FI84635C - Saett vid pappersframstaellning - Google Patents

Saett vid pappersframstaellning Download PDF

Info

Publication number
FI84635C
FI84635C FI860650A FI860650A FI84635C FI 84635 C FI84635 C FI 84635C FI 860650 A FI860650 A FI 860650A FI 860650 A FI860650 A FI 860650A FI 84635 C FI84635 C FI 84635C
Authority
FI
Finland
Prior art keywords
formaldehyde
sulfite
alum
paper
added
Prior art date
Application number
FI860650A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI860650A (fi
FI84635B (fi
FI860650A0 (fi
Inventor
Ulla Karin Elisabet Helmer
Original Assignee
Eka Nobel 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 Eka Nobel Ab filed Critical Eka Nobel Ab
Publication of FI860650A0 publication Critical patent/FI860650A0/fi
Publication of FI860650A publication Critical patent/FI860650A/fi
Application granted granted Critical
Publication of FI84635B publication Critical patent/FI84635B/fi
Publication of FI84635C publication Critical patent/FI84635C/fi

Links

Classifications

    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Luminescent Compositions (AREA)
  • Steroid Compounds (AREA)
  • Golf Clubs (AREA)
  • Toys (AREA)
  • Making Paper Articles (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FI860650A 1985-02-15 1986-02-12 Saett vid pappersframstaellning FI84635C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8500715A SE8500715L (sv) 1985-02-15 1985-02-15 Sett vid pappersframstellning
SE8500715 1985-02-15

Publications (4)

Publication Number Publication Date
FI860650A0 FI860650A0 (fi) 1986-02-12
FI860650A FI860650A (fi) 1986-08-16
FI84635B FI84635B (fi) 1991-09-13
FI84635C true FI84635C (fi) 1993-07-28

Family

ID=20359131

Family Applications (1)

Application Number Title Priority Date Filing Date
FI860650A FI84635C (fi) 1985-02-15 1986-02-12 Saett vid pappersframstaellning

Country Status (7)

Country Link
EP (1) EP0192623B1 (es)
AT (1) ATE57965T1 (es)
DE (1) DE3675231D1 (es)
ES (1) ES8801401A1 (es)
FI (1) FI84635C (es)
NO (1) NO168843C (es)
SE (1) SE8500715L (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326479A (en) * 1993-09-01 1994-07-05 Nalco Chemical Company Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT947732B (it) * 1971-02-27 1973-05-30 Asahi Chemical Ind Processo per il trattamento delle aldeidi
FR2306944A1 (fr) * 1975-04-09 1976-11-05 Speichim Procede de traitement d'eaux residuaires formophenoliques
US4409375A (en) * 1982-02-11 1983-10-11 Champion International Corporation Method for scavenging aldehydes
DE3222195A1 (de) * 1982-06-12 1983-12-15 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von spanholzwerkstoffen mit verringerter formaldehydemission

Also Published As

Publication number Publication date
FI860650A (fi) 1986-08-16
NO168843B (no) 1991-12-30
EP0192623A1 (en) 1986-08-27
SE8500715L (sv) 1986-08-16
DE3675231D1 (de) 1990-12-06
SE8500715D0 (sv) 1985-02-15
EP0192623B1 (en) 1990-10-31
NO860558L (no) 1986-08-18
FI84635B (fi) 1991-09-13
ES552021A0 (es) 1987-12-16
FI860650A0 (fi) 1986-02-12
NO168843C (no) 1992-04-08
ES8801401A1 (es) 1987-12-16
ATE57965T1 (de) 1990-11-15

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: EKA NOBEL AB