WO2011105497A1 - 混合マグネシウムジアルコキシド粒状物、その合成方法およびその利用方法 - Google Patents
混合マグネシウムジアルコキシド粒状物、その合成方法およびその利用方法 Download PDFInfo
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- WO2011105497A1 WO2011105497A1 PCT/JP2011/054160 JP2011054160W WO2011105497A1 WO 2011105497 A1 WO2011105497 A1 WO 2011105497A1 JP 2011054160 W JP2011054160 W JP 2011054160W WO 2011105497 A1 WO2011105497 A1 WO 2011105497A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/68—Preparation of metal alcoholates
- C07C29/70—Preparation of metal alcoholates by converting hydroxy groups to O-metal groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic System
- C07F3/003—Compounds containing elements of Groups 2 or 12 of the Periodic System without C-Metal linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic System
- C07F3/02—Magnesium compounds
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- C—CHEMISTRY; METALLURGY
- 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
-
- C—CHEMISTRY; METALLURGY
- 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
- C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
- C08F2410/06—Catalyst characterized by its size
Definitions
- the present invention relates to a method for synthesizing a magnesium dialkoxide granular material used for a solid catalyst component for olefin polymerization.
- Magnesium diethoxide is used as a solid catalyst component for the polymerization of olefins such as propylene. Since the shape of polypropylene obtained by polymerization is similar to the shape of the polymerization catalyst, generally used magnesium diethoxide is spherical or elliptical, and is in a practical stage in consideration of the strength of the polymerization catalyst. Is used in which the average particle size represented by D 50 is several tens of ⁇ m, usually 60 ⁇ m or less.
- a method of synthesizing spherical or elliptical magnesium diethoxide by direct reaction of magnesium metal and ethyl alcohol has long been known from Patent Document 1 and the like, but this method can synthesize a product with a large bulk density. Difficult, those with a large average particle size are insufficient in strength, and when used as a solid catalyst component for polymerization of olefins, pulverization and pulverization occur in the preparation process, resulting in poor catalyst yield, Since the catalyst is also expensive, low-priced magnesium chloride or the like is widely used as a solid catalyst component for polymerization of olefins despite its excellent polymerization activity. Also, the strength of the obtained catalyst itself tends to be insufficient, and problems are likely to occur particularly when used in a fluidized bed.
- Patent Document 2 describes a mixed magnesium dialkoxide which is a mixture of a metal magnesium dialethoxide and another dialkoxide, but does not describe the bulk density of the mixed magnesium dialkoxide.
- the present invention directly causes solid-liquid reaction between granular metal magnesium having an average particle size of 50 ⁇ m to 500 ⁇ m and two or more alcohols composed of at least one of ethyl alcohol and an alcohol having 3 to 6 carbon atoms.
- granular metal magnesium having an average particle size of 50 ⁇ m to 500 ⁇ m and two or more alcohols composed of at least one of ethyl alcohol and an alcohol having 3 to 6 carbon atoms.
- magnesium dialkoxide non diethoxide and magnesium diethoxide 2.5 to 15 mol% of the total alkoxide content of non ethoxide, average particle diameter indicated by D 50 of 10 ⁇ 100 [mu] m, bulk density
- This is a mixed magnesium dialkoxide granule of 0.4 g / ml or more and a synthesis method thereof.
- alcohols used with ethyl alcohol include n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, t-butyl alcohol, pentanol, cyclohexyl alcohol, and phenol. It is not limited to. In particular, isopropyl alcohol and n-propyl alcohol are preferable. Since methyl alcohol decreases the polymerization activity of the polymerization catalyst for olefins using the obtained mixed magnesium alkoxide, it is not preferable to use it as a reactant or a solvent.
- the molar ratio of ethyl alcohol to other alcohols is preferably 97 to 85: 3 to 15 (total 100), and especially 97 to 87: 3 to 13 (total 100) of mixed alcohols.
- the proportion of other alcohol used is less than 3 mol%, the content of alkoxide other than diethoxide in the mixed magnesium dialkoxide does not reach 2.5 mol%, and the bulk density of the product in that case is 0.4 g / Can not be more than ml.
- the proportion of other alcohol used exceeds 15 mol%, it becomes difficult to aggregate the product into granular materials, and a bulk density of 0.4 g / ml or more cannot be obtained.
