DE3675231D1 - METHOD FOR PRODUCING PAPER. - Google Patents

METHOD FOR PRODUCING PAPER.

Info

Publication number
DE3675231D1
DE3675231D1 DE8686850039T DE3675231T DE3675231D1 DE 3675231 D1 DE3675231 D1 DE 3675231D1 DE 8686850039 T DE8686850039 T DE 8686850039T DE 3675231 T DE3675231 T DE 3675231T DE 3675231 D1 DE3675231 D1 DE 3675231D1
Authority
DE
Germany
Prior art keywords
sulphite
paper
producing paper
production
combination
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE8686850039T
Other languages
German (de)
Inventor
Ulla Karin Elisabet Helmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nouryon Pulp and Performance Chemicals AB
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
Application granted granted Critical
Publication of DE3675231D1 publication Critical patent/DE3675231D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)

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.
DE8686850039T 1985-02-15 1986-02-07 METHOD FOR PRODUCING PAPER. Expired - Fee Related DE3675231D1 (en)

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 (1)

Publication Number Publication Date
DE3675231D1 true DE3675231D1 (en) 1990-12-06

Family

ID=20359131

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686850039T Expired - Fee Related DE3675231D1 (en) 1985-02-15 1986-02-07 METHOD FOR PRODUCING PAPER.

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
SE8500715L (en) 1986-08-16
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

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee