93 results about "Cyclooctane" patented technology

The invention belongs to the technical field of polyurethane, and particularly relates to heat-conducting polyurethane with excellent insulating and flame-retardant properties. The invention providesheat-conducting polyurethane with insulating and flame-retardant properties, which comprises the following components in parts by weight: 20-25 parts of polyisocyanate, 38-42 parts of polyol, 5-7 parts of a chain extender, 0.2-1 part of an antioxidant, 8-12 parts of a filler, 16-22 parts of a flame retardant and 0.2-0.6 parts of an auxiliary agent. The polyurethane disclosed by the invention has excellent insulating property (the insulating resistance is greater than 10<12> ohm cm), flame retardant property and heat-conducting property, and is low in hardness. The isocyanate, the polyhydric alcohol and the chain extender generate a polyurethane material, the flame-retardant effect of the polyurethane obtained through mutual cooperation of decabromodiphenyl ethane, bis (hexachlorocyclopentadiene) cyclooctane, Sb2O3 and zinc borate reaches UL94-V0, and aluminum oxide and silicon nitride are uniformly dispersed in the polyurethane, so that the hardness and the heat-conducting property ofthe polyurethane are improved.

The invention relates to the technical field of fine chemical engineering, and discloses a novel synthesis method of 2-butyl-1,2-benzothiazol-3-one. The method comprises the following specific steps:allowing N-butyl-2-methyl(thiobenzamide) to react with 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) in the presence of N,N-dimethyl-formamide for six hours at 60 DEGC, so as to obtain 2-butyl-1,2-benzothiazol-3-one. Compared with the prior art, the method has the advantages that no metal ions or chlorine-containing toxic reagents are introduced, and the yield ishigh, the operation is simple, the influence on the environment is small, the potential industrial value is achieved, and the method is worthy of popularization and application.

The invention discloses an ultrathin wearing layer normal-temperature asphalt modifier and a preparation method thereof. The ultrathin wearing layer normal-temperature asphalt modifier is prepared from the following raw materials in parts by mass: 55-65 parts of cyclooctane, 30-35 parts of modified epoxy resin glue, 0.6-1 part of a dispersant and 5-10 parts of a coupling agent. The preparation method comprises the following steps: putting the cyclooctane, the modified epoxy resin glue and the dispersant into a stirring kettle according to a ratio, heating to 100+/-5 DEG C, mixing, and uniformly stirring for 4-6 hours; further putting a coupling agent into the materials in the stirring kettle, and continuously stirring for 4-6 hours, thereby obtaining the product. By adopting the modifier,the rotary viscosity of asphalt at 60 DEG C can be reduced to 2.2-3.0Pa*s, and a mixed asphalt material can be spread for 1.0-2.0cm by using a common spreading machine within 50-60 DEG C; the construction temperature can be greatly reduced when being compared with a conventional construction temperature, and both the construction cost is reduced and the construction quality is ensured.

The invention discloses a method for preparing cyclooctanol and cyclooctanone through cyclooctane oxidation. The method comprises the following steps: (1) cyclooctane, a catalyst and an oxygen-containing gas are continuously delivered into an oxidation reactor, such that a reaction is carried out, wherein tail oxygen concentration is controlled at within 5% through controlling the input amount of the oxygen-containing gas, the usage amount of the catalyst is 5-10000ppm of the total weight of cyclooctane, a reaction temperature is 120-250 DEG C, a reaction pressure is 0.1-2.0MPa, and an oxidation reactor average retention time calculated according to liquid-phase substances is 0.4-6h, such that oxidation reaction liquid containing cyclooctanol and cyclooctanone is obtained; (2) the oxidation reaction liquid obtained in the step (1) is continuously delivered into a rectification tower; a light component comprising cyclooctane is obtained at the tower top, and is recycled in the oxidation reactor; cyclooctanol and cyclooctanone crude products are obtained at the tower bottom; and the crude products are respectively purified, such that cyclooctanol and cyclooctanone products are obtained. The method provided by the invention is green and environment-friendly, and has the advantages of mild reaction conditions, high product yield, and good selectivity.

A lithographic projection apparatus uses a volume of a second liquid to confine a first liquid to a space between the projection system and the substrate. In an embodiment, the first and second liquids are substantially immiscible and may be a cycloalkane, such as cyclooctane, decalin, bicyclohexyl, exo-tetrahydro-dicyclopentadiene and cyclohexane, another high-index hydrocarbon, a perfluoropolyether, such as perfluoro-N-methylmorpholine and perfluoro E2, a perfluoroalkane, such as perfluorohexane, or a hydrofluoroether; and water, respectively.

