SE375565C - SET TO BLAKE CHEMICAL MASS WITH ACID IN A FIRST STEP AND PERETTIC ACID IN A SECOND STEP - Google Patents
SET TO BLAKE CHEMICAL MASS WITH ACID IN A FIRST STEP AND PERETTIC ACID IN A SECOND STEPInfo
- Publication number
- SE375565C SE375565C SE7106636A SE663671A SE375565C SE 375565 C SE375565 C SE 375565C SE 7106636 A SE7106636 A SE 7106636A SE 663671 A SE663671 A SE 663671A SE 375565 C SE375565 C SE 375565C
- Authority
- SE
- Sweden
- Prior art keywords
- acid
- perettic
- blake
- chemical mass
- mass
- Prior art date
Links
- 239000002253 acid Substances 0.000 title 2
- 239000000126 substance Substances 0.000 title 1
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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
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 |
---|---|---|---|
US4040470A | 1970-05-25 | 1970-05-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE375565B SE375565B (en) | 1975-04-21 |
SE375565C true SE375565C (en) | 1984-04-03 |
Family
ID=21910799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7106636A SE375565C (en) | 1970-05-25 | 1971-05-24 | SET TO BLAKE CHEMICAL MASS WITH ACID IN A FIRST STEP AND PERETTIC ACID IN A SECOND STEP |
Country Status (7)
Country | Link |
---|---|
US (1) | US3695995A (en) |
JP (1) | JPS5510714B1 (en) |
CA (1) | CA939855A (en) |
DE (1) | DE2124325C3 (en) |
FI (1) | FI59432C (en) |
FR (1) | FR2095038A5 (en) |
SE (1) | SE375565C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT378016B (en) * | 1982-12-02 | 1985-06-10 | Ver Edelstahlwerke Ag | METHOD FOR REMOVING AND / OR BLEACHING CELLULOSE MATERIAL, IN PARTICULAR CELLULAR, AND DEVICE FOR CARRYING OUT THE METHOD |
US20080087390A1 (en) * | 2006-10-11 | 2008-04-17 | Fort James Corporation | Multi-step pulp bleaching |
US8845860B2 (en) | 2010-09-16 | 2014-09-30 | Georgia-Pacific Consumer Products Lp | High brightness pulps from lignin rich waste papers |
-
1970
- 1970-05-25 US US40404A patent/US3695995A/en not_active Expired - Lifetime
- 1970-12-11 CA CA100,406A patent/CA939855A/en not_active Expired
-
1971
- 1971-05-12 JP JP3187971A patent/JPS5510714B1/ja active Pending
- 1971-05-17 DE DE2124325A patent/DE2124325C3/en not_active Expired
- 1971-05-21 FI FI1406/71A patent/FI59432C/en active
- 1971-05-24 SE SE7106636A patent/SE375565C/en unknown
- 1971-05-25 FR FR7118899A patent/FR2095038A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA939855A (en) | 1974-01-15 |
FR2095038A5 (en) | 1972-02-04 |
DE2124325A1 (en) | 1971-12-09 |
JPS5510714B1 (en) | 1980-03-18 |
DE2124325C3 (en) | 1980-06-19 |
SE375565B (en) | 1975-04-21 |
FI59432C (en) | 1981-08-10 |
FI59432B (en) | 1981-04-30 |
DE2124325B2 (en) | 1979-09-27 |
US3695995A (en) | 1972-10-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE395186B (en) | WAYS TO IMPROVE COOLING EFFECT AND COLD FACTOR IN A COOLING SYSTEM AND COOLING SYSTEM FOR EXERCISING THE SET | |
SE413285B (en) | PROVIDED TO MANUFACTURE A PHARMACEUTICAL CARRIER IN FILM FORM WITH INCORPORATED ACTIVE SUBSTANCE | |
TR17249A (en) | REINFORCEMENT IN TIRAS STEPS | |
SE417015B (en) | SET TO PAVISA HAPTENES IN A LIQUID TEST USING THE HAPTEN ENZYM CONJUGATE | |
SE419482B (en) | SET TO PAVISA CARCINOEMBRYONAL ANTIGEN MATERIAL IN BLOOD | |
SE423189B (en) | SET TO CUT BLINDNITES AND TOOL TO CUT BLINDNITS | |
IT939677B (en) | PHOTOSENSITIVE MASS TO COPY | |
AR212230A1 (en) | IMPROVEMENTS IN A PRESS-TUBULAR FILTER | |
BE768191A (en) | LASER RELAXATION OSCILLATOR | |
SE403729B (en) | MOLDED PLASTIC FORM TO BE USED AS AN ONE OF THE BODY IN A DIVISABLE FIXER OF HOOK TYPE, AND PROCEDURE FOR ITS PREPARATION | |
SE390862B (en) | PROCEDURE FOR MAKING A DISCREET RC-NET IN THIN FILM | |
BE767227A (en) | IMPROVEMENT IN THE PREPARATION OF CYCLOALCANONES AND CYCLOALCANOLS | |
BR7100997D0 (en) | IMPROVEMENTS IN OR RELATING TO ARTIFICIAL DENTURES | |
IT939676B (en) | PHOTOSENSITIVE MASS TO COPY | |
BR7507184A (en) | IMPROVEMENT IN SERVICE-COMMANDED PEDAL SET | |
SE421135B (en) | ALUMINUM WALL CONTAINER AND WAY TO MAKE FABULOUS WALL PLATE | |
CH537531A (en) | Fastening element to be anchored in a component | |
SE375565C (en) | SET TO BLAKE CHEMICAL MASS WITH ACID IN A FIRST STEP AND PERETTIC ACID IN A SECOND STEP | |
SE391868B (en) | SMOKING MIXTURE IN MANUFACTURED FORM | |
IT945025B (en) | PHOTOSENSITIVE MASS TO COPY | |
BR7503112A (en) | IMPROVEMENT IN TRANSISTORIZED AMPLIFIER | |
IT1019383B (en) | IMPROVEMENTS IN AND RELATING TO DEVICES TO MAINTAIN TIGHTNESS | |
IT977599B (en) | NUCLEAR FUEL AND PROCEDURE FOR ITS MANUFACTURING | |
IT1032356B (en) | IMPROVEMENT IN VEBRATORY DEVICES TO SUBJECT OBJECTS TO VIBRATION STRESS | |
BR7107754D0 (en) | IMPROVEMENTS IN AND RELATED TO FOOTWEAR |