23 results about "Branched chain alkene" patented technology

This invention relates to a polyurethane microcapsule emulsion, its preparation method, and its application. The raw materials for preparing the polyurethane microcapsule emulsion, by weight, include: 30-50 parts of unsaturated polyester polyol, 10-25 parts of isocyanate monomer, 3-6 parts of hydrophilic monomer, 2-5 parts of small molecule alcohol chain extender, 1.5-5 parts of neutralizing agent, 0.1-0.5 parts of organometallic catalyst, 20-50 parts of organic solvent, 5-15 parts of pesticide active ingredient, 3-10 parts of C6-C15 straight-chain or branched-chain olefin monomer, 0.1-0.5 parts of initiator, and 100-160 parts of water. The polyurethane microcapsule emulsion provided by this invention solves the problems of low crosslinking density, simple structural topology, insufficient hydrophobicity, and poor encapsulation stability of existing pesticide microcapsules, improving the controlled-release performance, capsule wall density, and emulsion system stability of the polyurethane microcapsule emulsion.

A process reacts olefins having 4 to 20 carbon atoms and the feed stream used, containing at least linear olefins and branched olefins, is distilled between two reaction steps and only the high-boiler phase obtained in this distillation is subjected to the second reaction, a heterogeneously catalysed hydroformylation, a homogeneously catalysed hydroformylation or a homogeneously catalysed alkoxycarbonylation.

A method for producing a (poly)alkylene glycol monoalkyl ether includes reacting an olefin and a (poly)alkylene glycol in a reactor in a presence of a catalyst. The method also includes recovering at least a portion of raw materials used for the production to use the recovered raw materials again as a raw material, where at least one of the recovered raw materials contains an olefin. A mass of a branched olefin relative to a mass sum of the branched olefin and a linear olefin contained in the recovered raw materials is controlled not to exceed 20 mass %.

A process reacts olefins having 4 to 20 carbon atoms and the feed stream used, containing at least linear olefins and branched olefins, is first separated into two streams A and B. Stream A is distilled before the reaction and only the high-boiler phase obtained in this distillation is subjected to the reaction, a heterogeneously catalysed hydroformylation, a homogeneously catalysed hydroformylation or a homogeneously catalysed alkoxycarbonylation.

The present invention relates to a process for the manufacture of a liquid additive comprising an amine of formula (1), wherein the process comprises the steps of: alkylating a phenyl-alpha-naphthylamine with an olefin selected from linear or branched C8-C12 olefins to obtain a first crude product comprising the amine of formula (1); distilling off unreacted olefins from the first crude product to obtain a second crude product; and distilling off unreacted phenyl-alpha-naphthylamine from the second crude product to obtain the liquid additive. The invention also relates to a liquid additive comprising an amine of formula (1) and a phenyl-alpha-naphthylamine wherein the liquid additive comprises at least 95 wt% of the amine of formula (1) and wherein the concentration of the phenyl-alpha-naphthylamine in the liquid additive is less than 0.2 wt%, preferably less than 0.1 wt%. The invention further relates to the use of the liquid additive, such as in lubricants.

Provided herein is a method for generating a lightly branched C13 oxo alcohol and utilizing it to produce a surfactant. The method includes contacting butylene feed stream and an optional propylene feed stream in the presence of a catalyst to produce lightly branched olefins. The lightly branched olefins are hydroformylated in the presence of a catalyst to produce C13 oxo alcohols. Further, the method includes contacting the lightly branched olefin feed stream with surfactant precursors in the presence of a catalyst, the contacting taking place under conditions to catalytically react the surfactant precursor and C13 branched oxo alcohol into a surfactant, making these surfactants particularly suitable for surfactant-based applications.

