Способ приготовления варочного щелока для производства сульфатной целлюлозы
Patents
Language: |
Русский |
Type: |
Certificate of authorship |
Number |
SU 672263 A1 |
Request number: |
2550664/29-12 |
Request date: |
Dec 6, 1977 |
patent.field.start_date: |
|
Registration date: |
Jul 5, 1979 |
patent.field.request_publication_date: |
|
Authors |
Кундо Н.Н.
,
Лещинскайте Г.И.
,
Малышева Л.Н.
,
Бобров А.И.
|
Affiliations |
1 |
Boreskov Institute of Catalysis SB RAS
|
2 |
Open Joint-Stock Company Central Scientific Research Institute of Paper
|
|
The green liquor is divided into two streams, one stream is treated for removal of elementary S, and the streams are then mixed and causticized. The process is simplified by treating the one stream with oxygen in the presence of cobalt phthalocyaninetetrasulfonate [28802-06-4] or nickel ethylenediamine bis(sulfosalicylaldehyde) [71360-91-3] at pH 8-10.