EP0728239A1 - Method of high yield paper pulp bleaching using hydrogen peroxide - Google Patents
Method of high yield paper pulp bleaching using hydrogen peroxideInfo
- Publication number
- EP0728239A1 EP0728239A1 EP95900797A EP95900797A EP0728239A1 EP 0728239 A1 EP0728239 A1 EP 0728239A1 EP 95900797 A EP95900797 A EP 95900797A EP 95900797 A EP95900797 A EP 95900797A EP 0728239 A1 EP0728239 A1 EP 0728239A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulp
- reaction medium
- alcohol
- hydrogen peroxide
- weight
- 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.)
- Granted
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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- 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
- D21C9/101—Bleaching ; Apparatus therefor in solvent medium
-
- 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
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9313446A FR2712313B1 (en) | 1993-11-10 | 1993-11-10 | Process for bleaching a high-yield paper pulp with hydrogen peroxide. |
FR9313446 | 1993-11-10 | ||
PCT/FR1994/001286 WO1995013421A1 (en) | 1993-11-10 | 1994-11-07 | Method of high yield paper pulp bleaching using hydrogen peroxide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0728239A1 true EP0728239A1 (en) | 1996-08-28 |
EP0728239B1 EP0728239B1 (en) | 1997-08-13 |
Family
ID=9452745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95900797A Expired - Lifetime EP0728239B1 (en) | 1993-11-10 | 1994-11-07 | Method of high yield paper pulp bleaching using hydrogen peroxide |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0728239B1 (en) |
JP (1) | JPH09504841A (en) |
CN (1) | CN1139466A (en) |
AT (1) | ATE156877T1 (en) |
AU (1) | AU8147394A (en) |
CA (1) | CA2176030A1 (en) |
DE (1) | DE69405006T2 (en) |
FR (1) | FR2712313B1 (en) |
WO (1) | WO1995013421A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1055737C (en) * | 1996-01-15 | 2000-08-23 | 南京林业大学 | Prescription and process for intensively bleaching pulp using singlet state oxygen in alkali bleaching stage of multi-stage process |
IT1290070B1 (en) * | 1997-03-13 | 1998-10-19 | 3V Sigma Spa | COMPOSITIONS FOR THE PAPER WHITENING |
CN1107140C (en) * | 1998-05-14 | 2003-04-30 | 华南理工大学 | Method for bleaching medium thick paper pulp by for hydrogen peroxide for medium-small paper mill |
CN106012627B (en) * | 2016-05-24 | 2018-05-04 | 中国林业科学研究院林产化学工业研究所 | A kind of method that bamboo wood High brightenss bleach reducing rules are prepared using alcohols solvent |
CN108642943B (en) * | 2018-04-03 | 2021-03-19 | 中国林业科学研究院林产化学工业研究所 | Method for preparing high-whiteness and high-strength eucalyptus chemi-mechanical pulp |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2951371B2 (en) * | 1990-07-03 | 1999-09-20 | 株式会社日本紙パルプ研究所 | Waste paper deinking method |
CA2063351C (en) * | 1992-03-18 | 1996-08-13 | Stanley Alan Heimburger | Process for bleaching hardwood pulp |
-
1993
- 1993-11-10 FR FR9313446A patent/FR2712313B1/en not_active Expired - Fee Related
-
1994
- 1994-11-07 WO PCT/FR1994/001286 patent/WO1995013421A1/en active IP Right Grant
- 1994-11-07 JP JP7513627A patent/JPH09504841A/en active Pending
- 1994-11-07 DE DE69405006T patent/DE69405006T2/en not_active Expired - Fee Related
- 1994-11-07 CN CN94194659.2A patent/CN1139466A/en active Pending
- 1994-11-07 CA CA002176030A patent/CA2176030A1/en not_active Abandoned
- 1994-11-07 AU AU81473/94A patent/AU8147394A/en not_active Abandoned
- 1994-11-07 EP EP95900797A patent/EP0728239B1/en not_active Expired - Lifetime
- 1994-11-07 AT AT95900797T patent/ATE156877T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO9513421A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU8147394A (en) | 1995-05-29 |
CN1139466A (en) | 1997-01-01 |
DE69405006T2 (en) | 1998-01-15 |
ATE156877T1 (en) | 1997-08-15 |
DE69405006D1 (en) | 1997-09-18 |
FR2712313B1 (en) | 1995-12-15 |
CA2176030A1 (en) | 1995-05-18 |
WO1995013421A1 (en) | 1995-05-18 |
JPH09504841A (en) | 1997-05-13 |
EP0728239B1 (en) | 1997-08-13 |
FR2712313A1 (en) | 1995-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE1006057A3 (en) | Method for delignification of chemical pulp. | |
EP0018287B1 (en) | Process for the delignification of unbleached chemical paper pulp | |
EP2761081B1 (en) | Enzymatic pretreatment of wood in a method for producing mechanical paper pulp | |
FR2641010A1 (en) | ||
EP1322814B8 (en) | Method for bleaching paper pulp | |
EP0578304B1 (en) | Process for bleaching a chemical paper pulp | |
FR2520397A1 (en) | PROCESS FOR TREATING CHEMICAL PAPER PASTES | |
EP0728239B1 (en) | Method of high yield paper pulp bleaching using hydrogen peroxide | |
JP5275472B2 (en) | Method for producing paper pulp | |
EP0759105B1 (en) | Method for preparing delignified and bleached chemical paper pulps | |
EP0553141B1 (en) | Method for preserving the mechanical strength properties of chemical paper pulp | |
EP0514609A1 (en) | Process for hydrogen peroxide bleaching of high-yield pulps | |
WO1990011403A1 (en) | Bleaching process for the production of high bright pulps | |
EP0351330A1 (en) | Process for manufacturing bleached chemithermomechanical pulps | |
WO2014199101A1 (en) | Method for treating chemical pulps by treatment with ozone in the presence of magnesium ions | |
EP0587822B1 (en) | Process for bleaching and delignifying chemical paper pulp | |
BE1012675A6 (en) | Bleaching pulp process. | |
BE1011784A3 (en) | Bleaching pulp process. | |
BE1007757A3 (en) | Method of laundering of chemical pulp. | |
FR2593527A1 (en) | Process for bleaching mechanical pulps | |
BE1010880A3 (en) | Process for producing pulp chemicals. | |
BE1007272A3 (en) | Method of a pulp bleach. | |
BE1010679A3 (en) | Delignification process and laundering pulp chemicals. | |
WO1995031598A1 (en) | Delignification and bleaching method for chemical paper pulp | |
BE656601A (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19960524 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19961115 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR |
|
REF | Corresponds to: |
Ref document number: 156877 Country of ref document: AT Date of ref document: 19970815 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69405006 Country of ref document: DE Date of ref document: 19970918 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19991108 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19991109 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19991112 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001107 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010801 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |