CN107880189A - Catalytic component and its preparation and application for olefinic polymerization - Google Patents
Catalytic component and its preparation and application for olefinic polymerization Download PDFInfo
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- CN107880189A CN107880189A CN201610875836.5A CN201610875836A CN107880189A CN 107880189 A CN107880189 A CN 107880189A CN 201610875836 A CN201610875836 A CN 201610875836A CN 107880189 A CN107880189 A CN 107880189A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The present invention relates to a kind of application for the catalytic component of olefinic polymerization, its preparation method and catalyst and the catalyst comprising the catalytic component.The catalytic component is the reaction product for including at least one organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl class compound, at least one acyl chloride compound and at least one additive；Wherein, the additive is that polystyrene block polyisobutene is birdsed of the same feather flock together compound.Not only its catalytic activity is high, the hydrogen response of catalyst is good for catalyst provided by the invention, resulting polymers bulk densities are high, and corresponding catalyst also has good particle shape and distribution, so as to be more beneficial for use of the catalyst on the polymerization technique device such as gas phase, slurry.
Description
Technical field
The invention belongs to catalytic component and its preparing technical field, and in particular to a kind of catalyst for olefinic polymerization
Component and its preparation and application.
Background technology
From after Efficient polyolefin catalyst development success the 1970s, there occurs great change for world's polyolefin industry.Closely
Over more than 20 years, with the development of olefin polymetiation process, the catalyst to match with polymerization technique has also got significant progress, its
Middle effective catalyst still occupies by its excellent polymerization and ripe application technology in polyolefin catalyst field
Consequence.By exploratory development for many years, the preparation method of Mg-Ti systems effective catalyst is also by being co-mulled and made into method, suspending and soak
Stain method develops into chemical reaction method.
In chemical reaction method, many patents of invention are related to using organic metal magnesium compound, chlorinating agent and transition metal
The chemical raw materials such as titanium compound, a variety of different types of catalyst are prepared with this kind of reactant, they are disclosed in Chinese special
Sharp CN1158136, CN1299375, CN1795213 and United States Patent (USP) US3787384, US4148754, US4173547,
In US4301029, US4508843, US4921920 and US5124296.In such Mg-Ti catalyst, there is one
The shortcomings that fatal is unmanageable forming step, so as to the form of unmanageable prepared catalyst particle.Recent development is
In the dispersion that catalyst precarsor includes magnesium titanium compound, some materials similar to emulsifying agent are added, are allowed to form breast
Liquid, then reaction precipitation goes out catalyst granules again, the particle shape of gained catalyst can be so improved, such as in Montedison
EP 0258089A in the PFPE that uses, the PFO used in Chinese patent CN 1537118A.But these
Method forming step is complicated, it is difficult to control, gained catalyst granules form is not easy to control, and used material price is high
It is high, it is difficult to obtain.
, will for preparing higher performance although having done substantial amounts of research work in Ziegler-Natta catalyst field
The Ziegler-Natta catalyst asked, it is still desirable to some new or improved methods.Therefore, the problem of presently, there are is to be badly in need of
Research and develop that a kind of preparation method is simple, and particle shape is preferable, and the catalyst with higher catalytic activity and hydrogen response.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided one kind is used for olefinic polymerization
Catalytic component and its preparation and application.The present inventor is in catalyst component for olefin polymerization and its preparation and application skill
Art field has carried out experimental study extensively and profoundly, sends out in the preparation process for the catalytic component for being currently used for olefinic polymerization and uses
Additive polystyrene block polyisobutene is birdsed of the same feather flock together compound, and not only the particle of corresponding catalyst component is more uniform, and it is to alkene
The control of the particle size and form of polymerization product can be more preferable, and the catalytic activity of corresponding catalyst and hydrogen response are high,
The bulk density of polymer resin is high.
Therefore, first aspect present invention provides a kind of catalytic component for olefinic polymerization, it is to include at least one
Kind organo-magnesium compound, at least one titanium-containing compound, at least one hydroxyl class compound, at least one acyl chloride compound
With the reaction product of at least one additive；
Wherein, the additive is that polystyrene block polyisobutene is birdsed of the same feather flock together compound.
