US5227352A — Catalyst composition for catalytic cracking of hy…

Claim 1

Independent Claim 146 words

A crystalline aluminosilicate which has the following characteristics: (A) an SiO 2 /Al 2 O 3 molar ratio as determined by a chemical analysis of from 5 to 15; (B) a molar ratio of Al content in the zeolite framework to the total Al of the aluminosilicate of from 0.3 to 0.6; (C) an unit cell dimension of 24.30 Å or larger but less than 24.45 Å; (D) an alkali metal content, in terms of oxide, of 0.02% by weight or more but less than 1% by weight in total; (E) a pore distribution which yields characteristic peaks at around 50 Å and at around 180 Å, with the volume of pores 100 Å or larger but smaller than 600 Å accounting for 10 to 40% of the total pore volume; and (F) an X ray diffraction pattern thereof which yields characteristic peaks of zeolite Y.

Claim 2

Dependent Claim 146 words

A crystalline aluminosilicate which has the following characteristics: (A) an SiO 2 /Al 2 O 3 molar ratio as determined by a chemical analysis of from 5 to 15; (B) a molar ratio of Al content in the zeolite framework to the total Al of the aluminosilicate of from 0.3 to 0.6; (C) an unit cell dimension of 24.30 Å or larger but less than 24.45 Å; (D) an alkali metal content, in terms of oxide, of 0.02% by weight or more but less than 1% by weight in total; (E) a pore distribution which yields characteristic peaks at around 50 Å and at around 180 Å, with the volume of pores 100 Å or larger but smaller than 600 Å accounting for 10 to 40% of the total pore volume; and (F) an X ray diffraction pattern thereof which yields characteristic peaks of zeolite Y.

Claim 3

Dependent Claim 28 words

The crystalline aluminosilicate as claimed in claim 1, where the SiO 2 /Al 2 O 3 molar ratio as determined by chemical analysis is from 5 to 12.

Claim 4

Dependent Claim 32 words

The crystalline aluminosilicate as claimed in claim 1, wherein the molar ratio of the Al content in the zeolite framework to the total Al of the aluminosilicate is from 0.35 to 0.6.

Claim 5

Dependent Claim 23 words

The crystalline aluminosilicate as claimed in claim 1, wherein the unit cell dimension is 24.30 Å or larger but less than 24.42 Å.

Claim 6

Dependent Claim 31 words

The crystalline aluminosilicate as claimed in claim 1, wherein the alkali metal content, in terms of oxide, is 0.05% by weight or more but less than 0.8% by weight in total.

Claim 7

Dependent Claim 32 words

The crystalline aluminosilicate as claimed in claim 1, wherein the volume of pores 100 Å or larger but smaller than 600 Å accounts for 15 to 35% of the total pore volume.

Claim 8

Dependent Claim 26 words

A catalyst composition for use in a catalytic cracking reaction, which is a mixture comprising the crystalline aluminosilicate of claim 1 and an inorganic oxide matrix.

Claim 9

Dependent Claim 41 words

The catalyst composition for use in a catalytic cracking reaction as claimed in claim 7, wherein the mixture comprises from 5 to 60% by weight of the crystalline aluminosilicate and from 40 to 95% by weight of the inorganic oxide matrix.

Claim 10

Dependent Claim 222 words

A metal modified crystalline aluminosilicate characterized by an X-ray diffraction pattern characteristic of zeolite Y, which has been modified by being ion exchanged with or impregnated with a metal so that the metal modified crystalline aluminosilicate contains at least one of the metals selected from the group consisting of rare earth elements, magnesium and calcium which accounts for from 0.2 to 15% by weight in terms of oxide based on the total weight of the metal modified aluminosilicate, wherein said crystalline aluminosilicate has the following characteristics: (A) SiO 2 /Al 2 O 3 molar ratio as determined by a chemical analysis of from 5 to 15; (B) a molar ratio of Al content in the zeolite framework to the total Al of the aluminosilicate of from 0.3 to 0.6; (C) a unit cell dimension of 24.30 Å of larger but less than 24.45 Å; (D) an alkali metal content, in terms of oxide, of 0.02% by weight or more but less than 1% by weight in total; (E) a pore distribution which yields characteristic peaks at around 50 Å and at around 180 Å, with the volume of pores 100 Å or larger but smaller than 600 Å accounting for 10 to 40% of the total pore volume; and (F) an X-ray diffraction pattern thereof which yields characteristic peaks of zeolite Y.

