CN105622798A - Catalyst component for olefin polymerization, preparation method and applications thereof - Google Patents
Catalyst component for olefin polymerization, preparation method and applications thereof Download PDFInfo
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Abstract
The present invention relates to a small pore size catalyst component for olefin polymerization or copolymerization, and a preparation method thereof. According to the present invention, a magnesium halide is dissolved in an organic epoxy compound, an organic phosphorus compound and an inert diluent and a silane compound can further be added to form a uniform solution, the obtained uniform solution and a titanium halide or a titanium derivative are subjected to a reaction in the presence of a co-precipitating agent, a titanium ester compound is added before the magnesium/titanium-containing solid precipitate is precipitated, an electron donor is loaded or is not loaded on the solid precipitate after the solid precipitate is formed, and washing is performed with an inert diluents so as to obtain the product; the catalyst component has characteristics of smooth particle surface, less cracks and an average pore size of less than or equal to 2 nm; when the catalyst component is used for propylene polymerization and copolymerization, the fine powder content in the powder material is low; and the catalyst component is suitable for slurry methods, bulk methods, gas phase methods, and other polymerization processes.
Description
Technical field
The present invention relates to a kind of small-bore catalytic component for olefinic polymerization or combined polymerization and preparation method thereof and the application in olefinic polymerization or combined polymerization thereof. Specifically, a kind of small-bore catalytic component for propylene polymerization or combined polymerization and preparation method thereof and the application in propylene polymerization or combined polymerization thereof are related to.
Background technology
Catalytic component for olefinic polymerization or combined polymerization is disclosed, and this kind of catalytic component generally comprises following a few compounds: magnesium compound, titanium compound and oxygen containing electron donor compound. Generally containing magnesium, chlorine, titanium and oxygen containing electron donor compound in catalytic component product, although different preparation methoies causes that in product, constituent content is different, but catalytic component is all be made up of the fine particle that mean diameter is 2��100 microns, particle surface also has similar loose structure, and its average pore size is in 2��100 nanometer range.
Over nearly 20 years, patent documentation for the catalytic component aspect of olefinic polymerization or combined polymerization is more, it is concentrated mainly on oxygen containing electron donor compound aspect, benzoic acid monoesters from early stage, to bis phthalate, then arrive diether compound, succinate compounds, diol-lipid compound. Catalytic component containing these electron donor compounds possesses better performance, has higher activity and capacity of orientation, and the polyolefin products produced is with the obvious advantage in ash, structural regularity, molecular weight distribution etc. The research of electron donor compound is always up the Main way in this field.
In the last few years, new polymerization technique device puts into operation successively, the particulates' properties of polyolefine powder product is proposed new requirement, as polypropylene gas-phase polymerization process device capbility increases quickly, these matching requirements polyolefine powder mobility of particles are good, and fine powder is few, because friction can produce electrostatic between granule, fine powder content in polymer powders is relatively big on plant running impact, and fine powder content height can increase the cleaning frequency of bag hose; Additionally, due to gas-phase polymerization polypropylene technique to remove thermal effect poorer than substance law and slurry method, fine powder content height can increase the risk of caking in polymeric kettle; Therefore the fine powder produced in gas-phase polymerization polypropylene technological requirement polymerization catalyst process is as far as possible few, in order to avoid affecting the long-term operation of device.
In polyolefine powder, fine powder is from two aspects, and a part is that catalytic component is broken in the course of the polymerization process to be produced; A part is that between powder particles, friction produces. Controlling well on broken basis, reduce ideally polyolefine powder being made of fine powder ganoid spherical, polyolefine powder grain shape is the reproduction of catalyst component particles shape, and therefore, in powder, fine powder content is relevant to catalyst component particles configuration of surface.
The patent of catalyst component particles configuration of surface improvement aspect is rare, directly characterizes the less of particle shape, and major part patent documentation is to reduce, by fine powder in powder, the improvement speculating catalytic component particle shape.
