US4456699A — Catalyst and support, and their methods of prepar…

Claim 1

Independent Claim 154 words

A method for preparing an improved catalyst support from a composite comprising alumina and one or more oxides of phosphorus, which method comprises forming said composite into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å) and heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume, so as to provide a steam-treated support material having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm.

Claim 2

Independent Claim 154 words

A method for preparing an improved catalyst support from a composite comprising alumina and one or more oxides of phosphorus, which method comprises forming said composite into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å) and heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume, so as to provide a steam-treated support material having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm.

Claim 3

Dependent Claim 43 words

The method of claim 1, wherein said oxides of phosphorus are present in said composite in an amount within the range of about 5 wt% to about 20 wt%, calculated as P 2 O 5 and based upon the weight of said composite.

Claim 4

Dependent Claim 24 words

The method of claim 2, wherein said temperature is within the range of about 704° C. (1,300° F.) to about 927° C. (1,700° F.).

Claim 5

Dependent Claim 28 words

The method of claim 2, wherein said steam is employed at a pressure within the range of about 30 kPa (4.4 psia) to about 274 kPa (25 psig).

Claim 6

Dependent Claim 28 words

The method of claim 3, wherein said steam is employed at a pressure within the range of about 30 kPa (4.4 psia) to about 274 kPa (25 psig).

Claim 7

Independent Claim 162 words

A method for preparing a catalytic composition, which method comprises forming a composite comprising alumina and one or more oxides of phosphorus into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å), heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume so as to provide a steam-treated support material, having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm, and subsequently impregnating said steam-treated support material with at least one hydrogenating metal.

Claim 8

Independent Claim 162 words

A method for preparing a catalytic composition, which method comprises forming a composite comprising alumina and one or more oxides of phosphorus into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å), heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume so as to provide a steam-treated support material, having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm, and subsequently impregnating said steam-treated support material with at least one hydrogenating metal.

Claim 9

Dependent Claim 43 words

The method of claim 6, wherein said oxides of phosphorus are present in said composite in an amount within the range of about 5 wt% to about 20 wt%, calculated at P 2 O 5 and based upon the weight of said composite.

Claim 10

Dependent Claim 24 words

The method of claim 7, wherein said temperature is within the range of about 704° C. (1,300° F.) to about 927° C. (1,700° F.).

Claim 11

Dependent Claim 28 words

The method of claim 7, wherein said steam is employed at a pressure within the range of about 30 kPa (4.4 psia) to about 274 kPa (25 psig).

Claim 12

Dependent Claim 38 words

The method of claim 7, wherein said hydrogenating metal is selected from the group consisting of vanadium, metals of Group VIB of the Periodic Table of Elements, and metals of Group VIII of the Periodic Table of Elements.

Claim 13

Dependent Claim 28 words

The method of claim 8, wherein said steam is employed at a pressure within the range of about 30 kPa (4.4 psia) to about 274 kPa (25 psig).

Claim 14

Dependent Claim 47 words

The method of claim 10, wherein said hydrogenating metal is molybdenum and is employed in an amount that will provide molybdenum in said composition within the range of about 0.5 wt% to about 20 wt%, calculated as MoO 3 and based upon the weight of said composition.

Claim 15

Dependent Claim 38 words

The method of claim 11, wherein said hydrogenating metal is selected from the group consisting of vanadium, metals of Group VIB of the Periodic Table of Elements, and metals of Group VIII of the Periodic Table of Elements.

Claim 16

Dependent Claim 47 words

The method of claim 13, wherein said hydrogenating metal is molybdenum and is employed in an amount that will provide molybdenum in said composition within the range of about 0.5 wt% to about 20 wt%, calculated as MoO 3 and based upon the weight of said composition.

Claim 17

Dependent Claim 164 words

A catalyst support which comprises an alumina and one or more oxides of phosphorus, said support having been prepared by the method which comprises forming a composite comprising alumina and one or more oxides of phosphorus into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å), and heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume, so as to provide a steam-treated support material having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm.

Claim 18

Dependent Claim 164 words

A catalyst support which comprises an alumina and one or more oxides of phosphorus, said support having been prepared by the method which comprises forming a composite comprising alumina and one or more oxides of phosphorus into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å), and heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume, so as to provide a steam-treated support material having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm.

