NO168843C - Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten - Google Patents

Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten

Info

Publication number
NO168843C
NO168843C NO860558A NO860558A NO168843C NO 168843 C NO168843 C NO 168843C NO 860558 A NO860558 A NO 860558A NO 860558 A NO860558 A NO 860558A NO 168843 C NO168843 C NO 168843C
Authority
NO
Norway
Prior art keywords
procedure
headwork
reduce
manufacturing paper
sulphite
Prior art date
Application number
NO860558A
Other languages
English (en)
Norwegian (no)
Other versions
NO168843B (no
NO860558L (no
Inventor
Ulla 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 NO860558L publication Critical patent/NO860558L/no
Publication of NO168843B publication Critical patent/NO168843B/no
Publication of NO168843C publication Critical patent/NO168843C/no

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)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Making Paper Articles (AREA)
NO860558A 1985-02-15 1986-02-14 Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten NO168843C (no)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
NO860558L NO860558L (no) 1986-08-18
NO168843B NO168843B (no) 1991-12-30
NO168843C true NO168843C (no) 1992-04-08

Family

ID=20359131

Family Applications (1)

Application Number Title Priority Date Filing Date
NO860558A NO168843C (no) 1985-02-15 1986-02-14 Fremgangsmaate for aa nedsette mengden av fritt formaldehydved fremstilling av papir, samt middel for anvendelse av fremgangsmaaten

Country Status (7)

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

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
FI860650A0 (fi) 1986-02-12
DE3675231D1 (de) 1990-12-06
NO168843B (no) 1991-12-30
EP0192623B1 (en) 1990-10-31
FI84635C (sv) 1993-07-28
ATE57965T1 (de) 1990-11-15
ES552021A0 (es) 1987-12-16
EP0192623A1 (en) 1986-08-27
SE8500715L (sv) 1986-08-16
FI860650A (fi) 1986-08-16
NO860558L (no) 1986-08-18
ES8801401A1 (es) 1987-12-16
SE8500715D0 (sv) 1985-02-15
FI84635B (fi) 1991-09-13

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