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FI875123L - A method for improving the retention or purification of cellulose fiber suspensions or wastewater in the paper, pulp or board industry - Google Patents

A method for improving the retention or purification of cellulose fiber suspensions or wastewater in the paper, pulp or board industry Download PDF

Info

Publication number
FI875123L
FI875123L FI875123A FI875123A FI875123L FI 875123 L FI875123 L FI 875123L FI 875123 A FI875123 A FI 875123A FI 875123 A FI875123 A FI 875123A FI 875123 L FI875123 L FI 875123L
Authority
FI
Finland
Prior art keywords
pulp
retention
purification
paper
wastewater
Prior art date
Application number
FI875123A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI90573C (en
FI875123A0 (en
FI90573B (en
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/en
Publication of FI875123L publication Critical patent/FI875123L/en
Application granted granted Critical
Publication of FI90573B publication Critical patent/FI90573B/en
Publication of FI90573C publication Critical patent/FI90573C/en

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)

Abstract

Retention and purification of fiber suspensions or waste water from the paper, pulp and fiberboard industry are improved by treatment with phenol formaldehyde resin, high-molecular polyethylene oxide and cationic starch derivatives or cationic cellulose derivatives.
FI875123A 1986-11-21 1987-11-19 A way to improve the retention or treatment of pulp fiber suspensions or wastewater in the paper, pulp or board industry FI90573C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8604975A SE454507B (en) 1986-11-21 1986-11-21 PUT IN THE PAPER, MASS OR BOARD INDUSTRIES IMPROVE RETENTION OR CELLULOSA FIBER SUSPENSION RESP RESP
SE8604975 1986-11-21

Publications (4)

Publication Number Publication Date
FI875123A0 FI875123A0 (en) 1987-11-19
FI875123L true FI875123L (en) 1988-05-22
FI90573B FI90573B (en) 1993-11-15
FI90573C FI90573C (en) 1994-02-25

Family

ID=20366355

Family Applications (1)

Application Number Title Priority Date Filing Date
FI875123A FI90573C (en) 1986-11-21 1987-11-19 A way to improve the retention or treatment of pulp fiber suspensions or wastewater in the paper, pulp or board industry

Country Status (3)

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

Families Citing this family (8)

* 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
FI943549L (en) * 1992-01-29 1994-09-28 Kemira Kemi Ab Improved method of making paper
SE500783C2 (en) * 1992-05-05 1994-09-05 Eka Nobel Ab Ways to clean wood resin-containing process or wastewater
SE509777C2 (en) * 1997-07-07 1999-03-08 Kemira Kemi Ab Methods to improve retention in dewatering a cellulose fiber suspension using an agent comprising a phenol formaldehyde resin and a polyethylene oxide
GB9800497D0 (en) * 1998-01-09 1998-03-04 Allied Colloids Ltd Dewatering of sludges
US20250162911A1 (en) * 2023-11-22 2025-05-22 Solenis Technologies, L.P. Methods of dewatering waste streams containing entrained particles

Also Published As

Publication number Publication date
SE454507B (en) 1988-05-09
NO166456C (en) 1991-07-24
FI90573C (en) 1994-02-25
NO874840D0 (en) 1987-11-19
FI875123A0 (en) 1987-11-19
NO874840L (en) 1988-05-24
SE8604975D0 (en) 1986-11-21
NO166456B (en) 1991-04-15
FI90573B (en) 1993-11-15

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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed

Owner name: BEROL KEMI AB