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FI874289L - Foerfarande foer framstaellning av traemassa. - Google Patents

Foerfarande foer framstaellning av traemassa. Download PDF

Info

Publication number
FI874289L
FI874289L FI874289A FI874289A FI874289L FI 874289 L FI874289 L FI 874289L FI 874289 A FI874289 A FI 874289A FI 874289 A FI874289 A FI 874289A FI 874289 L FI874289 L FI 874289L
Authority
FI
Finland
Prior art keywords
traema
foerfarande foer
foer framstaellning
framstaellning
foerfarande
Prior art date
Application number
FI874289A
Other languages
English (en)
Finnish (fi)
Other versions
FI874289A0 (fi
FI874289A7 (fi
Inventor
Terry James Fullerton
Original Assignee
Terry James Fullerton
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 Terry James Fullerton filed Critical Terry James Fullerton
Publication of FI874289A0 publication Critical patent/FI874289A0/fi
Publication of FI874289L publication Critical patent/FI874289L/fi
Publication of FI874289A7 publication Critical patent/FI874289A7/fi

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
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
FI874289A 1986-10-02 1987-09-30 Menetelmä puumassan valmistamiseksi. FI874289A7 (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ21778686 1986-10-02

Publications (3)

Publication Number Publication Date
FI874289A0 FI874289A0 (fi) 1987-09-30
FI874289L true FI874289L (fi) 1988-04-03
FI874289A7 FI874289A7 (fi) 1988-04-03

Family

ID=19921815

Family Applications (1)

Application Number Title Priority Date Filing Date
FI874289A FI874289A7 (fi) 1986-10-02 1987-09-30 Menetelmä puumassan valmistamiseksi.

Country Status (5)

Country Link
EP (1) EP0262988A3 (pt)
BR (1) BR8705254A (pt)
FI (1) FI874289A7 (pt)
PT (1) PT85862B (pt)
ZA (1) ZA877379B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6325892B1 (en) 1998-09-23 2001-12-04 University Of New Brunswick Method of delignifying sulphite pulp with oxygen and borohydride
US6464827B1 (en) * 2000-11-28 2002-10-15 Praxair Technology, Inc. Method of digesting wood with an alkaline liquor by adding an acidic agent to precipitate dissociated lignin
FI122838B (fi) 2005-03-31 2012-07-31 Metso Paper Inc Menetelmä massan valmistamiseksi lignoselluloosamateriaalista
US20070240837A1 (en) * 2006-04-13 2007-10-18 Andritz Inc. Hardwood alkaline pulping processes and systems
AR091998A1 (es) * 2012-05-03 2015-03-18 Annikki Gmbh Procedimiento de preparacion de celulosa con baja concentracion de lignina
CN115976865A (zh) * 2021-10-14 2023-04-18 中国科学院大连化学物理研究所 一种化学法制备木质纤维素本色浆联产木质素磺酸盐的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651665A (en) * 1927-12-06 And edward p
US2528351A (en) * 1950-08-17 1950-10-31 Hardwood By Products Inc Alkaline sulfite digestion of hardwood
FR2357490A1 (fr) * 1976-07-06 1978-02-03 Eparco Sa Activateur biologique pour fosses septiques
CA1110413A (en) * 1977-12-14 1981-10-13 Oji Paper Co., Ltd. Process for pulping lignocellulosic material
JPS55163291A (en) * 1979-05-31 1980-12-19 Oji Paper Co Alkaline sulfite pulping method
JPS56118988A (en) * 1980-02-18 1981-09-18 Oji Paper Co Alkali sulfite pulping method

Also Published As

Publication number Publication date
EP0262988A3 (en) 1988-06-29
BR8705254A (pt) 1988-05-24
PT85862B (en) 1990-01-12
PT85862A (en) 1987-11-01
FI874289A0 (fi) 1987-09-30
EP0262988A2 (en) 1988-04-06
FI874289A7 (fi) 1988-04-03
ZA877379B (en) 1989-04-26

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: FULLERTON, TERRY JAMES