According to the present invention, the organo-magnesium compound is logical formula (I) MgR1 nCl2-nShown compound, in logical formula (I),
R1For saturation or the C of undersaturated straight or branched2-C20Alkyl or closed chain C3-C20Alkyl, 0 ＜ n≤2.It is preferred that institute
Stating organo-magnesium compound includes di-n-butyl magnesium, diisobutyl magnesium, dioctyl magnesium, fourth octyl group magnesium, ethyl-magnesium-chloride and chlorination fourth
One or more in base magnesium.
According to the present invention, the titanium-containing compound is logical formula (II) Ti (OR2)mCl4-mShown compound, in logical formula (II)
In, R2For saturation or the C of undersaturated straight or branched2-C20Alkyl or closed chain C3-C20Alkyl, 0≤m≤4；It is excellent
M=4 or m=0 is selected, because tetravalent titanium compound is generally in a liquid state at normal temperatures, and it is also fine with the compatibility of some solvents.
It is preferred that the titanium-containing compound includes the one or more in titanium tetrachloride, tetraethyl titanate and butyl titanate；More preferably institute
It is titanium tetrachloride to state titanium-containing compound.
According to the present invention, the hydroxyl class compound is logical formula (III) HOR3Shown compound, in logical formula (III)
In, R3For saturation or the C of undersaturated straight or branched2-C20Alkyl or closed chain C3-C20Alkyl.It is preferred that described contain
Hydroxy kind compound includes fatty alcohol and/or aromatic alcohol；More preferably described hydroxyl class compound include n-butanol, n-hexyl alcohol,
One or more in isooctanol, phenmethylol and benzyl carbinol.
According to the present invention, the acyl chloride compound is logical formula (IV) R4Compound shown in COCl, in logical formula (IV),
R4For saturation or the C of undersaturated straight or branched2-C20Alkyl or closed chain C3-C20Alkyl.It is preferred that the acyl chloride
Compound is included in formyl chloride, chloroacetic chloride, propionyl chloride, butyl chloride, chlorobenzoyl chloride, phenyllacetyl chloride, phenylpropyl alcohol acyl chlorides and benzene butyl chloride
One or more；More preferably described acyl chloride compound includes one in formyl chloride, chloroacetic chloride, chlorobenzoyl chloride and phenyllacetyl chloride
Kind is a variety of.
According to the present invention, the additive polystyrene block polyisobutene (PS-b-PIB) compound of birdsing of the same feather flock together includes diblock
With three block and its derivative；It is preferred that the polystyrene block polyisobutene is birdsed of the same feather flock together the block type of compound it is optionally linear,
Band branch chain or star form.The band branch chain includes comb shape and Dendritic forms.The polystyrene block polyisobutene
The content of polyisobutene in compound of birdsing of the same feather flock together is 10wt%-95wt%, preferably 20wt%-90wt%, more preferably 72wt%-
90wt%.
Second aspect of the present invention provides a kind of preparation method of catalytic component as described in the first aspect of the invention, and it is wrapped
Include：
Step A, organo-magnesium compound and hydroxyl class compound are reacted, obtain clear solution；
Step B, additive is dispersed in C4-C20Alkane or C6-C20Aromatic solvent in, formed solution, then with step A
Obtained clear solution reaction, obtains mixed liquor；
Step C, acyl chloride compound and titanium-containing compound are added sequentially in the mixed liquor that step B is obtained, urged
Agent ingredients suspension liquid, reclaim solid particle therein and obtain the catalytic component.
According to the inventive method, in terms of every mole of organo-magnesium compound, the titanium-containing compound is 0.01-10 moles, institute
Hydroxyl class compound is stated as 0.1-20 moles, the acyl chloride compound is 0.001-20 moles, and the additive is reacting
Concentration in system is 0.001-100 grams/L.It is preferred that the titanium-containing compound is 0.05-5 moles, the hydroxyl class compound
For 0.2-10 moles, the acyl chloride compound is 0.01-10 moles, and concentration of the additive in reaction system is
0.01-50 grams/L.
According to the inventive method, in step, the reaction temperature of organo-magnesium compound and hydroxyl class compound is typically selected
Select and carry out at a higher temperature advantageously, preferably below the boiling temperature of reactant, temperature is normally no higher than 90 DEG C, and one
As be not higher than 70 DEG C.Reaction time depend on reactant property and operating condition, required time typically at 5 minutes to 2 hours,
It is preferred that 10 minutes to 1 hour.After organo-magnesium compound and the reaction of hydroxyl class compound, the solution of formation can be dilute with inertia
Agent is released to be used in mixed way, inert diluent is generally selected from aliphatic hydrocarbon, such as iso-butane, pentane, hexane, heptane or hexamethylene and
Its mixture, general hexane or heptane are proper atent solvents.
