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

The invention discloses a preparation method of poly alpha-olefin (PAO) base oil with high viscosity index. Suitably, the method comprises the steps of: with ethylene and isobutene and other alpha-olefin of C6-C12 as raw materials and under the conditions of temperature of 20 DEG C-60 DEG C and partial hydrogen pressure of 0.3-0.5, loading a copper (II)-organic aluminum immobilized catalyst with gama-Al2O3, catalyzing ethylene / isobutene / alpha-olefin of C6-C12 for an oligomerization reaction for 2-4 hours by taking tert-butyl chloride as a catalyst promoter, and carrying out washing in water, drying, atmospheric distillation and reduced-pressure distillation on the product to obtain an olefin oligomer; and then under the conditions of temperature of 200 DEG C-280 DEG C, pressure of 2.5-5.0MPa, idle speed of 0.4-1.0h<-1>, and hydrogen-to-oil of 500:1, hydrogenating the oligomer through an Mo-Ni / gama-Al2O3 catalyst to obtain PAO (poly alpha olefin) base oil. According to the method, the yield of the PAO base oil is large, the kinematic viscosity of the oligomer is 27.8-42.4.0mm<2> / s at 100 DEG C, the viscosity index is 147-171, the pour point is minus 37 DEG C-minus 47 DEG C, and the bromine value is less than 0.050 bromine g / 100gPAO.

The invention discloses an olefin oligomerization catalyst and a preparation method thereof. The catalyst is prepared from the following ingredients through being metered by the mass of oxides: 81.0 to 96.0 weight percent of aluminum oxide carriers with macroporous structures (carriers use chitosan as pore-enlarging agents), 2.5 to 11.5 weight percent of active ingredients of ferric sulfate and 1.5 to 7.5 weight percent of nickel sulfate. The olefin oligomerization catalyst has the advantages that the oligomerization activity is high; the dioolymer selectivity is high; the trimer selectivity is low; the operation period of the catalyst is long.

The invention discloses a low-cost PAO (poly-alpha-olefin) base oil and a preparation method thereof. The preparation method comprises the following steps: carrying out oligomerization reaction on raw materials isobutylene and C8-C12 alpha-olefins at 50-80 DEG C under the hydrogen partial pressure of 0.25-0.4 MPa and the reaction pressure of 0.5-1.0 MPa by using gamma-aluminum oxide (gamma-Al2O3)-supported nickel (II)-organic aluminum as a catalyst and tert-butyl chlorine as a cocatalyst, and carrying out after-treatment to obtain oligomers; and hydrogenizing the oligomers to obtain the PAO base oil. The C8-C12 alpha-olefin content in the obtained PAO base oil is 60-81 omega%, the number-average molecular weight of the base oil is less than 550, the molecular weight distribution is less than 15, the 100 DEG C kinematic viscosity is 8.8-28.0 mm<2> / s, the viscosity index is 121-147, the pour point is -38 to -52 DEG C, and the bromine number is less than 0.050 bromine g / 100g PAO.

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 discloses an ethylene oligomerization reaction method; with adopting of water-containing ethylene as a raw material, and under the action of a main catalyst chloro-2-(1H-2-benzoimidazole)-8-acetanilide quinoline chromium (III) complex represented by the formula (I), an aluminum-containing co-catalyst and an organic solvent, an ethylene oligomerization reaction is performed; according to the method, the method is used for the ethylene oligomerization reaction process, the oligomerization reaction activity is high, the selectivity of alpha-olefin is high, the oligomerization reaction is fast to initiate, the operation is smooth and steady, and the repeatability is good; even when the aluminum / chromium ratio is low, the catalyst still has good oligomerization reaction activity; therefore, the technical prejudice of technical personnel in the field is overcome, unexpected technical effects are obtained, and the catalytic effect and cost are better balanced, so that the cost of the ethylene oligomerization reaction is significantly decreased, the practicality is high, and the prospects for industrialization are broad.