Provided herein is a method for generating a lightly branched C13 oxo alcohol and utilizing it to produce a surfactant. The method includes contacting butylene feed stream and an optional propylene feed stream in the presence of a catalyst to produce lightly branched olefins. The lightly branched olefins are hydroformylated in the presence of a catalyst to produce C13 oxo alcohols. Further, the method includes contacting the lightly branched olefin feed stream with surfactant precursors in the presence of a catalyst, the contacting taking place under conditions to catalytically react the surfactant precursor and C13 branched oxo alcohol into a surfactant, making these surfactants particularly suitable for surfactant-based applications.

The invention provides alkyl naphthalene lubricating oil as well as a preparation method and application thereof. According to the preparation method disclosed by the invention, naphthalene and byproduct olefin containing a branched chain structure are used as raw materials, solid acid is used as a catalyst, and alkylation reaction is performed to prepare the alkyl naphthalene lubricating oil. The preparation method has the advantages that the olefin conversion rate is high, the monosubstituted alkyl naphthalene selectivity is high, the reaction condition is mild, the device operation is simple, the branched olefin and the solid acid catalyst in the olefin byproduct can be recycled at high quality, the product is easy to separate, the corrosion to equipment is small, and the like. The alkyl naphthalene lubricating oil provided by the invention contains a branched chain structure obviously different from a long straight chain structure, and has excellent oxidation resistance.

The invention relates to the field of hydroformylation reaction, and discloses a method for hydroformylation of multi-branched olefin. The method comprises the following steps: in the presence of a cobalt-phosphine catalyst solution, introducing an olefin material containing triisobutylene and synthesis gas into a reactor for a contact reaction; the mass concentration of cobalt in the cobalt-phosphine catalyst solution is 0.01 wt%-2.0 wt%; the triisobutylene comprises alpha-triisobutylene and beta-triisobutylene in a mass ratio of 1: (1-2); the mass ratio of the cobalt-phosphine catalyst solution to the olefin material is (0.1-0.8): 1. The method provided by the invention is low in agent-oil ratio, remarkably improves the utilization rate of the reactor, is high in hydroformylation activity, and is especially suitable for highly branched olefin with large steric hindrance.

Provided herein is a method for generating a methyl-branched paraffin stream. The method that includes contacting a linear olefin feed stream with hydrogen in the presence of one or more bi-functional supported catalyst comprising a solid acid component and a hydrogenation component, the contacting taking place under conditions to catalytically isomerize the linear olefin feed stream into an intermediate stream comprising one or more branched olefins, wherein the linear olefin feed stream comprises an average carbon (C#) number that is between 18 and 26. Further, the method includes hydrogenating the one or more branched olefins to form an isoparaffin product comprising one or more methyl and ethyl -branched branched paraffins.

Process and apparatus for producing a hydrocarbon product from ethylene, the process comprising a) converting an ethylene stream by contacting the ethylene stream with an oligomerization catalyst in a first oligomerization reactor to produce a first stream of linear alpha olefins (LAO) in the C2-C20 range wherein at least 80 wt% has a Schultz-Flory distribution with a probability of chain growth (alpha) of 0.35-0.60, or a Poisson distribution with a probability of chain growth (lambda) of 1.0-4.7; the oligomerization catalyst is a homogeneous catalyst and comprises a transition metal compound or complex containing at least one of Ti, Zr, Cr and Ni and an alkyl aluminum compound which are dissolved in a hydrocarbon solvent or an ether solvent; or an aluminum alkyl compound dissolved in a hydrocarbon solvent or an ether solvent, optionally as a co-catalyst; b-1) separating the first stream of linear alpha olefins in the C2-C20 range into a second stream of C2 olefins, i.e., a separate ethylene (C2 =) stream, a third stream of C4-C6 olefins, and a fourth stream of C8 + olefins such as C8-C20 olefins; and b-2) recycling at least a portion of the second stream of C2 olefins from step b-1) to the first oligomerization reactor; c-1) converting the third stream of C4-C6 olefins from step b-1) under trimerisation conditions in a second oligomerisation reactor, i.e., a trimerisation reactor, by contacting the third stream of C4-C6 olefins from step b-1) with an oligomerisation catalyst, which is optionally the oligomerisation catalyst as defined in step a), to produce a fifth stream of branched C12-C18 olefins with a branching index (BI) higher than 0.30. The method may also include converting the fifth and fourth product streams to a synthetic paraffin kerosene (SPK). The invention also relates to a method for retrofitting an existing hydroprocessing plant.

Provided herein is a method for generating a hybrid composition with a linear alpha olefin and lightly branched olefin. The method includes contacting a lightly branched C12 olefin (e.g., linear dodecene, 2-methyl undecene, 3-methyl undecene, 4-methyl undecene, 5-methyl undecene, 6-methyl undecene, or any combination thereof) feed stream with a linear alpha olefin feed stream, wherein the linear alpha olefin feed stream comprises a carbon length (e.g., C8, C10, C12, C14, C16, C18, larger carbons, or any combination thereof) in the presence of a catalyst, the contacting taking place under conditions to catalytically react the olefins into a hybrid oligomer. Further, the method includes hydrogenating and fractionating the hybrid oligomer, thereby producing the hybrid composition. The hybrid compositions described herein are particularly suitable for lubricant applications.

To provide a fiber resin composite sheet which is excellent in water repellency and tack suppression effect, hardly produces wrinkles, folding marks and dents when folded, and has excellent resistance to repeated folding. The fiber-resin composite is made by impregnating one or more sheet-shaped short fiber aggregates with a resin composition, and the total basis weight of the short fiber aggregates is 5 g / m 2 More than 80g / m 2 or less, the average fiber length of the short fibers is 2 mm or more and 30 mm or less, the resin composition contains a 4-methyl-1-pentene copolymer (A) in which the content of structural units (P) derived from 4-methyl-1-pentene and the content of structural units (AQ) derived from a monomer selected from the group consisting of ethylene and linear or branched α-olefins having 3 to 20 carbon atoms are within a specific range, and the short fibers are exposed on at least one outer surface of the fiber composite.

A multilayer film includes a first layer (A), a third layer (C), and a second layer (B) sandwiched between the first layer (A) and the third layer. Each layer (A, B, C) includes at least one propylene polymer selected from propylene homopolymers, multiphase polymers, propylene copolymers having at least one comonomer selected from ethylene and linear or branched C4-C12 α-olefins, and mixtures thereof. In the second layer (B), the propylene polymer has a melt flow rate (MFR) of not more than 5 g / 10 min, wherein the melt flow rate is determined according to ISO 1133.

The invention relates to the technical field of separation of propylene and propane, in particular to an adsorbent and desorption agent composition for separating liquid-phase propylene and propane by a simulated moving bed. The adsorbent is a Pi complexing adsorbent containing cuprous, and the desorption agent is C4-C8 straight-chain or branched-chain olefin containing one or more C = C double bonds. The simulated moving bed adopting the series of adsorbent and desorption agent combination can be used for separating polymer-grade propylene with the purity of more than or equal to 99.5% from a liquid-phase propylene-propane mixture at the yield of more than or equal to 98%. And compared with the traditional common rectification and heat pump rectification, the separation energy consumption is respectively reduced by 85% and 50% or above.

The present invention relates to a method for producing a liquid additive containing an amine of formula (1), comprising the steps of: alkylating phenyl-alpha-naphthylamine with an olefin selected from linear or branched C8-C12 alkenes to obtain a first raw material product containing the amine of formula (1); removing unreacted olefin from the first raw material product by distillation to obtain a second raw material product; and removing unreacted phenyl-alpha-naphthylamine from the second raw material product by distillation to obtain a liquid additive. The present invention also relates to a liquid additive containing the amine of formula (1) and phenyl-alpha-naphthylamine, wherein the liquid additive contains at least 95% by weight of the amine of formula (1), and the concentration of phenyl-alpha-naphthylamine in the liquid additive is less than 0.2% by weight, preferably less than 0.1% by weight. The present invention further relates to the use of liquid additives in lubricants and the like.