Therefore, in the urgent need to finding a kind of good catalytic component of particle surface form, polymer powders prepared by this catalytic component does not crush in the course of the polymerization process, and the friction between granule is less, the fine powder produced is few, is conducive to the operation steady in a long-term of polyplant.
Summary of the invention
The technical problem to be solved in the present invention there is provided a kind of small-bore catalytic component for olefinic polymerization or combined polymerization and preparation method thereof. This small-bore catalyst component particles configuration of surface is good, and smooth surface, crackle are few, and average pore size is below 2 nanometers. During for propylene polymerization and combined polymerization, in powder, fine powder content is little, and other performance is as also good in activity, capacity of orientation, hydrogen regulation performance etc., is the good catalytic component of combination property.
A kind of catalytic component for olefinic polymerization or combined polymerization, by magnesium halide be dissolved in organic epoxy compound thing, organic phosphorus compound dicyandiamide solution and form homogeneous solution, react with gained homogeneous solution with the halogenide or derivatives thereof of titanium under precipitation additive exists, titanium esters compounds is added before precipitation of solid material containing magnesium titanium under low temperature precipitating out, the back loading of precipitation of solid material formation or not load electron donor compound, obtain the catalytic component of the present invention with inert diluent after washing.
Described magnesium halide is magnesium dihalide, the water of magnesium dihalide and the complex of alcohol, and in magnesium dihalide molecular formula, one of them halogen atom is by the one in the replaced derivant of alkyl or oxyl, or their mixture. Above-mentioned magnesium dihalide is particularly as follows: magnesium dichloride, dibrominated magnesium, magnesium diiodide, it is preferable that magnesium dichloride.
Described organic epoxy compound thing is selected from including the carbon number aliphatic alkene 2��8, alkadienes or the compound such as halogenated aliphatic alkene or the oxide of alkadienes, glycidyl ether and inner ether. Concrete such as oxirane, expoxy propane, epoxy butane, butadiene oxide, butadiene double oxide, epoxychloropropane, methyl glycidyl ether, diglycidyl ether etc.
Described organic phosphorus compound is selected from hydrocarbyl carbonate or the halohydrocarbyl ester of orthophosphoric acid or phosphorous acid, for instance: orthophosphoric acid trimethyl, orthophosphoric acid triethyl, orthophosphoric acid tributyl, orthophosphoric acid triphenylmethyl methacrylate, NSC 6513, NSC 5284, tributyl phosphite, phosphorous acid benzene methyl etc.
The dissolution system of organic epoxy compound thing and organic phosphorus compound can also add silane compound. The formula of described silane compound is RnSi(OR1)4-n, 0��n��4, R and R in formula1For alkyl of the same race or not of the same race, cycloalkyl, aryl, halogenated alkyl etc., R can also be halogen or hydrogen atom. Such as: four butoxy silanes, tetraethoxysilane, diphenyl diethoxy silane, dimethoxydiphenylsilane, propyl trimethoxy silicane, propyl-triethoxysilicane, Cyclohexyl Methyl Dimethoxysilane, cyclohexyl methyl diethoxy silane etc.
Described precipitation additive one in organic acid, organic acid anhydride, organic ether, organic ketone, or their mixture. Concrete such as acetic anhydride, phthalic anhydride, succinic anhydride, maleic anhydride, pyromellitic acid anhydride, acetic acid, propanoic acid, butanoic acid, acrylic acid, methacrylic acid, acetone, butanone, benzophenone, methyl ether, ether, propyl ether, butyl ether, amyl ether etc.
The formula of the halogenide or derivatives thereof of described titanium is Ti (OR)4-nXn, in formula, R is C1��C14Aliphatic hydrocarbyl or aromatic hydrocarbyl, X is halogen atom, n is the integer of 1 to 4, specifically can be selected for a kind of in titanium tetrachloride, titanium tetrabromide, titanium tetra iodide, a chlorine triethoxy titanium, dichlorodiethyl oxygen base titanium, trichlorine one ethanolato-titanium or their mixture, it is preferable that titanium tetrachloride.
