Hydrometallurgical process for production of supported catalysts
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-023/00
B01J-021/00
B01J-020/00
출원번호
US-0458103
(2003-06-10)
등록번호
US-7291577
(2007-11-06)
발명자
/ 주소
Hajmrle,Karel
Hussain,Syed
Laplante,Paul Albert
출원인 / 주소
Sulzer Metco (Canada) Inc.
대리인 / 주소
Medlen & Carroll, LLP
인용정보
피인용 횟수 :
0인용 특허 :
14
초록▼
A process for the production of a supported catalyst. The process comprises heating a slurry that comprises a catalyst support and at least one active catalytic ingredient precursor. Gas is introduced to the slurry at a sufficient pressure to reduce the at least one active catalytic ingredient precu
A process for the production of a supported catalyst. The process comprises heating a slurry that comprises a catalyst support and at least one active catalytic ingredient precursor. Gas is introduced to the slurry at a sufficient pressure to reduce the at least one active catalytic ingredient precursor and deposit at least one active catalytic ingredient onto a surface of the catalyst support to form the supported catalyst. The supported catalyst has a large active catalytic surface area.
대표청구항▼
What is claimed is: 1. A process for the production of a supported catalyst, the process comprising: heating a slurry comprising a catalyst support and at least one active catalytic ingredient precursor and introducing gas to the slurry at a sufficient pressure to reduce said at least one active ca
What is claimed is: 1. A process for the production of a supported catalyst, the process comprising: heating a slurry comprising a catalyst support and at least one active catalytic ingredient precursor and introducing gas to the slurry at a sufficient pressure to reduce said at least one active catalytic ingredient precursor and deposit at least one active catalytic ingredient onto a surface of the catalyst support to form the supported catalyst, wherein the pressure is from about 120 to about 800 psig and the slurry has a pH of from about 6 to about 8, and wherein the supported catalyst comprises particles having an average particle diameter of 45 μm to 105 μm. 2. The process of claim 1, wherein said at least one active catalytic ingredient is deposited onto external and/or internal surfaces of the catalyst support. 3. The process of claim 1, wherein the catalyst support has a surface area from about 0.20 m2/g to about 1000 m2/g. 4. The process of claim 1, wherein the catalyst support is a porous catalyst support. 5. The process of claim 1, wherein the catalyst support is selected from the group consisting of a ceramic, carbon, fluorinated carbon, graphite, polymers, and combinations thereof. 6. The process of claim 1, wherein the catalyst support is a ceramic selected from the group consisting of alumina, zeolite, silica, magnesia, titania, zirconia, yttria stabilized zirconia, copper coated yttria stabilized zirconia and diatomaceous earth. 7. The process of claim 1, wherein said at least one active catalytic ingredient precursor is selected from the group consisting of a metal precursor, a metal oxide precursor, a metal sulphide precursor and combinations thereof. 8. The process of claim 7, wherein said at least one active catalytic ingredient precursor is selected from the group consisting of nickel ammine sulphate, nickel carbonate, copper ammine sulphate, cobalt ammine sulphate, tin hydroxide and combinations thereof. 9. The process of claim 1, wherein said at least one active catalytic ingredient is selected from the group consisting of a metal, a metal oxide, a metal suiphide and combinations thereof. 10. The process of claim 1, wherein said at least one active catalytic ingredient is a substantially pure metal. 11. The process of claim 1, wherein said at least one active catalytic ingredient is selected from the group consisting of nickel, cobalt, a precious metal, antimony, arsenic, lead, tin, oxides thereof, suiphides thereof and combinations thereof. 12. The process of claim 1, wherein a layer of said at least one active catalytic ingredient is deposited onto the catalyst support, wherein the layer has a thickness of at most about 1 μm. 13. The process of claim 1, wherein the gas is selected from the group consisting of hydrogen, hydrogen sulphide, carbon dioxide, sulphur dioxide, carbon monoxide and combinations thereof. 14. The process of claim 1, wherein the concentration of said at least one active catalytic ingredient precursor is such that a concentration of said at least one active catalytic ingredient from about 0.001 g/l to about 70 g/l is provided. 15. The process of claim 14, wherein said at least one active catalytic ingredient concentration is from about 25 g/l to about 65 g/l, wherein the active catalytic ingredient is a non-precious metal. 