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121 results about "Iso butanol" patented technology

Isobutanol is an organic compound, a form of lightweight alcohol, that is produced from natural and petrochemical sources and has many common solvent and some potential fuel uses.

Reactive distillation method and reactive distillation device for producing butanol by hydrogenating butyraldehyde

The invention relates to a reactive distillation method and a reactive distillation device for producing butanol by hydrogenating butyraldehyde. The device comprises an evaporator, a reactive distillation tower, a butanol distillation tower, an n-butanol and iso-butanol separation tower, a condenser, a reboiler, a compressor, a pump, relevant feeding pipelines and pipelines used for connecting the devices. The method and the device have the characteristics that the reactive distillation technology and devices are adopted, light components are separated at a tower top during a process of carrying out hydrogenation reaction of butyraldehyde in the reactive distillation tower; n-butanol and iso-butanol can be prepared by subsequent separation; a unit for producing butanol by using butyraldehyde and a unit for purifying, distilling and separating are operated and coupled in one device for simultaneously operating; reaction products are purified after the reaction is completed; the device investment is saved; the subsequent operation fee is also reduced; the quality purity of n-butanol prepared by separating through the subsequent butanol distillation tower and the n-butanol and iso-butanol separation tower can reach 99.5%; the quality purity of iso-butanol can reach 99%.
Owner:TIANJIN UNIV

Composite diesel oil for automobile

The invention discloses composite diesel oil for an automobile. The composite diesel oil is characterized by comprising the following components in parts by weight: 0.03-1.09 parts of ferrocene, 20-30 parts of diesel oil, 2-5 parts of dimethyl carbonate, 1 part of tertiary butanol, 1-3 parts of isobutanol, 15-20 parts of kerosene, 20-35 parts of coal tar and 40-50 parts of heavy aromatic hydrocarbon. In the composite diesel oil for the automobile, ferrocene can improve the dynamic property of the composite diesel oil and takes effects of reducing carbon deposition of a nozzle, eliminating smoke and supporting combustion; dimethyl carbonate can greatly reduce or basically eliminate the combustion smoke of a diesel engine, reduce the pollution of diesel oil combustion to environment and simultaneously improve the heat engine efficiency of the diesel engine, dose not lower fuel oil kilometers, and is nontoxic and environmentally-friendly; organic matters such as tertiary butanol and isobutanol can improve the intersolubility among the components of the composite diesel oil for the automobile, can improve the condensation point of the diesel oil and improve the condensation point of the composite diesel oil for the automobile; and isobutanol can also reduce the content of sulfur in the fuel and the emission of harmful substances.
Owner:彭爱国

Production process of brominated SBS

The invention discloses a production process of brominated SBS, and belongs to the technical field of flame retardant production, and the production process comprises the following steps: adding SBS and isobutanol into a reaction kettle, heating to 20-40 DEG C, stirring, and keeping the temperature until the materials are completely dissolved; adding sodium bromide, introducing oxidizing agent chlorine, filling lime milk at the tail end of the reaction kettle to absorb unreacted chlorine in the reaction kettle, and heating to 60-75 DEG C and then stopping heating; cooling to 20 DEG C, adding acatalyst, and continuously heating to 75 DEG C to react for 1 hour, wherein the catalyst being tin tetrachloride and ferric trichloride; and cooling to room temperature, adding peroxide and alkali metal alkoxide into the material liquid after the reaction is finished, heating to 30-40 DEG C, keeping the temperature for 2 hours, filtering, washing, removing impurities, and drying to obtain the target product brominated SBS, wherein the peroxide is hydrogen peroxide, and the alkali metal alkoxide is sodium methoxide. The preparation of the brominated SBS is realized by adopting a direct bromination method, the reaction is mild, the bromine content, the yield and the thermal stability of the brominated SBS are improved, and the use requirements are met.
Owner:山东东信新材料科技股份有限公司

Method and device for preparing sec butanol

The present invention provides a method and a device for preparing sec butanol, and the method is as follows: (1) sec-butyl acetate is introduced into a first-stage catalytic distillation column, excessive C1-C3 alcohols are added simultaneously for ester exchange, the sec butanol as a product falls into a tower kettle to collect, and the unreacted C1-C3 alcohols and reaction product acetic acid C1-C3 esters partly are sent into a second-stage catalytic distillation column for further reaction separation; (2) excessive sec-butyl acetate is added into the second-stage catalytic distillation column, the acetic acid C1-C3 esters are distilled off from the top of the column, and then congealed to partly reflux to the top of the second-stage catalytic distillation column and partly use as a product to collect; and (3) the sec butanol obtained by the step (2) and the unreacted sec-butyl acetate are returned to the first-stage catalytic distillation column for further reaction separation. The purity of the sec butanol obtained by the method is high above 99.9%, the purity of the separated acetic acid C1-C3 esters is more than 99%, at the same time, the method has the advantages of simple process and easy operation, compared with the process of butylene hydration for preparing the sec butanol, energy consumption is greatly reduced, and cost is saved.
Owner:HUNAN ZHONGCHUANG CHEM