Described titanium esters compounds improves agent as grain type, and its formula is Ti (OR)4-nXn, in formula, R is C1��C14Aliphatic hydrocarbyl or aromatic hydrocarbyl, X is halogen atom, n is the integer of 0 to 3, specifically can be selected for a kind of in four titanium butoxide, purity titanium tetraethoxide, a chlorine triethoxy titanium, dichlorodiethyl oxygen base titanium, trichlorine one ethanolato-titanium or their mixture, it is preferable that four titanium butoxide.
Described electron donor compound includes aliphatic series and the Arrcostab of aromatic monocarboxylate, aliphatic series and the Arrcostab of aromatic polycarboxylic acid, aliphatic ether, cyclic aliphatic ether and aliphatic ketone. Including C1��C4The Arrcostab of aliphatic saturated monocarboxylic acid, C7��C8The Arrcostab of aromatic carboxylic acids, C2��C6Aliphatic ether, C3��C4Cyclic ethers, C3��C6Saturated fat ketone. It is specially methyl formate, ethyl acetate, butyl acetate, diisobutyl phthalate, n-butyl phthalate, diisooctyl phthalate, ether, hexyl ether, oxolane (THF), acetone and methyl iso-butyl ketone (MIBK) etc., it is preferably diisobutyl phthalate, n-butyl phthalate, it is possible to be used alone or several with the use of.
Described inert diluent can adopt hexane, heptane, octane, decane, benzene,toluene,xylene, or derivatives thereof etc.
The described mol ratio between each component is in every mole of magnesium halide, organic epoxy compound thing 0.2��10 mole, and 0.5��4 mole as well; Organic phosphorus compound 0.1��3 mole, 0.3��1 mole is as well; Precipitation additive 0.03��1 mole, 0.05��0.4 mole is as well; Silane compound 0.01��5 mole, 0.05��1 mole is as well; Titanium esters compounds 0.005��15 mole, 0.06��10 mole is as well; The halogenide or derivatives thereof of titanium 0.5��20 mole, 1��15 mole is as well; Electron donor compound 0.005��15 mole, 0.06��10 mole as well.
The chemical composition of the catalytic component of the present invention is mainly titaniferous 1��10%, magnesium 10��20%, chlorine 40��70%, electron donor compound 5��25%, inert diluent 0��10%, phosphorus 0.01��0.5%, silicon 0.01��0.5%.
The preparation method of the catalytic component of the present invention is as follows: magnesium halide is under agitation dissolved in organic epoxy compound thing, in organic phosphorus compound and toluene, silane compound can also be added, form homogeneous solution, under precipitation additive exists, at-30��60 DEG C of temperature, it is preferably-30��5 DEG C, the halogenide or derivatives thereof of titanium is instilled above-mentioned magnesium halide homogeneous solution or magnesium halide homogeneous solution is instilled in titanium compound, then in this uniform solution, add titanium esters compounds, again reactant mixture is warming up to 60��110 DEG C, granule is had to produce in the process, add or be not added with electron donor, suspension is stirred at this temperature 0.5��8 hour, elimination mother solution, again by the mixture process 3��4 times of the halogenide of transition metals Ti and inert diluent, leach liquid, solids is washed with inert diluent, prepare the ingredient of solid catalyst of titaniferous.
Present invention also offers a kind of catalyst for olefinic polymerization or combined polymerization, including following components:
A, titaniferous ingredient of solid catalyst, a kind of catalytic component for olefinic polymerization or combined polymerization, by magnesium halide is dissolved in organic epoxy compound thing, organic phosphorus compound dicyandiamide solution, silane compound can also be added, and form homogeneous solution, react with gained homogeneous solution with the halogenide or derivatives thereof of titanium under precipitation additive exists, titanium esters compounds is added before precipitation of solid material containing magnesium titanium under low temperature precipitating out, the back loading of precipitation of solid material formation or not load electron donor, obtain after washing with inert diluent;
B, organo-aluminum compound;
C, organo-silicon compound.
Its formula of described alkyl aluminum compound is AlRnX3-n, in formula, R can be hydrogen and carbon number be the alkyl of 1��20, particularly alkyl, aralkyl, aryl; X is halogen, particularly chlorine and bromine; N is the number of 0 < n��3. Particular compound such as aluminum alkyl halides such as trimethyl aluminium, triethyl aluminum, triisobutyl aluminium, trioctylaluminum, a hydrogen diethyl aluminum, a hydrogen diisobutyl aluminum, aluminium diethyl monochloride, a chloro-di-isobutyl aluminum, sesquialter ethylmercury chloride aluminum, two different aluminium ethides, wherein triethyl aluminum, triisobutyl aluminium as well.
In invention catalyst system, in component B, aluminum is 5��5000 with the mol ratio of titanium in component A, it is preferred to 20��500.
In invention catalyst system, component C is organo-silicon compound, and its formula is RnSi(OR1)4-n, 0��n��3, R and R in formula1For alkyl of the same race or not of the same race, cycloalkyl, aryl, halogenated alkyl etc., R can also be halogen or hydrogen atom. Concrete such as trimethylmethoxysilane, trimethylethoxysilane, trimethyl phenoxysilane, dimethyldimethoxysil,ne, dimethyldiethoxysilane, methylcyclohexyl diethoxy silane, Cyclohexylmethyldimethoxysilane, dimethoxydiphenylsilane, diphenyl diethoxy silane, phenyl triethoxysilane, phenyltrimethoxysila,e, vinyltrimethoxy silane etc. The mol ratio of organo-aluminum compound and organo-silicon compound is 0.1��300. According to different alkene kind, can add during polymerization or be added without component C.
Invention catalyst system olefins for polymerization has ethylene, propylene, 1-butylene, 4-methyl 1-amylene, 1-hexene, 1-amylene etc. Invention catalyst system is applicable to slurry polymerization, polymerisation in bulk and gas-phase polymerization mode.
Present invention catalyst component particles precipitation after titanium compound contacts with magnesium halide homogeneous solution adds titanium esters compounds before producing and improves agent as particle shape, change growth mechanism and the form of catalyst component particles precipitation, the configuration of surface making granule there occurs significant change, catalyst component particles average pore size is below 2 nanometers, configuration of surface is good, smooth surface, crackle are few, and during for propylene polymerization and combined polymerization, in powder, fine powder content is little.
The catalytic component of the present invention mainly comprise with Chinese patent CN85100997 disclosed in quite, preparation method also close to, simply before catalyst component particles precipitation produces, add particle shape in certain temperature range and improve agent, but the present invention changes electron donor coal addition position simply in the open method of Chinese patent CN85100997, shown in comparative example, the open method basis of Chinese patent CN85100997 changes electron donor coal addition position and might not obtain the effect of the present invention.
The catalytic component of the present invention is the breakthrough of prior art, by a large amount of tests, the polyolefin catalyst component granule aperture of prior art is all in 2��100 nanometer range, and wherein catalyst component for polymerization of ethylene many employings silica gel is carrier, granule aperture is relatively big, between 5��50 nanometers; Propylene polymerization catalyst is many with magnesium halide for carrier, and granule aperture is less, between 2��5 nanometers. Even it is believed that polyolefin catalyst component granule aperture can not below 2 nanometers. And the catalyst component particles smooth surface of the present invention, crackle is few, and granule average pore size is between 1��2 nanometer.
The present invention compared with prior art has following clear advantage for olefinic polymerization or combined polymerization: catalyst component particles average pore size is below 2 nanometers, configuration of surface is good, smooth surface, crackle are few, during for propylene polymerization and combined polymerization, in powder, fine powder content is little, other performance is as also good in activity, capacity of orientation, hydrogen regulation performance etc., is the good catalytic component of combination property, it is adaptable to the multiple polymerization techniques such as slurry method, substance law and vapor phase method.
Accompanying drawing explanation
Fig. 1 is the granule photo of the catalytic component of embodiment 1
Fig. 2 is the granule photo of the catalytic component of comparative example 1
Fig. 3 is the granule photo of the catalytic component of embodiment 4
Fig. 4 is the granule photo of the catalytic component of comparative example 7
Detailed description of the invention
Example given below illustrates that the present invention, rather than limits the invention.
