Invention Grant
- Patent Title: Process for preparing catalyst with copper or zinc and with chromium, molybdenum, tungsten, or vanadium, and product thereof
- Patent Title (中): 用铜或锌和铬,钼,钨或钒制备催化剂的方法及其制品
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Application No.: US703923Application Date: 1991-05-22
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Publication No.: US5134108APublication Date: 1992-07-28
- Inventor: Deepak S. Thakur , Eugene Palka , Thomas J. Sullivan , Eugene Nebesh , Brian D. Roberts
- Applicant: Deepak S. Thakur , Eugene Palka , Thomas J. Sullivan , Eugene Nebesh , Brian D. Roberts
- Applicant Address: NJ Edison
- Assignee: Engelhard Corporation
- Current Assignee: Engelhard Corporation
- Current Assignee Address: NJ Edison
- Main IPC: B01J23/847
- IPC: B01J23/847 ; B01J23/85 ; B01J23/86 ; B01J23/889 ; B01J35/10 ; B01J37/03 ; C07C29/141 ; C07C29/145 ; C07C29/149 ; C07C51/36
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 m.sup.2 /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.
Public/Granted literature
- US5671634A Measuring adhesion of cylinder bore coatings Public/Granted day:1997-09-30
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