According to the inventive method, in stepb, additive is dispersed in C4-C20Alkane or C6-C20Aromatic solvent
In, it is preferably dispersed in hexane, heptane or toluene and its admixture solvent, forms solution, then the clear solution obtained with step A
It is sufficiently mixed, obtains mixed liquor.According to the species of additive and property difference, its C4-C20Alkane or C6-C20Arene solution
Configuration concentration control be 0.1-100 g/l, preferably 1-50 g/l, the amount of addition so that additive in reaction system
Concentration is 0.001-100 g/l, preferably 0.01-50 g/l.Mixing temperature will typically be less than the boiling temperature of system, for side
Just for the sake of, it is typically chosen between 0-90 DEG C, preferably between 10-50 DEG C.Both incorporation times are typically chosen 0.5 minute to 5
Hour, preferably 10 minutes to 1 hour.
According to the inventive method, in step C, the uniform mixing of all substances is quickly completed at a certain temperature, first
The solution system that first two steps are obtained is reduced to certain temperature, and solution still keeps clear at such a temperature, is unlikely to
Existing muddy or precipitation, temperature can be controlled between -90 to 30 DEG C, preferably between -70 to 0 DEG C, then by acyl chloride chemical combination
Thing and titanium-containing compound are progressively slowly added to successively, and filling in favor of various materials is generally sufficiently stirred during charging
Divide mixing, charging rate is generally selected not cause significant reaction or system substantially to heat up and be defined.After being sufficiently mixed, it can use
Any of suitable method is heated up, and such as slowly, progressively, rapidly or temperature programming, different temperature-rising methods, can be obtained
The catalyst totally different to performance characteristics.In temperature-rise period, system can be changed into muddiness by clarification, precipitation be separated out, in the precipitation
In reactions steps, the reaction time of settling step should be long enough to obtain complete precipitation, and the reaction time can last 1 minute extremely
10 hours, preferably 3 minutes to 5 hours.
Experiment is found, after settling step, a period of time of reaction at a certain temperature carries out maturation process to catalyst
Particle shape than advantageous, it can improve the intensity of catalyst particle, be broken so as to reduce the particle of catalyst in the course of the polymerization process
Broken phenomenon.The final temperature of the temperature of maturation process generally greater than or equal to precipitation reaction, the time of slaking reaction can control
In 0.5-10 hours, preferably 1-5 hours.
After maturation process is carried out, typically to be washed, to remove shape in excessive reactant and preparation process
Into accessory substance, any atent solvent is used equally for this washing step, such as can select iso-butane, pentane, hexane, heptan
Alkane, hexamethylene, toluene or various aromatic hydrocarbons and its mixture etc., are generally selected after washing twice with toluene, then use hexane in experiment
Fully washing.After washing, it is dried under the protection of catalyst suspension nitrogen, to obtain catalyst fines.
Third aspect present invention provides a kind of catalyst for alkene homopolymerization or combined polymerization, and it includes the present invention the
Catalytic component prepared by catalytic component or second aspect of the present invention methods described described in one side, and at least one formula
(V)AlR5 hX3-hShown organo-aluminum compound, in logical formula (V), R5For C that is identical or differing1-C8Alkyl, X is halogen
Element, 1≤h≤3.It is preferred that the organo-aluminum compound includes triethyl aluminum (AlEt3), triisobutyl aluminium (Al (iso-Bu)3), three
N-hexyl aluminium (Al (n-C6H13)3), tri-n-octylaluminium (Al (n-C8H17)3) and diethylaluminum chloride (AlEt2Cl one kind in) or
It is a variety of.
Catalyst of the present invention can make according to the well-known way of this area olefinic polymerization Ziegler-Natta catalyst
With, such as it is used together with another co-catalyst or electron donor, can also be neat by the catalyst of the present invention and one or more
Ge Le-Natta catalyst or non-Ziegler-Natta catalyst are used in mixed way.
Fourth aspect present invention provides a kind of catalytic component as described in the first aspect of the invention, such as present invention second
Catalytic component prepared by aspect methods described or the catalyst as described in third aspect present invention are in alkene homopolymerization or copolymerization
Close the application in reaction.
Catalytic component and catalyst of the present invention are applied to the various any alkene that can carry out coordination poly-merization
Hydrocarbon, including a kind of homopolymerization of alkene or the combined polymerization of a variety of alkene.It is preferred that the alkene include the α such as ethene, propylene, butylene-
Alkene, or the mixture of ethene, propylene, butylene and one or more alpha-olefins.Preferable comonomer is C2-C12Alkene,
It is preferred that C4-C10Alkene, such as 1- butylene, isobutene, 1- amylenes, 1- hexenes, 1- heptene, 1- octenes, 1- nonenes, 1- decene and 4- first
Base -1- amylenes, diene such as butadiene, Isosorbide-5-Nitrae-hexadiene and 1,7- octadiene, cyclenes such as ENB, and any of theirs mix
Compound.
Catalyst of the present invention can be gathered in one or more polymer reactors using typical polymerization technology
Reaction is closed, can be gas phase, slurry or bulk polymerization, polymerisation can be intermittently or serially polymerization process.
To slurry or bulk reaction device, reaction temperature is typically at 40-130 DEG C, preferably 60-110 DEG C；Reactor pressure one
As in 0.2-8MPa, preferably 1-6MPa；Residence time is typically in 0.2-6 hours, preferably 0.5-3 hours.It is typically chosen boiling
Point uses in the aliphatic hydrocarbon of -70 to 100 DEG C of scopes as diluent；If desired, polymerisation can be at supercritical conditions
Carry out.
For Gas-phase reactor, reaction temperature is typically at 60-130 DEG C, preferably 70-110 DEG C；Reactor pressure typically exists
0.5-4MPa, preferably 1-3MPa；Residence time is typically in 0.5-10 hours, preferably 1-8 hours.If desired, selection is closed
Suitable aliphatic hydrocarbon is used as diluent, and polymerisation can be carried out under the conditions of frozen state.
Catalyst amount is generally dependent on property, type of reactor and the operating condition of catalyst and to polymerizate
The requirement of energy, can use conventional catalyst dosage.
Catalyst of the present invention has higher catalytic activity and preferable hydrogen response, polymerizate form energy
Enough particle shapes for preferably replicating catalyst, i.e., so-called " print effect ", the bulk density of polymer resin is high, therefore this is urged
Agent has excellent combination property.
Embodiment
To make the present invention easier to understand, the present invention is described in detail below in conjunction with embodiment, these embodiments are only
Serve illustrative, it is not limited to application of the invention.
The method of testing used in the present invention is as follows：
(1) size distribution of carrier and catalyst uses MASTERSIZE particles distribution instruments, and n-hexane is surveyed as dispersant
It is 0.02-2000 μm to measure scope.
(2) relative weight percents of metal (mainly titanium, magnesium) use plasma emission spectrum in catalyst system
(ICP) measure.
(3) pattern of catalyst and polymer is measured using ESEM (SEM).
(4) melt index (MI2.16) determined using ASTM-D 1238.
(5) bulk density (BD) is determined using DIN-53194.
Embodiment
Embodiment 1
The preparation of catalytic component：Take successively 30mL hexanes, 3.15mL di-n-butyl magnesium hexane solution (1M) and
1.0mL isooctanol, 50 DEG C of maintenance stirring reaction half an hour are warming up to, obtain clear solution, then add the poly- isobutyl of polystyrene
Hexane solution (10g/L) 2mL of alkene diblock copolymer (polyisobutene content is 72wt%), is cooled to -50 DEG C, sequentially adds
0.4mL chlorobenzoyl chlorides and 0.35mL titanium tetrachlorides, after maintaining low-temp reaction half an hour, slowly heating, after being warmed to room temperature, adds naturally
Heat maintains 50 DEG C to react 2 hours.Catalyst suspension temperature is down to room temperature, stood, sedimentation, is washed three times with hexane, every time
The dosage of hexane is 50mL, dry that brown solid mobility powder is catalytic component after the completion of washing, measures its average grain
Footpath is 29.3 μm.Elementary analysis (ICP)：Ti:8.86wt%, Mg:15.96wt%.
Vinyl polymerization is evaluated：1L hexanes, 1mmol triethyl aluminums and a certain amount of catalytic component are added to 2L stainless steels
In stirred tank, temperature is then brought up to 85 DEG C, the disposable hydrogen for adding 0.18MPa, then with ethene by the stagnation pressure of system
Power maintains 1.03MPa and carries out polymerisation, after reacting 2 hours, stops adding ethene, cooling, pressure release, polyethylene powder claims
Weight, calculates the activity of catalyst, tests the bulk density of polyethylene powder and the melt index under 2.16Kg loads, as a result see
Table 1.
