Способ переработки серной кислоты
Patents
| Language: |
Русский |
| Type: |
Certificate of authorship |
| Number |
SU 1318520 A1 |
| Request number: |
3889636/31-26 |
| Request date: |
Apr 26, 1985 |
| patent.field.start_date: |
|
| Registration date: |
Jun 23, 1987 |
| patent.field.request_publication_date: |
|
| Authors |
Новопашина В.М.
,
Кундо Н.Н.
,
Добрынкин Н.М.
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
|
The title method comprises reducing H2SO4 to S-contg. gas in the presence of a catalyst at an elevated temp. To simplify the process and ensure a high degree of redn. to H2S, the starting acid is reduced on an Al-Co-Mo catalyst at 350-700° using H-contg. gas as a reducing agent. The redn. is performed with a 4-5:1 vol. ratio of reducing agent to H2SO4 and the contact time is 0.3-0.5 s.