FI88814C - Foerfarande foer bekaempning av harts - Google Patents

Foerfarande foer bekaempning av harts Download PDF

Info

Publication number
FI88814C
FI88814C FI870072A FI870072A FI88814C FI 88814 C FI88814 C FI 88814C FI 870072 A FI870072 A FI 870072A FI 870072 A FI870072 A FI 870072A FI 88814 C FI88814 C FI 88814C
Authority
FI
Finland
Prior art keywords
polymer
process according
component
pulp
paper
Prior art date
Application number
FI870072A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI88814B (fi
FI870072A (fi
FI870072A0 (fi
Inventor
Thord Gustav Gunnar Hassler
Original Assignee
Grace W R 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 Grace W R Ab filed Critical Grace W R Ab
Publication of FI870072A0 publication Critical patent/FI870072A0/fi
Publication of FI870072A publication Critical patent/FI870072A/fi
Publication of FI88814B publication Critical patent/FI88814B/fi
Application granted granted Critical
Publication of FI88814C publication Critical patent/FI88814C/fi

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
    • 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
    • D21C9/086—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 with organic compounds or compositions comprising organic 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
    • D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Liquid Crystal Substances (AREA)
  • Valve Device For Special Equipments (AREA)
  • Epoxy Resins (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
FI870072A 1986-01-09 1987-01-08 Foerfarande foer bekaempning av harts FI88814C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8600506 1986-01-09
GB8600506A GB2186895B (en) 1986-01-09 1986-01-09 Pitch control aid

Publications (4)

Publication Number Publication Date
FI870072A0 FI870072A0 (fi) 1987-01-08
FI870072A FI870072A (fi) 1987-07-10
FI88814B FI88814B (fi) 1993-03-31
FI88814C true FI88814C (fi) 1993-07-12

Family

ID=10591145

Family Applications (1)

Application Number Title Priority Date Filing Date
FI870072A FI88814C (fi) 1986-01-09 1987-01-08 Foerfarande foer bekaempning av harts

Country Status (8)

Country Link
EP (1) EP0232015B1 (fr)
JP (1) JPH07113200B2 (fr)
AT (1) ATE59068T1 (fr)
CA (1) CA1306570C (fr)
DE (1) DE3766623D1 (fr)
ES (1) ES2019376B3 (fr)
FI (1) FI88814C (fr)
GB (1) GB2186895B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467667B (sv) * 1988-08-11 1992-08-24 Grace W R & Co Foerfarande foer reglering av produktionsstoerande mikrobiologiska avsaettningar paa papperstillverkningsutrustning
JP2618496B2 (ja) * 1988-09-16 1997-06-11 グレイス・ディアーボーソ・インコーポレーテッド 製紙機フエルト等への析出防止法
US4995944A (en) * 1988-09-16 1991-02-26 Dearborn Chemical Company Ltd. Controlling deposits on paper machine felts using cationic polymer and cationic surfactant mixture
US4997523A (en) * 1990-06-20 1991-03-05 Betz Panerchem, Inc. Method for effectively breaking up latex-coated paper during pulping to decrease the potential for white pitch deposition
GB2251868B (en) * 1990-12-24 1994-07-27 Grace W R & Co Pitch control
TW202043331A (zh) * 2018-11-30 2020-12-01 美商Ｂｌ科技公司 焦化加熱器之積垢減量

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248353A (en) * 1963-05-17 1966-04-26 American Cyanamid Co Alkylene polyamine resin
USRE28808E (en) * 1972-02-04 1976-05-11 American Cyanamid Company Polyquaternary flocculants
US3855299A (en) * 1973-06-11 1974-12-17 Grace W R & Co Water soluble reaction product of epihalohydrin and alkylamines
US4093605A (en) * 1975-01-24 1978-06-06 Wolff Walsrode Aktiengesellschaft Auxiliary agent for improving retention, drainage and treatment
US4250269A (en) * 1979-11-26 1981-02-10 Buckman Laboratories, Inc. Water-soluble mixtures of quaternary ammonium polymers, nonionic and/or cationic vinyl-addition polymers, and nonionic and/or cationic surfactants
CA1150914A (fr) * 1980-11-28 1983-08-02 Margaret J. Molnar Polymeres amine-epichlorhydrine servant a controler le pitch

Also Published As

Publication number Publication date
ES2019376B3 (es) 1991-06-16
ATE59068T1 (de) 1990-12-15
FI88814B (fi) 1993-03-31
JPS62223394A (ja) 1987-10-01
EP0232015B1 (fr) 1990-12-12
GB2186895A (en) 1987-08-26
FI870072A (fi) 1987-07-10
JPH07113200B2 (ja) 1995-12-06
DE3766623D1 (de) 1991-01-24
FI870072A0 (fi) 1987-01-08
CA1306570C (fr) 1992-08-18
GB8600506D0 (en) 1986-02-12
GB2186895B (en) 1989-11-01
EP0232015A1 (fr) 1987-08-12

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Legal Events

Date Code Title Description
BB Publication of examined application
PC Transfer of assignment of patent

Owner name: BETZDEARBORN INC.

FG Patent granted

Owner name: BETZDEARBORN, INC.

MA Patent expired