RU94027073A - Method of preparing bisulfite magnesium base cooking liquor for cellulose production - Google Patents
Method of preparing bisulfite magnesium base cooking liquor for cellulose productionInfo
- Publication number
- RU94027073A RU94027073A RU94027073/12A RU94027073A RU94027073A RU 94027073 A RU94027073 A RU 94027073A RU 94027073/12 A RU94027073/12 A RU 94027073/12A RU 94027073 A RU94027073 A RU 94027073A RU 94027073 A RU94027073 A RU 94027073A
- Authority
- RU
- Russia
- Prior art keywords
- brucite
- solution
- magnesium base
- lump
- raw material
- Prior art date
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
- Treating Waste Gases (AREA)
Abstract
FIELD: cellulose production. SUBSTANCE: in a method including countercurrent interaction of sulfur trioxide with magnesium raw material - brucite in aqueous medium and separation of exhausted gas from solution, as magnesium raw material, lump brucite 50-600-mm fractions are used, interaction is started at pH 1.5-2.5 and conducted until bound sulfur content is achieved 40-45% and, after gas separation, solution is additionally treated with lump brucite to pH 3.0-5.0 and bound sulfur dioxide content 47-55%. EFFECT: reduced sulfur loss with sludge; reduced erosion wear of equipment and risk of clogging absorption space. 1 tbl
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94027073/12A RU2054852C1 (en) | 1994-07-20 | 1994-07-20 | METHOD FOR PRODUCING MAGNESIUM BISULPHITE COOKING SOLUTION FOR PRODUCING CELLULOSE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94027073/12A RU2054852C1 (en) | 1994-07-20 | 1994-07-20 | METHOD FOR PRODUCING MAGNESIUM BISULPHITE COOKING SOLUTION FOR PRODUCING CELLULOSE |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2054852C1 RU2054852C1 (en) | 1996-02-20 |
RU94027073A true RU94027073A (en) | 1997-05-27 |
Family
ID=48229823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94027073/12A RU2054852C1 (en) | 1994-07-20 | 1994-07-20 | METHOD FOR PRODUCING MAGNESIUM BISULPHITE COOKING SOLUTION FOR PRODUCING CELLULOSE |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2054852C1 (en) |
-
1994
- 1994-07-20 RU RU94027073/12A patent/RU2054852C1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2054852C1 (en) | 1996-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20070721 |