Method of testing:
1. catalytic component Ti content spectrophotography;
2. ester content adopts chromatography;
3. melt index (MI) 6932 type melt indexers, CEAST company of Italy;
4. catalyst aperture ASAP2010N type automatically quick specific surface and lacunarity analysis instrument, Micromeritics Instrument Corp. U.S.A.
Embodiment 1
1, the preparation of solids containing titanium catalytic component
In the reactor repeating displacement through high pure nitrogen, it is sequentially added into 4.8 grams of anhydrous magnesium chlorides, 100 milliliters of toluene, 4.0 milliliters of epoxychloropropane, 12.5 milliliter tributyl phosphate, when temperature is 60 DEG C, react 2 hours, add 1.4 grams of phthalic anhydrides, continue reaction one hour, it is cooled to-28 DEG C, dropping titanium tetrachloride 56 milliliters, add 5.0 milliliter of four titanium butoxide, it is gradually heating to 85 DEG C, 80 DEG C add 2.0 milliliters of n-butyl phthalates (DNBP), 85 DEG C of constant temperature one hour, elimination mother solution, wash twice with toluene, add titanium tetrachloride 48 milliliters, toluene solution 72 milliliters, 110 DEG C of constant temperature 0.5 hour, process twice is repeated after filtration, then hexanes wash is used 5 times, remaining solid product obtains solid titanium catalyst component through vacuum drying. granule photo such as Fig. 1.
2, polyreaction
5 liters of stainless steel cauldrons are after nitrogen is sufficiently displaced from, add the triethyl aluminum hexane solution that 5 ml concns are 0.5 mol/L and Cyclohexylmethyldimethoxysilane (CMMS) hexane solution that 1 ml concn is 1 mol/L and the catalyst 10 milligrams of embodiment 1 preparation, it is subsequently adding 10 milliliters of hexanes and rinses charge line, add 1 liter of (under standard state) hydrogen, with 2 liters of refining propylene, it is warming up to 70 DEG C, making hydrogen partial pressure is 0.2Mpa, polyreaction 1 hour at this temperature. After reaction terminates, reactor is lowered the temperature and stops stirring and discharge product.
Embodiment 2
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply 5.0 milliliter of four titanium butoxide changes 2.5 milliliters of purity titanium tetraethoxides into. The similar Fig. 1 of granule photo.
2, polyreaction
With embodiment 1.
Embodiment 3
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply 5.0 milliliter of four titanium butoxide changes 3.0 milliliter of four titanium propanolate into. The similar Fig. 1 of granule photo.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Embodiment 4
1, the preparation of solids containing titanium catalytic component
In the reactor repeating displacement through high pure nitrogen, it is sequentially added into 4.8 grams of anhydrous magnesium chlorides, 100 milliliters of toluene, 4.0 milliliters of epoxychloropropane, 12.5 milliliter tributyl phosphate, 1.0 milliliters of tetraethoxysilanes, when temperature is 60 DEG C, react 1 hour, add 1.4 grams of phthalic anhydrides, continue reaction one hour, it is cooled to 28 DEG C, dropping titanium tetrachloride 56 milliliters, add 5.0 milliliter of four titanium butoxide, it is gradually heating to 85 DEG C, 80 DEG C add 2.0 milliliters of n-butyl phthalates (DNBP), 85 DEG C of constant temperature one hour, elimination mother solution, wash twice with toluene, add titanium tetrachloride 48 milliliters, toluene solution 72 milliliters, 110 DEG C of constant temperature 0.5 hour, process twice is repeated after filtration, then hexanes wash is used 5 times, remaining solid product obtains solid titanium catalyst component through vacuum drying. granule photo such as Fig. 3.
2, polyreaction
5 liters of stainless steel cauldrons are after nitrogen is sufficiently displaced from, add the triethyl aluminum hexane solution that 5 ml concns are 0.5 mol/L and Cyclohexylmethyldimethoxysilane (CMMS) hexane solution that 1 ml concn is 1 mol/L and the catalyst 10 milligrams of embodiment 1 preparation, it is subsequently adding 10 milliliters of hexanes and rinses charge line, add 1 liter of (under standard state) hydrogen, with 2 liters of refining propylene, it is warming up to 70 DEG C, making hydrogen partial pressure is 0.2Mpa, polyreaction 1 hour at this temperature. After reaction terminates, reactor is lowered the temperature and stops stirring and discharge product.
Embodiment 5
1, the preparation of solids containing titanium catalytic component
With embodiment 4, simply 5.0 milliliter of four titanium butoxide changes 2.5 milliliters of purity titanium tetraethoxides into. The similar Fig. 3 of granule photo.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Embodiment 6
1, the preparation of solids containing titanium catalytic component
With embodiment 4, simply 5.0 milliliter of four titanium butoxide changes 3.0 milliliter of four titanium propanolate into. The similar Fig. 3 of granule photo.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Comparative example 1
1, the preparation of solids containing titanium catalytic component
Prepare by open embodiment 1 method of Chinese patent CN85100997. Granule photo such as Fig. 2.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Comparative example 2
1, the preparation of solids containing titanium catalytic component
Prepare by open embodiment 1 method of Chinese patent CN85100997. Simply 5.0 milliliter of four titanium butoxide adds before changing into dropping titanium tetrachloride, does not finally obtain catalyst. The similar Fig. 2 of granule photo.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Comparative example 3
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply 5.0 milliliter of four titanium butoxide changes into 80 DEG C of additions after particle precipitation generates. The similar Fig. 2 of granule photo.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Comparative example 4
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply it is added without 5.0 milliliter of four titanium butoxide. The similar Fig. 2 of granule photo.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Comparative example 5
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply 5.0 milliliter of four titanium butoxide adds before changing into dropping titanium tetrachloride, does not finally obtain catalyst.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Comparative example 6
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply 5.0 milliliter of four titanium butoxide changes into 80 DEG C of additions after particle precipitation generates. Granule photo is similar with Fig. 2.
2, polyreaction
Propylene polymerization condition is with embodiment 1.
Table 1 polymerization result
Band * is comparative example
As it can be seen from table 1 when the catalytic component of the present invention is for propylene polymerization and combined polymerization, catalyst component particles aperture is less than 2nm, and in powder, fine powder content is little, and other performance is as also good in activity, capacity of orientation, hydrogen regulation performance etc.
Comparative example 7
1, the preparation of solids containing titanium catalytic component
Prepare by open embodiment 1 method of Chinese patent ZL201010548601.8. Granule photo such as Fig. 4.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Comparative example 8
1, the preparation of solids containing titanium catalytic component
Prepare by open embodiment 1 method of Chinese patent ZL201010548601.8. Simply 5.0 milliliter of four titanium butoxide adds before changing into dropping titanium tetrachloride, does not finally obtain catalyst.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Comparative example 9
1, the preparation of solids containing titanium catalytic component
Prepare by open embodiment 1 method of Chinese patent ZL201010548601.8. Simply 5.0 milliliter of four titanium butoxide changes into 80 DEG C of additions after particle precipitation generates. Granule photo is similar with Fig. 4.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Comparative example 10
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply it is added without 5.0 milliliter of four titanium butoxide. Granule photo is similar with Fig. 4.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Comparative example 11
1, the preparation of solids containing titanium catalytic component
With embodiment 1, simply 5.0 milliliter of four titanium butoxide adds before changing into dropping titanium tetrachloride, does not finally obtain catalyst.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Comparative example 12
1, the preparation of solids containing titanium catalytic component
With embodiment 1. Simply 5.0 milliliter of four titanium butoxide changes into 80 DEG C of additions after particle precipitation generates. Granule photo is similar with Fig. 4.
2, polyreaction
Propylene polymerization condition is with embodiment 4.
