MX156081A - IMPROVED PROCEDURE TO FORM MECHANICAL WOOD PULPS - Google Patents

IMPROVED PROCEDURE TO FORM MECHANICAL WOOD PULPS

Info

Publication number
MX156081A
MX156081A MX18491280A MX18491280A MX156081A MX 156081 A MX156081 A MX 156081A MX 18491280 A MX18491280 A MX 18491280A MX 18491280 A MX18491280 A MX 18491280A MX 156081 A MX156081 A MX 156081A
Authority
MX
Mexico
Prior art keywords
improved procedure
wood pulps
form mechanical
mechanical wood
pulps
Prior art date
Application number
MX18491280A
Other languages
Spanish (es)
Inventor
Adrian John Barnet
Alan C Shaw
Charles Donald Logan
Original Assignee
Qns Paper
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 Qns Paper filed Critical Qns Paper
Publication of MX156081A publication Critical patent/MX156081A/en

Links

Classifications

    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
MX18491280A 1979-12-17 1980-11-26 IMPROVED PROCEDURE TO FORM MECHANICAL WOOD PULPS MX156081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10466879A 1979-12-17 1979-12-17

Publications (1)

Publication Number Publication Date
MX156081A true MX156081A (en) 1988-06-30

Family

ID=22301732

Family Applications (1)

Application Number Title Priority Date Filing Date
MX18491280A MX156081A (en) 1979-12-17 1980-11-26 IMPROVED PROCEDURE TO FORM MECHANICAL WOOD PULPS

Country Status (9)

Country Link
EP (1) EP0030778B1 (en)
JP (1) JPS5691093A (en)
AU (1) AU531907B2 (en)
BR (1) BR8005950A (en)
CA (1) CA1145107A (en)
DE (1) DE3064270D1 (en)
FI (1) FI71779C (en)
MX (1) MX156081A (en)
NZ (1) NZ194407A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502918A (en) * 1981-06-10 1985-03-05 Macmillan Bloedel Limited Two-stage chemical treatment of mechanical wood pulp with sodium sulfite
SE456430B (en) * 1985-11-06 1988-10-03 Sunds Defibrator SET FOR MAKING MECHANICAL MASS
US4718980A (en) * 1985-12-30 1988-01-12 Weyerhaeuser Company Interstage treatment of mechanical pulp
US5607546A (en) * 1990-02-13 1997-03-04 Molnlycke Ab CTMP-process
SE466060C (en) 1990-02-13 1995-09-11 Moelnlycke Ab Absorbent chemitermomechanical mass and preparation thereof
AU4271596A (en) * 1995-12-19 1997-07-14 Kvaerner Hymac Inc. Process for treating refiner pulp
CA2243228A1 (en) * 1997-07-17 1999-01-17 Donohue Inc. Preparation of mechanical wood pulps with reduced energy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145246A (en) * 1976-07-19 1979-03-20 Crown Zellerbach Corporation Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom

Also Published As

Publication number Publication date
FI802654A (en) 1981-06-18
AU531907B2 (en) 1983-09-08
EP0030778B1 (en) 1983-07-20
JPS5691093A (en) 1981-07-23
AU6046080A (en) 1981-06-25
EP0030778A1 (en) 1981-06-24
FI71779C (en) 1987-02-09
CA1145107A (en) 1983-04-26
NZ194407A (en) 1983-02-15
FI71779B (en) 1986-10-31
DE3064270D1 (en) 1983-08-25
BR8005950A (en) 1981-06-23

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