CN105085735A - Preparation method for catalyst composition for alkene polymerization - Google Patents
Preparation method for catalyst composition for alkene polymerization Download PDFInfo
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Abstract
The invention provides a preparation method for a catalyst composition for alkene polymerization. The preparation method comprises that an anhydrous magnesium halide is dissolved in a mixed solvent containing an oxygen-containing organic titanium compound, an organic epoxy compound, a hydroxyl-containing compound and an inert diluent so as to form a magnesium halide solution, and the mixed solvent does not contain phosphate esters; and the magnesium halide solution is mixed with a halogenated organic aluminium compound, a solid is precipitated and a catalyst composition is obtained. The halogenated organic aluminium compound is a compound shown as AlR<5>[n]X[3-n], in the formula R<5> is a C1-C20 hydrocarbon, preferably is a linear or branched hydrocarbon with no more than 6 carbon atoms, 0.5<n<2.5, and X is a halogen. The prepared catalyst composition possesses relatively good particle form and excellent hydrogen-regulating performance, and is beneficial usage of a catalyst in slurry or gas-phase polymerization technological apparatuses.
Description
Technical field
The present invention relates to a kind of all polymerization for alkene or the preparation method of catalyst component of copolymerization.
Background technology
Along with the development of olefin polymetiation process, significant progress also got by the catalyzer matched with polymerization technique, and wherein effective catalyst relies on its excellent polymerization and ripe utilisation technology still to occupy an important position in polyolefin catalyst field.Especially people more and more pay close attention to the production development of novel texture polyolefin resin, require also more and more higher, not only will adapt to process unit to the over-all properties of olefin polymerization catalysis, but also adjustable controlled to resin structure.Through exploratory development for many years, show that Mg-Ti system effective catalyst is relatively applicable to this application.
Preparation method's method adopting solution modeling at present of Mg-Ti system effective catalyst, namely first makes magnesium compound be dissolved in certain solvent more, and then the way of Precipitation.As day JP 54-40293 proposition metatitanic acid liposoluble solution magnesium compound, day JP 56-811 and day JP 58-83006 proposes with compound dissolution magnesium compounds such as alcohol, aldehyde, amine, carboxylic acids, day JP 58-19307 proposes with organo phosphorous compounds dissolved magnesium compound, and day JP 58-183708 proposes by the scheme such as organic epoxy compound thing and organo phosphorous compounds (phosphate compounds) mixed dissolution magnesium compound.
Although above-mentioned magnesium compound dissolving method also can overcome the shortcoming of the method for grinding to a certain extent, but still have a series of deficiency to have much room for improvement, for catalysis in olefine polymerization after magnesium compound solution precipitation catalyzer as described in day JP 54-40293, day JP 58-19307, day JP 58-183708, its catalytic activity is lower, and the active obviously decline when extending polymerization time, the tap density of polymkeric substance is also lower.
Secondly the Mg-Ti system effective catalyst also preparation method adopting chemical reaction more.In chemical reaction method, many patents of invention relate to chemical feedstockss such as adopting organo-metallic magnesium compound, chlorizating agent and transition metal titanium compound, prepared the catalyzer of number of different types with this kind of reactant, they are disclosed in Chinese patent CN1158136, CN1299375, CN1795213 and US Patent No. 3787384, US4148754, US4173547, US4508843 and 5124296.In such Mg-Ti catalyzer, although the performance of catalyzer easily modulation, ubiquity gained granules of catalyst form is bad, the problem of wider distribution, have or even multimodal distribution, be unfavorable for the long period smooth running of poly-unit.
The present inventor by repeatedly testing discovery, selects the catalyst system that suitable magnesium halide solution modeling system can obtain well for olefinic polymerization or copolymerization in the preparation process of catalyzer.This catalyst system has very high polymerization activity, and polymerization kinetics is steady, and decay of activity is slow, and hydrogen response is good; Granules of catalyst form is good, narrow diameter distribution, and cause morphology better, narrow diameter distribution, fine powder is few, and tap density is large, is conducive to the long period smooth running of poly-unit; The tacticity of the olefin polymer of carbon number more than 3 or 3 is very high.In addition, few in the consumption of catalyst synthesis processes Raw, plant factor is high, has easy to operate, eco-friendly advantage.