The present invention relates to the field of clean energy sources, particularly to an energy-saving synergetic combustion supporting agent, dimethyl ether synthesis fuel gas, and dimethyl ether synthesis fuel oil, wherein the raw materials of the energy-saving synergetic combustion supporting agent comprise ethyl acetate, camphor, castor oil, dicycloheptadiene, liquid-state paraffin, cyclooctane and methanol. According to the three classes of the dimethyl ether synthesis fuel gases and the dimethyl ether synthesis fuel oil for vehicles, the ordinary dimethyl ether is adopted as the mother liquor and modification is performed with the energy-saving synergetic combustion supporting agent, such that the problems of incomplete combustion, coking, carbon deposition, strong volatility, easy machine wear, low heat value, insufficient power and the like of the ordinary dimethyl ether adopted as the civilian use fuel gas, the vehicle fuel gas, the industrial fuel gas and the vehicle fuel oil are overcome.

The invention relates to a cycloalkane catalytic oxidation method promoted by iron porphyrin. O2 is taken as an oxidant, Co (II) porphyrin and Mn (II) porphyrin are taken as main catalysts, and Fe (II) porphyrin is taken as a cocatalyst to carry out reacting at a temperature of 100-160 DEG C and pressure of 0.8-2.0MPa under a solvent-free condition to realize catalytic oxidation of cycloalkanes. The cycloalkanes mainly comprise cyclopentane, cyclohexane, cycloheptane, cyclooctane and cyclononane, and the corresponding oxidation products mainly comprise cycloalkyl alcohols, cycloalkyl ketones and alkyl diacids. The cycloalkane catalytic oxidation method has the advantages of high selectivity of cyclopentanone, cyclohexanol, cycloheptanone and cyclooctanone, small catalyst consumption and simple operation, and environmental friendliness is achieved by taking clean O2 as the oxidant. The disclosesd cycloalkane catalytic oxidation method promoted by iron porphyrin is a cycloalkane catalytic oxidation method with high product selectivity, simple operation and environmental friendliness.

In an optical recording medium, a recording layer is formed by coating a substrate with a solution of coloring matter comprising a coloring matter dissolved in a solvent comprising a mixture of cyclooctane and at least one hydrocarbon having 6 to 9 carbon atoms other than cyclooctane. The obtained optical recording medium enables suppressing the leakage of land prepit signal for address information into RF signal for recorded data at the time of recorded data reproduction, thereby attaining a lowering of error rate.

The invention provides a crystal form B of medicament 2-ethylpiperazine-4-(4-fluorobenzene)-5,6,7,8,9,10-hexahydro cyclooctane pyridine, which is characterized in that powder diffraction occurs in the positions of approximately 7.74+/-0.2, 15.6+/-0.2, 19.1+/-0.2 and 31.64+/-0.2 of a reflecting angle 2 theta through X-ray. The invention also provides a preparing method of the crystal form B, which is characterized by comprising the following steps of: ensuring that the medicament 2-ethylpiperazine-4-(4-fluorobenzene)-5,6,7,8,9,10-hexahydro cyclooctane pyridine is dissolved in ethanol by heating, and then obtaining the crystal form B through recrystallization.

The invention provides a preparation method of a blonanserin intermediate. The preparation method comprises the following steps: reacting 4-(4-fluorophenyl)-3-5,6,7,8,9,10-hexahydro cyclooctane pyridine-2(1H)-ketone with a chloro agent under a certain condition, pouring a reactant after the reaction into ice water, adjusting the pH value by using ammonia water, and performing stirring, filtration or centrifugation to obtain a crude product of 2-chloro-4-(4-fluorophenyl)-5,6,7,8,9,10-hexahydro cyclooctane [b] pyridine (compound I); and dissolving, decoloring and recrystallizing the compound I by using hot ethanol to obtain a refined product of the compound I. Compared with the prior art, the method avoids multiple times of extraction during refining, reduces solvent loss in a middle process, is simple and easy to operate, improves the purity and yield of the product, and is suitable for process scaling and industrial production.

