SE8701344L - PROCEDURE FOR PRODUCING CELLULOSA - Google Patents
PROCEDURE FOR PRODUCING CELLULOSAInfo
- Publication number
- SE8701344L SE8701344L SE8701344A SE8701344A SE8701344L SE 8701344 L SE8701344 L SE 8701344L SE 8701344 A SE8701344 A SE 8701344A SE 8701344 A SE8701344 A SE 8701344A SE 8701344 L SE8701344 L SE 8701344L
- Authority
- SE
- Sweden
- Prior art keywords
- producing
- determined
- cellulosa
- procedure
- parameters
- 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
Landscapes
- Paper (AREA)
Abstract
It is the aim and object of the invention to provide a process for producing pulp, which allows the process of digesting wood to be carried out in a controlled manner, so that a pulp of uniform quality is obtained. This object is achieved in such a way that, in the process for producing pulp by the acid bisulphite process, the parameters are determined, with which the bisulphite process is the standard, the set values of process-relevant variables are determined from these parameters, these process-relevant variables are repeatedly determined in the course of the process, a set/actual value comparison is carried out and, in the case of agreement, the process is stopped.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD28849486 | 1986-03-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8701344D0 SE8701344D0 (en) | 1987-03-31 |
SE8701344L true SE8701344L (en) | 1987-10-01 |
Family
ID=5577664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8701344A SE8701344L (en) | 1986-03-31 | 1987-03-31 | PROCEDURE FOR PRODUCING CELLULOSA |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3641785A1 (en) |
SE (1) | SE8701344L (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59005944D1 (en) * | 1990-03-05 | 1994-07-07 | Siemens Ag | Process for the production of pulp in a continuous cooker. |
DE9017325U1 (en) * | 1990-12-21 | 1992-01-02 | Siemens AG, 8000 München | Process control system for controlling pulp production |
ATE189715T1 (en) * | 1995-10-09 | 2000-02-15 | Siemens Ag | METHOD FOR DETERMINING THE END POINT OF PULP COOKING AND ARRANGEMENT FOR CONTROLLING THE COOKING TIME DURING PULP COOKING IN A REACTOR |
DE10064131C2 (en) * | 2000-12-22 | 2003-03-27 | Sca Hygiene Prod Gmbh | Fully bleached sulfite pulp, process for its manufacture and products made from it |
DE102007036383A1 (en) * | 2007-07-31 | 2009-02-05 | Voith Patent Gmbh | Controlling the duration of dissolving sulfite substances for high-yield fibers involves terminating solubilizing on reaching predefined correlation between quantity of raw material to be solubilized and sulfite content of sulfite solution |
-
1986
- 1986-12-06 DE DE19863641785 patent/DE3641785A1/en not_active Withdrawn
-
1987
- 1987-03-31 SE SE8701344A patent/SE8701344L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE8701344D0 (en) | 1987-03-31 |
DE3641785A1 (en) | 1987-10-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8701344-7 Effective date: 19900829 |