88results about How to "High oligomerization reactivity" patented technology

The invention provides an ethylene oligomerization catalyst, which comprises Zr(OBu)Cl3, SiClx-1R4-x(OBu), BuOH and SiClxR4-x in a mole ratio of 1:(0.5-5.0):(0-5.0):(0-20), wherein Bu is butyl; R is alkyl of C1 to C4 or aryl of C6 to C8; and x is an integer from 1 to 4. The catalyst has high reaction activity in an ethylene oligomerization reaction, a plurality of long chain hydrocarbons of C12 to C20 exist in an oligomerization product and the yield of alpha-olefin is high.

The invention relates to a load-type olefin oligomerization catalyst, which comprises a complex and an organic aluminum compound loaded on a medium-pore aluminum silica material and having an expression shown as formula (I). The catalyst contains 0.5 to 5.0 mass percent of nickel and 20 to 30 mass percent of aluminum; in the formula (I), R is selected from hydrogen, alkyl of C1 to C2, alkoxy or nitryl of C1 to C6, X is halogen or acetate moiety, and n is 1 or 2; the medium-pore aluminum silica material has a pseudo-boehmite phase structure, and comprises the anhydrous chemical composition based on the mass of oxide of (0-0.3)Na2O.(40-90)Al2O3.(10-60)SiO2, the specific surface area of the anhydrous chemical composition is between 200 and 400m<2>/g, the pore volume is between 0.5 and 2.0 ml/g, the average aperture is between 8 and 20nm and the most probable aperture is between 5 and 15nm. The catalyst is matched with the alkyl aluminum for olefin oligomerization, and higher reaction activity.

The invention relates to a preparation method of poly-alpha-olefin base oil. The method comprises the following steps: S1, catalyzing an oligomerization reaction of an alpha-olefin mixture for 3-8 hours by using a Cr-AlCl3/Al2O3 immobilized catalyst at a temperature of 50-120 DEG C under a pressure of 0.1-1.0 MPa and an alpha-olefin/solvent volume ratio of (1:0)-(1:1); and S2, after the reaction is stopped, filtering the catalyst, washing with distilled water, carrying out atmospheric distillation to remove the solvent, carrying out reduced pressure distillation to remove the unreacted alpha-olefin and part of the alpha-olefin dimer, and carrying out hydrogenation to obtain the poly-alpha-olefin base oil. The invention also relates to the poly-alpha-olefin base oil prepared by the method.The PAO base oil prepared by the method does not need to be mixed with low-viscosity PAO oil for PAO with a kinematic viscosity range of 30-40 mm<2>/s at 100 DEG C, so that the volatility of lubricating oil can be greatly reduced.

The invention discloses a catalyst composition for ethylene oligomerization. The catalyst composition comprises chlorinated-2-n-propiono-1,10-phenanthroline amine iron (II) which is shown in a formula (I) as described in the specification and is used as a main catalyst, an aluminum-containing cocatalyst, water and an organic solvent. In the formula (I), R1 to R5 are independently selected from the group consisting of hydrogen, C1-6 alkyl groups, halogen, C1-6 alkoxy groups and a nitro group. According to the invention, the catalyst composition consisting of the complex main catalyst as shown in the formula (I), the aluminum-containing cocatalyst, water and the organic solvent is adopted for ethylene oligomerization, so high oligomerization reaction activity and high selectivity of alpha-olefin are obtained, and rapid initiation, stable operation and good repeatability of oligomerization are realized; even under the condition of a low aluminum/iron ratio, good oligomerization reaction activity is maintained, so technical biases of the skilled in the art are overcome and unexpected technical effects are obtained.