Embodiment 2
With embodiment 1, difference is the preparation method of catalytic component, will be added in catalytic component preparation process
" 0.4mL chlorobenzoyl chlorides " be changed to " 0.8mL chlorobenzoyl chlorides ".Its average grain diameter is measured as 35.1 μm.Elementary analysis (ICP)：Ti:
9.69wt%, Mg:14.29wt%.
For the ethene slurry polymerization evaluation method of catalyst with embodiment 1, polymerization result is shown in Table 1.
Embodiment 3
The preparation method of catalytic component is with embodiment 1, and difference is, by catalytic component preparation process
" 0.4mL chlorobenzoyl chlorides " is changed to " 0.4mL chloroacetic chlorides ".Its average grain diameter is measured as 21.3 μm.Elementary analysis (ICP)：Ti:
10.07wt%, Mg:15.72wt%.
For the ethene slurry polymerization evaluation method of catalyst with embodiment 1, polymerization result is shown in Table 1.
Comparative example 1
With embodiment 1, difference is the preparation method of catalytic component, is added without in catalytic component preparation process
" hexane solution (10g/L) 2mL " of polystyrene polyisobutene diblock copolymer (content of polyisobutene is 72wt%), survey
It is 56.2 μm to obtain its average grain diameter, and particle diameter distribution is wider multi-modal.Elementary analysis (ICP)：Ti:11.15wt%,
Mg:14.32wt%.
For the ethene slurry polymerization evaluation method of catalyst with embodiment 1, polymerization result is shown in Table 1.
Comparative example 2
The preparation of catalytic component：Take successively 30mL hexanes, 3.15mL di-n-butyl magnesium hexane solution (1M) and
1.0mL isooctanol, 50 DEG C of maintenance stirring reaction half an hour are warming up to, obtain clear solution, then add Kraton FG1901
(polystyrene polybutadiene triblock copolymer, wherein polybutadiene content are 70wt%) hexane solution (10g/L) 3mL, drop
Temperature sequentially adds 0.2mL chlorobenzoyl chlorides and 0.35mL titanium tetrachlorides to -50 DEG C, after maintaining low-temp reaction half an hour, naturally slowly
Heating, after being warmed to room temperature, heating maintains 50 DEG C to react 2 hours.Catalyst suspension temperature is down to room temperature, stood, is settled, is used
Hexane washs three times, and the dosage of each hexane is 50mL, dry that brown solid mobility powder is catalyst after the completion of washing
Component, its average grain diameter is measured as 12.4 μm.Elementary analysis (ICP)：Ti:10.82wt%, Mg:15.26wt%.
For the ethene slurry polymerization evaluation method of catalyst with embodiment 1, polymerization result is shown in Table 1.
Table 1
The experimental data of embodiment and comparative example can be seen that from table 1 uses in the preparation process of catalytic component
Polystyrene block polyisobutene is birdsed of the same feather flock together compound additive, and obtained catalyst and the particle shape of polymer is good, vinyl polymerization
Active high, the bulk density of polymer resin is higher, high melt index, catalyst high comprehensive performance.
It should be noted that embodiment described above is only used for explaining the present invention, do not form to any of the present invention
Limitation.By referring to exemplary embodiments, invention has been described, it should be appreciated that word wherein used is descriptive
With explanatory vocabulary, rather than limited vocabulary.The present invention can be made within the scope of the claims by regulation
Modification, and the present invention is revised in without departing substantially from scope and spirit of the present invention.Although the present invention described in it relates to
And specific method, material and embodiment, it is not intended that the present invention is limited to wherein disclosed particular case, on the contrary, this hair
It is bright to can be extended to other all methods and applications with identical function.
Claims (10)
1. for the catalytic component of olefinic polymerization, it is to include at least one organo-magnesium compound, at least one titaniferous chemical combination
Thing, at least one hydroxyl class compound, the reaction product of at least one acyl chloride compound and at least one additive；
Wherein, the additive is that polystyrene block polyisobutene is birdsed of the same feather flock together compound.
2. catalytic component according to claim 1, it is characterised in that the organo-magnesium compound is logical formula (I)
MgR1 nCl2-nShown compound, in logical formula (I), R1For saturation or the C of undersaturated straight or branched2-C20Alkyl or
The C of closed chain3-C20Alkyl, 0 ＜ n≤2；
It is preferred that the organo-magnesium compound includes di-n-butyl magnesium, diisobutyl magnesium, dioctyl magnesium, fourth octyl group magnesium, tonsilon
One or more in magnesium and butyl magnesium chloride.
