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PL3580388T3 - System and method for silica removal in a pulping process - Google Patents

System and method for silica removal in a pulping process

Info

Publication number
PL3580388T3
PL3580388T3 PL18750677.9T PL18750677T PL3580388T3 PL 3580388 T3 PL3580388 T3 PL 3580388T3 PL 18750677 T PL18750677 T PL 18750677T PL 3580388 T3 PL3580388 T3 PL 3580388T3
Authority
PL
Poland
Prior art keywords
pulping process
silica removal
silica
removal
pulping
Prior art date
Application number
PL18750677.9T
Other languages
Polish (pl)
Inventor
Fredrik Wilgotson
Stefan ANTONSSON
Lars Eriksson
Bengt WERNERSSON ÖSTBERG
Krister Olsson
Original Assignee
Valmet Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valmet Ab filed Critical Valmet Ab
Publication of PL3580388T3 publication Critical patent/PL3580388T3/en

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
    • 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
    • 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
    • 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)
PL18750677.9T 2017-02-07 2018-01-31 System and method for silica removal in a pulping process PL3580388T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1750106A SE540305C2 (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 (1)

Publication Number Publication Date
PL3580388T3 true PL3580388T3 (en) 2023-09-11

Family

ID=62244602

Family Applications (1)

Application Number Title Priority Date Filing Date
PL18750677.9T PL3580388T3 (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) SE540305C2 (en)
WO (1) WO2018147784A1 (en)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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
IN154386B (en) * 1979-12-10 1984-10-20 Dorr Oliver Inc
US4436586A (en) * 1982-01-22 1984-03-13 Kamyr, Inc. Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
US4668340A (en) * 1984-03-20 1987-05-26 Kamyr, Inc. Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material
FI103418B (en) * 1996-01-31 1999-06-30 Sunds Defibrator Woodhandling Method and apparatus for the pre-treatment of fibrous material for the production of cellulose pulp
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.
AU3562297A (en) * 1997-06-25 1999-01-04 Kvaerner Pulping Ab Method in connection with the pretreatment of comminuted fibrous material
AU2005338842B2 (en) * 2005-12-07 2011-08-11 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
FI123100B (en) * 2010-03-11 2012-11-15 Metso Paper Inc Procedure for the collection of by-products
WO2013149913A1 (en) * 2012-04-03 2013-10-10 Ovivo Luxembourg S.a.r.l. Process for removal of solid non-fibrous material from pulp
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
CA2941083C (en) * 2014-03-21 2020-07-28 Iogen Energy Corporation Method for processing a cellulosic feedstock at high consistency
SE539706C2 (en) * 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolysate

Also Published As

Publication number Publication date
FI3580388T3 (en) 2023-07-10
EP3580388B1 (en) 2023-05-10
SE1750106A1 (en) 2018-06-05
BR112019014396A2 (en) 2020-02-11
PT3580388T (en) 2023-06-05
ES2947013T3 (en) 2023-07-31
WO2018147784A1 (en) 2018-08-16
SE540305C2 (en) 2018-06-05
CL2019002201A1 (en) 2019-11-08
EP3580388A1 (en) 2019-12-18
CN110249092A (en) 2019-09-17
EP3580388A4 (en) 2020-12-23

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