2 carbon atoms and nitrogen, wherein the content of the nitrogen is 77.6 mass% or more with respect to the total amount of the halogenated olefin having 2 carbon atoms and the nitrogen; or the cover gas composition comprising a halogenated olefin having 2 carbon atoms and argon, wherein the content of the argon is 89.9 mass% or more with respect to the total amount of the halogenated olefin having 2 carbon atoms and the argon. Also provided are a cover gas mixture using said cover gas composition, a method for suppressing oxidation or combustion of molten metal, a cover gas supply device, and a method for supplying the cover gas composition.

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

According to the present invention, a fluorine-containing (cyclo)alkenyl zinc halide compound can be obtained in a high yield by reacting a halogenated olefin compound represented by formula (2):wherein R1, R2, and R3 are as defined above, X2 represents a halogen atom, and a single bond expressed with a wavy line indicates that the steric configuration with respect to a double bond to which the single bond is connected is E configuration, Z configuration, or a mixture of E configuration and Z configuration in any ratio, with a zinc halide compound represented by formula (3): ZnX1 (3), wherein X1 is as defined above, in the presence of a zerovalent alkali metal.

Copolymers of one or more halogenated olefins and one or more halogenated co-monomers selected from the group consisting of halogenated alkenyl ethers, halogenated alkenyl esters, and halogenated (meth)acrylates are useful in various end-use applications wherein the presence of halogen (e.g., fluorine) in the copolymer imparts one or more desirable properties, as compared to analogous copolymers not containing halogen.

A polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

A polyurethane foam forming composition includes a polyol blend, a blowing agent composition, and a polyisocyanate. The polyol blend has a weighted average functionality of from 3 to 6 and a weighted average OH number of from 300 to 500 mg KOH / g. The blowing agent composition comprises a physical blowing agent and a carbon dioxide-generating chemical blowing agent wherein the physical blowing agent comprises a halogenated olefin present in an amount (i) in the range of from 1 to 30% by weight, based on the total weight of the polyurethane foam-forming composition other than the weight of the polyisocyanate, and (ii) in the range of at least 80% by weight, based on the total weight of the polyurethane foam-forming composition, based on the total weight of the polyurethane foam-forming composition, based on the total weight of the polyurethane foam-forming composition. Based on the total weight of the physical blowing agent in the blowing agent composition. The physical blowing agent composition and the carbon dioxide-generating chemical blowing agent are present in a relative ratio by weight of at least 5: 1. The polyisocyanate includes a urethane-modified polyisocyanate, the urethane-modified polyisocyanate having an NCO group content of from 25 to 35 wt%, based on the total weight of the urethane-modified polyisocyanate, and including a reaction product of a polymethylene polyphenyl polyisocyanate and a mono-alcohol.

The application discloses a viscosity-reducing polycarboxylic water reducing agent with branched side chains and a preparation method thereof.The water reducing agent is obtained by random copolymerization of a novel comb-shaped macromonomer C and unsaturated carboxylic monomer D at a mass ratio of 1:1-6;the novel comb-shaped macromonomer C is first copolymerized with carboxylic acid vinyl ester monomer A and methoxy-terminated polyoxyethylene ether monomer B to obtain a copolymer, then reactive hydroxyl groups are introduced at the end of the copolymer by using mercapto alcohol chain transfer agent, and finally, nucleophilic substitution reaction of the hydroxyl groups and halogenated olefins is carried out to obtain the product.The HLB value of the synthesized polycarboxylic water reducing agent is effectively reduced by introducing a hydrophobic ester bond structure into the side chain, which is beneficial to reducing the plastic viscosity of cement paste; and the multi-branched structure has a greater steric hindrance than the single side chain of the conventional polycarboxylic water reducing agent, thereby playing a role of strong dispersion and high water reduction.

The invention relates to a high-barrier BOPE aluminum laminated film for packaging and a preparation method thereof, and belongs to the technical field of aluminum laminated films. The preparation method comprises the following steps: carrying out amidation reaction on tetraethyl (3-amino-1, 1-propane diyl) di (phosphonate) and 3-(2-pyridine dithio) propionic acid-N-succinimide ester through amino to obtain a modifier precursor containing pyridyl, carrying out quaternization reaction on halogenated olefin and the pyridyl of the modifier precursor to obtain a modifier containing carbon-carbon double bonds, and carrying out heat treatment on the modifier containing the carbon-carbon double bonds to obtain the modified carbon-carbon double bonds. And finally, carrying out melt grafting on the modifier and the polyethylene master batch to prepare a modified film capable of strongly adsorbing an aluminum layer, and then plating a layer of metal aluminum to finally obtain the high-barrier BOPE aluminum laminated film for packaging.