- ethyl alcohol and isopropyl alcohol or n-propyl alcohol are particularly preferable to use ethyl alcohol and isopropyl alcohol or n-propyl alcohol as the two kinds of alcohol.
- the magnesium dialkoxide produced when these two types of alcohols are used is composed of a mixture of magnesium diethoxide and magnesium dipropoxide, and the production rate is almost proportional to the proportion of the mixed alcohol used.
- the average particle diameter of the metallic magnesium is preferably 50 ⁇ m to 500 ⁇ m, particularly preferably 100 to 250 ⁇ m.
- Two or more kinds of alcohols composed of this granular metallic magnesium and other aliphatic alcohols such as ethyl alcohol and isopropyl alcohol are mixed with ethyl alcohol.
- the content of n-proposide or isopropoxide in the entire alkoxide is 2.5 to 13.0 mol%, and the average particle size represented by D 50 is 20 to 80 ⁇ m.
- the mixed magnesium dialkoxide granular material thus obtained is used as a solid catalyst component, using a tetravalent titanium compound such as titanium tetrachloride and an electron donating compound (donor) such as dibutyl phthalate or cyclohexylmethyldimethoxysilane.
- a polymerization catalyst for polyolefin can be produced.
- An organoaluminum compound such as triethylaluminum is used for these, and the olefin is polymerized from the olefin gas by slurry polymerization.
- a magnesium dialkoxide having high strength can be obtained by using a mixed alcohol. Therefore, when used for an olefin polymerization catalyst, there is little destruction in the preparation process, and the catalyst acquisition yield is increased. I can do it.
- the polymerization activity of the catalyst is improved by about 25% compared with the conventional product, and the yield of the resulting polyolefin can be increased by 25%.
- the strength of the obtained polymerization catalyst is greater than that of the conventional magnesium diethoxide used alone, the collapse of the catalyst during preparation of the conventional method is prevented in polyolefins and the like, resulting in an increase in the yield of polyolefin and the resulting polyolefin. This helps prevent particle shape collapse. Further, there is little catalyst loss when using the fluidized bed polymerization method, and trouble can be reduced.
- the average particle diameter of the metal magnesium used is particularly preferably 100 to 250 ⁇ m, and the molar ratio of ethyl alcohol to 97 to 85% by weight ratio of the granular metal magnesium to ethyl alcohol and isopropyl alcohol
- molar ratio 1/3 to 30 and directly reacting under reflux of the alcohol.
- an average particle size of 10 ⁇ 80 [mu] m indicated by D 50, preferably 20 to indicate the range of particle shape of 80 [mu] m bulk density can be preferably synthesized mixed magnesium dialkoxide granules above 0.4 g / ml.
- the bulk density of the mixed magnesium dialkoxide granule is 0.4 or more, preferably 0.41 or more, more preferably 0.42 or more, and preferably 0.6 or less, more preferably 0. .5 or less.
- the mixed magnesium dialkoxide granular material having a large bulk density has an effect that the pulverization loss when producing an olefin polymerization drunk catalyst using this is small, and thus the catalyst acquisition yield is high.
- the strength of the resulting polymerization-induced catalyst is high, it is expected that it can be advantageously used for gas phase polymerization of olefins.
- D 50 used here a particle size distribution of the granules were measured, the integrated value of the particle weight is intended to refer to a particle size ([mu] m) when a 50% by weight, whole numbers granules This indicates an intermediate value of the particle size.
- D 10 and D 90 indicate the particle sizes when the integrated values are 10% and 90%, respectively.
- the metal magnesium used in the present invention it is optimal that the average particle size of D 50 is 50 to 500 ⁇ m, and that the particle size distribution represented by (D 90 -D 10 ) / D 50 is 2 or less.
- Various types of metal shapes such as powder and cutting are used, but the metal particles are kept in an inert gas (such as nitrogen) atmosphere with minimal oxidation of the metal particle surface, A material that has been treated with a solvent that does not affect the reaction on the metal surface to prevent oxidation of the particle surface is suitable.
- the alcohol used together with ethyl alcohol in the present invention may have an alkyl group having 3 to 6 carbon atoms, a cycloalkyl group or an aromatic alkyl group, preferably an aliphatic alcohol having 3 to 6 carbon atoms, particularly n-Propyl alcohol, more preferably an aliphatic branched alcohol having 3 to 6 carbon atoms, particularly isopropyl alcohol.
- the reaction between magnesium metal and two kinds of alcohols may be started by adding a mixed liquid in which two kinds of alcohols are mixed in a predetermined ratio to a reaction system in which metal magnesium is present from the beginning. Only alcohol may be added to the reaction system, and two kinds of mixed alcohols may be added after the start of the reaction due to heat generation or hydrogen generation is confirmed.
- the total amount of the two alcohols used relative to the magnesium metal is 3/1 to 30/1 by weight.
- the amount of the two alcohols is less than 3 times the amount of magnesium, the smooth reaction does not proceed, and the residual metal magnesium unreacted substance and the particle size cannot be controlled.
- the ratio exceeds 30 times, a lot of alcohol is contained in the particles formed by the reaction, and when the alcohol is distilled off during drying, a lot of voids are generated in the particles, and particles with low bulk density are made. Not suitable for.
- the mixed magnesium dialkoxide granular material of the present invention is composed of a porous material in which primary particles of a mixed magnesium dialkoxide having a particle diameter of 1 to 10 ⁇ m in the form of a sphere, ellipse, scale or needle are aggregated.
- a catalyst In the synthesis reaction of the magnesium dialkoxide of the present invention, it is preferable to use a catalyst.
- the catalyst alkyl halide, metal halide, iodine and the like are used.
- the amount used is 0.1 to 20.0% by mass, preferably 0.5 to 10.0% by mass, based on the magnesium metal.
- the catalyst is best added at the start of the reaction, but the reaction may be carried out in addition to the divided addition of raw materials.
- the addition method of metallic magnesium and two kinds of alcohols to the reaction system may be either divided addition or continuous addition.
- the addition is carried out over 10 to 1200 minutes.
- it may be carried out in an appropriate number of times, but it is preferably carried out 5 times or more, and addition of alcohol other than ethyl alcohol is up to half of the total reaction time. It is preferable to complete the addition at the stage.
- Split addition to the reaction is performed under reflux of the alcohol. You may perform the ratio of addition in arbitrary ratios.
- the reaction is performed under reflux of alcohol.
- the stirring speed is 20 rpm to 600 rpm, and the stirring speed varies depending on the target particle size and bulk density.
- the reaction time is 10 minutes to 1200 minutes including the addition time of raw materials.
- a preferable reaction time is 60 minutes to 240 minutes including the addition time of raw materials.
- the completion of the reaction can be known from the end of the generation of hydrogen, but after completion of the reaction, it is preferable to stir for 30 to 90 minutes in the temperature range of 50 to 120 ° C.
- Part means part by mass.
- IPA means isopropyl alcohol and n-PA means n-propyl alcohol.
- Example 1 After sufficiently replacing the inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer with N 2, 200.0 parts of ethyl alcohol and 27.0 parts of IPA were added, and 100 to 100 at room temperature. Stirring was performed at a stirring speed of 300 rpm. After the rotation speed was stabilized, 3.0 parts of iodine as a catalyst and 6.0 parts of metallic magnesium as a raw material were added with 50.0 parts of ethyl alcohol with stirring, and the mixture was further stirred at room temperature for 30 minutes. The temperature was raised by heating using an oil bath and the reaction was allowed to proceed for 15 minutes under reflux of alcohol.
- the obtained granular material has a particle size of D 50 53.6 ⁇ m, D 10 18.4 ⁇ m, D 90 251.4 ⁇ m, and the particle size distribution represented by (D 90 -D 10 ) / D 50 is 4.35. there were.
- the bulk density was 0.456 g / ml (measured in accordance with JIS K-51011-12-1 (2004)).
- the particle size and particle size distribution were measured with Microtrac MT-3200 (Nikkiso Co., Ltd.).
- Example 2 After sufficiently replacing the inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer with N 2, 180.0 parts of ethyl alcohol was added, and the stirring rate was 100 to 300 rpm at room temperature. Stir. After the rotation speed was stabilized, 3.0 parts of iodine as a catalyst and 6.0 parts of metallic magnesium as a raw material were added with 50.0 parts of ethyl alcohol with stirring, and the mixture was further stirred at room temperature for 30 minutes. The temperature was raised by heating using an oil bath and the reaction was allowed to proceed for 15 minutes under reflux of alcohol.
