DE140804T1 - Hypochlorit-behandlung von chemischen papierpulpen. - Google Patents
Hypochlorit-behandlung von chemischen papierpulpen.Info
- Publication number
- DE140804T1 DE140804T1 DE198484420167T DE84420167T DE140804T1 DE 140804 T1 DE140804 T1 DE 140804T1 DE 198484420167 T DE198484420167 T DE 198484420167T DE 84420167 T DE84420167 T DE 84420167T DE 140804 T1 DE140804 T1 DE 140804T1
- Authority
- DE
- Germany
- Prior art keywords
- hypochlorite
- hydrogen peroxide
- added
- weight
- chemical paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 title claims abstract 12
- 239000000126 substance Substances 0.000 title claims abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract 10
- 238000000034 method Methods 0.000 claims abstract 7
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract 3
- 238000004061 bleaching Methods 0.000 claims abstract 2
- 238000005406 washing Methods 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 239000005708 Sodium hypochlorite Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims 1
- CKPKEQOGKBPTSV-UHFFFAOYSA-M sodium;hydrogen peroxide;hydroxide Chemical compound [OH-].[Na+].OO CKPKEQOGKBPTSV-UHFFFAOYSA-M 0.000 claims 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8316500A FR2553444B1 (fr) | 1983-10-13 | 1983-10-13 | Traitement a l'hypochlorite de pates papetieres chimiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE140804T1 true DE140804T1 (de) | 1985-12-05 |
Family
ID=9293226
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE198484420167T Pending DE140804T1 (de) | 1983-10-13 | 1984-10-05 | Hypochlorit-behandlung von chemischen papierpulpen. |
| DE8484420167T Expired DE3461941D1 (en) | 1983-10-13 | 1984-10-05 | Hypochlorite treatment of chemical paper pulps |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8484420167T Expired DE3461941D1 (en) | 1983-10-13 | 1984-10-05 | Hypochlorite treatment of chemical paper pulps |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0140804B1 (enrdf_load_stackoverflow) |
| JP (1) | JPS6099086A (enrdf_load_stackoverflow) |
| AT (1) | ATE24745T1 (enrdf_load_stackoverflow) |
| AU (1) | AU565124B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1269805A (enrdf_load_stackoverflow) |
| DE (2) | DE140804T1 (enrdf_load_stackoverflow) |
| ES (1) | ES536713A0 (enrdf_load_stackoverflow) |
| FI (1) | FI75374C (enrdf_load_stackoverflow) |
| FR (1) | FR2553444B1 (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ229702A (en) * | 1989-06-23 | 1993-03-26 | Nz Forest Products Ltd Formerl | Bleaching chemical pulp including an activation step followed by an alkaline extraction step with no intervening washing step |
| AU6485598A (en) * | 1996-12-11 | 1998-07-03 | Akio Mita | Method for storing and transporting cellulosic and process for manufacturing pulp |
| CN100500990C (zh) * | 2005-09-02 | 2009-06-17 | 华南理工大学 | 纸浆清洁漂白方法 |
| JP4968638B2 (ja) * | 2005-11-15 | 2012-07-04 | 好高 青山 | 軸状部品の供給装置 |
| JP4941726B2 (ja) * | 2007-01-12 | 2012-05-30 | 沖縄県 | 変色木材の漂白方法 |
| JP4943908B2 (ja) * | 2007-03-26 | 2012-05-30 | 陽一 松本 | 葛根繊維の製造方法及び該製造方法により得られた葛根繊維 |
| JP2008264866A (ja) * | 2007-04-20 | 2008-11-06 | Yoshitaka Aoyama | 電気抵抗溶接における電極の動作制御装置と制御方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE736070C (de) * | 1938-07-01 | 1943-06-07 | Degussa | Verfahren zum Behandeln von Zellstoff |
| US2527563A (en) * | 1947-08-13 | 1950-10-31 | Buffalo Electro Chem Co | Method of bleaching semichemical pulps |
| US2661261A (en) * | 1950-06-30 | 1953-12-01 | Buffalo Electro Chem Co | Method of superbleaching chemical pulp |
| US2865701A (en) * | 1953-12-07 | 1958-12-23 | Nat Distillers Chem Corp | Process of bleaching kraft pulp with alkaline hypochlorite bleach acidifying the pulp containing residual chlorine and then bleaching with alkaline peroxide |
| US2920011A (en) * | 1955-03-18 | 1960-01-05 | Waldorf Paper Prod Co | Elevated temperature and pressure two stage hypochlorite peroxide pulp bleaching process |
-
1983
- 1983-10-13 FR FR8316500A patent/FR2553444B1/fr not_active Expired
-
1984
- 1984-10-05 DE DE198484420167T patent/DE140804T1/de active Pending
- 1984-10-05 DE DE8484420167T patent/DE3461941D1/de not_active Expired
- 1984-10-05 AT AT84420167T patent/ATE24745T1/de not_active IP Right Cessation
- 1984-10-05 EP EP84420167A patent/EP0140804B1/fr not_active Expired
- 1984-10-10 FI FI843975A patent/FI75374C/fi not_active IP Right Cessation
- 1984-10-11 ES ES536713A patent/ES536713A0/es active Granted
- 1984-10-12 AU AU34211/84A patent/AU565124B2/en not_active Ceased
- 1984-10-12 CA CA000465302A patent/CA1269805A/fr not_active Expired - Lifetime
- 1984-10-12 JP JP59212741A patent/JPS6099086A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CA1269805A (fr) | 1990-06-05 |
| AU3421184A (en) | 1985-04-18 |
| ATE24745T1 (de) | 1987-01-15 |
| FI843975A0 (fi) | 1984-10-10 |
| FI843975L (fi) | 1985-04-14 |
| FR2553444B1 (fr) | 1986-07-18 |
| JPS6099086A (ja) | 1985-06-01 |
| JPS6214678B2 (enrdf_load_stackoverflow) | 1987-04-03 |
| DE3461941D1 (en) | 1987-02-12 |
| EP0140804B1 (fr) | 1987-01-07 |
| AU565124B2 (en) | 1987-09-03 |
| ES8603607A1 (es) | 1985-12-16 |
| ES536713A0 (es) | 1985-12-16 |
| FI75374B (fi) | 1988-02-29 |
| EP0140804A1 (fr) | 1985-05-08 |
| FR2553444A1 (fr) | 1985-04-19 |
| FI75374C (fi) | 1988-06-09 |
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