ZA785356B - A process for producing wood pulp of coniferous trees for further chemical processing and for special papers - Google Patents

A process for producing wood pulp of coniferous trees for further chemical processing and for special papers

Info

Publication number
ZA785356B
ZA785356B ZA00785356A ZA785356A ZA785356B ZA 785356 B ZA785356 B ZA 785356B ZA 00785356 A ZA00785356 A ZA 00785356A ZA 785356 A ZA785356 A ZA 785356A ZA 785356 B ZA785356 B ZA 785356B
Authority
ZA
South Africa
Prior art keywords
wood pulp
chemical processing
further chemical
coniferous trees
producing wood
Prior art date
Application number
ZA00785356A
Other languages
English (en)
Inventor
H Krueger
J Franzreb
H Klein
W Traser
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of ZA785356B publication Critical patent/ZA785356B/xx

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Cosmetics (AREA)
  • Sanitary Thin Papers (AREA)
ZA00785356A 1977-09-20 1978-09-20 A process for producing wood pulp of coniferous trees for further chemical processing and for special papers ZA785356B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2742262A DE2742262C2 (de) 1977-09-20 1977-09-20 Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs

Publications (1)

Publication Number Publication Date
ZA785356B true ZA785356B (en) 1979-09-26

Family

ID=6019413

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00785356A ZA785356B (en) 1977-09-20 1978-09-20 A process for producing wood pulp of coniferous trees for further chemical processing and for special papers

Country Status (16)

Country Link
JP (1) JPS5455606A (de)
AR (1) AR218936A1 (de)
AT (1) AT367812B (de)
BE (1) BE870607A (de)
BR (1) BR7806050A (de)
CA (1) CA1133660A (de)
CH (1) CH638003A5 (de)
DE (1) DE2742262C2 (de)
ES (1) ES472687A1 (de)
FI (1) FI68273C (de)
FR (1) FR2403418A1 (de)
GB (1) GB2005743B (de)
IT (1) IT1109111B (de)
NO (1) NO153978C (de)
SE (1) SE7809831L (de)
ZA (1) ZA785356B (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520397A1 (fr) * 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
DE4031597A1 (de) * 1990-10-05 1992-04-09 Sueddeutsche Kalkstickstoff Verfahren zur chlorarmen bleiche und delignifizierung von zellstoff
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
US6398908B1 (en) 1991-04-30 2002-06-04 Eka Nobel Ab Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
ZA955290B (en) * 1994-07-11 1996-12-27 Ingersoll Rand Co Peroxide bleaching process for cellulosic and lignocellulosic material
RU2128261C1 (ru) * 1998-05-26 1999-03-27 Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии Способ отбелки целлюлозы
RU2142529C1 (ru) * 1999-05-17 1999-12-10 Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии Способ отбелки целлюлозы
RU2164572C1 (ru) * 2000-03-14 2001-03-27 Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии Способ отбелки сульфатной целлюлозы
RU2163946C1 (ru) * 2000-08-02 2001-03-10 Институт химии Коми научного центра Уральского отделения РАН Способ отбелки материалов или полуфабрикатов, содержащих целлюлозу
RU2205257C1 (ru) * 2002-07-01 2003-05-27 Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии Способ отбелки сульфатной целлюлозы
RU2243304C1 (ru) * 2004-02-04 2004-12-27 Томский политехнический университет Способ безхлорной отбелки сульфатной целлюлозы
DE102007036376A1 (de) * 2007-07-31 2009-02-05 Voith Patent Gmbh Gebleichter Faserstoff
RU2413046C1 (ru) * 2009-09-21 2011-02-27 Эльвира Ильинична Федорова Способ отбелки сульфатной целлюлозы

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026068A (en) * 1929-09-11 1935-12-31 Du Pont Process for the improvement of cellulose
DE753531C (de) * 1938-11-09 1953-05-18 Degussa Verfahren zum Bleichen von Zellstoff

Also Published As

Publication number Publication date
IT1109111B (it) 1985-12-16
FI68273C (fi) 1985-08-12
FI68273B (fi) 1985-04-30
GB2005743B (en) 1982-03-03
SE7809831L (sv) 1979-03-21
ATA675678A (de) 1981-12-15
BE870607A (fr) 1979-03-19
FI782869A7 (fi) 1979-03-21
IT7869162A0 (it) 1978-09-19
ES472687A1 (es) 1979-02-16
GB2005743A (en) 1979-04-25
AR218936A1 (es) 1980-07-15
FR2403418B1 (de) 1982-07-02
DE2742262C2 (de) 1982-06-09
NO782820L (no) 1979-03-21
DE2742262A1 (de) 1979-03-29
CH638003A5 (de) 1983-08-31
CA1133660A (en) 1982-10-19
NO153978B (no) 1986-03-17
FR2403418A1 (fr) 1979-04-13
AT367812B (de) 1982-08-10
NO153978C (no) 1986-06-25
BR7806050A (pt) 1979-05-02
JPS5455606A (en) 1979-05-02

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