Table 2 polymerization result
Band * is comparative example
From table 2 it can be seen that when the catalytic component of the present invention is for propylene polymerization and combined polymerization, catalyst component particles aperture is less than 2nm, and in powder, fine powder content is little, and other performance is as also good in activity, capacity of orientation, hydrogen regulation performance etc.
Claims (21)
1. the catalytic component for olefinic polymerization or combined polymerization, it is characterized in that magnesium halide be dissolved in organic epoxy compound thing, organic phosphorus compound dicyandiamide solution and form homogeneous solution, react with gained homogeneous solution with the halogenide or derivatives thereof of titanium under precipitation additive exists, titanium esters compounds is added before precipitation of solid material containing magnesium titanium under low temperature precipitating out, the back loading of precipitation of solid material formation or not load electron donor, obtain the catalytic component of the present invention with inert diluent after washing; The formula of described titanium esters compounds is Ti (OR)4-nXn, in formula, R is C1��C14Aliphatic hydrocarbyl or aromatic hydrocarbyl, X is halogen atom, and n is the integer of 0 to 3.
2. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that titanium esters compounds includes a kind of in four titanium butoxide, purity titanium tetraethoxide, a chlorine triethoxy titanium, dichlorodiethyl oxygen base titanium, trichlorine one ethanolato-titanium or their mixture.
3. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described titanium esters compounds is four titanium butoxide.
4. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterized in that described magnesium halide is magnesium dihalide, the water of magnesium dihalide and the complex of alcohol, in magnesium dihalide molecular formula, one of them halogen atom is by the one in the replaced derivant of alkyl or oxyl, or their mixture.
5. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described organic epoxy compound thing is selected from including the carbon number aliphatic alkene 2��8, alkadienes or the compound such as halogenated aliphatic alkene or the oxide of alkadienes, glycidyl ether and inner ether.
6. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterized in that described organic epoxy compound thing is selected from oxirane, expoxy propane, epoxy butane, butadiene oxide, butadiene double oxide, epoxychloropropane, methyl glycidyl ether, diglycidyl ether.
7. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described organic phosphorus compound is selected from hydrocarbyl carbonate or the halohydrocarbyl ester of orthophosphoric acid or phosphorous acid.
8. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described organic phosphorus compound is selected from orthophosphoric acid trimethyl, orthophosphoric acid triethyl, orthophosphoric acid tributyl, orthophosphoric acid triphenylmethyl methacrylate, NSC 6513, NSC 5284, tributyl phosphite, phosphorous acid benzene methyl.
9. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described precipitation additive one in organic acid, organic acid anhydride, organic ether, organic ketone, or their mixture.
10. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described precipitation additive is selected from acetic anhydride, phthalic anhydride, succinic anhydride, maleic anhydride, pyromellitic acid anhydride, acetic acid, propanoic acid, butanoic acid, acrylic acid, methacrylic acid, acetone, butanone, benzophenone, methyl ether, ether, propyl ether, butyl ether, amyl ether.
11. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that the formula of the halogenide or derivatives thereof of described titanium is Ti (OR)4-nXn, in formula, R is C1��C14Aliphatic hydrocarbyl or aromatic hydrocarbyl, X is halogen atom, and n is the integer of 1 to 4.
12. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 11, it is characterised in that a kind of in titanium tetrachloride, titanium tetrabromide, titanium tetra iodide, four titanium butoxide, purity titanium tetraethoxide, a chlorine triethoxy titanium, dichlorodiethyl oxygen base titanium, trichlorine one ethanolato-titanium of the halogenide or derivatives thereof of described titanium or their mixture.
13. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterised in that described electron donor compound is selected from aliphatic series and the Arrcostab of aromatic monocarboxylate, aliphatic series and the Arrcostab of aromatic polycarboxylic acid, aliphatic ether, cyclic aliphatic ether and aliphatic ketone.
14. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1, it is characterized in that magnesium halide being dissolved in the dicyandiamide solution of organic epoxy compound thing, organic phosphorus compound and silane compound and forming homogeneous solution, react with gained homogeneous solution with the halogenide or derivatives thereof of titanium under precipitation additive exists, titanium esters compounds is added before precipitation of solid material containing magnesium titanium under low temperature precipitating out, the back loading of precipitation of solid material formation or not load electron donor, obtain the catalytic component of the present invention with inert diluent after washing; The formula of silane compound is RnSi(OR1)4-n, in formula, n is the integer of 0��n��4, and R is alkyl, cycloalkyl, aryl, halogenated alkyl, halogen or hydrogen atom, R1For alkyl, cycloalkyl, aryl, halogenated alkyl.
15. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 14, it is characterised in that described silane compound is selected from four butoxy silanes, tetraethoxysilane, diphenyl diethoxy silane, dimethoxydiphenylsilane, propyl trimethoxy silicane, propyl-triethoxysilicane, Cyclohexyl Methyl Dimethoxysilane, cyclohexyl methyl diethoxy silane.
16. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1 or 14, it is characterised in that the ratio between each component is in every mole of magnesium halide, organic epoxy compound thing 0.2��10 mole, and 0.5��4 mole is as well; Organic phosphorus compound 0.1��3 mole, 0.3��1 mole is as well; Silane compound 0.01��5 mole, 0.05��1 mole is as well; Precipitation additive 0.03��1 mole, 0.05��0.4 mole is as well; Titanium esters compounds 0.005��15 mole, 0.06��10 mole is as well; The compound of transition metals Ti 0.5��20 mole, 1��15 mole is as well; Electron donor compound 0.005��15 mole, 0.06��10 mole as well.
17. a kind of catalytic component for olefinic polymerization or combined polymerization according to claim 1 or 14, it is characterised in that the average pore size of catalytic component is 1��2 nanometer.
18. for a catalyst for olefinic polymerization or combined polymerization, including following components:
A kind of catalytic component for olefinic polymerization or combined polymerization described in A, claim 1 or 14;
B, organo-aluminum compound;
C, organo-silicon compound.
19. a kind of catalyst for olefinic polymerization or combined polymerization according to claim 18, it is characterised in that the formula of described organo-silicon compound is RnSi(OR1)4-n, 0��n��3, R and R in formula1For alkyl of the same race or not of the same race, cycloalkyl, aryl, halogenated alkyl etc., R can also be halogen or hydrogen atom.
20. a kind of catalyst for olefinic polymerization or combined polymerization according to claim 18, it is characterized in that described organo-silicon compound are trimethylmethoxysilane, trimethylethoxysilane, trimethyl phenoxysilane, dimethyldimethoxysil,ne, dimethyldiethoxysilane, methylcyclohexyl diethoxy silane, Cyclohexylmethyldimethoxysilane, dimethoxydiphenylsilane, diphenyl diethoxy silane, phenyl triethoxysilane, phenyltrimethoxysila,e, vinyltrimethoxy silane.
21. a kind of catalyst for olefinic polymerization or combined polymerization according to claim 18, it is characterized in that the aluminum in organo-aluminum compound is 5��5000 with the mol ratio containing the titanium in magnesium titanium catalytic component, the mol ratio of organo-aluminum compound and organo-silicon compound is 0.1��300.
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Cited By (5)
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| CN111234069A (en) * | 2018-11-29 | 2020-06-05 | 中国石油化工股份有限公司 | Magnesium/titanium-containing solid catalyst component, preparation method thereof, olefin polymerization catalyst and application thereof |
| CN112707981A (en) * | 2019-10-25 | 2021-04-27 | 中国石油化工股份有限公司 | Catalyst component for ethylene polymerization, catalyst and application |
| CN112759681A (en) * | 2019-11-01 | 2021-05-07 | 中国石油化工股份有限公司 | Catalyst composition, catalyst and preparation method thereof, composite catalyst and olefin polymerization method |
| CN112794935A (en) * | 2019-10-28 | 2021-05-14 | 中国石油化工股份有限公司 | Solid catalyst, preparation method and application thereof |
| CN114426598A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Magnesium-based carrier solid with multimodal pore distribution and preparation method and application thereof |
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