ZA200806264B - Method and system for semi-chemical pulping - Google Patents
Method and system for semi-chemical pulping Download PDFInfo
- Publication number
- ZA200806264B ZA200806264B ZA200806264A ZA200806264A ZA200806264B ZA 200806264 B ZA200806264 B ZA 200806264B ZA 200806264 A ZA200806264 A ZA 200806264A ZA 200806264 A ZA200806264 A ZA 200806264A ZA 200806264 B ZA200806264 B ZA 200806264B
- Authority
- ZA
- South Africa
- Prior art keywords
- cooking vessel
- liquor
- extraction screen
- cooking
- lignin
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 30
- 239000000126 substance Substances 0.000 title claims description 29
- 238000004537 pulping Methods 0.000 title claims description 20
- 238000000605 extraction Methods 0.000 claims description 62
- 238000010411 cooking Methods 0.000 claims description 59
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 229920005610 lignin Polymers 0.000 claims description 28
- 239000012978 lignocellulosic material Substances 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000003134 recirculating effect Effects 0.000 claims 1
- 239000002655 kraft paper Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 241001062472 Stokellia anisodon Species 0.000 description 2
- -1 for example Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 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
- D21C3/00—Pulping cellulose-containing materials
-
- 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
- D21C7/00—Digesters
Landscapes
- Paper (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US95444607P | 2007-08-07 | 2007-08-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200806264B true ZA200806264B (en) | 2009-10-28 |
Family
ID=40345370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200806264A ZA200806264B (en) | 2007-08-07 | 2008-07-18 | Method and system for semi-chemical pulping |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20090038767A1 (ja) |
| JP (1) | JP5060421B2 (ja) |
| CN (1) | CN101387087B (ja) |
| AU (1) | AU2008203206B2 (ja) |
| BR (1) | BRPI0803333A2 (ja) |
| CL (1) | CL2008002309A1 (ja) |
| ES (1) | ES2525700T3 (ja) |
| PT (1) | PT2034090E (ja) |
| RU (1) | RU2479682C2 (ja) |
| ZA (1) | ZA200806264B (ja) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100263813A1 (en) * | 2009-04-21 | 2010-10-21 | Andritz Inc. | Green liquor pretreatment of lignocellulosic material |
| WO2012005643A1 (en) * | 2010-07-09 | 2012-01-12 | Metso Paper Sweden Ab | Method and system for impregnating chips |
| CN102787521A (zh) * | 2011-05-16 | 2012-11-21 | 张世乐 | 一种用于间歇蒸煮的蒸煮液补偿技术 |
| CN102704296B (zh) * | 2012-07-09 | 2014-06-18 | 江苏联海生物科技有限公司 | 一种预处理秸秆类原料的工艺 |
| CN105019290B (zh) * | 2015-08-03 | 2017-01-11 | 海南金海浆纸业有限公司 | 一种制浆造纸蒸解釜筛板处理方法 |
| UY39227A (es) * | 2020-05-22 | 2021-12-31 | Suzano Sa | Método para desobstruir o limpiar una pantalla en un digestor continuo de cocción de proceso kraft |
| CN112025906B (zh) * | 2020-09-10 | 2021-11-16 | 大禾(上海)环保科技有限公司 | 一种秸秆联产黄腐酸的无胶无醛纤维板生产工艺 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432245A (en) * | 1972-05-01 | 1976-04-14 | Westvaco Corp | Method of pulping wood |
| US3811995A (en) * | 1972-09-05 | 1974-05-21 | Westvaco Corp | Method of high yield semichemical pulp production |
| JPS53119302A (en) * | 1977-03-19 | 1978-10-18 | Toyo Pulp Co Ltd | Production of alkali pulp |
| JPS569494A (en) * | 1979-06-29 | 1981-01-30 | Mitsubishi Heavy Ind Ltd | Causticizing method and apparatus of green liquor |
| CA2037717C (en) * | 1990-09-17 | 1996-03-05 | Bertil Stromberg | Extended kraft cooking with white liquor added to wash circulation |
| US6132556A (en) * | 1993-05-04 | 2000-10-17 | Andritz-Ahlstrom Inc. | Method of controlling pulp digester pressure via liquor extraction |
| US5565061A (en) * | 1994-06-14 | 1996-10-15 | Salminen; Reijo | Method and apparatus for removing scales deposited on the strainer of a pulp digester |
| US5536367A (en) * | 1995-01-25 | 1996-07-16 | Salminen; Reijo K. | Pulp digester cleaning system |
| US6248208B1 (en) * | 1995-06-02 | 2001-06-19 | Andritz-Ahlstrom Inc. | Pretreatment of chips before cooking |
| CN1201851A (zh) * | 1998-05-22 | 1998-12-16 | 陈源 | 棉浆及其他粗浆清洁生产工艺 |
| JP2000080580A (ja) * | 1998-09-04 | 2000-03-21 | Daishowa Paper Mfg Co Ltd | 連続蒸解釜におけるスケ−ル除去方法 |
| US6277240B1 (en) * | 1998-10-02 | 2001-08-21 | Andritz-Ahlstrom Inc. | Method for continuously pulping cellulosic fibrous material |
| US20010032711A1 (en) * | 1998-10-26 | 2001-10-25 | C. Bertil Stromberg | Pulp cooking with particular alkali profiles |
| MY129053A (en) * | 2001-06-06 | 2007-03-30 | Thermphos Trading Gmbh | Composition for inhibiting calcium salt scale |
| FI120547B (fi) * | 2004-10-04 | 2009-11-30 | Metso Paper Inc | Alkalinen keittomenetelmä ja laitteisto massan valmistamiseksi |
| FI126694B (fi) * | 2005-12-02 | 2017-04-13 | Metsä Board Oyj | Kemimekaaninen massa ja menetelmä sen valmistamiseksi |
-
2008
- 2008-07-15 US US12/173,132 patent/US20090038767A1/en not_active Abandoned
- 2008-07-18 AU AU2008203206A patent/AU2008203206B2/en not_active Ceased
- 2008-07-18 ZA ZA200806264A patent/ZA200806264B/en unknown
- 2008-07-24 RU RU2008130768/12A patent/RU2479682C2/ru not_active IP Right Cessation
- 2008-07-30 PT PT80136591T patent/PT2034090E/pt unknown
- 2008-07-30 ES ES08013659.1T patent/ES2525700T3/es active Active
- 2008-08-01 JP JP2008199466A patent/JP5060421B2/ja not_active Expired - Fee Related
- 2008-08-06 BR BRPI0803333-1A patent/BRPI0803333A2/pt not_active Application Discontinuation
- 2008-08-06 CL CL2008002309A patent/CL2008002309A1/es unknown
- 2008-08-07 CN CN2008101349531A patent/CN101387087B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| PT2034090E (pt) | 2014-12-19 |
| CN101387087B (zh) | 2013-05-15 |
| ES2525700T3 (es) | 2014-12-29 |
| CN101387087A (zh) | 2009-03-18 |
| AU2008203206A1 (en) | 2009-02-26 |
| CL2008002309A1 (es) | 2009-03-13 |
| US20090038767A1 (en) | 2009-02-12 |
| JP2009041175A (ja) | 2009-02-26 |
| RU2479682C2 (ru) | 2013-04-20 |
| AU2008203206B2 (en) | 2011-12-15 |
| JP5060421B2 (ja) | 2012-10-31 |
| BRPI0803333A2 (pt) | 2009-04-07 |
| RU2008130768A (ru) | 2010-01-27 |
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