SE7612085L - Forfarande for reglering av grensviskositeten hos sulfitmassa - Google Patents
Forfarande for reglering av grensviskositeten hos sulfitmassaInfo
- Publication number
- SE7612085L SE7612085L SE7612085A SE7612085A SE7612085L SE 7612085 L SE7612085 L SE 7612085L SE 7612085 A SE7612085 A SE 7612085A SE 7612085 A SE7612085 A SE 7612085A SE 7612085 L SE7612085 L SE 7612085L
- Authority
- SE
- Sweden
- Prior art keywords
- digestion
- wood
- intrinsic viscosity
- combined
- regulating
- 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
- D21C3/22—Other features of pulping processes
- D21C3/228—Automation of the pulping processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/18—Sulfur containing
- Y10T436/186—Sulfur dioxide
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/628,328 US4086129A (en) | 1975-11-03 | 1975-11-03 | Process for controlling the intrinsic viscosity of sulfite pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7612085L true SE7612085L (sv) | 1977-05-04 |
SE433673B SE433673B (sv) | 1984-06-04 |
Family
ID=24518428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7612085A SE433673B (sv) | 1975-11-03 | 1976-11-01 | Forfarande for preparering av sulfitmassa med reglerad grensviskositet |
Country Status (5)
Country | Link |
---|---|
US (1) | US4086129A (sv) |
JP (1) | JPS5281104A (sv) |
CA (1) | CA1080910A (sv) |
DE (1) | DE2648896A1 (sv) |
SE (1) | SE433673B (sv) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4718979A (en) * | 1983-10-18 | 1988-01-12 | Oy Advanced Forest Automation Ab | Method for rapid determination of the contents of lignin, monosaccharides and organic acids in the process solutions of sulfite pulping |
FI73014C (sv) * | 1984-06-20 | 1987-08-10 | Advanced Forest Automation Ab | Förfarande för styrning av sulfitkokningar och hydrolytiska processer medelst en snabb furfuralanalysator. |
ATE189715T1 (de) * | 1995-10-09 | 2000-02-15 | Siemens Ag | Verfahren zur bestimmung des endpunktes der zellstoffkochung und anordnung zum steuern der kochzeit bei der zellstoffkochung in einem reaktor |
SE516090C2 (sv) * | 2000-05-31 | 2001-11-19 | Kvaerner Pulping Tech | Förfarande för reglering av en process för tillverkning av pappersmassa genom optisk mätning av mängden hexenuronsyra |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2615339A (en) * | 1947-11-21 | 1952-10-28 | Holge Sigbjorn Paul Ebbinghaus | Apparatus for sampling pulp |
GB747108A (en) * | 1953-10-01 | 1956-03-28 | Courtaulds Ltd | Improvements in and relating to the production of wood pulp |
US3555204A (en) * | 1968-01-12 | 1971-01-12 | Ibm | Electronic sweep magnetic scanning transducer |
US3748044A (en) * | 1969-09-02 | 1973-07-24 | Abbott Lab | Digital chemical analysis apparatus |
US3941649A (en) * | 1972-07-14 | 1976-03-02 | Mo Och Domsjo Aktiebolag | Process for obtaining a predetermined Kappa number in sulfate pulping |
US3837217A (en) * | 1972-10-19 | 1974-09-24 | Exxon Research Engineering Co | Measurement of polymer molecular weight distribution |
-
1975
- 1975-11-03 US US05/628,328 patent/US4086129A/en not_active Expired - Lifetime
-
1976
- 1976-10-27 CA CA264,279A patent/CA1080910A/en not_active Expired
- 1976-10-28 DE DE19762648896 patent/DE2648896A1/de not_active Withdrawn
- 1976-11-01 SE SE7612085A patent/SE433673B/sv not_active IP Right Cessation
- 1976-11-04 JP JP51131788A patent/JPS5281104A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
SE433673B (sv) | 1984-06-04 |
JPS5327361B2 (sv) | 1978-08-08 |
CA1080910A (en) | 1980-07-08 |
US4086129A (en) | 1978-04-25 |
JPS5281104A (en) | 1977-07-07 |
DE2648896A1 (de) | 1977-05-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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