- the obtained reaction solution was transferred to a rotary evaporator, and ethyl alcohol was distilled off under conditions of 60 ° C. and 100 mmHg to obtain 122.1 parts of a dried mixed magnesium dialkoxide.
- the obtained granular material has a particle size of D 50 40.5 ⁇ m, D 10 20.3 ⁇ m, D 90 167.5 ⁇ m, and the particle size distribution represented by (D 90 -D 10 ) / D 50 is 3.63. there were.
- the bulk density was 0.437 g / ml (measured in accordance with JIS K-5111-11-1 (2004)).
- the particle size and particle size distribution were measured with Microtrac MT-3200 (Nikkiso Co., Ltd.).
- Example 3 After sufficiently replacing the inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer with N 2, 200.0 parts of ethyl alcohol and 27.0 parts of n-PA were added, and at room temperature. Stirring was performed at a stirring speed of 100 to 300 rpm. After the rotation speed was stabilized, 3.0 parts of iodine as a catalyst and 6.0 parts of metallic magnesium as a raw material were added with 50.0 parts of ethyl alcohol with stirring, and the mixture was further stirred at room temperature for 30 minutes. The temperature was raised by heating using an oil bath and the reaction was allowed to proceed for 15 minutes under reflux of alcohol.
- the obtained granular material has a particle size of D 50 45.6 ⁇ m, D 10 20.4 ⁇ m, D 90 200.4 ⁇ m, and the particle size distribution represented by (D 90 -D 10 ) / D 50 is 3.94. there were.
- the bulk density was 0.466 g / ml (measured according to JIS K-51011-12-1 (2004)).
- the particle size and particle size distribution were measured with Microtrac MT-3200 (Nikkiso Co., Ltd.).
- Example 4 The inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer was sufficiently substituted with N 2, and then 205.9 parts of ethyl alcohol and 19.2 parts of IPA were added and the same as in Example 1. Went to. The total amount of ethyl alcohol added was 405.9 parts (96.5 mol%), and the total amount of IPA added was 19.2 parts (3.5 mol%). The obtained granule has a particle size of D 50 21.6 ⁇ m, D 10 6.7 ⁇ m, D 90 90.8 ⁇ m, and the particle size distribution represented by (D 90 -D 10 ) / D 50 is 3.90. there were. The bulk density was 0.461 g / ml (measured in accordance with JIS K-51011-12-1 (2004)). The particle size and particle size distribution were measured with Microtrac MT-3200 (Nikkiso Co., Ltd.).
- Example 5 The inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer was sufficiently substituted with N 2, and then 178.6 parts of ethyl alcohol and 55.0 parts of IPA were added and the same as in Example 1. Went to. The total amount of ethyl alcohol added was 378.6 parts (90.0 mol%), and the total amount of IPA added was 55.0 parts (10.0 mol%). The resulting granule had a particle size of D 50 33.7 ⁇ m, D 10 10.1 ⁇ m, D 90 237.0 ⁇ m, and the particle size distribution indicated by (D90-D10) / D50 was 6.70. The bulk density was 0.419 g / ml (measured according to JIS K-51011-12-1 (2004)). The particle size and particle size distribution were measured with Microtrac mt-3200 (Nikkiso Co., Ltd.).
- Comparative Example 1 After sufficiently replacing the inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer with N 2 , add 149.7 parts of ethyl alcohol, and stir at 100 to 300 rpm at room temperature. Stir. After the rotation speed was stabilized, 2.3 parts of iodine as a catalyst, 5.0 parts of magnesium metal as raw material and 34.0 parts of ethyl alcohol were added with stirring, and the mixture was further stirred at room temperature for 30 minutes. The temperature was raised by heating using an oil bath and the reaction was allowed to proceed for 15 minutes under reflux of alcohol.
- the obtained magnesium diethoxide has a particle size distribution of D 50 42.1 ⁇ m, D 10 27.9 ⁇ m, D 90 95.4 ⁇ m, and the particle size distribution represented by (D 90 -D 10 ) / D 50 is 1. 60.
- the bulk density was 0.319 g / ml (measured according to JIS K-5111-11-1 (2004)).
- the particle size and particle size distribution were measured with Microtrac MT-3200 (Nikkiso Co., Ltd.).
