MA21393A1 - PROCESS FOR THE MANUFACTURE OF PAPER PULP. - Google Patents
PROCESS FOR THE MANUFACTURE OF PAPER PULP.Info
- Publication number
- MA21393A1 MA21393A1 MA21615A MA21615A MA21393A1 MA 21393 A1 MA21393 A1 MA 21393A1 MA 21615 A MA21615 A MA 21615A MA 21615 A MA21615 A MA 21615A MA 21393 A1 MA21393 A1 MA 21393A1
- Authority
- MA
- Morocco
- Prior art keywords
- paper pulp
- manufacture
- pulp
- neutralisation
- purification
- Prior art date
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Materials For Medical Uses (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Process for producing a paper pulp comprising a stage of H or P treatment just before the purification of the pulp or its transfer to the papermaking machine, where the neutralisation of the bleached pulp is performed with the aid of carbonic acid instead of sulphur dioxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8712451A FR2620144B1 (en) | 1987-09-08 | 1987-09-08 | PROCESS FOR THE MANUFACTURE OF BLEACHED PAPER PULP INCLUDING TREATMENT WITH CARBONIC ACID AFTER BLEACHING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MA21393A1 true MA21393A1 (en) | 1989-07-01 |
Family
ID=9354710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MA21615A MA21393A1 (en) | 1987-09-08 | 1988-09-07 | PROCESS FOR THE MANUFACTURE OF PAPER PULP. |
Country Status (18)
| Country | Link |
|---|---|
| EP (1) | EP0307295B1 (en) |
| JP (1) | JPH01207492A (en) |
| KR (1) | KR890005346A (en) |
| CN (1) | CN1013131B (en) |
| AT (1) | ATE62287T1 (en) |
| AU (1) | AU608054B2 (en) |
| BR (1) | BR8804619A (en) |
| DE (1) | DE3862265D1 (en) |
| ES (1) | ES2021857B3 (en) |
| FI (1) | FI884123A (en) |
| FR (1) | FR2620144B1 (en) |
| GR (1) | GR3001730T3 (en) |
| MA (1) | MA21393A1 (en) |
| NO (1) | NO883968L (en) |
| NZ (1) | NZ226060A (en) |
| OA (1) | OA08949A (en) |
| PT (1) | PT88435B (en) |
| ZA (1) | ZA886622B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9206415D0 (en) * | 1992-03-24 | 1992-05-06 | Albright & Wilson | Stabilisation of bleach liquors |
| US5639347A (en) * | 1993-03-24 | 1997-06-17 | Ahlstrom Machinery Inc. | Method of controlling of metals in a bleach plant, using oxidation |
| US5509999A (en) * | 1993-03-24 | 1996-04-23 | Kamyr, Inc. | Treatment of bleach plant effluents |
| FI110533B (en) * | 2000-05-04 | 2003-02-14 | Aga Ab | Method for controlling microbial growth |
| WO2011113119A1 (en) * | 2010-03-19 | 2011-09-22 | Fibria Celulose S/A | Process for the treatment of cellulose pulps, cellulose pulp thus obtained and use of biopolymer for treating cellulose pulps |
| CN104032611B (en) * | 2014-06-23 | 2016-04-20 | 广西大学 | A kind of dioxde pulp bleaching process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1993265A (en) * | 1933-02-28 | 1935-03-05 | Merrimac Chemical Co Inc | Manufacture of paper embodying alkaline earth metal carbonate fillers |
| FI52876C (en) * | 1974-09-03 | 1978-10-17 | Ahlstroem Oy | OVERFLOWER FOR CELLULOSE FRAON ALKALIKOK |
-
1987
- 1987-09-08 FR FR8712451A patent/FR2620144B1/en not_active Expired
-
1988
- 1988-09-05 DE DE8888402223T patent/DE3862265D1/en not_active Expired - Fee Related
- 1988-09-05 EP EP88402223A patent/EP0307295B1/en not_active Expired - Lifetime
- 1988-09-05 ES ES88402223T patent/ES2021857B3/en not_active Expired - Lifetime
- 1988-09-05 AT AT88402223T patent/ATE62287T1/en active
- 1988-09-06 ZA ZA886622A patent/ZA886622B/en unknown
- 1988-09-06 JP JP63221502A patent/JPH01207492A/en active Granted
- 1988-09-06 PT PT88435A patent/PT88435B/en not_active IP Right Cessation
- 1988-09-06 NZ NZ226060A patent/NZ226060A/en unknown
- 1988-09-07 MA MA21615A patent/MA21393A1/en unknown
- 1988-09-07 KR KR1019880011536A patent/KR890005346A/en not_active Application Discontinuation
- 1988-09-07 AU AU21960/88A patent/AU608054B2/en not_active Ceased
- 1988-09-07 NO NO88883968A patent/NO883968L/en unknown
- 1988-09-07 FI FI884123A patent/FI884123A/en not_active IP Right Cessation
- 1988-09-08 OA OA59425A patent/OA08949A/en unknown
- 1988-09-08 CN CN88106618A patent/CN1013131B/en not_active Expired
- 1988-09-08 BR BR8804619A patent/BR8804619A/en unknown
-
1991
- 1991-04-04 GR GR90401231T patent/GR3001730T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES2021857B3 (en) | 1991-11-16 |
| JPH0217678B2 (en) | 1990-04-23 |
| BR8804619A (en) | 1989-04-18 |
| ZA886622B (en) | 1991-05-29 |
| EP0307295A1 (en) | 1989-03-15 |
| KR890005346A (en) | 1989-05-13 |
| CN1013131B (en) | 1991-07-10 |
| PT88435B (en) | 1992-10-30 |
| CN1033664A (en) | 1989-07-05 |
| AU608054B2 (en) | 1991-03-21 |
| NO883968L (en) | 1989-03-09 |
| EP0307295B1 (en) | 1991-04-03 |
| JPH01207492A (en) | 1989-08-21 |
| DE3862265D1 (en) | 1991-05-08 |
| FI884123A (en) | 1989-03-09 |
| FR2620144A1 (en) | 1989-03-10 |
| FR2620144B1 (en) | 1989-12-08 |
| AU2196088A (en) | 1989-03-09 |
| NZ226060A (en) | 1991-02-26 |
| FI884123A0 (en) | 1988-09-07 |
| OA08949A (en) | 1990-11-30 |
| PT88435A (en) | 1989-07-31 |
| GR3001730T3 (en) | 1992-11-23 |
| ATE62287T1 (en) | 1991-04-15 |
| NO883968D0 (en) | 1988-09-07 |
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