Title:
PRODUCTION OF PLATE CATALYST AND PROCESSING SOLUTION OF METAL SUBSTRATE FOR THE CATALYST
Document Type and Number:
Japanese Patent JP3432540
Kind Code:
B2
Abstract:
PURPOSE: To prevent the deterioration of the catalyst resulting from the corrosion of the substrate by previously applying a processing soln. consisting of an org, high polymer to be insolubilized by the heat, colloidal silica and fine- grain titania on the metal substrate, heating and drying the soln. to polycondense and insolubilize the soln., applying a catalytic component thereon, drying and calcining the catalystic component.
CONSTITUTION: A processing soln. contg. 0.5-5wt.% of a water-soluble polymer such as PVA and vinyl acetate alcohol, 0.5-5wt.% of colloidal silica and 20-70wt.% of fine-grain titania free of a sulfate radical in a tank is applied onto the surface of a metal substrate, then heated in an insolubilizing furnace 6 and dried to insolubilize the coating layer. A catalytic component 7 contg. at least one among V, Mo and W in addition to Ti is pressed and stuck to the insolubilized coating layer by a coating roller 8, dried and fired. Consequently, the deterioration of the catalyst using the metal substrate, especially a decrease in the SO2 oxidation rate due to the corrosion of the substrate is prevented.
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Inventors:
Taira Kato
Application Number:
JP3883993A
Publication Date:
August 04, 2003
Filing Date:
February 26, 1993
Export Citation:
Assignee:
Babcock Hitachi Ltd.
International Classes:
B01D53/86; B01J37/02; B01D53/94; (IPC1-7): B01J37/02; B01D53/86; B01D53/94
Domestic Patent References:
| JP558875A | ||||
| JP365246A | ||||
| JP4265159A | ||||
| JP47043A | ||||
| JP59335A |
Attorney, Agent or Firm:
Takenaga Kawakita