- Comparative Example 2 After sufficiently replacing the inside of the reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer with N 2, 82.8 parts of ethyl alcohol and 87.1 parts of IPA were added, and 100 to 100 at room temperature. Stirring was performed at a stirring speed of 300 rpm. After the rotational speed was stabilized, 2.3 parts of iodine as a catalyst and 5.0 parts of raw metal magnesium were added with stirring, and the mixture was further stirred at room temperature for 30 minutes. The temperature was raised by heating using an oil bath and the reaction was allowed to proceed for 15 minutes under reflux of alcohol.
- Comparative Example 3 The inside of a reaction vessel equipped with a gas meter for H 2 flow rate, a reflux condenser, a thermometer, and a stirrer was sufficiently substituted with N 2, and then 122.3 parts of ethyl alcohol and 11.0 parts of IPA were added, and the same as in Example 1. Went to. The total amount of ethyl alcohol added was 412.3 parts (98.0 mol%), and the total amount of IPA added was 11.0 parts (2.0 mol%). The obtained granule has a particle size of D 50 32.7 ⁇ m, D 10 11.9 ⁇ m, D 90 158.4 ⁇ m, and a particle size distribution represented by (D 90 -D 10 ) / D 50 is 4.50. there were. The bulk density was 0.287 g / ml (measured according to JIS K-51011-12-1 (2004)). The particle size and particle size distribution were measured with Microtrac MT-3200 (Nikkiso Co., Ltd.).
- Example of use (catalyst component preparation) 1) A reaction vessel equipped with a cooler and a stirrer in which 10.0 parts of each of the magnesium dialkoxides obtained in Examples 1 to 5 and Comparative Examples 1 and 3 were sufficiently substituted with N 2 for 80 ml of toluene. In addition, 20 ml of titanium tetrachloride is added with stirring and heated to 90 ° C. with stirring. 2) Add 2.7 ml of dibutyl phthalate at 90 ° C. and react for 2 hours. Agitation was stopped and the supernatant was removed. 3) After adding 100 ml of toluene and stirring for 10 minutes, the stirring was stopped and the phase difference for removing the supernatant was performed twice.
- the catalytic activity was determined from the Ti loading ratio of the catalyst used and the amount of the obtained polymer.
- Table 1 shows that the mixed magnesium dialkoxide has a catalytic activity higher by about 100 g / mmo-Ti ⁇ h than that of magnesium diethoxide alone.
- the product of Comparative Example 2 was unable to adjust the polymerization catalyst.
- the propoxide group contained in the mixed magnesium dialkoxide was measured, and the amount of IPA or n-PA actually added was compared with the amount of the corresponding group contained in the produced mixed magnesium dialkoxide.
- Take 3.0 g of mixed magnesium dialkoxide and magnesium diethoxide add 57.4 g of ion-exchanged water, and stir. After sufficiently stirring, 5.2 g of concentrated nitric acid is added, and the mixture is stirred for 1 hour for hydrolysis. After the reaction solution was filtered, analysis was performed with GC-2014 manufactured by Shimadzu Corporation.
- Table 2 shows that when the range of use of IPA or n-PA is within the range of the claims, about 80 to 90% of the added amount reacts and is contained in the mixed magnesium dialkoxide as a propoxide group. However, it can be seen that when the amount added is below a certain level, the reactivity with magnesium also decreases, and the amount of alkoxide groups other than ethoxide introduced into the dialkoxide decreases.
- the present invention is useful industrially because it provides magnesium dialkoxide particulates used as a solid catalyst component for olefin polymerization.
