SE8500715L - SET FOR PAPER MAKING - Google Patents

SET FOR PAPER MAKING

Info

Publication number
SE8500715L
SE8500715L SE8500715A SE8500715A SE8500715L SE 8500715 L SE8500715 L SE 8500715L SE 8500715 A SE8500715 A SE 8500715A SE 8500715 A SE8500715 A SE 8500715A SE 8500715 L SE8500715 L SE 8500715L
Authority
SE
Sweden
Prior art keywords
sulphite
paper making
paper
production
combination
Prior art date
Application number
SE8500715A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8500715D0 (en
Inventor
K U E Helmer
Original Assignee
Casco 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 Casco Nobel Ab filed Critical Casco Nobel Ab
Priority to SE8500715A priority Critical patent/SE8500715L/en
Publication of SE8500715D0 publication Critical patent/SE8500715D0/en
Priority to EP86850039A priority patent/EP0192623B1/en
Priority to AT86850039T priority patent/ATE57965T1/en
Priority to DE8686850039T priority patent/DE3675231D1/en
Priority to FI860650A priority patent/FI84635C/en
Priority to NO860558A priority patent/NO168843C/en
Priority to ES552021A priority patent/ES8801401A1/en
Publication of SE8500715L publication Critical patent/SE8500715L/en

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)
  • Golf Clubs (AREA)
  • Toys (AREA)
  • Luminescent Compositions (AREA)
  • Steroid Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Making Paper Articles (AREA)

Abstract

Sulphite, and preferably sodium sulphite and sodium bisulphite, is used as absorbing agent for aldehydes at the production of paper. The sulphite is added to the stock or the process water in combination with a cationic retention agent, such as eg alum. A product suitable for use at the production of paper is an aqueous solution of a combination of sulphite and a cationic retention agent, preferably alum.
SE8500715A 1985-02-15 1985-02-15 SET FOR PAPER MAKING SE8500715L (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8500715A SE8500715L (en) 1985-02-15 1985-02-15 SET FOR PAPER MAKING
EP86850039A EP0192623B1 (en) 1985-02-15 1986-02-07 A method at the production of paper
AT86850039T ATE57965T1 (en) 1985-02-15 1986-02-07 PROCESS OF PAPER MAKING.
DE8686850039T DE3675231D1 (en) 1985-02-15 1986-02-07 METHOD FOR PRODUCING PAPER.
FI860650A FI84635C (en) 1985-02-15 1986-02-12 SAETT VID PAPPERSFRAMSTAELLNING
NO860558A NO168843C (en) 1985-02-15 1986-02-14 PROCEDURE FOR AA REDUCE THE QUANTITY OF FREE PREPARED HEADWORK MANUFACTURING PAPER, AND Means FOR USING THE PROCEDURE
ES552021A ES8801401A1 (en) 1985-02-15 1986-02-14 A method at the production of paper.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8500715A SE8500715L (en) 1985-02-15 1985-02-15 SET FOR PAPER MAKING

Publications (2)

Publication Number Publication Date
SE8500715D0 SE8500715D0 (en) 1985-02-15
SE8500715L true SE8500715L (en) 1986-08-16

Family

ID=20359131

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8500715A SE8500715L (en) 1985-02-15 1985-02-15 SET FOR PAPER MAKING

Country Status (7)

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

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 (en) * 1971-02-27 1973-05-30 Asahi Chemical Ind PROCESS FOR THE TREATMENT OF ALDEHYDES
FR2306944A1 (en) * 1975-04-09 1976-11-05 Speichim Formaldehyde and phenol removal from waste waters - by treating with formaldehyde blocking agent, evaporating and incinerating concentrate
US4409375A (en) * 1982-02-11 1983-10-11 Champion International Corporation Method for scavenging aldehydes
DE3222195A1 (en) * 1982-06-12 1983-12-15 Basf Ag, 6700 Ludwigshafen METHOD FOR THE PRODUCTION OF CHIPWOOD MATERIALS WITH REDUCED FORMALDEHYDEMISSION

Also Published As

Publication number Publication date
FI860650A0 (en) 1986-02-12
ES552021A0 (en) 1987-12-16
NO860558L (en) 1986-08-18
ES8801401A1 (en) 1987-12-16
FI84635B (en) 1991-09-13
EP0192623A1 (en) 1986-08-27
SE8500715D0 (en) 1985-02-15
FI860650A (en) 1986-08-16
EP0192623B1 (en) 1990-10-31
ATE57965T1 (en) 1990-11-15
NO168843B (en) 1991-12-30
FI84635C (en) 1993-07-28
NO168843C (en) 1992-04-08
DE3675231D1 (en) 1990-12-06

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Legal Events

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NAV Patent application has lapsed

Ref document number: 8500715-1

Effective date: 19920217