16. The process of claim 14, wherein said at least one active catalytic ingredient concentration is from about 0.001 g/l to about 1 g/l, wherein the active catalytic ingredient is a precious metal. 17. The process of claim 1, wherein the slurry is formed by mixing the catalyst support and a solution of said at least one active catalytic ingredient. 18. The process of claim 1, wherein the step of heating the slurry and introducing the gas is either done simultaneously or the slurry is heated to a desired temperature, followed by the introduction of the gas. 19. The process of claim 1, wherein the slurry is heated to a temperature up to about 400째 C. 20. The process of claim 19, wherein the slurry is hcated to a temperature of from about 120째 C. to about 250째 C. 21. The process of claim 1, wherein said at least one active catalytic ingredient is present up to about 70% by weight based on the total weight of the supported catalyst. 22. The process of claim 1, wherein the supported catalyst comprises particles having an average particle diameter up to about 400 μm. 23. The process of claim 1, further comprising washing and drying the supported catalyst. 24. The process of claim 1, whereby, after forming the supported catalyst, the process is repeated, wherein the supported catalyst is the catalyst support. 25. The process of claim 1, wherein the slurry further comprises a solution additive for facilitating the deposition of said at least one active catalytic ingredient. 26. The process of claim 25, wherein the solution additive is selected from the group consisting of ammonium polyacrylate, gum arabic, dextrin, gelatin, dextrose, anthraquinone, oleic fatty acids, stearic fatty acids, and combinations thereof. 27. The process of claim 1, wherein reaction time for said introducing is from 5 minutes to 20 minutes. 28. A process for the production of a supported catalyst having an average particle diameter up to about 400 μm, the process comprising: heating an aqueous slurry of a porous catalyst support having a surface area between about 0.20 m2/g to about 1000 m2/g and at least one active catalytic ingredient precursor and introducing gas to the slurry at a sufficient pressure to reduce said at least one active catalytic ingredient precursor and deposit at least one active catalytic ingredient onto a surface of the catalyst support to form the supported catalyst, wherein the pressure is from about 120 to about 800 psig and the slurry has a pH of from about 6 to about 8, and wherein the supported catalyst comprises particles having an average particle diameter of 45 μm to 105 μm. 29. The process of claim 28, wherein said at least one active catalytic ingredient is deposited onto external and/or internal surfaces of the catalyst support. 30. The process of claim 28, wherein the catalyst support is selected from the group consisting of a ceramic, carbon, fluorinated carbon, graphite, polymers, and combinations thereof. 31. The process of claim 28, wherein the catalyst support is a ceramic selected from the group consisting of alumina, zeolite, silica, magnesia, titania, zirconia, yttria stabilized zirconia, copper coated yttria stabilized zirconia and diatomaceous earth. 32. The process of claim 31, wherein said at least one active catalytic ingredient is selected from the group consisting of nickel, cobalt, a precious metal, antimony, arsenic, lead, tin, oxides thereof suiphides thereof, and combinations thereof. 33. The process of claim 32, wherein the concentration of said at least one active catalytic ingredient precursor is such that a concentration of said at least one active catalytic ingredient from about 25 g/l to about 65 g/l is provided. 34. The process of claim 31, wherein said at least one active catalytic ingredient is selected from the group consisting of substantially pure nickel, nickel oxide, nickel suiphide, and combinations thereof. 35. The process of claim 28, wherein the gas is selected from the group consisting of hydrogen, hydrogen suiphide, carbon dioxide, sulphur dioxide, carbon monoxide and combinations thereof. 36. The process of claim 35, wherein the gas is hydrogen. 37. The process of claim 28, wherein the slurry is heated to a temperature of from about 120째 C. to about 250째 C. 38. The process of claim 28, wherein said at least one active catalytic ingredient is present up to about 70% by weight based on the total weight of the supported catalyst. 39. The process of claim 28, further comprising washing and drying the supported catalyst. 40. The process of claim 28, wherein reaction time for said introducing is from 5 minutes to 20 minutes.
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이 특허에 인용된 특허 (14)
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