Abstract
Description
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール200.0部及びIPA27.0部を加え、室温にて100~300rpmの撹拌速度で撹拌した。回転速度が安定した後に触媒としてのヨウ素3.0部、原料の金属マグネシウム6.0部をエチルアルコール50.0部と共に攪拌下で加え、室温下で更に30分間撹拌した。油浴を用いて加熱して温度を上昇させ、アルコールの還流下で15分間反応させた。この後に、撹拌条件及び温度条件を一定にした状態で、金属マグネシウム4.8部とエチルアルコール20.0部を20分~3分間隔で5回加えた後に、100分間アルコール還流下で反応しH2の発生の無いことを確認してエチルアルコール50.0部を加え反応終了とした。この時の金属マグネシウムの総添加量は30.0部、エチルアルコールの総添加量は400部(95.0モル%)、IPAの総添加量は27.0部(5.0モル%)で、総反応時間は180分であった。得られた反応液をロータリーエヴァポレーターに移し60℃、100mmHgの条件下でエチアルコールの留去を行い、乾燥した混合マグネシウムジアルコキシド121.3部を得た。得られた粒状物のD5053.6μm、D1018.4μm、D90251.4μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、4.35であった。嵩密度は、0.456g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックMT-3200(日機装株式会社)にて行った。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール180.0部を加え、室温にて100~300rpmの撹拌速度で撹拌した。回転速度が安定した後に触媒としてのヨウ素3.0部、原料の金属マグネシウム6.0部をエチルアルコール50.0部と共に攪拌下で加え、室温下で更に30分間撹拌した。油浴を用いて加熱して温度を上昇させ、アルコールの還流下で15分間反応させた。この後に、撹拌条件及び温度条件を一定にした状態で、金属マグネシウム4.8部とエチルアルコール0.4部及びIPA27.0部を加えた後にさらに金属マグネシウム4.8部とエチルアルコール20.0部を20分~3分間隔で4回加えた後に、100分間アルコール還流下で反応しH2の発生の無いことを確認してエチルアルコール50.0部を加え反応終了とした。この時の金属マグネシウムの総添加量は30.0部、エチルアルコールの総添加量は400部(95.0モル%)、IPAの総添加量は27.0部(5.0モル%)で総反応時間は180分であった。得られた反応液をロータリーエヴァポレーターに移し60℃、100mmHgの条件下でエチルアルコールの留去を行い、乾燥した混合マグネシウムジアルコキシド122.1部を得た。得られた粒状物のD5040.5μm、D1020.3μm、D90167.5μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、3.63であった。嵩密度は、0.437g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックMT-3200(日機装株式会社)にて行った。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール200.0部及びn-PA27.0部を加え、室温にて100~300rpmの撹拌速度で撹拌した。回転速度が安定した後に触媒としてのヨウ素3.0部、原料の金属マグネシウム6.0部をエチルアルコール50.0部と共に攪拌下で加え、室温下で更に30分間撹拌した。油浴を用いて加熱して温度を上昇させ、アルコールの還流下で15分間反応させた。この後に、撹拌条件及び温度条件を一定にした状態で、金属マグネシウム4.8部とエチルアルコール20.0部を20分~3分間隔で5回加えた後に、100分間アルコール還流下で反応しH2の発生の無いことを確認してエチルアルコール50.0部を加え反応終了とした。この時の金属マグネシウムの総添加量は30.0部、エチルアルコールの総添加量は400.0部(5.0モル%)、n-PAの総添加量は27.0部(5.0モル%)で、総反応時間は180分であった。得られた反応液をロータリーエヴァポレーターに移し60℃、100mmHgの条件下でエチアルコールの留去を行い、乾燥した混合マグネシウムジアルコキシド120.1部を得た。得られた粒状物のD5045.6μm、D1020.4μm、D90200.4μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、3.94であった。嵩密度は、0.466g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックMT-3200(日機装株式会社)にて行った。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール205.9部及びIPA19.2部を加え、実施例1と同様に行った。エチルアルコールの総添加量は、405.9部(96.5モル%)、IPAの総添加量は、19.2部(3.5モル%)であった。得られた粒状物のD5021.6μm、D106.7μm、D9090.8μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、3.90であった。