FI45882B - - Google Patents
Info
- Publication number
- FI45882B FI45882B FI0776/65A FI77665A FI45882B FI 45882 B FI45882 B FI 45882B FI 0776/65 A FI0776/65 A FI 0776/65A FI 77665 A FI77665 A FI 77665A FI 45882 B FI45882 B FI 45882B
- Authority
- FI
- Finland
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
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
-
- 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
- D21C11/0035—Introduction of compounds, e.g. sodium sulfate, into the cycle in order to compensate for the losses of pulping agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Tents Or Canopies (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB13695/64A GB1074111A (en) | 1964-04-02 | 1964-04-02 | Processes useful in the manufacture of bleached pulp |
| GB2259064 | 1964-06-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI45882B true FI45882B (es) | 1972-06-30 |
| FI45882C FI45882C (fi) | 1972-10-10 |
Family
ID=26249936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI650776A FI45882C (fi) | 1964-04-02 | 1965-03-31 | Menetelmä sulfaattisellun keitto- ja valkaisukemikaalien valmistamisek si. |
Country Status (9)
| Country | Link |
|---|---|
| CS (1) | CS153436B2 (es) |
| DE (1) | DE1517152A1 (es) |
| ES (1) | ES311273A1 (es) |
| FI (1) | FI45882C (es) |
| FR (1) | FR1455076A (es) |
| GB (1) | GB1074111A (es) |
| NL (1) | NL143295B (es) |
| NO (1) | NO123326B (es) |
| SE (1) | SE311469B (es) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ185958A (en) * | 1976-12-22 | 1979-11-01 | Hooker Chemicals Plastics Corp | Pulping liquor recyling;comination with sulphur cycle in bleaching plant |
| SE8704041L (sv) * | 1987-10-16 | 1989-04-17 | Sca Development Ab | Saett vid blekning av cellulosamassa |
-
1964
- 1964-04-02 GB GB13695/64A patent/GB1074111A/en not_active Expired
-
1965
- 1965-03-26 SE SE3974/65A patent/SE311469B/xx unknown
- 1965-03-30 DE DE19651517152 patent/DE1517152A1/de not_active Withdrawn
- 1965-03-31 ES ES0311273A patent/ES311273A1/es not_active Expired
- 1965-03-31 FI FI650776A patent/FI45882C/fi active
- 1965-04-01 FR FR11610A patent/FR1455076A/fr not_active Expired
- 1965-04-01 NO NO157502A patent/NO123326B/no unknown
- 1965-04-01 CS CS216565A patent/CS153436B2/cs unknown
- 1965-04-02 NL NL656504240A patent/NL143295B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS153436B2 (es) | 1974-02-25 |
| FR1455076A (fr) | 1966-04-01 |
| FI45882C (fi) | 1972-10-10 |
| ES311273A1 (es) | 1966-02-01 |
| SE311469B (es) | 1969-06-09 |
| GB1074111A (en) | 1967-06-28 |
| NL143295B (nl) | 1974-09-16 |
| NL6504240A (es) | 1965-10-04 |
| NO123326B (es) | 1971-10-25 |
| DE1517152A1 (de) | 1969-04-24 |