Building environment-friendly waterproof material manufacturing process

The invention discloses a building environment-friendly waterproof material manufacturing process. The manufacturing process comprises the following steps: S1, selecting materials: selecting 50-60 parts of acrylic acid, 70-80 parts of epoxy resin glue, 5-7 parts of aluminum oxide, 8-10 parts of sodium silicate, 10-12 parts of talcum powder, 11-13 parts of hollow glass beads, 10-12 parts of a pigment and 80-100 parts of an organic solvent for later use, wherein the organic solvent is one or more of methanol, n-propanol, n-butanol, isobutanol and ethylene glycol. The invention relates to the technical field of building material production processes. According to the manufacturing process, environment-friendly raw materials such as acrylic acid, epoxy resin glue, organic solvents, and the like, are used for manufacturing a building material; the environment-friendly property of the building material is improved, pollution to the environment and human bodies is reduced; the building material has a certain waterproof performance and compression resistance through cooperation of oxidation, sodium aluminosilicate, talcum powder and hollow glass beads; the building material is prevented from being damaged by water vapor and pressure, and the service life of the building material is greatly prolonged.
Owner:FOSHAN SHUNDE HESHENG CHEMICAL INDUSTRIAL CO LTD

Synergistic insecticidal composition containing afidopyropen and application of synergistic insecticidal composition

PendingCN111280174ATag goodExcellent stomach toxicityBiocideAnimal repellantsPyrrolidinonesLignosulfonates
The invention relates to the field of pesticides, and in particular, relates to a synergistic insecticidal composition containing afidopyropen and an application of the synergistic insecticidal composition. The synergistic insecticidal composition containing afidopyropen comprises effective components, a solvent, a wetting agent and a dispersing agent, wherein the effective components comprise a component A and a component B, the component A is acetamiprid and/or spirotetramat, the component B is afidopyropen, the solvent comprises dimethylacetamide, 2-pyrrolidone, isobutanol and water, the wetting agent is a compound of a specific polymer surfactant and a dimeric surfactant, and the dispersing agent is lignosulfonate. The synergistic insecticidal composition provided by the invention hasthe advantages that the insecticide resistance of pests can be delayed, and the synergistic insecticidal composition has quick-acting property and long lasting period, exists in the form of a dispersible liquid or a soluble liquid, has good storage stability, is diluted with water in use, has low sensitivity to hard water, does not generate a large-particle crystallization phenomenon, has uniformly dispersed solution components after dilution, has strong adhesion and high spreadability when being sprayed on the plant surface, and can resist rain wash.
Owner:SHANGHAI YUELIAN BIOLOGICAL TECH +1

Chemical palladium plating solution and application thereof, and chemical palladium plating method

The invention belongs to the technical field of circuit board surface treatment, and particularly relates to a chemical palladium plating solution and application thereof, and a chemical palladium plating method. The chemical palladium plating solution provided by the invention takes water as a solvent, and comprises the following solutes with the mass concentration: 1-10g / L of tetrammine palladium sulphate, 1-20g / L of sodium hypophosphite, 10-30g / L of a composite complexing agent and 10-30g / L of a composite stabilizer; the composite complexing agent comprises ethylenediamine, 2-amino-n-butylalcohol and 2-amino-2-methyl-1-propanol; and the composite stabilizer comprises methacrylic acid, butenoic acid and polyethyleneimine. The chemical palladium plating solution provided by the inventionhas relatively high activity, and a palladium plating layer with excellent performance can be obtained without cylinder dragging activation. According to the embodiment result, the chemical palladiumplating solution provided by the invention has good stability and relatively long service life; and the palladium plating layer obtained by chemical palladium plating through the chemical palladium plating solution provided by the invention has good corrosion resistance and bonding performance.
Owner:吉安宏达秋科技有限公司 +2

Metal-doped EDI-type zinc phosphate molecular sieve and synthesis method thereof

ActiveCN109279620AHas antiferromagnetic propertiesWell mixedMolecular-sieve metallophosphatesMolecular-sieve and base-exchange phosphatesPhosphorous acidNickel salt
The invention discloses a metal-doped EDI-type zinc phosphate molecular sieve. The molecular sieve is of a metal-doped zinc phosphate double-metal-atom molecular sieve structure and is of a block shape. The invention further discloses a synthesis method of the metal-doped EDI-type zinc phosphate molecular sieve. The synthesis method comprises the following steps: adopting a hydrothermal / solvothermal method, taking phosphorous acid as a phosphorus source, taking zinc acetate as a zinc source, carrying out doping respectively by using iron salt, cobalt salt and nickel salt ions, taking 1,2-diaminopropane as an organic template agent, taking isobutanol and deionized wate as a mixed solvent, carrying out uniform stirring under magnetic stirring according to a certain molar ratio to obtain a gel, putting the gel is put into a 25-ml polytetrafluoroethylene-lining hydrothermal reaction kettle, and carrying out crystallizing at a temperature of 180 DEG C for 3-7 days under a self-generated pressure to obtain the zinc phosphate molecular sieve which is doped with different ions and has an EDI configuration. The method provides a novel synthesis method for synthesizing the EDI-type zinc phosphate molecular sieve material, and the zinc phosphate molecular sieve which is doped with different metals and has the EDI configuration is synthesized. No other impurity phases are contained, and the three different metal-doped zinc phosphate EDI molecular sieve has an anti-ferromagnetic property
Owner:LIAONING TECHNICAL UNIVERSITY
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