FI116907B - Persulfatblandningar för uppslagning av våtstarkt papper - Google Patents

Persulfatblandningar för uppslagning av våtstarkt papper Download PDF

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Publication number
FI116907B
FI116907B FI954248A FI954248A FI116907B FI 116907 B FI116907 B FI 116907B FI 954248 A FI954248 A FI 954248A FI 954248 A FI954248 A FI 954248A FI 116907 B FI116907 B FI 116907B
Authority
FI
Finland
Prior art keywords
persulfate
base
carbonate
composition
resin
Prior art date
Application number
FI954248A
Other languages
English (en)
Finnish (fi)
Other versions
FI954248A0 (sv
FI954248A (sv
Inventor
Frank Edward Caropreso
Dean Samuel Thorp
Robert Hugo Tieckelmann
Original Assignee
Fmc Corp
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 Fmc Corp filed Critical Fmc Corp
Publication of FI954248A0 publication Critical patent/FI954248A0/sv
Publication of FI954248A publication Critical patent/FI954248A/sv
Application granted granted Critical
Publication of FI116907B publication Critical patent/FI116907B/sv

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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
    • 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
    • D21H21/14—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 characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/022—Chemicals therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Glass Compositions (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (7)

1. Sammansättning för defibrering av ^ hartsbaserat utskott, som omfattar en torr blan 5 persulfat och en bas som valts frän en grupp best (i) alkali-, ammonium- eller kalciumkarbonat, (ii) aikaiisk jordmetall- eller ammoniumseskvikarbon; (iii) alkali-, aikaiisk jordmetall- eller ammonia karbonat.
2. Sammansättning enligt patentkrav 1, vai sulfatet och basen förekommer som en torr blandninc ett persulfat-tili-bas-förhällande inom ett inte 90:10 tili 10:90 och blandningen är motständskra förbränning och självsläckande när den antänds.
3. Sammansättning enligt patentkrav 1 ellei vid basen är en seskvikarbonat och persulfatet ocl· karbonatet förekommer i ett persulJ seskvikarbonatviktförhällande pä 60:40 tili 90:10.
4. Sammansättning enligt patentkrav 1 ellei 2. vid basen är bikarbonat och persulfatet och bik; förekommer i ett persulfat-tili-bikarbonat-viktfö: \V pä 60:40 tili 90:10.
5. Sammansättning enligt patentkrav 1 ellei • · 5/·· vid basen är ett karbonat och persulfatet och ke ·:* 25 förekommer i ett persulfat-tili-karbonat-viktförhä] •·φ· ; 60:40 till 90:10. Μ· · ;*··. 6. Sammansättning enligt nägot av föregä tentkrav, varvid persulfat-till-bas-förhällandet . . 70:30 tili 80:20. • · « • « * *11/ 30 7. Sammansättning enligt nägot av föregä *··* tentkrav. varvid basen väli s frän en σ-ηιηη vätStarJet utskott som är baserat pä ha bineras med vatten; vätstarkt utskott som är baserat pä harts stäende kombination utsätts for en blandare/skärar 5 ett slam bildas; tillsats, antingen före eller under det att utsätts för en blandare/skärare, av minst 0,5 % aλ torrvikt av sammansättningen enligt nägot av förege tenkrav tili det vattenhaltiga slammet sä att harts 10 ned; och uppvärmni ng av de t vat t enhalt iga s1amme t temperatur pä minst 50 °C (122 °F) under tillräc för att en tillfredställande massaprodukt för papj verkning ska bildas. 15 9. Förfarande enligt patentkrav 8, varvid landet mellan persulfat och bas ligger inom int 90:10 tili 10:90 och väljs sä att basen förskjuter het som bildas när persulfatet oxiderar hartset, vs vudsakligen ingen pH-ändring förekommer som ett res 20 defibreringen.
10. Förfarande enligt patentkrav 8, varvic V.* landet persulfat tili bas ligger inom intervalli ..*·* tili 10:90 och väljs sä att ett förutbestämt slu bildas för defibreringsprocessen. ··· 25 11. Förfarande enligt nägot av patentkrav • ·*· varvid mängden av sammansättningen enligt vilket s ·*:* av patentkrav 1 tili 5 som tillsätts ligger inom et väli pä 0,5 % tili 15 % pä fiberns torrvikt och t . ^ förekommer under en tidsperiod som är tillräcklig • « * 3. framställa ätminstone steg 5-massa (enligt mätr *···* TAPPI-metoden Τ-205-ηττι81 ) .
13. Förfarande enligt nägot av patentkrav sen vidare inbegriper steget att införa massan i cessflöde för tillverkning av papper. » · · • « · i · * ·· « · i • · * • m * ··** • « • * · • · · ·«· · **· • ♦ · * · · • · • · ♦ « # « ·*· « »·» • * • * * » »
FI954248A 1993-03-12 1995-09-11 Persulfatblandningar för uppslagning av våtstarkt papper FI116907B (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US3093993A 1993-03-12 1993-03-12
US3093993 1993-03-12
PCT/US1994/001998 WO1994020682A1 (en) 1993-03-12 1994-02-24 Persulfate mixtures for repulping wet strength paper
US9401998 1994-02-24

Publications (3)

Publication Number Publication Date
FI954248A0 FI954248A0 (sv) 1995-09-11
FI954248A FI954248A (sv) 1995-10-05
FI116907B true FI116907B (sv) 2006-03-31

Family

ID=21856792

Family Applications (1)

Application Number Title Priority Date Filing Date
FI954248A FI116907B (sv) 1993-03-12 1995-09-11 Persulfatblandningar för uppslagning av våtstarkt papper

Country Status (13)

Country Link
US (2) US5718837A (sv)
EP (1) EP0688377B1 (sv)
JP (1) JPH08507836A (sv)
AT (1) ATE252662T1 (sv)
AU (1) AU685099B2 (sv)
BR (1) BR9405947A (sv)
CA (1) CA2157880C (sv)
DE (1) DE69433262T2 (sv)
ES (1) ES2206467T3 (sv)
FI (1) FI116907B (sv)
PT (1) PT688377E (sv)
TW (1) TW279912B (sv)
WO (1) WO1994020682A1 (sv)

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US6146497A (en) * 1998-01-16 2000-11-14 Hercules Incorporated Adhesives and resins, and processes for their production
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Also Published As

Publication number Publication date
EP0688377A4 (en) 1997-03-05
JPH08507836A (ja) 1996-08-20
AU685099B2 (en) 1998-01-15
ATE252662T1 (de) 2003-11-15
BR9405947A (pt) 1996-02-06
CA2157880C (en) 2004-07-13
US5972164A (en) 1999-10-26
WO1994020682A1 (en) 1994-09-15
FI954248A0 (sv) 1995-09-11
EP0688377A1 (en) 1995-12-27
DE69433262D1 (de) 2003-11-27
TW279912B (sv) 1996-07-01
AU6442394A (en) 1994-09-26
ES2206467T3 (es) 2004-05-16
DE69433262T2 (de) 2004-05-13
CA2157880A1 (en) 1994-09-15
PT688377E (pt) 2004-03-31
US5718837A (en) 1998-02-17
EP0688377B1 (en) 2003-10-22
FI954248A (sv) 1995-10-05

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