The invention provides a catalyst composition for ethylene oligomerization, which comprises a main catalyst of chlorinated 2-formyl-1,10-phenanthroline aminal iron (II) complex as shown in formula I, an aluminium-containing cocatalyst, water, and an organic solvent. When the catalyst composition of the invention is used in ethylene oligomerization reaction process, the catalyst compoeition has very high oligomerization reactivity, the selectivity for alpha-olefins is high, and the oligomerization reaction is rapid in initiation, stable in operation, and good in repeatability; even if the aluminium/iron ratio is low, the oligomerization reactivity is very good, so the cost of the ethylene oligomerization is greatly reduced, and the catalyst composition is strong in practicality, and wide in industrialization prospects.

The invention relates to an ethylene oligomerization catalyst composition which comprises a chloride 2-benzoxazolyl-6-acetyl condensed amino ferrite (II) complex shown in formula I, an aluminum-containing promoter and tert-butyl hydroperoxide. The invention further provides an ethylene oligomerization method. The ethylene oligomerization catalyst composition provided by the invention is applied to ethylene oligomerization, and is high in reaction activity at low temperature in the presence of low Al/Fe, that is, the reaction activity is up to 1.62*10<7>g.mol (Fe)<1>.h<1>.

The invention discloses an ethene oligomerization continuous reaction method. The method comprises that a main catalyst 2, 6-diacetylpyridine(anil)FeCl2 shown in the formula (I), an aluminum-containing cocatalyst and an organic solvent are added into aqueous ethene as a raw material. The catalyst is used for an ethene oligomerization reaction process, has very high oligomerization reaction activity and high alpha-ethene selectivity, realizes fast oligomerization reaction initiation, stable reaction process and good repeatability and still has very good oligomerization reaction activity at a low aluminum/iron ratio. The ethene oligomerization continuous reaction method overcomes technology biases of the technicist in the field, produces unforeseeable technical effects, realizes good balance of catalysis effects and a cost, greatly reduces an ethene oligomerization reaction cost and has good practicality and a wide industrial application prospect.

The invention discloses an ethylene oligomerization method. Ethylene is subjected to oligomerization in a reaction system consisting of n-propiono-substituted-1,10-phenanthroline amine iron (II) which is shown in a formula (I) as described in the specification and is used as a main catalyst, an aluminum-containing cocatalyst, water and an organic solvent. The solvent is alpha-olefin of Cn (n is greater than 4 and no less than 10). In the formula (I), R1 to R5 are independently selected from the group consisting of hydrogen, C1-C6 alkyl groups, halogen, C1-C6 alkoxy groups and a nitro group. The method overcomes technical biases, optimizes ethylene oligomerization process, has high oligomerization activity, enables rapid initiation, stable operation, low toxicity and environmental protection of the ethylene oligomerization process to be realized, allows good balance to be reached between a catalytic effect and cost and has good practicality; moreover, the method enables cost for ethylene oligomerization to be greatly decreased and has wide industrial prospects in overall consideration of the catalytic effect and production cost.

The invention discloses an ethene oligomerization continuous reaction method. The method comprises that a main catalyst 2-benzoxazolyl-6-acetyl(anil)FeCl2 shown in the formula (I), an aluminum-containing cocatalyst and an organic solvent are added into aqueous ethene as a raw material. The catalyst is used for an ethene oligomerization reaction process, has very high oligomerization reaction activity and high alpha-ethene selectivity, realizes fast oligomerization reaction initiation, stable reaction process and good repeatability and still has very good oligomerization reaction activity at a low aluminum/iron ratio. The ethene oligomerization continuous reaction method overcomes technology biases of the technicist in the field, produces unforeseeable technical effects, realizes good balance of catalysis effects and a cost, greatly reduces an ethene oligomerization reaction cost and has good practicality and a wide industrial application prospect.