嵩密度は、0.461g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックMT-3200(日機装株式会社)にて行った。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール178.6部及びIPA55.0部を加え、実施例1と同様に行った。エチルアルコールの総添加量は、378.6部(90.0モル%)、IPAの総添加量は、55.0部(10.0モル%)であった。得られた粒状物のD5033.7μm、D1010.1μm、D90237.0μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、6.70であった。嵩密度は、0.419g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックmt-3200(日機装株式会社)にて行った。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール149.7部を加え、室温にて100~300rpmの撹拌速度で撹拌した。回転速度が安定した後に触媒としてのヨウ素2.3部、原料の金属マグネシウム5.0部エチルアルコール34.0部と共に攪拌下で加え、室温下で更に30分間撹拌した。油浴を用いて加熱して温度を上昇させ、アルコールの還流下で15分間反応させた。この後に、撹拌条件及び温度条件を一定にした状態で、金属マグネシウム4.0部とエチルアルコール17.0部を20分~3分間隔で5回加えた後に、100分間アルコール還流下で反応し、H2の発生の無いことを確認してエチルアルコール32.7部を加え反応終了とした。この時の金属マグネシウムの総添加量は25.0部、エチルアルコールの総添加量は334.1部総反応時間は180分であった。得られた反応液をロータリーエヴァポレーターに移し60℃、100mmHgの条件下でエチアルコールの留去を行い、乾燥したマグネシウムジエトキシド120.1部を得た。得られたマグネシウムジエトキシドのD5042.1μm、D1027.9μm、D9095.4μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、1.60であった。嵩密度は、0.319g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックMT-3200(日機装株式会社)にて行った。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール82.8部及びIPA87.1部を加え、室温にて100~300rpmの撹拌速度で撹拌した。回転速度が安定した後に触媒としてのヨウ素2.3部、原料の金属マグネシウム5.0部を攪拌下で加え、室温下で更に30分間撹拌した。油浴を用いて加熱して温度を上昇させ、アルコールの還流下で15分間反応させた。この後に、撹拌条件及び温度条件を一定にした状態で、金属マグネシウム4.0部とエチルアルコール17.0部を20分~3分間隔で5回加えた後に、100分間アルコール還流下で反応しH2の発生の無いことを確認してエチルアルコール65.4部を加え反応終了とした。この時の金属マグネシウムの総添加量は25.0部、エチルアルコールの総添加量は267.2部(80.0モル%)、IPAの総添加量は87.1部(20.0モル%)で、総反応時間は180分であった。得られた反応液をロータリーエヴァポレーターに移し60℃、100mmHgの条件下でエチアルコールを行い、乾燥した混合マグネシウムジアルコキシド129.1部を得た。得られたマグネシウムジアルコキシドは、殆どが凝集し、粒度分布及び嵩密度を測定できなかった。
H2流量用ガスメーター、還流用冷却器、温度計、攪拌機を備えた反応容器内をN2にて十分に置換した後にエチルアルコール212.3部及びIPA11.0部を加え、実施例1と同様に行った。エチルアルコールの総添加量は、412.3部(98.0モル%)、IPAの総添加量は、11.0部(2.0モル%)であった。得られた粒状物のD5032.7μm、D1011.9μm、D90158.4μmの粒径を示し、(D90-D10)/D50で示される粒度分布は、4.50であった。嵩密度は、0.287g/ml(JIS K-51011-12-1(2004)に準拠して測定)を示した。なお粒径及び粒度分布の測定にはマイクロトラックMT-3200(日機装株式会社)にて行った。
(触媒成分調製)
1)実施例1~5及び比較例1、3で得られたマグネシウムジアルコキシドを各々10.0部を用い、これにトルエン80mlをN2で十分に置換した冷却器、攪拌機を設置した反応容器に加え、撹拌しながら四塩化チタン20mlを加え90℃まで加熱撹拌する。 2)90℃にてフタル酸ジブチル2.7mlを加え2時間反応させる。撹拌を停止して上澄み液を除去した。
3)トルエン100mlを加え10分間撹拌した後に撹拌を停止し、上澄みを除去する相差を2回行った。
4)反応容器にトルエン80ml、四塩化チタン20ml加え90℃にて2時間反応させた。反応後、撹拌を停止し10分間静止し上澄み液を除去し40℃の温度にする。
5)ヘプタン200mlを加え10分間撹拌した後に静置し、上澄み液を除去する操作を10回行った。ヘプタン250ml加え固体触媒成分を得た。
使用した触媒のTi担持率と得られたポリマーの量から触媒活性を求めた。
1)N2で十分に置換した冷却器、攪拌機を設置した反応容器にヘプタン185mlを加え、60℃まで油浴で加熱した。60℃に達した時点でトリエチアルミニウム 10ml、シクロヘキシルメチルジメトキシシラン1mlを加え、実施例1~5及び比較例1、3で得られたマグネシウムジアルコキシドを使用して調製した固体触媒成分を5.0ml加えた。
