Method for producing a parallel gas flow type catalyst for oxidizing sulfurous acid gas
US4973570A · kind A · utility
4Cited by
5References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 31, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | Mar 31, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2231/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a method for producing a catalyst for oxidizing sulfurous acid gas which uses vanadium pentaoxide as a main catalyst, potassium salts as subsidiary catalysts and diatomaceous earth as a carrier; disclosed is a method for producing a parallel gas flow type catalyst for oxidizing sulfurous acid gas, characterized in that after an ingredient mixture of a solution containing vanadium pentaoxide and potassium salts, diatom earth, water and a binder containing sodium polyacrylate is knead, said ingredient mixture is extrusion molded into a shape in which gas passage holes have a honeycomb or grid structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.