FI67105C - Foerfarande foer framstaellning av kokvaetska erforderilig i neutralsulfitkok med antrakinonoekning - Google Patents
Foerfarande foer framstaellning av kokvaetska erforderilig i neutralsulfitkok med antrakinonoekning Download PDFInfo
- Publication number
- FI67105C FI67105C FI803574A FI803574A FI67105C FI 67105 C FI67105 C FI 67105C FI 803574 A FI803574 A FI 803574A FI 803574 A FI803574 A FI 803574A FI 67105 C FI67105 C FI 67105C
- Authority
- FI
- Finland
- Prior art keywords
- cooking
- solution
- naoh
- sodium
- stripping
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite lye
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI803574A FI67105C (fi) | 1980-11-14 | 1980-11-14 | Foerfarande foer framstaellning av kokvaetska erforderilig i neutralsulfitkok med antrakinonoekning |
DE19813142787 DE3142787A1 (de) | 1980-11-14 | 1981-10-28 | Verfahren fuer die herstellung der beim neutralsulfitkochen mit anthrachinonzusatz erforderlichen kochloesung |
CA000389103A CA1194656A (en) | 1980-11-14 | 1981-10-30 | Process for the preparation of the digesting liquor required in a neutral sulfite cooking with an addition of anthraquinone |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI803574 | 1980-11-14 | ||
FI803574A FI67105C (fi) | 1980-11-14 | 1980-11-14 | Foerfarande foer framstaellning av kokvaetska erforderilig i neutralsulfitkok med antrakinonoekning |
Publications (3)
Publication Number | Publication Date |
---|---|
FI803574L FI803574L (fi) | 1982-05-15 |
FI67105B FI67105B (fi) | 1984-09-28 |
FI67105C true FI67105C (fi) | 1985-02-20 |
Family
ID=8513923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI803574A FI67105C (fi) | 1980-11-14 | 1980-11-14 | Foerfarande foer framstaellning av kokvaetska erforderilig i neutralsulfitkok med antrakinonoekning |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA1194656A (de) |
DE (1) | DE3142787A1 (de) |
FI (1) | FI67105C (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2091529C1 (ru) * | 1995-11-21 | 1997-09-27 | Грудинин Владимир Павлович | Способ приготовления варочного раствора для получения волокнистого полуфабриката |
DE102007022751A1 (de) * | 2007-05-11 | 2008-11-13 | Voith Patent Gmbh | Ablauge eines Sulfitaufschlusses |
-
1980
- 1980-11-14 FI FI803574A patent/FI67105C/fi not_active IP Right Cessation
-
1981
- 1981-10-28 DE DE19813142787 patent/DE3142787A1/de not_active Ceased
- 1981-10-30 CA CA000389103A patent/CA1194656A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3142787A1 (de) | 1982-07-15 |
FI803574L (fi) | 1982-05-15 |
CA1194656A (en) | 1985-10-08 |
FI67105B (fi) | 1984-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: YHTYNEET PAPERITEHTAAT OY |