What is described is a method of synthesis of the compound of formula 1A,or a salt thereof, whereinR3 is a linear or branched alkene of 1, 2, 3, 4, 5 or 6 carbons;R4 and R5 are the same or different, each a hydrogen, or a linear or branched alkyl of 1, 2, 3, 4, 5 or 6 carbons; andL3 is a bond or an alkane of 1, 2, 3, 4, 5 or 6 carbons.

The invention relates to a polyurethane microcapsule emulsion as well as a preparation method and application thereof. The polyurethane microcapsule emulsion is prepared from the following raw materials in parts by weight: 30 to 50 parts of unsaturated polyester polyol, 10 to 25 parts of isocyanate monomer, 3 to 6 parts of hydrophilic monomer, 2 to 5 parts of micromolecular alcohol chain extender, 1.5 to 5 parts of neutralizer, 0.1 to 0.5 part of organic metal catalyst, 20 to 50 parts of organic solvent, 5 to 15 parts of pesticide active ingredient and 3 to 10 parts of C6-C15 linear or branched olefin monomer. 0.1 to 0.5 part of an initiator; and 100 to 160 parts of water. The polyurethane microcapsule emulsion provided by the invention solves the problems of low crosslinking density, single structure topology, insufficient hydrophobicity, poor encapsulation stability and the like of the existing pesticide microcapsule, and improves the controlled release performance, capsule wall compactness and emulsion system stability of the polyurethane microcapsule emulsion.

The invention discloses a method for preparing ionic liquid-supercritical modified lubricating base oil, which is characterized in that waste transformer oil is utilized, dehydrogenation is realized through a molecular sieve platinum catalyst, the modified transformer oil is effectively reduced to obtain olefin or branched olefin, and the catalyst and a reaction product can be separated only by filtering; meanwhile, the ionic liquid is used as a catalyst, chain extension of the waste transformer oil is achieved, meanwhile, the ionic liquid has good fluidity in supercritical fluid, a strong acid site can be kept, generation of a polyalkyl side chain compound can be promoted, and polyalkyl naphthalene can be obtained without a high temperature. The polyalkyl naphthalene has better viscosity and lubricating property, is not easy to volatilize, can provide proper viscosity and lubricating property for processing liquid, is more suitable for being used as base oil than waste transformer oil, and can be used as base oil of cutting fluid.

The invention discloses a modification process of waste transformer oil for cutting fluid, which comprises the following steps: utilizing waste transformer oil, carrying out dehydrogenation isomerization, effectively reducing modified transformer oil to obtain branched chain olefin, and carrying out epoxidation and ring-opening esterification reaction to obtain high-viscosity polyol ester, so that the waste transformer oil is effectively recycled; and polyol ester capable of being used as base oil can be synthesized, and has lower evaporation loss rate and better lubricity. According to the method, formic acid hydrogen peroxide is adopted for epoxidation, operation is simple, one-pot synthesis can be achieved through subsequent ring opening esterification, and the utilization efficiency of materials is improved; phosphotungstic acid is adopted as a ring opening catalyst and an esterification catalyst, the ring opening esterification reaction can be effectively promoted, meanwhile, dehydrogenation isomerization is adopted, the recovery effect and application performance higher than those of a traditional recovery processing technology can be obtained, and the phosphotungstic acid can be used as base oil of cutting fluid.

The application discloses a light olefin skeleton isomerization catalyst and a preparation method and application thereof. The catalyst is prepared from small-grained B acid-rich HZSM-35 molecular sieves; the small-grained B acid-rich HZSM-35 molecular sieves have a sheet-shaped crystalline structure, the thickness of the crystal grains is less than 50 nm, and the length or width is less than 500 nm; the B acid content of the small-grained B acid-rich HZSM-35 molecular sieves is greater than 1.0 mmol / g; and the B acid content of the catalyst is greater than 0.9 mmol / g. The catalyst prepared from the small-grained B acid-rich HZSM-35 molecular sieves has high light olefin skeleton isomerization activity and selectivity, and can convert linear olefins into branched olefins at a relatively low reaction temperature.