Summary of the invention
The invention provides a kind of preparation method of the catalyst component for olefinic polymerization, comprise first being dissolved in anhydrous magnesium halide and comprise containing the mixed solvent of oxygen organic titanic compound, organic epoxy compound thing, hydroxyl compounds and inert diluent and form a kind of magnesium halide solution, and not phosphate ester-containing compounds in described mixed solvent; Described magnesium halide solution mixes with halogenation organo-aluminium compound again separates out solid and obtains described catalyst component; Wherein organic epoxy compound thing is the triatomic ring oxygen compound such as shown in formula I, R in formula I
2and R
3independently selected from H or C
1~ C
10alkyl or halo alkyl, can be saturated or undersaturated straight chain, side chain or closed chain; Or described organic epoxy compound thing is 4 ~ 8 yuan of epoxy compoundss; Described halogenation organo-aluminium compound is such as formula AlR
5 nx
3-nshown compound, R in formula
5c
1~ C
20alkyl, be preferably not higher than the direct-connected of 6 carbon atoms or branched hydrocarbyl, wherein 0.5≤n≤2.5, X is halogen.
The magnesium halide solution obtained in the present invention is amorphous magnesium halide form, the magnesium halide that is not containing crystal form in magnesium halide solution of the present invention.In the present invention, Materials Absolute magnesium halide is the magnesium halide of crystal form, and it can be the multiple crystalline form such as α, β or γ.In the present invention, described mixed solvent, except above-mentioned requisite four kinds of organic solvents, can also comprise other organic solvent, such as, for being selected from the organic solvent of the compounds such as ester class, ketone and amine.The consumption of these other organic solvents is premised on the phase not affecting final magnesium halide solution product.
In the present invention, not phosphate ester-containing compounds in mixed solvent, the magnesium halide solution so obtained has better performance in the application process in downstream, and such as it is for making solid ingredient easily separate out and making the activity of corresponding catalyzer improve in catalyst preparing; And avoid the phosphorus containg substances that residual toxicity is large in the catalyst prod in downstream.Phosphate compounds in the present invention is such as tributyl phosphate, three iso-butyl ester of phosphoric acid, tricresyl phosphate propyl ester, triethyl phosphate or trimethyl phosphite 99.
Preferably, in the present invention, described magnesium halide solution is dissolved in by the mixed solvent formed containing oxygen organic titanic compound, organic epoxy compound thing, hydroxyl compounds and inert diluent with anhydrous magnesium halide and is formed.That is, above-mentioned requisite four kinds of organic solvents are only comprised in preferred mixed solvent of the present invention.
In a concrete embodiment, the general formula of described magnesium halide is MgX
2, in formula, X is halogen.The described oxygen organic titanic compound that contains is as general formula Ti (OR
1)
nx
4-nshown in, R in formula
1c
1~ C
20alkyl, can be saturated or undersaturated straight chain, side chain or closed chain, 0<n≤4, X be halogen.Preferred use tetravalent titanium compound, because they are in a liquid state usually at normal temperatures, and has good consistency with some solvents under normal conditions.The compound of n=4 and their mixture in the concrete titanium compound preferred formula used in reaction, wherein tetrabutyl titanate is the most conventional.Described hydroxyl compounds general formula is HOR
4, R in formula
4c
1~ C
20alkyl, can be saturated or undersaturated straight chain, side chain or closed chain; Described inert diluent is C
3~ C
100aliphatic hydrocrbon or its halohydrocarbon, or being aromatic hydrocarbons or its halohydrocarbon, can be saturated or undersaturated straight chain, side chain or closed chain; Preferred described inert diluent is C
4~ C
20hydrocarbon compound.
Preferably, described magnesium halide is magnesium chloride, magnesium bromide, magnesium iodide and composition thereof, the mixture that the magnesium halide more preferably used in reaction is magnesium chloride or magnesium chloride containing; Described is metatitanic acid lipoid substance and composition thereof containing oxygen organic titanic compound, preferred tetraethyl titanate, titanium isopropylate, tetrabutyl titanate, the different monooctyl ester of metatitanic acid four; Described hydroxyl compounds is fatty alcohol, aromatic alcohol or phenols, particular methanol, ethanol, Virahol, propyl carbinol, n-hexyl alcohol, isooctyl alcohol, phenylcarbinol and phenylethyl alcohol; Described inert diluent is selected from benzene,toluene,xylene, normal butane, Trimethylmethane, iso-pentane, Skellysolve A, normal hexane, hexanaphthene, heptane, octane, decane, 1,2-ethylene dichloride, chlorobenzene and composition thereof.
In the present invention in a concrete embodiment, in every mole of magnesium halide, be 0.01 ~ 2.0 mole containing oxygen organic titanic compound, preferably 0.1 ~ 1.5 mole; Organic epoxy compound thing is 0.01 ~ 10 mole, preferably 0.1 ~ 6.5 mole, and hydroxyl compounds is 0.01 ~ 20 mole, preferably 0.1 ~ 15 mole, and halogenation organo-aluminium compound is 0.1 ~ 100 mole, preferably 0.5 ~ 50 mole.
In a concrete embodiment, in magnesium halide solution, the volumetric molar concentration of magnesium halide is 0.0001 ~ 20mol/L, is preferably 0.001 ~ 10mol/L.
In the present invention, preferably, the organic epoxy compound thing shown in formula I includes carbonatoms at the aliphatics alkene of 2 ~ 8, the compound such as oxide compound, glycidyl ether, inner ether of diolefine or halogenated aliphatic olefins or diolefine.Preferred described organic epoxy compound thing be selected from oxyethane, propylene oxide, butylene oxide ring, butadiene oxide, butadiene double oxide, epoxy chloropropane, methyl glycidyl ether, diglycidylether and tetrahydrofuran (THF) one or more.
In the present invention, preferred described halogenation organo-aluminium compound is selected from least one in ethyl aluminum dichloride, ethylaluminum sesquichloride, diethylaluminum chloride and dichloro aluminium isobutyl, and wherein ethyl aluminum dichloride or dichloro aluminium isobutyl are preferred.
Prepare in the step of magnesium halide solution in the present invention, the temperature that magnesium compound, organic epoxy compound thing, hydroxyl compounds and organic titanic compound contact with each other depends on the character of reactant, carry out dissolving advantageously under being typically chosen in relatively high temperature, preferably below the decomposition temperature of reactant, temperature is usual not higher than 200 DEG C, generally not higher than 150 DEG C.The time of dissolving depends on character and the operational condition of reactant, general selection of time with till can obtaining completely transparent solution, required time generally at 10 minutes to 24 hours, preferably 2 to 16 hours.Inert diluent as above can be added during dissolving.
Second step prepared by catalyst component also can be described as settling step, completes the chlorination reaction of magnesium titanium complex solution in this step, makes liquid title complex Precipitation from solution.The contact method of magnesium titanium complex solution and halogenation organo-aluminium compound can adopt any known suitable method to carry out, the mode be progressively added drop-wise to by magnesium titanium complex solution in halogenation organo-aluminium compound solution can be adopted, also can adopt the mode be progressively added drop-wise to by halogenation organo-aluminium compound solution in magnesium titanium complex solution.The local superheating that rate of addition is selected not induce reaction usually is as the criterion, and usually carries out stirring being beneficial to steadily carrying out of reaction in dropping process.In this precipitin reaction step, temperature can control between-40 ~ 100 DEG C, preferably between-20 ~ 80 DEG C.The reaction times of settling step should be long enough to obtain to be precipitated completely, and the reaction times can last 1 minute to 10 hours, preferably 0.5 ~ 8 hour.
Experiment finds, after settling step, reacting for some time at a certain temperature, to carry out the particle shape of maturation process to catalyzer more favourable, also can improve the intensity of catalyst particle simultaneously, thus reduce the particle fragmentation phenomenon of catalyzer in catalyzed ethylene polymerization process.The temperature of maturation process is generally equal to or higher than the temperature of precipitin reaction, and the time of slaking reaction can control at 0.5 ~ 15 hour, preferably 1 ~ 10 hour.
After carrying out maturation process, generally to wash, to remove the by product formed in excessive reactant and preparation process, any inert solvent all can be used for this washing step, such as can select benzene,toluene,xylene, Trimethylmethane, pentane, hexane, heptane or hexanaphthene and composition thereof etc., in experiment, usually select hexane, toluene to be the inert solvent washed.After washing, catalyst suspension directly can repeatedly carry titanium process, also by carrying out drying with nitrogen purging under heating state, directly can obtain catalyst fines.
The present invention also provides a kind of catalyzer for olefinic polymerization, and it comprises the reaction product of following component:
A catalyst component that () aforesaid method prepares;
B () at least one general formula is AlR
mx
3-morgano-aluminium compound, in formula, R is hydrogen or carbonatoms is the alkyl of 1 ~ 20, and X is halogen, and m is the number of 0<m≤3.
In the present invention, one or more organo-aluminium compound can be selected used in combination, preferred AlEt
3, Al (iso-Bu)
3, Al (n-C
6h
13)
3, Al (n-C
8h
17)
3, AlEt
2cl etc.
The catalyst component that the present invention relates to or catalyzer are applicable to various olefinic polymerization or copolymerization; Preferably all be polymerized or application in copolymerization at ethene, propylene, butylene, hexene and octene.Especially the copolymerization of all polymerization or ethene and other alpha-olefins of ethene, wherein alpha-olefin adopts the one in propylene, butylene, amylene, hexene, octene, 4-methylpentene-1.
Embodiment
Testing method:
1, the size-grade distribution of carrier and catalyzer: MASTERSIZE particles distribution instrument, normal hexane as dispersion agent, useful range 0.02 ~ 2000 μm.
2, the relative weight percents of metal (mainly titanium, magnesium) in catalyst system: plasma emission spectrum (ICP).
3, the mensuration of melting index: ASTM-D1238.
4, the mensuration of tap density: DIN-53194.
Embodiment given below is in order to the present invention is described, instead of limits the invention.
Embodiment 1
The preparation of catalyst component: take 1.2 grams of Magnesium Chloride Anhydrouss, adds 4.4 milliliters of tetrabutyl titanates, 1.0 milliliters of epoxy chloropropane, 1.1 milliliters of dehydrated alcohols and 50 milliliters of hexanes, keeps stirring and dissolving until form clear solution at 60 DEG C.And then add 100 milliliters of hexanes, solution temperature is down to 0 DEG C, slowly drips the hexane solution (3M) of 18 milliliters of ethyl aluminum dichlorides with drop-burette, after being added dropwise to complete, maintain 0 DEG C and react half an hour, then be warmed up to 65 DEG C of maintenance reactions 3 hours, obtain catalyst suspension.Catalyst suspension is left standstill, sedimentation, with hexanes wash four times, the consumption of each hexane is 50 milliliters, after having washed, when bathing temperature 65 DEG C, purge dry with high pure nitrogen, obtain mobility powder, i.e. catalyst component of the present invention, its median size is 15.68 μm.Ultimate analysis (ICP): Ti:11.48% (weight), Mg:13.78% (weight).
Evaluating catalyst: 1L hexane, 1mmol triethyl aluminum and a certain amount of catalyzer are joined in 2L stainless steel stirring tank, then temperature is brought up to 90 DEG C, the disposable hydrogen adding 0.4MPa, then with ethene, the total pressure of system is maintained 1.0MPa and carry out polyreaction, react after 2 hours, stop adding ethene, cooling, pressure release, polyethylene powder is weighed, calculate the activity of catalyzer, the test tap density (BD) of polyethylene powder and the melting index (MI under 2.16Kg load
2.16), result is as shown in table 1.
Embodiment 2
The preparation of catalyst component: " solution temperature being down to 0 DEG C " in embodiment 1 preparation process be adjusted to " solution temperature being down to 45 DEG C " and correspondingly " maintain 0 DEG C reaction half an hour " changed into " maintain 45 DEG C and react half an hour ", other conditions are with embodiment 1.The median size of gained catalyst component is 14.77 μm.Ultimate analysis (ICP): Ti:7.64% (weight), Mg:16.06% (weight).
Evaluating catalyst: the slurry polymerization appreciation condition of catalyzer is with embodiment 1, and polymerization result is in table 1.
Embodiment 3
The preparation of catalyst component: " 4.4 milliliters of tetrabutyl titanates " in embodiment 1 preparation process be adjusted to " 2.8 milliliters of tetraethyl titanates ", other conditions are with embodiment 1.The median size of gained catalyst component is 21.64 μm.Ultimate analysis (ICP): Ti:10.92% (weight), Mg:16.33% (weight).
Evaluating catalyst: the slurry polymerization appreciation condition of catalyzer is with embodiment 1, and polymerization result is in table 1.
Embodiment 4
The preparation of catalyst component: " 1.1 milliliters of dehydrated alcohols " in embodiment 1 preparation process is adjusted to " 2.3 milliliters of propyl carbinols ", and " solution temperature being down to 0 DEG C " is adjusted to " solution temperature being down to 45 DEG C " and corresponding " maintain 0 DEG C react to half an hour " is changed into " maintain 45 DEG C and react half an hour ", other conditions are with embodiment 1.The median size of gained catalyst component is 16.84 μm.Ultimate analysis (ICP): Ti:8.19% (weight), Mg:12.57% (weight).
The slurry polymerization appreciation condition of catalyzer is with embodiment 1, and polymerization result is in table 1.
Table 1
Claims (10)
1. the preparation method for the catalyst component of olefinic polymerization, comprise first being dissolved in anhydrous magnesium halide and comprise containing the mixed solvent of oxygen organic titanic compound, organic epoxy compound thing, hydroxyl compounds and inert diluent and form a kind of magnesium halide solution, and not phosphate ester-containing compounds in described mixed solvent; Described magnesium halide solution mixes with halogenation organo-aluminium compound again separates out solid and obtains described catalyst component;
Wherein organic epoxy compound thing is the triatomic ring oxygen compound such as shown in formula I,
R in formula I
2and R
3independently selected from H or C
1~ C
10alkyl or halo alkyl, can be saturated or undersaturated straight chain, side chain or closed chain; Or described organic epoxy compound thing is 4 ~ 8 yuan of epoxy compoundss;
Described halogenation organo-aluminium compound is such as formula AlR
5 nx
3-nshown compound, R in formula
5c
1~ C
20alkyl, be preferably not higher than the direct-connected of 6 carbon atoms or branched hydrocarbyl, wherein 0.5≤n≤2.5, X is halogen.
2. method according to claim 1, is characterized in that, described magnesium halide solution is dissolved in by the mixed solvent formed containing oxygen organic titanic compound, organic epoxy compound thing, hydroxyl compounds and inert diluent with anhydrous magnesium halide and is formed.
3. method according to claim 1, is characterized in that, the general formula of described magnesium halide is MgX
2, in formula, X is halogen; The described oxygen organic titanic compound that contains is as general formula Ti (OR
1)
nx
4-nshown in, R in formula
1c
1~ C
20alkyl, can be saturated or undersaturated straight chain, side chain or closed chain, 0<n≤4, X be halogen.
4. method according to claim 1, is characterized in that, described hydroxyl compounds general formula is HOR
4, R in formula
4c
1~ C
20alkyl, can be saturated or undersaturated straight chain, side chain or closed chain; Described inert diluent is C
3~ C
100aliphatic hydrocrbon or its halohydrocarbon, or being aromatic hydrocarbons or its halohydrocarbon, can be saturated or undersaturated straight chain, side chain or closed chain; Preferred described inert diluent is C
4~ C
20hydrocarbon compound.
5. method according to claim 1, is characterized in that, described magnesium halide is magnesium chloride, magnesium bromide, magnesium iodide and composition thereof; Described is metatitanic acid lipoid substance and composition thereof containing oxygen organic titanic compound, preferred tetraethyl titanate, titanium isopropylate, tetrabutyl titanate, the different monooctyl ester of metatitanic acid four; Described hydroxyl compounds is fatty alcohol, aromatic alcohol or phenols, particular methanol, ethanol, Virahol, propyl carbinol, n-hexyl alcohol, isooctyl alcohol, phenylcarbinol and phenylethyl alcohol; Described inert diluent is selected from benzene,toluene,xylene, normal butane, Trimethylmethane, iso-pentane, Skellysolve A, normal hexane, hexanaphthene, heptane, octane, decane, 1,2-ethylene dichloride, chlorobenzene and composition thereof.
6. method according to claim 1, is characterized in that, in every mole of magnesium halide, is 0.01 ~ 2.0 mole containing oxygen organic titanic compound, preferably 0.1 ~ 1.5 mole; Organic epoxy compound thing is 0.01 ~ 10 mole, preferably 0.1 ~ 6.5 mole, and hydroxyl compounds is 0.01 ~ 20 mole, preferably 0.1 ~ 15 mole, and halogenation organo-aluminium compound is 0.1 ~ 100 mole, preferably 0.5 ~ 50 mole.
7. according to the method in claim 1 ~ 6 described in any one, it is characterized in that, described organic epoxy compound thing be selected from oxyethane, propylene oxide, butylene oxide ring, butadiene oxide, butadiene double oxide, epoxy chloropropane, methyl glycidyl ether, diglycidylether and tetrahydrofuran (THF) one or more.
8. according to the method in claim 1 ~ 6 described in any one, it is characterized in that, described halogenation organo-aluminium compound is selected from least one in ethyl aluminum dichloride, ethylaluminum sesquichloride, diethylaluminum chloride and dichloro aluminium isobutyl.
