FI54942C - Foerfarande foer fibrering eller blekning av vaextaemnen - Google Patents
Foerfarande foer fibrering eller blekning av vaextaemnenInfo
- Publication number
- FI54942C FI54942C FI1694/72A FI169472A FI54942C FI 54942 C FI54942 C FI 54942C FI 1694/72 A FI1694/72 A FI 1694/72A FI 169472 A FI169472 A FI 169472A FI 54942 C FI54942 C FI 54942C
- Authority
- FI
- Finland
- Prior art keywords
- vaextaemnen
- fibrering
- blekning
- eller
- foerfarande foer
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-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
- D21C11/0014—Combination of various pulping processes with one or several recovery systems (cross-recovery)
-
- 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
- D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP46042438A JPS4943481B1 (fi) | 1971-06-14 | 1971-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI54942B FI54942B (fi) | 1978-12-29 |
FI54942C true FI54942C (fi) | 1979-04-10 |
Family
ID=12636059
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI1694/72A FI54942C (fi) | 1971-06-14 | 1972-06-14 | Foerfarande foer fibrering eller blekning av vaextaemnen |
Country Status (5)
Country | Link |
---|---|
US (1) | US4070233A (fi) |
JP (1) | JPS4943481B1 (fi) |
CA (1) | CA958504A (fi) |
FI (1) | FI54942C (fi) |
SE (1) | SE394122B (fi) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU619580B2 (en) * | 1988-08-23 | 1992-01-30 | Sappi Limited | Elimination of bleach effluents |
US6322768B1 (en) | 1998-09-29 | 2001-11-27 | International Paper Company | Recovery of chlorine dioxide from gas streams |
DE10158120A1 (de) * | 2001-11-27 | 2003-06-18 | Ties Karstens | Verfahren zum Abtrennen von Xylose aus xylanreichen Lignocellulosen, insbesondere Holz |
FI115227B (fi) * | 2002-01-23 | 2005-03-31 | Rinheat Oy | Menetelmä mekaanisesti kuidutetun massan valkaisemiseksi |
CA2607827C (en) * | 2005-05-04 | 2013-11-19 | Novozymes North America, Inc. | Chlorine dioxide treatment compositions and processes |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2092945A (en) * | 1934-08-15 | 1937-09-14 | Mathieson Alkali Works Inc | Manufacture of water soluble chlorites |
US2169473A (en) * | 1935-02-08 | 1939-08-15 | Cellulose Res Corp | Method of producing cellulose pulp |
US2805168A (en) * | 1953-05-06 | 1957-09-03 | Agrashell Inc | Chemically modified ligno-cellulosic materials |
US2882965A (en) * | 1955-02-23 | 1959-04-21 | Columbia Cellulose Company Ltd | High viscosity, high percentage alpha cellulose from sulfite pulp |
US3251730A (en) * | 1960-07-14 | 1966-05-17 | Watanabe Sadayoshi | Process for the purification of a pulp by oxidation with oxygen |
US3269095A (en) * | 1962-12-05 | 1966-08-30 | Mo Och Domsjoe Ab | Method of removing chlorine compounds from gases obtained by combustion of waste liquors |
US3366534A (en) * | 1964-08-14 | 1968-01-30 | Hooker Chemical Corp | Complete chemical system for a kraft mill |
US3296064A (en) * | 1965-05-04 | 1967-01-03 | William T Neiman | Method of treating cellulosic pulping waste liquors with magnesium oxide to form a complex prior to burning thereof |
US3632469A (en) * | 1969-06-05 | 1972-01-04 | Ethyl Corp | Process for the manufacture of dissolving grade pulp |
CA947010A (en) * | 1971-02-23 | 1974-05-14 | Erco Envirotech Ltd. | Chlorination of alkali metal carbonates recovered from the production of pulp |
JPS5312943B2 (fi) * | 1972-06-16 | 1978-05-06 |
-
1971
- 1971-06-14 JP JP46042438A patent/JPS4943481B1/ja active Pending
-
1972
- 1972-06-08 SE SE7207579A patent/SE394122B/xx unknown
- 1972-06-14 US US05/262,645 patent/US4070233A/en not_active Expired - Lifetime
- 1972-06-14 CA CA144,691A patent/CA958504A/en not_active Expired
- 1972-06-14 FI FI1694/72A patent/FI54942C/fi active
Also Published As
Publication number | Publication date |
---|---|
SE394122B (sv) | 1977-06-06 |
FI54942B (fi) | 1978-12-29 |
US4070233A (en) | 1978-01-24 |
JPS4943481B1 (fi) | 1974-11-21 |
CA958504A (en) | 1974-12-03 |
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