Process for preparing catalyst with copper or zinc and with chromium, molybdenum, tungsten, or vanadium, and product thereof
First Claim
1. A process for preparing a catalyst comprising the oxides of copper or zinc and at least one additional metal which comprises the steps of(A) simultaneously and separately adding to a first vessel, (1) a first aqueous solution comprising a copper or zinc salt;
- and (2) a second aqueous solution comprising a soluble base, provided that either (i) the first or second solutions also contains a soluble salt of at least one second metal selected from chromium, molybdenum, tungsten or vanadium, or (ii) if the first or second solutions do not contain a soluble salt of at least one of the second metals, (3) a third aqueous solution comprising a soluble salt of at least one of said second metal is added simultaneously to the first vessel, whereby an aqueous slurry of an insoluble solid is formed in the first vessel;
(B) advancing at least a portion of the aqueous slurry from the first vessel to a second vessel;
(C) recovering the solids from the aqueous slurry in the second vessel; and
(D) calcining the recovered solids wherein the average particle diameter of the calcined solids is from about 6 to about 20 microns;
the particle surface area is from about 20 to about 70 m2 /g;
the pore volume of pores having diameters in the range up to 120 Å
is from about 5 to about 45%, in the range of about 120 to about 350 Å
is from about 40 to about 80%, and in the range of about 350 to about 1000 Å
is from about 10 to about 40% of the total pore volume.
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Accused Products
Abstract
This hydrogenation catalyst comprises a major amount of the oxides of a first metal selected from copper or zinc, a second metal selected from chromium, molybdenum, tungsten and vanadium, and optionally, a minor amount of the oxide of a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof provided that the promotor metal is not zinc if the first metal is zinc. The average particle diameter of the powder is from about 6 to about 20 microns; and the particle surface area is from about 20 to about 70 m2 /g. The process for preparing this catalyst comprises the steps of
(A) simultaneously and adding to a first vessel, (1) a first aqueous solution comprising a copper or zinc salt; (2) a second aqueous solution comprising a soluble base, provided that either the copper solution or the soluble base solution also contains a soluble salt of at least one second metal; or (3) a third aqueous solution comprising a soluble salt of at least one seocnd metal is added simultaneously to the first vessel whereby an aqueous slurry of insoluble solid is formed in the first vessel, provided further that the second metal is chromium, molybdenum, tungsten, or vanadium;
(B) advancing at least a portion of the aqueous slurry from the first vessel to a second vessel;
(C) recovering the solids from the aqueous slurry in the second vessel; and
(D) calcining the recovered solids.
81 Citations
32 Claims
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1. A process for preparing a catalyst comprising the oxides of copper or zinc and at least one additional metal which comprises the steps of
(A) simultaneously and separately adding to a first vessel, (1) a first aqueous solution comprising a copper or zinc salt; - and (2) a second aqueous solution comprising a soluble base, provided that either (i) the first or second solutions also contains a soluble salt of at least one second metal selected from chromium, molybdenum, tungsten or vanadium, or (ii) if the first or second solutions do not contain a soluble salt of at least one of the second metals, (3) a third aqueous solution comprising a soluble salt of at least one of said second metal is added simultaneously to the first vessel, whereby an aqueous slurry of an insoluble solid is formed in the first vessel;
(B) advancing at least a portion of the aqueous slurry from the first vessel to a second vessel; (C) recovering the solids from the aqueous slurry in the second vessel; and (D) calcining the recovered solids wherein the average particle diameter of the calcined solids is from about 6 to about 20 microns;
the particle surface area is from about 20 to about 70 m2 /g;
the pore volume of pores having diameters in the range up to 120 Å
is from about 5 to about 45%, in the range of about 120 to about 350 Å
is from about 40 to about 80%, and in the range of about 350 to about 1000 Å
is from about 10 to about 40% of the total pore volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 31)
- and (2) a second aqueous solution comprising a soluble base, provided that either (i) the first or second solutions also contains a soluble salt of at least one second metal selected from chromium, molybdenum, tungsten or vanadium, or (ii) if the first or second solutions do not contain a soluble salt of at least one of the second metals, (3) a third aqueous solution comprising a soluble salt of at least one of said second metal is added simultaneously to the first vessel, whereby an aqueous slurry of an insoluble solid is formed in the first vessel;
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9. A process for preparing a catalyst comprising the oxides of copper and chromium which comprises the steps of
(A) simultaneously and continuously adding to a first vessel: - water;
a first aqueous solution comprising soluble salts of copper, chromium, and a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof; and
a second aqueous solution comprising a soluble base, to form an aqueous slurry of an insoluble solid in the first vessel;(B) continuously advancing at least a portion of the aqueous slurry from the first vessel to the second vessel; (C) recovering at least some of the solid from the slurry in the second vessel; and (D) calcining the recovered solid wherein the average particle diameter of the calcined solid is from about 6 to about 20 microns;
the particle surface area is from about 20 to about 70 m2 /g;
the pore volume of pores having diameters in the range up to 120 Å
is from about 5 to about 45%, in the range of about 120 to about 350 Å
is from about 40 to about 80%, and in the range of about 350 to about 1000 Å
is from about 10 to about 40% of the total pore volume. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- water;
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16. A process for preparing a catalyst comprising the oxides of copper, chromium and manganese which comprises the steps of
(A) simultaneously and continuously adding a first aqueous solution comprising water-soluble salts of copper, chromium and manganese to a first vessel while separately and continuously adding water and a second aqueous solution comprising a soluble base to form an aqueous slurry of insoluble solids in the first vessel; -
(B) continuously advancing at least a portion of the aqueous slurry from the first vessel to a second vessel; (C) continuously recovering at least some of the solids from the slurry in the second vessel; and (D) calcining the solids recovered in step (C) wherein the average particle diameter of the calcined solids is from about 6 to about 20 microns;
the particle surface area is from about 20 to about 70 m2 /g;
the pore volume of pores having diameters in the range up to 120 Å
is from about 5 to about 45%, in the range of about 120 to about 350 Å
is from about 40 to about 80%, and in the range of about 350 to about 1000 Å
is from about 10 to 40% of the total pore volume. - View Dependent Claims (17, 18, 19, 32)
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20. A catalyst in powdered form comprising a major amount of the oxides of a first metal selected from the group of copper or zinc and a second metal selected from chromium, molybdenum, tungsten and vanadium, and, optionally, a minor amount of the oxide of a promoter metal selected from the group consisting of manganese, barium, zinc, nickel, cobalt, cadmium, iron and any combination thereof, provided that promoter metal is not zinc if the first metal is zinc, and wherein the average particle diameter of the powder is from about 6 to about 20 microns;
- the particle surface area is from about 20 to about 70 m2 /g;
the pore volume of pores having diameters in the range up to 120 Å
is from about 5 to about 45%, in the range of about 120 to about 350 Å
is from about 40 to about 80%, and in the range of about 350 to about 1000 Å
is from about 10 to about 40% of the total pore volume. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
- the particle surface area is from about 20 to about 70 m2 /g;
Specification