EP3580388A4 - System and method for silica removal in a pulping process - Google Patents
System and method for silica removal in a pulping process Download PDFInfo
- Publication number
- EP3580388A4 EP3580388A4 EP18750677.9A EP18750677A EP3580388A4 EP 3580388 A4 EP3580388 A4 EP 3580388A4 EP 18750677 A EP18750677 A EP 18750677A EP 3580388 A4 EP3580388 A4 EP 3580388A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulping process
- silica removal
- silica
- removal
- pulping
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title 2
- 238000000034 method Methods 0.000 title 2
- 238000004537 pulping Methods 0.000 title 1
- 239000000377 silicon dioxide Substances 0.000 title 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/023—Cleaning wood chips or other raw 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
-
- 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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Silicon Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1750106A SE1750106A1 (en) | 2017-02-07 | 2017-02-07 | System and method for silica removal in a pulping process |
| PCT/SE2018/050072 WO2018147784A1 (en) | 2017-02-07 | 2018-01-31 | System and method for silica removal in a pulping process |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3580388A1 EP3580388A1 (en) | 2019-12-18 |
| EP3580388A4 true EP3580388A4 (en) | 2020-12-23 |
| EP3580388B1 EP3580388B1 (en) | 2023-05-10 |
Family
ID=62244602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18750677.9A Active EP3580388B1 (en) | 2017-02-07 | 2018-01-31 | System and method for silica removal in a pulping process |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP3580388B1 (en) |
| CN (1) | CN110249092A (en) |
| CL (1) | CL2019002201A1 (en) |
| ES (1) | ES2947013T3 (en) |
| FI (1) | FI3580388T3 (en) |
| PL (1) | PL3580388T3 (en) |
| PT (1) | PT3580388T (en) |
| SE (1) | SE1750106A1 (en) |
| WO (1) | WO2018147784A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2065188A (en) * | 1979-12-10 | 1981-06-24 | Dorr Oliver Inc | Desilication in Alkaline Pulp Processes |
| US4668340A (en) * | 1984-03-20 | 1987-05-26 | Kamyr, Inc. | Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material |
| ZA974836B (en) * | 1997-06-02 | 1998-06-24 | Bountiful Applied Res Corp | Process for treating spent, waste, alkaline digestion liquor from paper pulping operations and product. |
| WO2011110746A1 (en) * | 2010-03-11 | 2011-09-15 | Metso Paper, Inc. | Method for producing pulp |
| WO2013149913A1 (en) * | 2012-04-03 | 2013-10-10 | Ovivo Luxembourg S.a.r.l. | Process for removal of solid non-fibrous material from pulp |
| WO2015139141A1 (en) * | 2014-03-21 | 2015-09-24 | Iogen Energy Corporation | Method for processing a cellulosic feedstock at high consistency |
| EP3018251A1 (en) * | 2014-11-07 | 2016-05-11 | Valmet AB | Method for recovering hydrolysate in a prehydrolysis sulfate cooking process for producing pulp |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199399A (en) * | 1976-04-19 | 1980-04-22 | Process Evaluation & Development Corp. | Method for preparing bagasse dissolving pulps and producing rayon having a degree of polymerization of at least 800 therefrom |
| US4436586A (en) * | 1982-01-22 | 1984-03-13 | Kamyr, Inc. | Method of producing kraft pulp using an acid prehydrolysis and pre-extraction |
| FI103418B1 (en) * | 1996-01-31 | 1999-06-30 | Sunds Defibrator Woodhandling | Method and apparatus for pretreating fibrous material for the production of cellulosic pulp |
| AU3562297A (en) * | 1997-06-25 | 1999-01-04 | Kvaerner Pulping Ab | Method in connection with the pretreatment of comminuted fibrous material |
| WO2007065241A1 (en) * | 2005-12-07 | 2007-06-14 | Kelly Anthony O'flynn | A novel catalytic reactor process for the production of commercial grade pulp, native lignin and unicellular protein |
| CN101255664B (en) * | 2008-02-02 | 2010-10-20 | 山东太阳纸业股份有限公司 | Method for pulping of non-lumber fibre |
| US9333468B2 (en) * | 2012-09-24 | 2016-05-10 | Abengoa Bioenergy New Technologies, Llc | Soak vessels and methods for impregnating biomass with liquid |
| JP6522274B2 (en) * | 2013-08-06 | 2019-05-29 | 日本製紙株式会社 | Method of making dissolved kraft pulp. |
| CN203429499U (en) * | 2013-09-11 | 2014-02-12 | 江苏飞翔纸业有限公司 | Anti-blocking pulping waste water recycling system |
-
2017
- 2017-02-07 SE SE1750106A patent/SE1750106A1/en unknown
-
2018
- 2018-01-31 PT PT187506779T patent/PT3580388T/en unknown
- 2018-01-31 CN CN201880009957.9A patent/CN110249092A/en active Pending
- 2018-01-31 EP EP18750677.9A patent/EP3580388B1/en active Active
- 2018-01-31 WO PCT/SE2018/050072 patent/WO2018147784A1/en unknown
- 2018-01-31 FI FIEP18750677.9T patent/FI3580388T3/en active
- 2018-01-31 ES ES18750677T patent/ES2947013T3/en active Active
- 2018-01-31 PL PL18750677.9T patent/PL3580388T3/en unknown
-
2019
- 2019-08-05 CL CL2019002201A patent/CL2019002201A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2065188A (en) * | 1979-12-10 | 1981-06-24 | Dorr Oliver Inc | Desilication in Alkaline Pulp Processes |
| US4668340A (en) * | 1984-03-20 | 1987-05-26 | Kamyr, Inc. | Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material |
| ZA974836B (en) * | 1997-06-02 | 1998-06-24 | Bountiful Applied Res Corp | Process for treating spent, waste, alkaline digestion liquor from paper pulping operations and product. |
| WO2011110746A1 (en) * | 2010-03-11 | 2011-09-15 | Metso Paper, Inc. | Method for producing pulp |
| WO2013149913A1 (en) * | 2012-04-03 | 2013-10-10 | Ovivo Luxembourg S.a.r.l. | Process for removal of solid non-fibrous material from pulp |
| WO2015139141A1 (en) * | 2014-03-21 | 2015-09-24 | Iogen Energy Corporation | Method for processing a cellulosic feedstock at high consistency |
| EP3018251A1 (en) * | 2014-11-07 | 2016-05-11 | Valmet AB | Method for recovering hydrolysate in a prehydrolysis sulfate cooking process for producing pulp |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE EPODOC [online] EUROPEAN PATENT OFFICE, THE HAGUE, NL; 24 June 1998 (1998-06-24), "Process for treating spent, waste, alkaline digestion liquor frompaper pulping operations and product.", XP002801002, Database accession no. ZA-974836-A * |
Also Published As
| Publication number | Publication date |
|---|---|
| PL3580388T3 (en) | 2023-09-11 |
| PT3580388T (en) | 2023-06-05 |
| BR112019014396A2 (en) | 2020-02-11 |
| WO2018147784A1 (en) | 2018-08-16 |
| SE540305C2 (en) | 2018-06-05 |
| EP3580388A1 (en) | 2019-12-18 |
| CN110249092A (en) | 2019-09-17 |
| EP3580388B1 (en) | 2023-05-10 |
| SE1750106A1 (en) | 2018-06-05 |
| ES2947013T3 (en) | 2023-07-31 |
| CL2019002201A1 (en) | 2019-11-08 |
| FI3580388T3 (en) | 2023-07-10 |
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