The invention discloses an oligomerization method of ethylene. The ethylene carries out oligomerization reactions in a reaction system composed of a main catalyst, an aluminum-containing co-catalyst, water and an organic solvent; wherein the main catalyst is chlorinated 2-n-butyryl-1,10-phenanthroline amine-Fe (II) represented by the formula (I), the organic solvent is alpha-alkene with n carbons (4<n<=10), and in the formula (I), and the R1, R2, R3, R4, and R5 individually represent a hydrogen atom, an alkyl group with a carbon number of 1 to 6, a halogen atom, an alkyloxy group with a carbon number of 1 to 6, or a nitro group. The provided oligomerization method overcomes the technical bias, and optimizes the oligomerization technology. In the provided method, the oligomerization activity is high, thus the ethylene oligomerization reactions can be triggered rapidly, the operation of the technology is stable, the method is environment-friendly, the toxicity is greatly reduced, the catalytic effect and cost are well balanced, the provided method is very practical and greatly reduces the ethylene oligomerization cost, the catalytic effect and production cost are taken into account as a whole, and the industrialization prospect of the oligomerization method is wide.

The invention discloses a load-type olefin oligomerization catalyst, which comprises a complex loaded on a medium-pore aluminum silica material and having an expression shown as formula (I). The catalyst contains 0.1 to 5.0 mass percent of nickel; in the formula (I), R is selected from hydrogen, alkyl of C1 to C12, 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 medium-pore aluminum silica material 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 used for olefin oligomerization and has higher reaction activity; and oligomerization products have wider distribution range without generating polymers.

The invention discloses an ethene oligomerization continuous reaction method. The method comprises that a main catalyst 2-acetyl-6-(1H-benzimidazolyl)(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 method for oligomerization of ethylene. The ethylene is subjected to oligomerization in a reaction system containing a primary catalyst, an aluminum-containing cocatalyst, water and an organic solvent, wherein the primary catalyst is a complex of 2-acetyl-1,10-phenanthroline (2,6-diisopropylanil)FeCl2, the formula (I) of the complex is as shown in the specification, the organic solvent is the alpha-olefin of Cn (n is more than 4 and less than or equal to 10), and in the chemical formula, R1-R5 are independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitryl. The method disclosed by the invention has the advantages that the technical prejudice can be overcome, the process for oligomerization of ethylene can be optimized, the ethylene has high oligomerization activity, the oligomerization of ethylene can be initiated rapidly and operated stably and is hypo-toxic and environment-friendly, the catalytic effect and the production cost can be comprehensively considered and well balanced and the oligomerization cost of ethylene can be reduced greatly. In addition, the method disclosed by the invention is highly practical and has a broad industrial prospect.

The invention discloses a load-type olefin oligomerization catalyst, which comprises a complex loaded on a medium-pore aluminum silica material and having an expression shown as formula (I). The catalyst comprises 0.1 to 5.0 mass percent of nickel; in the formula (I), R is selected from hydrogen, C1 to C12 alkyl, C1 to C6 alkoxy or nitryl, X is halogen or acetate moiety, and n is 1 or 2; themedium-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 medium-pore aluminum silica material 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 used for olefin oligomerization and has higher reaction activity; and oligomerization products have wider distribution range without generating polymers.

The invention discloses a catalyst composition used for an ethylene oligomerization reaction technology. The composition comprises a main catalyst 2-acetyl-6-(1H-2-benzoxazolyl)aminochloro iron (II) complex represented by formula (I), an aluminum-containing cocatalyst, water and an organic solvent. The catalyst composition prepared in the invention is used in the ethylene oligomerization reaction technology, has the advantages of very high oligomerization reaction activity, high selectivity of alpha-olefin, rapid initiation of the oligomerization reaction, stable running and good repeatability, still has very good oligomerization reaction activity even if the aluminum / iron ratio is low, so the technical prejudice of technical personnel in the field is overcome, an unexpected technical effect is achieved, and the catalysis effect and the cost are well balanced, thereby the ethylene oligomerization reaction cost is greatly reduced, the practicality is strong, and the industrial prospect is wide.

The invention discloses an oligomerization method of ethylene. The ethylene carries out oligomerization reactions in a reaction system composed of a main catalyst, an aluminum-containing co-catalyst, water and an organic solvent; wherein the main catalyst is chlorinated 2-n-butyryl-1,10-phenanthroline amine-Fe (II) represented by the formula (I), the organic solvent is alpha-alkene with n carbons (4<n<=10), and in the formula (I), and the R1, R2, R3, R4, and R5 individually represent a hydrogen atom, an alkyl group with a carbon number of 1 to 6, a halogen atom, an alkyloxy group with a carbon number of 1 to 6, or a nitro group. The provided oligomerization method overcomes the technical bias, and optimizes the oligomerization technology. In the provided method, the oligomerization activity is high, thus the ethylene oligomerization reactions can be triggered rapidly, the operation of the technology is stable, the method is environment-friendly, the toxicity is greatly reduced, the catalytic effect and cost are well balanced, the provided method is very practical and greatly reduces the ethylene oligomerization cost, the catalytic effect and production cost are taken into account as a whole, and the industrialization prospect of the oligomerization method is wide.

The invention discloses a catalyst composition for an ethylene oligomerization reaction process. The catalyst composition contains a main catalyst represented by a formula I shown in the description, i.e., a chlorinated 2,6-di(2-benzimidazoyl)pyridine chromium (III) complex, an aluminiferous cocatalyst, water and an organic solvent. According to the catalyst composition, the catalyst composition disclosed by the invention is applied to the ethylene oligomerization reaction process and has very high oligomerization reaction activity and high alpha-olefin selectivity, and the oligomerization reaction is high in initiating speed, stable in operation and good in repeatability; even if the Al / Cr ratio is low, the catalyst composition has very good oligomerization reaction activity; and thus, the technical prejudice of those skilled in the art are overcome, an unexpected technical effect is achieved, and the catalysis effect and the cost are better balanced, so that the cost of ethylene oligomerization reaction is reduced greatly, the practicability is high, and the industrialization prospect is broad.

The invention discloses a catalyst composition for an ethylene oligomerization reaction technology and an application of the catalyst composition. The composition comprises a main catalyst, namely a chlorination substituted-2-benzoyl-1,10-phenanthroline poly-2,6-diethylaniline ferrum (II) complex shown as formula (I) as shown in the specification, an aluminiferous promoter and tert-butyl hydroperoxide. When the catalyst composition is used for the ethylene oligomerization reaction technology, the catalyst composition has very high oligomerization reactivity and high alpha-olefin selectivity; an oligomerization reaction is initiated rapidly, runs steadily, and is good in repeatability; even at a low aluminum / ferrum ratio, the catalyst composition has very good oligomerization reactivity; technical prejudice of those skilled in the art is overcome; unexpected technical effects are obtained; a catalytical effect and cost are balanced better; the cost of the ethylene oligomerization reaction is greatly lowered; and the catalyst composition has strong practicability and wide industrialization prospects.

The invention discloses an ethylene oligomerization method. The method comprises the following steps: performing oligomerization reaction on ethylene in a reaction system which comprises a chloridized 2-acetyl-1,10-phenanthroline amine iron (II) complex main catalyst shown by a formula (I) in the specification, an aluminum-containing promoter, water and an organic solvent. According to the method disclosed by the invention, ethylene oligomerization reaction has relatively high oligomerization reaction activity and high alpha-olefin selectivity, and still has relatively good oligomerization reaction activity even under the condition of low Al / Fe ratio; and in addition, even the oligomerization reaction is performed at relatively low temperature, the relatively high oligomerization reaction activity can still be achieved. Moreover, in an oligomerization reaction process, the ethylene oligomerization method disclosed by the invention is rapid in reaction initiation, stable in operation and good in repeatability, and thus the technical biases of those skilled in the art can be overcome, unexpected technical effects can be achieved, and wide industrial prospects can be provided.

The invention discloses a catalyst composition for an ethylene oligomerization reaction process. The catalyst composition comprises a main catalyst shown in formula I, namely a 2,6-di(2-benzimidazolyl) pyridine chromium (III) complex, an aluminum-containing promoter and tert-butyl hydroperoxide. The catalyst composition disclosed by the invention is applied to the ethylene oligomerization reaction process, is very high in oligomerization reaction activity, high in alpha-olefin selectivity, is rapid in oligomerization reaction initialization speed, stable in operation and good in repeatability, and is still very good in oligomerization reaction activity even in a low aluminum / chromium ratio, so that technical prejudice of operators of the field is overcome, unforeseeable technical effects are achieved, catalysis effects and cost are relatively well balanced, the ethylene oligomerization reaction cost is greatly reduced, and the catalyst composition is good in practicability and wide in industrialization prospect.