FI914252A - Preparation of cellulose pulp - Google Patents
Preparation of cellulose pulp Download PDFInfo
- Publication number
- FI914252A FI914252A FI914252A FI914252A FI914252A FI 914252 A FI914252 A FI 914252A FI 914252 A FI914252 A FI 914252A FI 914252 A FI914252 A FI 914252A FI 914252 A FI914252 A FI 914252A
- Authority
- FI
- Finland
- Prior art keywords
- sulphur content
- different
- pulp
- preparation
- white
- Prior art date
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- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
This invention concerns an improvement in the various processes making up the production of pulp, both regarding the processes themselves and the arrangements used in them. This is achieved in that two different white liquors with different sulphur content are used in the production of the pulp. The chemicals are jointly recovered and then used to prepare white liquors with different sulphur content. According to the invention, for example, sulphur-rich white liquor is used at the start of the cooking and white liquor with low sulphur content is used at a later stage of the cooking.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI914252A FI96782B (en) | 1991-09-09 | 1991-09-09 | Production of cellulose pulp |
FI915482A FI92725C (en) | 1991-09-09 | 1991-11-21 | Process for preparing boiling liquid |
FI916097A FI916097A (en) | 1991-09-09 | 1991-12-23 | FOERFARANDE FOER AOTERVINNING AV KEMIKALIER |
US07/915,235 US5340440A (en) | 1991-09-09 | 1992-07-20 | Method for recovering chemicals using recovery boiler having at least 2 different melt sections |
CA002077216A CA2077216C (en) | 1991-09-09 | 1992-08-31 | Manufacture of cellulose |
FR9210648A FR2681081A1 (en) | 1991-09-09 | 1992-09-07 | Process and device for the recovery of chemical products in the manufacture of cellulose |
SE9202561A SE512614C2 (en) | 1991-09-09 | 1992-09-07 | Recycling of chemicals with different sulfur content |
JP4239554A JPH07122226B2 (en) | 1991-09-09 | 1992-09-08 | Cellulose production |
PT100847A PT100847A (en) | 1991-09-09 | 1992-09-08 | CELLULOSE MANUFACTURING PROCESS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI914252A FI96782B (en) | 1991-09-09 | 1991-09-09 | Production of cellulose pulp |
FI914252 | 1991-11-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI914252A0 FI914252A0 (en) | 1991-09-09 |
FI914252A true FI914252A (en) | 1993-03-10 |
FI96782B FI96782B (en) | 1996-05-15 |
Family
ID=8533094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI914252A FI96782B (en) | 1991-09-09 | 1991-09-09 | Production of cellulose pulp |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI96782B (en) |
-
1991
- 1991-09-09 FI FI914252A patent/FI96782B/en active
Also Published As
Publication number | Publication date |
---|---|
FI914252A0 (en) | 1991-09-09 |
FI96782B (en) | 1996-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
GB | Transfer or assigment of application |
Owner name: AHLSTROM MACHINERY OY |