The invention belongs to the technical field of gas separation and purification, and concretely relates to a sulfur dioxide removal composition, and a preparation method and a desulfurization method thereof. The technical problems to be solved by the present invention comprise low desulfurization rate and low desorption rate of existing desulfurization agents. The sulfur dioxide removal composition comprises 5-50 parts by weight of a main absorbent, 0.1-20 parts by weight of an activator, 0.05-5 parts by weight of a corrosion inhibitor, 25-95 parts by weight of water, and an acid; the additionamount of the acid makes the pH value of the sulfur dioxide removal composition be 4.0-5.0; the corrosion inhibitor is composed of a metal oxide and monooleic acid imidazoline; the main absorbent isdiazabicyclooctane; and the activator is at least one selected from hydroxyethylethylenediamine, diethylenetriamine, tetraethylenepentamine, triethylenetetramine and triethylenediamine. The sulfur dioxide removal composition has the advantages of good sulfur dioxide absorption effect, high absorption speed, high absorption capacity, high desorption rate and low energy consumption in desorption, and has a desorption rate of 94.08-99.28%.

The invention relates to a method for preparing a solifenacin succinate ((3R)-1-azabicyclo [2.2.2] octane-3-yl (1S)-1-phenyl-3,4-dihydroisoquinoline-2-(1H)-carboxylate succinate). The method comprises the following steps: 1) preparing a compound (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline carboxylic acid ethyl ester of formula III from a compound (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline, serving as a raw material, of formula IV; 2) synthesizing a compound (3R)-1-azabicyclo [2.2.2] octane-3-yl (1S)-1-phenyl-3,4-dihydroisoquinoline-2-(1H)-carboxylate of formula II in an ionic liquid by using the compound (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline carboxylic acid ethyl ester of formula III; and 3) salifying the compound (3R)-1-azabicyclo [2.2.2] octane-3-yl (1S)-1-phenyl-3,4-dihydroisoquinoline-2-(1H)-carboxylate of formula II in an organic solvent to obtain the compound solifenacin succinate ((3R)-1-azabicyclo [2.2.2] octane-3-yl (1S)-1-phenyl-3,4-dihydroisoquinoline-2-(1H)-carboxylate succinate) of formula I. The preparation method has the advantages that the process is simple, the method is suitable for industrialized production, the yield of the product is high and the purity of the product is high.

The invention discloses a method for preparing alkane base containing phosphine bridge dichloropentate cyclooctane. The method comprises the following steps: firstly, implementing reaction on an alkaline metal M with elemental phosphorus so as to obtain a reaction system containing M3P, secondly, implementing the system with alcohol and alkyl halide or halogenated naphthene so as to obtain a reaction system containing RPH2, and finally bridging RPH2 with 1,5-cyclooctadiene, thereby obtaining a final product of 9-R-9-phosphine bridge-[3.3.1]-dichloropentate cyclooctane, wherein R is an alkyl part in alkyl halide or alkyl or alcyl which is accordant to an alcyl part in alkyl halide. The method disclosed by the invention is simple and convenient in operation step, small in toxicity, low in production cost, high in final product yield, high in purity, wide in application range, and can be used as ligand applied to the field of catalysts of the terminal olefin industry.

The invention relates to a surface treating agent, in particular to a glass antifouling self-cleaning agent. The glass antifouling self-cleaning agent is prepared from the following raw materials in parts by weight: 30 to 45 parts of polymethyl methacrylate, 10 to 15 parts of di-hydroxyl terminated polysiloxane, 4 to 15 parts of trimethylolpropane, 5 to 10 parts of cyclooctane, 2 to 10 parts of phenylpropane and 10 to 20 parts of titanium dioxide. According to the glass antifouling self-cleaning agent disclosed by the invention, the surface is unlikely to be tainted with dust or other micro particles, and antifouling and self-cleaning functions are realized.

A novel catalyst-free oxidation method for cyclooctane includes the steps of adding the cyclooctane into a reaction vessel, carrying out a reaction at the temperature of 100-160 DEG C and under 0.8-2MPa for 3-48 hours, and after post-treatment of reaction liquid, performing separation to obtain oxidized products: suberic acid, pimelic acid, cyclooctanol and cyclooctanone. The novel catalyst-freeoxidation method for the cyclooctane has the advantages that the method is simple to operate and low in cost; no catalyst is used, and accordingly, transition metal pollution of the oxidized productsis prevented; clean O2 is taken as an oxidant, and environment protection is realized.