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Porous molded body, method for producing same, alpha-olefin dimerization catalyst, method for producing alpha-olefin dimerization catalyst, and method for producing alpha-olefin dimerization

A manufacturing method and technology of molded bodies, applied in the direction of catalyst carrier, carbon compound catalyst, catalyst activation/preparation, etc., can solve the problem of insufficient catalyst life

Pending Publication Date: 2020-11-10
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, although the initial activity is high, the catalyst life is not long enough, so the research to prolong the catalyst life is also continued.

Method used

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  • Porous molded body, method for producing same, alpha-olefin dimerization catalyst, method for producing alpha-olefin dimerization catalyst, and method for producing alpha-olefin dimerization
  • Porous molded body, method for producing same, alpha-olefin dimerization catalyst, method for producing alpha-olefin dimerization catalyst, and method for producing alpha-olefin dimerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0206] 〔Porous molding (X1)〕

[0207] As the porous molded body (X1), Saint-Gobain Co., Ltd. Al 2 o 3 (product number; SA5102, diameter 3.0mm, height 2mm-7mm, pore volume 0.26mL / g, median pore diameter 1.17μm, crushing strength 9.4kgf).

[0208] 〔Manufacture of porous molded body (Y1)〕

[0209] 57.5 g of the porous molded body (X1) was impregnated with 30% by mass of K 2 CO 3 In 100 g of the aqueous solution, it was left still at room temperature (25° C.) for 5 hours. Then, using a sieve (mesh diameter: 710 μm) from K 2 CO 3 The porous molded body (X1) was taken out from the aqueous solution, and heat-treated in an electric furnace at 300° C. for 2 hours in dry air to obtain 10 parts by mass of K loaded with respect to 100 parts by mass of the porous molded body (X1). 2 CO 3 porous molded body (Y1).

[0210] Table 1 shows the pore volume, median pore diameter, and radial crush strength of the obtained porous molded body (Y1).

[0211] [Preparation of catalyst (Z1) fo...

Embodiment 2

[0220] [Porous molding (X2)]

[0221] As the porous molded body (X2), Saint-Gobain Co., Ltd. Al 2 o 3 (product number; SA3132, diameter 3.0mm, height 2mm-7mm, pore volume 0.55mL / g, median pore diameter 0.87μm, crushing strength 1.5kgf).

[0222] [Manufacture of porous molded body (Y2)]

[0223] 30.9 g of the porous molded body (X2) was impregnated with 40% by mass of K 2 CO 3 100 g of the aqueous solution, and allowed to stand at room temperature for 5 hours. Then, using a sieve (mesh diameter: 710 μm) from K 2 CO 3 The porous molded body (X2) was taken out from the aqueous solution, and heat-treated in an electric furnace at 300° C. for 2 hours in dry air to obtain 32 parts by mass of K loaded with respect to 100 parts by mass of the porous molded body (X2).2 CO 3 porous molded body (Y2).

[0224] Table 1 shows the pore volume, median pore diameter, and radial crush strength of the obtained porous molded body (Y2).

[0225] [Preparation of catalyst (Z2) for α-olefin ...

Embodiment 3

[0230] [Porous molding (X3)]

[0231] As the porous molded body (X3), Saint-Gobain Co., Ltd. Al 2 o 3 (product number; SA31132, diameter 3.0mm, height 2mm-7mm, pore volume 0.77mL / g, median pore diameter 0.15μm, crushing strength 3.5kgf).

[0232] 〔Manufacture of porous molded body (Y3)〕

[0233] 26.8 g of the porous molded body (X3) was impregnated with 50% by mass of K 2 CO 3 100 g of the aqueous solution, and allowed to stand at room temperature for 5 hours. Then, using a sieve from K 2 CO 3 The porous molded body (X3) was taken out from the aqueous solution, and heat-treated at 300° C. in dry air for 2 hours in an electric furnace to obtain 68 parts by mass of K loaded with respect to 100 parts by mass of the porous molded body (X3). 2 CO 3 porous molded body (Y3).

[0234] Table 1 shows the pore volume, median pore diameter, and radial crush strength of the obtained porous molded body (Y3).

[0235] [Preparation of catalyst (Z3) for α-olefin dimerization]

[023...

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Abstract

A porous molded body (Y) which contains an alkali metal carbonate or an alkali metal bicarbonate and a porous molded body (X) that satisfies (x1) to (x3), and which is characterized in that: the [alpha]-olefin dimerization catalyst is used as a catalyst for the dimerization of [alpha]-olefin; and the content of the alkali metal carbonate or alkali metal bicarbonate is within the range of 1-230 parts by mass per 100 parts by mass of the porous molded body (X). (x1) the pore volume of pores having a pore diameter in the range of 0.01 [mu] m to 100 [mu] m is 0.10 mL / g to 1.00 mL / g; (x2) the median pore diameter of pores having a pore diameter in the range of 0.01 [mu] m to 100 [mu] m exceeds 0.01 [mu] m and is 10.0 [mu] m or less; and (x3) the crushing strength ranges from 0.7 kgf to 15.0 kgf.

Description

technical field [0001] The present invention relates to a porous molded body, a method for producing the same, a catalyst for α-olefin dimerization, a method for producing the same, and a method for producing α-olefin dimer. Background technique [0002] Dimers of α-olefins represented by 4-methyl-1-pentene (co-dimers including α-olefins. The same applies below.) are used as monomers for polyolefin production. Various basic catalysts have been proposed conventionally as a catalyst for producing a corresponding dimer by a dimerization reaction of an α-olefin (including a co-dimerization reaction of an α-olefin. The same applies hereinafter). In particular, catalysts in which an alkali metal is supported on a carrier mainly composed of an anhydrous potassium compound are often used. [0003] With regard to these catalysts, researches for further improving the catalytic activity and the availability (hereinafter, also referred to as "selectivity") of the target substance have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J35/10B01J27/232B01J32/00C07C2/10C07C11/113C07B61/00
CPCC07B61/00C07C2/10C07C11/113B01J23/04B01J37/0207Y02P20/52B01J35/633B01J35/657B01J35/37B01J27/232B01J35/60B01J21/04B01J37/0018C07C2/24C07C2521/04C07C2523/04B01J37/02C07C2/12B01J37/0201B01J35/19B01J35/30B01J35/635B01J35/647B01J35/651B01J35/653
Inventor 新城亮川原润村上雅美
Owner MITSUI CHEM INC