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SE1750106A1 - 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
SE1750106A1
SE1750106A1 SE1750106A SE1750106A SE1750106A1 SE 1750106 A1 SE1750106 A1 SE 1750106A1 SE 1750106 A SE1750106 A SE 1750106A SE 1750106 A SE1750106 A SE 1750106A SE 1750106 A1 SE1750106 A1 SE 1750106A1
Authority
SE
Sweden
Prior art keywords
pulping process
silica removal
silica
removal
pulping
Prior art date
Application number
SE1750106A
Other languages
Swedish (sv)
Other versions
SE540305C2 (en
Inventor
Wilgotson Fredrik
Antonsson Stefan
Eriksson Lars
Wernersson Östberg Bengt
Olsson Krister
Original Assignee
Valmet Oy
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 Oy filed Critical Valmet Oy
Priority to SE1750106A priority Critical patent/SE1750106A1/en
Priority to EP18750677.9A priority patent/EP3580388B1/en
Priority to FIEP18750677.9T priority patent/FI3580388T3/en
Priority to BR112019014396-3A priority patent/BR112019014396B1/en
Priority to CN201880009957.9A priority patent/CN110249092A/en
Priority to PL18750677.9T priority patent/PL3580388T3/en
Priority to PT187506779T priority patent/PT3580388T/en
Priority to PCT/SE2018/050072 priority patent/WO2018147784A1/en
Priority to ES18750677T priority patent/ES2947013T3/en
Publication of SE540305C2 publication Critical patent/SE540305C2/en
Publication of SE1750106A1 publication Critical patent/SE1750106A1/en
Priority to CL2019002201A priority patent/CL2019002201A1/en

Links

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)
SE1750106A 2017-02-07 2017-02-07 System and method for silica removal in a pulping process SE1750106A1 (en)

Priority Applications (10)

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
PL18750677.9T PL3580388T3 (en) 2017-02-07 2018-01-31 System and method for silica removal in a pulping process
FIEP18750677.9T FI3580388T3 (en) 2017-02-07 2018-01-31 System and method for silica removal in a pulping process
BR112019014396-3A BR112019014396B1 (en) 2017-02-07 2018-01-31 SYSTEM AND METHOD FOR REMOVING SILICA IN A PROCESS FOR PRODUCING KRAFT PULP WITH PRE-HYDROLYSIS
CN201880009957.9A CN110249092A (en) 2017-02-07 2018-01-31 System and method for removing silica in pulping process
EP18750677.9A EP3580388B1 (en) 2017-02-07 2018-01-31 System and method for silica removal in a pulping process
PT187506779T PT3580388T (en) 2017-02-07 2018-01-31 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
ES18750677T ES2947013T3 (en) 2017-02-07 2018-01-31 System and method for the elimination of silica in a pulping process
CL2019002201A CL2019002201A1 (en) 2017-02-07 2019-08-05 System and method for the extraction of silica in a pulping process.

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
SE540305C2 SE540305C2 (en) 2018-06-05
SE1750106A1 true SE1750106A1 (en) 2018-06-05

Family

ID=62244602

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1750106A SE1750106A1 (en) 2017-02-07 2017-02-07 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)

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
FI103418B1 (en) * 1996-01-31 1999-06-30 Sunds Defibrator Woodhandling Process and apparatus for the pre-treatment of fibrous materials for the manufacture 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.
US6332950B1 (en) * 1997-06-25 2001-12-25 Kaverner Pulping Ab Method in connection with the pretreatment of comminuted fibrous material
EP1969175B1 (en) * 2005-12-07 2012-04-11 O'Flynn, Kelly Anthony 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
CA2869215A1 (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
US10179971B2 (en) * 2014-03-21 2019-01-15 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
WO2018147784A1 (en) 2018-08-16
SE540305C2 (en) 2018-06-05
CL2019002201A1 (en) 2019-11-08
ES2947013T3 (en) 2023-07-31
FI3580388T3 (en) 2023-07-10
BR112019014396A2 (en) 2020-02-11
EP3580388A4 (en) 2020-12-23
EP3580388B1 (en) 2023-05-10
EP3580388A1 (en) 2019-12-18
CN110249092A (en) 2019-09-17
PT3580388T (en) 2023-06-05
PL3580388T3 (en) 2023-09-11

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