Use of high silicon Cr Ni steel in H.sub.2 SO.sub.4 manufacture
US4543244A · kind A · utility
8Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1983 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Jun 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/0286
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Apparatus and process for the manufacture of sulphuric acid by the contact process of the type comprising at least one gas-concentrated sulphuric acid contacting unit and a sulphuric acid heat exchanger characterized in that the contacting unit and/or heat exchanger is formed of high silicon content austenitic steel. The steel is also of use in sulphuric acid concentrators. Reduced corrosion rates are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.