12 results about "Isononyl alcohol" patented technology

The invention relates to the technical field of organic synthesis catalysts, and discloses an isononanoic acid catalyst as well as a preparation method and application thereof. The isononanoic acid catalyst comprises a carrier and an active component loaded on the carrier, the carrier is nitrogen-doped activated carbon; the active components comprise a first active component Au and a second active component; and the second active component is selected from one or more than two of Fe, Co and Ni. The isononanoic acid catalyst is higher in catalytic activity, not prone to inactivation and lower in catalyst cost, and meanwhile the preparation method of the isononanoic acid catalyst is mild in reaction condition and environmentally friendly in process; the isononanoic acid is prepared from isononyl alcohol by adopting the isononanoic acid catalyst, the participation of hydrogen peroxide is not needed, the whole process is safe and efficient, the isononanoic acid catalyst is easy to separate from a product, the post-treatment method is simple, the prepared isononanoic acid is higher in purity, and meanwhile, the isononanoic acid catalyst has higher isononanoic acid selectivity and isononyl alcohol conversion rate.

The present invention relates to a silicon wafer cutting fluid comprising a wetting agent, a dispersing agent, a lubricant and a solvent, wherein the wetting agent is an isononyl alcohol ethoxylate compound having an ethoxylation degree of 2 or 3. The present invention also relates to a method for preparing the silicon wafer cutting fluid, and a method for cutting a silicon wafer. The silicon wafer cutting fluid of the present invention can provide excellent wetting ability, especially excellent dynamic wetting ability, while ensuring low foaming, and can improve the yield of silicon wafers.

The invention relates to a sintering-resistant ruthenium-based catalyst, which consists of the following components in percentage by weight: 0.1 to 6 percent of ruthenium serving as a main active component, 0.15 to 9 percent of a porous metal oxide carrier and the balance of an auxiliary agent, the auxiliary agent is any one or a mixture of more than two of magnesium, calcium and vanadium; the porous metal oxide carrier is any one or a mixture of more than two of cerium oxide, zirconium dioxide and titanium dioxide. Meanwhile, the invention also discloses a preparation method and application of the catalyst. The preparation process is simple and easy to implement, the obtained catalyst has good sintering resistance and reaction stability, the reaction activity is efficient, the target product selectivity is good, and the catalyst can be used for producing the multi-branched isononanoic acid through high-selectivity oxidation of the multi-branched isononyl alcohol.

The present application relates to a kind of sintering-resistant ruthenium-based catalyst, which is composed of main active component ruthenium, porous metal oxide carrier and adjuvant, and the weight percentage composition is as follows: 0.1% to 6% of metallic ruthenium, 0.15% to 9% of adjuvant, and the balance is porous metal oxide carrier;The adjuvant is any one or more than two kinds of mixture of magnesium, calcium and vanadium;The porous metal oxide carrier is any one or more than two kinds of mixture of cerium oxide, zirconium dioxide and titanium dioxide. At the same time, the preparation method and application of the catalyst are also disclosed. The preparation process of the present application is simple and easy to implement, the obtained catalyst has good sintering resistance and reaction stability, and the reaction activity is high, the selectivity of target product is good, and it can be used for the high-selectivity oxidation of multi-branched isononyl alcohol to produce multi-branched isononyl acid.

This invention discloses a system and method for preparing isononol. The method of this invention involves directly introducing the product into a hydrogenation reactor after the carbonyl synthesis reaction. Utilizing the hydrogenation function of the carbonyl synthesis catalyst (which has both catalytic carbonyl synthesis and catalytic hydrogenation functions), the process parameters of temperature and pressure are adjusted, and hydrogen gas is bubbled in to hydrogenate isononaldehyde to isononol. This avoids the problem of difficult separation of isononaldehyde (which is easily polymerized and oxidized at high temperatures) from the catalyst in traditional processes.

The present application relates to a kind of heterogeneous catalyst and its preparation method and application in the preparation of cyclohexane dicarboxylic acid diisononyl ester, belong to the technical field of organic synthesis.The heterogeneous catalyst is with polymer microspheres as carrier, titanate as modification group, the polymer microspheres are by macromolecular Raft reagent, polymerization monomer, chain transfer agent and solvent are mixed, then the dispersion polymerization reaction of the oxidation-reduction system composed of oxidizing agent and reducing agent is obtained.The catalyst has multiple active sites, high catalytic activity, easy with product ester separation and other advantages.The heterogeneous catalyst can be esterified under high temperature to obtain cyclohexane dicarboxylic acid diisononyl ester.Under normal pressure, hexahydrophthalic anhydride, isononyl alcohol and heterogeneous catalyst are added to the reaction kettle, to obtain cyclohexane dicarboxylic acid diisononyl ester.

The invention discloses isononyl alcohol polyoxyethylene ether as well as a preparation method and application thereof, and relates to the technical field of surfactants. The invention relates to a preparation method of isononyl alcohol polyoxyethylene ether, which comprises the following steps: (1) adding isononyl alcohol and a catalyst into a reaction kettle, introducing nitrogen into the reaction kettle, heating and stirring; the catalyst is a modified carrier-loaded palladium-cobalt catalyst; (2) continuing to heat, adding ethylene oxide into the reaction kettle for reaction, and vacuumizing and dehydrating after the pressure and the temperature are constant; (3) continuously heating, and introducing ethylene oxide into the reaction kettle again until the pressure of ethylene oxide in the reaction kettle is constant; and (4) when the addition amount of the ethylene oxide reaches a theoretical value, stopping feeding the ethylene oxide, cooling, aging until the pressure is constant, filling nitrogen, and discharging to obtain the isononyl alcohol polyoxyethylene ether. The isononyl alcohol polyoxyethylene ether prepared by the method disclosed by the invention has a relatively high polymerization degree and a relatively low molecular weight distribution coefficient.

The application belongs to the technical field of catalysts, and particularly relates to a molecular sieve loaded DMC catalyst and a preparation method and application thereof. The preparation method of the molecular sieve loaded DMC catalyst comprises the following steps: S1: dissolving zinc chloride, heat preservation and stirring to obtain solution A; S2: dissolving divalent metal potassium cyanide, stirring to obtain solution B; S3: adding ethyl acetoacetate and molecular sieve into water, ultrasonic stirring to obtain solution C; S4: simultaneously dropping solution A and solution B into solution C, heat preservation and stirring, and then centrifuging, washing and vacuum drying to obtain the molecular sieve loaded DMC catalyst. The molecular sieve loaded DMC catalyst prepared by the application has excellent catalytic activity and can efficiently catalyze the preparation of isononyl alcohol based non-ionic surfactant.

The invention provides a production device and a production method of diisononyl phthalate. The diisononyl phthalate production device comprises a feeding system, at least one esterification reaction kettle and a dealcoholization tower which are sequentially connected, the operation temperature of the esterification reaction kettle is 200-250 DEG C; and / or the operation pressure of the esterification reaction kettle is 0-0.05 MPaG; and / or the operation pressure of the dealcoholization tower is 6-12 KPaA. According to the invention, after the high-temperature liquid in the esterification reaction kettle enters the dealcoholization tower, the isononyl alcohol with a lower boiling point and water are quickly vaporized and then transferred into a subsequent separation system, so that the dealcoholization and dehydration purposes are realized under the condition that an external heat source is not arranged.

The application relates to a process for producing C9 alcohols, preferably isononanol, from butene-containing hydrocarbon streams. The process comprises oligomerization of the butenes, hydroformylation of the oligomerization products to C9 aldehydes, preferably isononanal, and hydrogenation of the C9 aldehydes to obtain the C9 alcohols, preferably isononanol.

The application provides an isononyl alcohol hydroformylation reactor and relates to the technical field of isononyl alcohol hydroformylation reactors.The isononyl alcohol hydroformylation reactor comprises a shell, the lower part of the shell is provided with a reactant inlet, and the upper part of the shell is provided with a reactant outlet on the side wall; a distribution device is arranged in the shell and is arranged above and spaced from the reactant inlet, and is used for uniformly distributing a gas-liquid reaction medium; a heat-removing distribution structure is arranged in the shell and is arranged above and spaced from the distribution device, and the heat-removing distribution structure comprises an inner tube box, an outer tube box, a plurality of heat exchange tubes and at least one distribution plate; the problems that there is no internal component in the gas-liquid upflow type bubbling bed reactor in the prior art, gas cannot be distributed and heat cannot be removed, and the conversion rate of the reaction is low are solved.

This invention discloses a Pt-S-1 molecular sieve catalyst, its preparation method, and its application in the oxidation of isononanol to prepare isononanoic acid and / or isonononate. The catalyst uses an all-silica S-1 molecular sieve as a support, with Pt as the active component. The support contains both micropores and mesopores, with Pt uniformly dispersed within them. The Pt content in the catalyst is 0.004 wt% to 0.50 wt%, obtained through a secondary crystallization process. The catalyst offers advantages such as high precious metal utilization efficiency, mild reaction conditions, no need for alkali or additives, simple post-treatment, and convenient recycling.