Claim 11

Dependent Claim 222 words

A metal modified crystalline aluminosilicate characterized by an X-ray diffraction pattern characteristic of zeolite Y, which has been modified by being ion exchanged with or impregnated with a metal so that the metal modified crystalline aluminosilicate contains at least one of the metals selected from the group consisting of rare earth elements, magnesium and calcium which accounts for from 0.2 to 15% by weight in terms of oxide based on the total weight of the metal modified aluminosilicate, wherein said crystalline aluminosilicate has the following characteristics: (A) SiO 2 /Al 2 O 3 molar ratio as determined by a chemical analysis of from 5 to 15; (B) a molar ratio of Al content in the zeolite framework to the total Al of the aluminosilicate of from 0.3 to 0.6; (C) a unit cell dimension of 24.30 Å of larger but less than 24.45 Å; (D) an alkali metal content, in terms of oxide, of 0.02% by weight or more but less than 1% by weight in total; (E) a pore distribution which yields characteristic peaks at around 50 Å and at around 180 Å, with the volume of pores 100 Å or larger but smaller than 600 Å accounting for 10 to 40% of the total pore volume; and (F) an X-ray diffraction pattern thereof which yields characteristic peaks of zeolite Y.

Claim 12

Dependent Claim 22 words

The metal modified crystalline aluminosilicate as claimed in claim 9, wherein the rare earth elements are scandium, yttrium, lanthanum, cerium or actinium.

Claim 13

Dependent Claim 47 words

The metal-modified crystalline aluminosilicate as claimed in claim 9, wherein at least one metal selected from the group consisting of rare earth elements, magnesium and calcium accounts for 0.5 to 8.0% by weight, in terms of oxide, based on the total weight of the metal-modified crystalline aluminosilicate.

Claim 14

Dependent Claim 27 words

A catalyst composition for use in a catalytic cracking reaction, which is a mixture comprising the metal-modified crystalline aluminosilicate of claim 9 and an inorganic oxide matrix.

Claim 15

Dependent Claim 42 words

A catalyst composition for use in a catalytic cracking reaction, which is a mixture comprising from 5 to 60% by weight of the metal modified crystalline aluminosilicate of claim 9 and from 40 to 95% by weight of an inorganic oxide matrix.

Claim 16

Dependent Claim 244 words

A process for producing the crystalline aluminosilicate which has the following characteristics: (A) an SiO 2 /Al 2 O 3 molar ratio as determined by a chemical analysis of from 5 to 15; (B) a molar ratio of Al content in the zeolite framework to the total Al of the aluminosilicate of from 0.3 to 0.6; (C) a unit cell dimension of 24.30 Å or larger but less than 24.40 Å; (D) an alkali metal content, in terms of oxide, of 0.02% by weight or more but less than 1% by weight in total; (E) a pore distribution which yields characteristic peaks at around 50 Å and at around 180 Å, with the volume of pores 100 Å or larger but smaller than 600 Å accounting for 10 to 40% of the total pore volume; and (F) an X ray diffraction pattern thereof which yields characteristics peaks of zeolite Y which process comprises calcining a stabilized zeolite Y in the temperature range of from 600° to 1200° C. for 5 to 300 minutes while controlling the decrease in the crystallinity of said stabilized zeolite Y to 20% or less, said stabilized zeolite Y initially having an SiO 2 /Al 2 O 3 molar ratio of from 5 to 15, a unit cell dimension of 24.45 Å or larger but less than 24.70 Å, and an alkali metal content in terms of oxide of 0.02% by weight or more but less than 1% by weight.

Claim 17

Dependent Claim 244 words

A process for producing the crystalline aluminosilicate which has the following characteristics: (A) an SiO 2 /Al 2 O 3 molar ratio as determined by a chemical analysis of from 5 to 15; (B) a molar ratio of Al content in the zeolite framework to the total Al of the aluminosilicate of from 0.3 to 0.6; (C) a unit cell dimension of 24.30 Å or larger but less than 24.40 Å; (D) an alkali metal content, in terms of oxide, of 0.02% by weight or more but less than 1% by weight in total; (E) a pore distribution which yields characteristic peaks at around 50 Å and at around 180 Å, with the volume of pores 100 Å or larger but smaller than 600 Å accounting for 10 to 40% of the total pore volume; and (F) an X ray diffraction pattern thereof which yields characteristics peaks of zeolite Y which process comprises calcining a stabilized zeolite Y in the temperature range of from 600° to 1200° C. for 5 to 300 minutes while controlling the decrease in the crystallinity of said stabilized zeolite Y to 20% or less, said stabilized zeolite Y initially having an SiO 2 /Al 2 O 3 molar ratio of from 5 to 15, a unit cell dimension of 24.45 Å or larger but less than 24.70 Å, and an alkali metal content in terms of oxide of 0.02% by weight or more but less than 1% by weight.

Claim 18

Dependent Claim 32 words

The process for producing the crystalline aluminosilicate as claimed in claim 14, wherein the calcining is conducted at a temperature range of from 600° to 1000° C. for 5 to 100 minutes.

Claim 19

Dependent Claim 33 words

The process for producing the crystalline aluminosilicate as claimed in claim 14, wherein the calcining is conducted while controlling the decrease in the crystallinity of the stabilized zeolite Y to 15% or less.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1996-07-12	1997-01-11	1997-07-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2000-07-12	2001-01-11	2001-07-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2004-07-12	2005-01-11	2005-07-13	$7700.00	Window Closed / Lapsed

Catalyst composition for catalytic cracking of hydrocarbon oil and process for producing the same

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