FI90573B - Sätt att inom pappers-, massa- och boardindustrin förbättra retention eller rening av cellulosafibersuspensioner resp. avloppsvatten - Google Patents

Sätt att inom pappers-, massa- och boardindustrin förbättra retention eller rening av cellulosafibersuspensioner resp. avloppsvatten Download PDF

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Publication number
FI90573B
FI90573B FI875123A FI875123A FI90573B FI 90573 B FI90573 B FI 90573B FI 875123 A FI875123 A FI 875123A FI 875123 A FI875123 A FI 875123A FI 90573 B FI90573 B FI 90573B
Authority
FI
Finland
Prior art keywords
cationic
polyethylene oxide
pulp
purification
phenol
Prior art date
Application number
FI875123A
Other languages
English (en)
Finnish (fi)
Other versions
FI90573C (sv
FI875123A (sv
FI875123A0 (sv
Inventor
Jan Emanuelsson
Original Assignee
Berol Kemi 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 Berol Kemi Ab filed Critical Berol Kemi Ab
Publication of FI875123A0 publication Critical patent/FI875123A0/sv
Publication of FI875123A publication Critical patent/FI875123A/sv
Application granted granted Critical
Publication of FI90573B publication Critical patent/FI90573B/sv
Publication of FI90573C publication Critical patent/FI90573C/sv

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D21H17/29—Starch cationic
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/48—Condensation polymers of aldehydes or ketones with phenols
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/53—Polyethers; Polyesters

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (7)

1. Sätt att inom pappers-, massa- och boardindus-trin förbättra retention och rening av cellulosafiber- 5 suspensioner resp avloppsvatten genom behandling därav med fenolformaldehydharts och högmolekylär polyetylenoxid, kännetecknat därav, att behandlingen med fenolformaldehydharts och högmolekylär polyetylen-oxid sker i kombination med ett katjoniskt stärkelsederi- 20 vat eller ett katjoniskt cellulosaderivat.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att viktförhällandet mellan fenol-formaldehydharts och polyetylenoxid är 1:5 - 50:1 och mellan stärkelsederivatet eller cellulosaderivatet och 25 polyetylenoxid 1:5 - 100:1.
3. Förfarande enligt patentkravet 1 eller 2, kännetecknat därav, att stärkelsederivatets och cel-lulosaderivatets katjoniska grupper är kvartära ammonium-grupper. 2o Förfarande enligt nägot av tidigare patentkrav, kännetecknat därav, att polyetylenoxid har en molvikt over 500 000.
5. Förfarande enligt nägot av patentkraven 1-4, kännetecknat därav, att stärkelsederivatet 25 har en katjonisk substitutionsgrad av 0,01 - 0,1.
6. Förfarande enligt nägot av tidigare patentkraven 1-5, kännetecknat därav, att en cellulosa-fibersuspension avvattnas i närvaro av fenolformaldehydharts i en mängd av 0,01-0,5 viktprocent, polyetylenoxid 30. en mängd av 0,001-0,1 viktprocent och katjoniskt stär-kelsederivat eller katjoniskt cellulosaderivat i en mängd av 0,01-1,0 viktprocent.
7. Förfarande enligt nägot av patentkraven 1-6, kännetecknat därav, att avfallsvatten renas 14 90573 i närvaro av fenolformaldehydharts i en mängd av över 1 ppm, polyetylenoxid i en mängd av över 0,1 ppm och katjoniskt. stärkelsederivat eller katjoniskt cellulosa-derivat i en mängd över 1 ppm räknat pä avloppsvattnet.
FI875123A 1986-11-21 1987-11-19 Sätt att inom pappers-, massa- och boardindustrin förbättra retention eller rening av cellulosafibersuspensioner resp. avloppsvatten FI90573C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8604975A SE454507B (sv) 1986-11-21 1986-11-21 Sett att inom pappers-, massa- eller boardindustrin forbettra retention eller rening av cellulosafibersuspensioner resp avloppsvatten
SE8604975 1986-11-21

Publications (4)

Publication Number Publication Date
FI875123A0 FI875123A0 (sv) 1987-11-19
FI875123A FI875123A (sv) 1988-05-22
FI90573B true FI90573B (sv) 1993-11-15
FI90573C FI90573C (sv) 1994-02-25

Family

ID=20366355

Family Applications (1)

Application Number Title Priority Date Filing Date
FI875123A FI90573C (sv) 1986-11-21 1987-11-19 Sätt att inom pappers-, massa- och boardindustrin förbättra retention eller rening av cellulosafibersuspensioner resp. avloppsvatten

Country Status (3)

Country Link
FI (1) FI90573C (sv)
NO (1) NO166456C (sv)
SE (1) SE454507B (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173208A (en) * 1991-06-17 1992-12-22 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5230808A (en) * 1991-06-17 1993-07-27 Nalco Canada Inc. Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater
US5178770A (en) * 1991-07-12 1993-01-12 Nalco Canada Inc. Method of treating bctmp/ctmp wastewater
WO1993015271A1 (en) * 1992-01-29 1993-08-05 Kemira Kemi Aktiebolag Improved process for production of paper
SE500783C2 (sv) * 1992-05-05 1994-09-05 Eka Nobel Ab Sätt att rena vedhartsinnehållande process- eller avloppsvatten
SE509777C2 (sv) * 1997-07-07 1999-03-08 Kemira Kemi Ab Sätt att förbättra retentionen vid avvattning av en cellulosafibersuspension genom användning av ett medel, som inbegriper ett fenolformaldehydharts och en polyetylenoxid
GB9800497D0 (en) * 1998-01-09 1998-03-04 Allied Colloids Ltd Dewatering of sludges

Also Published As

Publication number Publication date
NO874840D0 (no) 1987-11-19
NO166456B (no) 1991-04-15
FI90573C (sv) 1994-02-25
NO874840L (no) 1988-05-24
NO166456C (no) 1991-07-24
FI875123A (sv) 1988-05-22
SE8604975D0 (sv) 1986-11-21
FI875123A0 (sv) 1987-11-19
SE454507B (sv) 1988-05-09

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MM Patent lapsed

Owner name: BEROL KEMI AB