9. according to the method in claim 1 ~ 6 described in any one, it is characterized in that, described olefinic polymerization is all polymerizations or the copolymerization of ethene, propylene, butylene, hexene and octene.
10., for a catalyzer for olefinic polymerization, it comprises the reaction product of following component:
A catalyst component that the described method of one of () claim 1 ~ 9 prepares;
B () at least one general formula is AlR
mx
3-morgano-aluminium compound, in formula, R is hydrogen or carbonatoms is the alkyl of 1 ~ 20, and X is halogen, and m is the number of 0<m≤3.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410176105.2A CN105085735B (en) | 2014-04-29 | 2014-04-29 | A kind of preparation method of catalytic component for olefinic polymerization |
| US15/307,209 US10174141B2 (en) | 2014-04-29 | 2015-04-29 | Preparation method of a catalyst component for olefin polymerization |
| CA2947189A CA2947189C (en) | 2014-04-29 | 2015-04-29 | Preparation method of a catalyst component for olefin polymerization |
| BR112016025376-0A BR112016025376B1 (en) | 2014-04-29 | 2015-04-29 | METHOD OF PREPARING A CATALYST COMPONENT FOR OLEFIN POLYMERIZATION |
| MYPI2016703972A MY187602A (en) | 2014-04-29 | 2015-04-29 | Preparation method of a catalyst component for olefin polymerization |
| RU2016146550A RU2673609C2 (en) | 2014-04-29 | 2015-04-29 | Method for preparation of a catalyst component used for polymerization of olefin |
| JP2016565201A JP6706582B2 (en) | 2014-04-29 | 2015-04-29 | Method for preparing catalyst component for olefin polymerization |
| EP15785255.9A EP3138856B1 (en) | 2014-04-29 | 2015-04-29 | Method for preparation of a catalyst component used for olefin polymerization |
| KR1020167033297A KR102172790B1 (en) | 2014-04-29 | 2015-04-29 | Method for preparation of a catalyst component used for olefin polymerization |
| PCT/CN2015/077844 WO2015165405A1 (en) | 2014-04-29 | 2015-04-29 | Method for preparation of a catalyst component used for olefin polymerization |
| SG11201609010RA SG11201609010RA (en) | 2014-04-29 | 2015-04-29 | Method for preparation of a catalyst component used for olefin polymerization |
| PH12016502158A PH12016502158A1 (en) | 2014-04-29 | 2016-10-28 | Preparation method of a catalyst component for olefin polymerization |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694423A (en) * | 2017-10-24 | 2019-04-30 | 中国石油化工股份有限公司 | Catalytic component for vinyl polymerization and preparation method thereof and catalyst for vinyl polymerization |
| CN112646064A (en) * | 2019-10-11 | 2021-04-13 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization, preparation method thereof, catalyst and application |
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| JPS6124402B2 (en) * | 1977-09-05 | 1986-06-11 | Mitsubishi Petrochemical Co | |
| CN102344508A (en) * | 2011-06-23 | 2012-02-08 | 中国石油天然气股份有限公司 | Ethylene polymerization catalyst containing ether compound, preparation method thereof, and application thereof |
| CN102453128A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization and catalyst thereof |
| CN102453171A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization and preparation method thereof |
-
2014
- 2014-04-29 CN CN201410176105.2A patent/CN105085735B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6124402B2 (en) * | 1977-09-05 | 1986-06-11 | Mitsubishi Petrochemical Co | |
| CN102453128A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization and catalyst thereof |
| CN102453171A (en) * | 2010-10-19 | 2012-05-16 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization and preparation method thereof |
| CN102344508A (en) * | 2011-06-23 | 2012-02-08 | 中国石油天然气股份有限公司 | Ethylene polymerization catalyst containing ether compound, preparation method thereof, and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109694423A (en) * | 2017-10-24 | 2019-04-30 | 中国石油化工股份有限公司 | Catalytic component for vinyl polymerization and preparation method thereof and catalyst for vinyl polymerization |
| CN109694423B (en) * | 2017-10-24 | 2021-07-30 | 中国石油化工股份有限公司 | Catalyst component for ethylene polymerization, preparation method thereof and catalyst for ethylene polymerization |
| CN112646064A (en) * | 2019-10-11 | 2021-04-13 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization, preparation method thereof, catalyst and application |
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