3. the catalytic component according to claim 1 or 2, it is characterised in that the titanium-containing compound is logical formula (II) Ti
(OR2)mCl4-mShown compound, in logical formula (II), R2For saturation or the C of undersaturated straight or branched2-C20Alkyl
Or the C of closed chain3-C20Alkyl, 0≤m≤4；
It is preferred that the titanium-containing compound includes the one or more in titanium tetrachloride, tetraethyl titanate and butyl titanate.
4. according to the catalytic component described in any one in claim 1-3, it is characterised in that the hydroxyl class compound
To lead to formula (III) HOR3Shown compound, in logical formula (III), R3For saturation or the C of undersaturated straight or branched2-C20
Alkyl or closed chain C3-C20Alkyl；
It is preferred that the hydroxyl class compound includes fatty alcohol and/or aromatic alcohol；More preferably described hydroxyl class compound includes
One or more in n-butanol, n-hexyl alcohol, isooctanol, phenmethylol and benzyl carbinol.
5. according to the catalytic component described in any one in claim 1-4, it is characterised in that the acyl chloride compound is
Logical formula (IV) R4Compound shown in COCl, in logical formula (IV), R4For saturation or the C of undersaturated straight or branched2-C20's
The C of alkyl or closed chain3-C20Alkyl；
It is preferred that the acyl chloride compound includes formyl chloride, chloroacetic chloride, propionyl chloride, butyl chloride, chlorobenzoyl chloride, phenyllacetyl chloride, benzene
One or more in propionyl chloride and benzene butyl chloride.
6. according to the catalytic component described in any one in claim 1-5, it is characterised in that the polystyrene block gathers
Isobutylene-based polymer includes diblock and three block and its derivative；It is preferred that the polystyrene block polyisobutene Type of Collective
The block type of thing is optionally linear, band branch chain or star form；
It is preferred that the polystyrene block polyisobutene is birdsed of the same feather flock together, the content of polyisobutene is 10wt%-95wt% in compound, more excellent
Elect 20wt%-90wt% as.
7. the preparation method of catalytic component as described in any one in a kind of 1-6 such as claim, it includes：
Step A, organo-magnesium compound and hydroxyl class compound are reacted, obtain clear solution；
Step B, additive is dispersed in C4-C20Alkane or C6-C20Aromatic solvent in, form solution, then obtained with step A
Clear solution reaction, obtain mixed liquor；
Step C, acyl chloride compound and titanium-containing compound are added sequentially in the mixed liquor that step B is obtained, obtain catalyst
Ingredients suspension liquid, reclaim solid particle therein and obtain the catalytic component.
8. preparation method according to claim 7, it is characterised in that in terms of every mole of organo-magnesium compound, the titaniferous
Compound is 0.01-10 moles, and the hydroxyl class compound is 0.1-20 moles, and the acyl chloride compound is 0.001-20
Mole, concentration of the additive in reaction system is 0.001-100 grams/L；It is preferred that the titanium-containing compound rubs for 0.05-5
You, the hydroxyl class compound is 0.2-10 moles, and the acyl chloride compound is 0.01-10 moles, and the additive exists
Concentration in reaction system is 0.01-50 grams/L.
9. a kind of catalyst for alkene homopolymerization or combined polymerization, it includes urging described in any one in claim 1-6
Catalytic component prepared by agent component or the methods described of claim 7 or 8, and at least one logical formula (V) AlR5 hX3-hShown
Organo-aluminum compound, in logical formula (V), R5For C that is identical or differing1-C8Alkyl, X is halogen, 1≤h≤3.
10. prepared by the catalytic component, such as methods described of claim 7 or 8 in a kind of 1-6 such as claim as described in any one
The application in alkene homopolymerization or copolymerization of catalytic component or catalyst as claimed in claim 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407963A (en) * | 2018-04-28 | 2019-11-05 | 中国石油化工股份有限公司 | Catalytic component and preparation method thereof for olefinic polymerization |
| CN110407963B (en) * | 2018-04-28 | 2021-09-21 | 中国石油化工股份有限公司 | Catalyst component for olefin polymerization and preparation method thereof |
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| CN107880189B (en) | 2021-04-09 |
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