FI54350C - Foerfarande foer oxidering av svartlut - Google Patents
Foerfarande foer oxidering av svartlutInfo
- Publication number
- FI54350C FI54350C FI630/71A FI63071A FI54350C FI 54350 C FI54350 C FI 54350C FI 630/71 A FI630/71 A FI 630/71A FI 63071 A FI63071 A FI 63071A FI 54350 C FI54350 C FI 54350C
- Authority
- FI
- Finland
- Prior art keywords
- svartlut
- oxidering
- foerfarande foer
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/03—Papermaking liquor
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4125370A | 1970-05-28 | 1970-05-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI54350B FI54350B (fi) | 1978-07-31 |
FI54350C true FI54350C (fi) | 1978-11-10 |
Family
ID=21915575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI630/71A FI54350C (fi) | 1970-05-28 | 1971-03-03 | Foerfarande foer oxidering av svartlut |
Country Status (4)
Country | Link |
---|---|
US (1) | US3709975A (fi) |
JP (1) | JPS5025043B1 (fi) |
CA (1) | CA950157A (fi) |
FI (1) | FI54350C (fi) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3873414A (en) * | 1971-10-25 | 1975-03-25 | Air Liquide | Process for the treatment of black liquor of cellulosic pulp wherein oxidation is performed both before and after black liquor concentration |
US4058433A (en) * | 1975-03-06 | 1977-11-15 | Gulf States Paper Corporation | Conversion of sulfur in blank liquor to eliminate odorous emissions and facilitate the collection of sulfate soaps |
US4239589A (en) * | 1978-10-02 | 1980-12-16 | Air Products And Chemicals, Inc. | Process for oxidation of black liquor |
DE4038420A1 (de) * | 1990-12-01 | 1992-06-04 | Linde Ag | Verfahren zum zelluloseaufschluss |
-
1970
- 1970-05-28 US US00041253A patent/US3709975A/en not_active Expired - Lifetime
-
1971
- 1971-03-03 CA CA106,770,A patent/CA950157A/en not_active Expired
- 1971-03-03 FI FI630/71A patent/FI54350C/fi active
- 1971-03-10 JP JP46012536A patent/JPS5025043B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FI54350B (fi) | 1978-07-31 |
US3709975A (en) | 1973-01-09 |
JPS5025043B1 (fi) | 1975-08-20 |
CA950157A (en) | 1974-07-02 |
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