2)プロピレンガスを2.0L/minの流量で15分間重合を行った。15分後にプロピレンガスを停止し、エタノール/塩酸(1/3)を加え重合を停止した。
3)純水約200mlを加え、洗浄処理を3回行った後に、得られたポリプロピレンを乾燥した。乾燥後得られたポリプロピレンの収量を測定した。結果を表1に示す。
Claims (6)
- マグネシウムジエトキシドと炭素数3~6のアルキル基、シクロアルキル基または芳香族アルキル基からなるアルコキシドを含むマグネシウムジアルコキシドとの混合物であって、エトキシド以外のアルコキシド含有量が全体の2.5~15モル%であり、D50で示す平均粒径が10~100μm、嵩密度が0.4g/ml以上の混合マグネシウムジアルコキシド粒状物。
- 平均粒径50μm~500μmの粒状金属マグネシウムと、エチルアルコール、および炭素数3~6のモノアルコ-ルのいずれか一種もしくは一種以上とからなる二種以上のアルコールとを直接固液反応させ、マグネシウムジエトキシドおよびマグネシウムジエトキシド以外のマグネシウムジアルコキシドを含み、エトキシド以外のアルコキシド含有量が全体の2.5~15モル%であり、D50で示す平均粒径が10~100μm、嵩密度が0.4g/ml以上の混合マグネシウムジアルコキシド粒状物の合成方法。
- エチルアルコールと炭素数3~6のアルコールとのモル割合が97~85:3~15(合計100)請求項2記載の混合マグネシウムジアルコキシド粒状物の合成方法。
- 二種以上のアルコールがエチルアルコールと炭素数3~4の脂肪族アルコールもしくはシクロヘキサノールとの混合物である請求項2又は3に記載の混合マグネシウムジアルコキシド粒状物の合成方法。
- 平均粒径100μm~250μmの粒状金属マグネシウムと、エチルアルコールおよびn-プロピルアルコールもしくはイソプルピルアルコ-ルとを直接反応させて混合マグネシウムジアルコキシド粒状物を合成する方法において、エチルアルコールの割合が97~85モル%となる様な使用割合で二種のアルコールを用い、粒状金属マグネシウムと二種のアルコールの反応系への最終添加割合を重量比で金属マグネシウム/二種アルコール=1/3~30とし、アルコールの還流下で反応させて、アルコキシド全体の中のn-プロポシドもしくはイソプロポキシドの含有量が2.5~13.0モル%であり、D50で示す平均粒径が20~80μmの範囲の粒子形状を示し、嵩密度が0.4g/ml以上である混合マグネシウムジアルコキシド粒状物の合成方法。
- 請求項1の、または請求項2~5で合成した混合マグネシウムジアルコキシドをオレフィン用重合触媒成分として使用する重合触媒への利用方法。
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JP2012171957A (ja) * | 2011-02-18 | 2012-09-10 | Colcoat Kk | 混合マグネシウムジアルコキシド粒状物、その合成方法およびその利用方法 |
JP2014181182A (ja) * | 2013-03-18 | 2014-09-29 | Japan Advanced Institute Of Science & Technology Hokuriku | マグネシウムエトキシド結晶を含有する粒子とその製造方法 |
WO2019151483A1 (ja) * | 2018-02-01 | 2019-08-08 | 東邦チタニウム株式会社 | アルコキシマグネシウムの製造方法およびアルコキシマグネシウム |
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CN107098794A (zh) * | 2017-05-18 | 2017-08-29 | 山西大学 | 一种固体乙醇镁的制备方法 |
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JP2014181182A (ja) * | 2013-03-18 | 2014-09-29 | Japan Advanced Institute Of Science & Technology Hokuriku | マグネシウムエトキシド結晶を含有する粒子とその製造方法 |
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Also Published As
Publication number | Publication date |
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EP2540693B1 (en) | 2018-04-04 |
KR101880643B1 (ko) | 2018-07-20 |
KR20130043605A (ko) | 2013-04-30 |
EP2540693A4 (en) | 2013-11-20 |
EP2540693A1 (en) | 2013-01-02 |
JP5854986B2 (ja) | 2016-02-09 |
CN102762527A (zh) | 2012-10-31 |
JPWO2011105497A1 (ja) | 2013-06-20 |
US20120322958A1 (en) | 2012-12-20 |
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