Claim 19

Dependent Claim 41 words

The catalyst support of claim 15, wherein said oxides of phosphorus are present in an amount within the range of about 5 wt% to about 20 wt%, calculated as P 2 O 5 and based upon the weight of said support.

Claim 20

Dependent Claim 32 words

The catalyst support of claim 16, wherein said steam of said method is employed at a pressure within the range of about 30 kPa (4.4 psia) to about 274 kPa (25 psig).

Claim 21

Dependent Claim 28 words

The catalyst support of claim 16, wherein said temperature of said method is within the range of about 704° C. (1,300° F.) to about 927° C. (1,700° F.).

Claim 22

Dependent Claim 32 words

The catalyst support of claim 17, wherein said steam of said method is employed at a pressure within the range of about 30 kPa (4.4 psia) to about 274 kPa (25 psig).

Claim 23

Dependent Claim 209 words

A catalyst which comprises a hydrogenating component comprising at least one hydrogenating metal and a large-pore, high-surface area support comprising an alumina and one or more oxides of phosphorus, said at least one hydrogenating metal being present in the elemental form, as the oxide, as the sulfide, or mixtures thereof, said catalyst having been prepared by forming a composite comprising alumina and one or more oxides of phosphorus into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å), heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume so as to provide a steam-treated support material having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm, and subsequently impregnating said steam-treated support material with said at least one hydrogenating metal.

Claim 24

Dependent Claim 209 words

A catalyst which comprises a hydrogenating component comprising at least one hydrogenating metal and a large-pore, high-surface area support comprising an alumina and one or more oxides of phosphorus, said at least one hydrogenating metal being present in the elemental form, as the oxide, as the sulfide, or mixtures thereof, said catalyst having been prepared by forming a composite comprising alumina and one or more oxides of phosphorus into a shaped catalyst support material having a selected shape and at least 0.8 cc/gm of its pore volume in pores having diameters of 0 nm (0 Å) to 120 nm (1,200 Å) and at least 0.1 cc/gm of its pore volume in pores having diameters of 120 nm (1,200 Å) to 5,000 nm (50,000 Å), heating said shaped catalyst support material in the presence of steam at sufficient elevated temperature, steam pressure, and time period to increase the average pore diameter of said shaped catalyst support material in the absence of any appreciable reduction in pore volume so as to provide a steam-treated support material having an average pore diameter of at least 18 nm (180 Å) and a surface area below 200 m 2 /gm, and subsequently impregnating said steam-treated support material with said at least one hydrogenating metal.

Claim 25

Dependent Claim 41 words

The catalyst of claim 20, wherein said at least one hydrogenating metal is selected from the group consisting of vanadium, metals of Group VIB of the Periodic Table of Elements, and metals of Group VIII of the Periodic Table of Elements.

Claim 26

Dependent Claim 24 words

The catalyst of claim 21, wherein said at least one hydrogenating metal is a metal of Group VIB of the Periodic Table of Elements.

Claim 27

Dependent Claim 13 words

The catalyst of claim 22, wherein said metal of Group VIB is molybdenum.

Claim 28

Dependent Claim 74 words

The catalyst of claim 23, wherein said molybdenum is present in an amount that is within the range of about 0.5 wt% to about 20 wt%, calculated as molybdenum trioxide and based upon the total catalyst weight, and said oxides of phosphorus are present in an amount that is within the range of about 5 wt% to about 20 wt%, calculated as P 2 O 5 and based upon the weight of said support.

Claim 29

Dependent Claim 35 words

The catalyst of claim 24, wherein said molybdenum is present in an amount within the range of about 1 wt% to about 5 wt%, calculated as molybdenum trioxide and based upon the total catalyst weight.

Claim 30

Dependent Claim 40 words

The catalyst of claim 25, wherein said oxides of phosphorus are present in an amount within the range of about 6 wt% to about 11 wt%, calculated as P 2 O 5 and based upon the weight of said support.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1987-06-26	1987-12-26	1988-06-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1991-06-26	1991-12-26	1992-06-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1995-06-26	1995-12-26	1996-06-26	$7700.00	Window Closed / Lapsed

Catalyst and support, and their methods of preparation

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag