CH208757A - Process for bleaching cellulose with chlorine or substances emitting chlorine, in particular chlorine gas. - Google Patents
Process for bleaching cellulose with chlorine or substances emitting chlorine, in particular chlorine gas.Info
- Publication number
- CH208757A CH208757A CH208757DA CH208757A CH 208757 A CH208757 A CH 208757A CH 208757D A CH208757D A CH 208757DA CH 208757 A CH208757 A CH 208757A
- Authority
- CH
- Switzerland
- Prior art keywords
- chlorine
- gas
- bleaching cellulose
- substances emitting
- substances
- Prior art date
Links
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title 2
- 239000000460 chlorine Substances 0.000 title 2
- 229910052801 chlorine Inorganic materials 0.000 title 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title 1
- 238000004061 bleaching Methods 0.000 title 1
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 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
- D21C9/1026—Other features in bleaching processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE841027X | 1937-07-23 | ||
| DEA772D DE948299C (en) | 1937-07-23 | 1938-10-28 | Process and apparatus for bleaching pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH208757A true CH208757A (en) | 1940-02-29 |
Family
ID=25760429
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH208757D CH208757A (en) | 1937-07-23 | 1938-07-01 | Process for bleaching cellulose with chlorine or substances emitting chlorine, in particular chlorine gas. |
| CH215082D CH215082A (en) | 1937-07-23 | 1939-09-27 | Process for bleaching pulp with chlorine gas. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH215082D CH215082A (en) | 1937-07-23 | 1939-09-27 | Process for bleaching pulp with chlorine gas. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2193301A (en) |
| CH (2) | CH208757A (en) |
| DE (1) | DE948299C (en) |
| FR (2) | FR841027A (en) |
-
1938
- 1938-07-01 CH CH208757D patent/CH208757A/en unknown
- 1938-07-19 US US220116A patent/US2193301A/en not_active Expired - Lifetime
- 1938-07-22 FR FR841027D patent/FR841027A/en not_active Expired
- 1938-10-28 DE DEA772D patent/DE948299C/en not_active Expired
-
1939
- 1939-09-27 CH CH215082D patent/CH215082A/en unknown
-
1941
- 1941-05-20 FR FR872300D patent/FR872300A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR872300A (en) | 1942-06-05 |
| CH215082A (en) | 1941-05-31 |
| FR841027A (en) | 1939-05-09 |
| US2193301A (en) | 1940-03-12 |
| DE948299C (en) | 1956-08-30 |
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