The invention discloses a catalyst composition for ethylene oligomerization. The catalyst composition comprises chlorinated-2-isobutyryl-1,10-phenanthroline amine iron (II) which is shown in a formula (I) as described in the specification and is used as a main catalyst, an aluminum-containing cocatalyst, water and an organic solvent. In the formula (I), R1 to R5 are independently selected from the group consisting of hydrogen, C1-C6 alkyl groups, halogen, C1-C6 alkoxy groups and a nitro group. With the oligomerization catalyst composition and method provided by the invention for ethylene oligomerization, technical biases are overcome, ethylene oligomerization process is optimized, high oligomerization activity is obtained, the application amount of the cocatalyst is small, rapid initiation and stable operation of ethylene oligomerization process are realized, good balance is reached between a catalytic effect and cost, good practicality is obtained, and cost for ethylene oligomerization is greatly decreased; in overall consideration of the catalytic effect and production cost, the catalyst has wide industrial prospects.

The invention discloses an ethene oligomerization continuous reaction method. The method comprises that a main catalyst 2, 8-diacetylquinoline(anil)FeCl2 shown in the formula (I), an aluminum-containing cocatalyst and an organic solvent are added into aqueous ethene as a raw material. The catalyst is used for an ethene oligomerization reaction process, has very high oligomerization reaction activity and high alpha-ethene selectivity, realizes fast oligomerization reaction initiation, stable reaction process and good repeatability and still has very good oligomerization reaction activity at a low aluminum/iron ratio. The ethene oligomerization continuous reaction method overcomes technology biases of the technicist in the field, produces unforeseeable technical effects, realizes good balance of catalysis effects and a cost, greatly reduces an ethene oligomerization reaction cost and has good practicality and a wide industrial application prospect.

The present invention discloses an ethylene oligomerization method, which comprises that ethylene is subjected to an oligomerization reaction in a reaction system containing an iron 2-benzoyl-1,10-phenanthroline polyamine chloride coordination compound main catalyst represented by a formula (I), an aluminum-containing cocatalyst, water and an organic solvent, wherein the organic solvent is alpha-olefin of Cn (n is more than 4 and is less than or equal to 10), and in the formula, R1-R5 are respectively and independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitro. According to the present invention, the technical prejudice is overcome, and the oligomerization reaction process is optimized, such that the oligomerization activity is high, the ethylene oligomerization reaction process has characteristics of rapid initiation, stable operation, low toxicity, environmental protection, good catalysis effect and cost balancing, and strong practicality, the ethylene oligomerization reaction cost is substantially reduced, the catalytic effect and the production cost are comprehensively considered, and the industrial prospect is broad.

The invention discloses a catalyst composition for an ethylene oligomerization reaction technology. The catalyst composition comprises a main catalyst, chlorination 2-acetyl-1,10-phenanthroline amine iron (II) complex, an aluminiferous promoter, water and an organic solvent. According to the invention, the catalyst composition is adopted for the ethylene oligomerization reaction technology, and has very high oligomerization reaction activity; alpha-olefin is high in selectivity, and the oligomerization reaction is triggered rapidly, runs stably and is good in repeatability; even though the aluminum/ferrum ratio is low, the catalyst composition still has very good oligomerization reaction activity, so that the technical prejudice of technicians in the field is overcome, unexpected technical effects are obtained, and the catalytic effect and cost are balanced well; therefore, the cost of the oligomerization reaction is lowered greatly, and the catalyst composition is high in practicability, and has wide industrial prospect.

The invention discloses a catalyst composition for ethylene oligomerization. The catalyst composition comprises a main catalyst (cyclopentadienyl) titanium chlorinated 2-(2-benzimidazolyl)-8-acetanilide quinoline complex as shown in a formula (I) which is described in the specification, an aluminum-containing cocatalyst, water and an organic solvent. The catalyst composition has high oligomerization reaction activity and high alpha-alkene selectivity when applied to ethylene oligomerization, and oligomerization reaction is rapidly initiated, runs stably and has good repeatability; even under the condition of a low aluminum/titanium ratio, good oligomerization reaction activity is maintained; thus, technical biases of the skilled in the art are overcome, unexpected technical effects are obtained, catalysis effect and cost are better balanced, cost for ethylene oligomerization is greatly reduced and the catalyst has good practicality and wide industrialization prospects.