FI922025A0 - METHOD FOR FRAMSTAELLNING AV CELLULOSAMA. - Google Patents

METHOD FOR FRAMSTAELLNING AV CELLULOSAMA.

Info

Publication number: FI922025A0
Authority: FI; Finland
Prior art keywords: cellulosama; framstaellning
Prior art date: 1989-11-06

Application number

FI922025A

Other languages

Finnish (fi)

Other versions

FI922025L (en

FI922025A7 (en

Inventor

Per Engstrand

Lars-Aoke Hammar

Birger Sjoegren

Boerje Svensson

Myat Htun

Original Assignee

Svenska Traeforskningsinst

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.)

1989-11-06

Filing date

1990-11-06

Publication date

1992-05-05

1990-11-06 Application filed by Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst

1992-05-05 Publication of FI922025L publication Critical patent/FI922025L/en

1992-05-05 Publication of FI922025A7 publication Critical patent/FI922025A7/en

1992-05-05 Publication of FI922025A0 publication Critical patent/FI922025A0/en

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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- 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
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
- 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
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Mechanical Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)

FI922025A 1989-11-06 1990-11-06 METHOD FOR FRAMSTAELLNING AV CELLULOSAMA. FI922025A0 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8903710A SE8903710D0 (en)	1989-11-06	1989-11-06	SET TO MAKE CELLULOUS MASS
PCT/SE1990/000721 WO1991006700A1 (en)	1989-11-06	1990-11-06	A method of producing cellulosic pulp

Publications (3)

Publication Number	Publication Date
FI922025L FI922025L (en)	1992-05-05
FI922025A7 FI922025A7 (en)	1992-05-05
FI922025A0 true FI922025A0 (en)	1992-05-05

Family

ID=20377391

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI922025A FI922025A0 (en)	1989-11-06	1990-11-06	METHOD FOR FRAMSTAELLNING AV CELLULOSAMA.

Country Status (8)

Country	Link
EP (1)	EP0500674A1 (en)
JP (1)	JPH05503965A (en)
AU (1)	AU638511B2 (en)
BR (1)	BR9007815A (en)
CA (1)	CA2073048A1 (en)
FI (1)	FI922025A0 (en)
SE (1)	SE8903710D0 (en)
WO (1)	WO1991006700A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE9002039D0 (en) *	1990-06-07	1990-06-07	Svenska Traeforskningsinst	SAVE TO PREPARE
SE0203673D0 (en) *	2002-12-12	2002-12-12	Skogsind Tekn Foskningsinst	Method of treatment of pulp
FI120651B (en) *	2007-04-30	2010-01-15	Linde Ag	A method for reducing energy consumption during pulping of pulp suspension in a papermaking process
US8282773B2 (en) *	2007-12-14	2012-10-09	Andritz Inc.	Method and system to enhance fiber development by addition of treatment agent during mechanical pulping
US8293696B2 (en)	2009-02-06	2012-10-23	Ecolab, Inc.	Alkaline composition comprising a chelant mixture, including HEIDA, and method of producing same
SE537483C2 (en) *	2012-03-23	2015-05-19	Valmet Oy	Method and apparatus for cleaning lignocellulosic material during impregnation
FI127062B (en) *	2014-11-18	2017-10-31	Upm Kymmene Corp	Method and apparatus for mass production

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE416481B (en) *	1977-05-02	1981-01-05	Mo Och Domsjoe Ab	METHOD AND DEVICE FOR TREATMENT OF WOOD TIP FOR REMOVAL OF HEAVY METALS AND RESIN
GB1581591A (en) *	1977-05-17	1980-12-17	Hsc Widney Eng Ltd	Stay devices for use in roof hatch or roof ventilator assemblies for vehicles

1989
- 1989-11-06 SE SE8903710A patent/SE8903710D0/en unknown
1990
- 1990-11-06 WO PCT/SE1990/000721 patent/WO1991006700A1/en not_active Ceased
- 1990-11-06 AU AU67205/90A patent/AU638511B2/en not_active Expired - Fee Related
- 1990-11-06 EP EP19900916835 patent/EP0500674A1/en not_active Withdrawn
- 1990-11-06 CA CA002073048A patent/CA2073048A1/en not_active Abandoned
- 1990-11-06 JP JP2515476A patent/JPH05503965A/en active Pending
- 1990-11-06 FI FI922025A patent/FI922025A0/en not_active Application Discontinuation
- 1990-11-06 BR BR909007815A patent/BR9007815A/en not_active Application Discontinuation

Also Published As

Publication number	Publication date
FI922025L (en)	1992-05-05
SE8903710D0 (en)	1989-11-06
AU6720590A (en)	1991-05-31
WO1991006700A1 (en)	1991-05-16
EP0500674A1 (en)	1992-09-02
BR9007815A (en)	1992-08-25
FI922025A7 (en)	1992-05-05
JPH05503965A (en)	1993-06-24
CA2073048A1 (en)	1991-05-07
AU638511B2 (en)	1993-07-01

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Legal Events

Date	Code	Title	Description
1994-05-30	FD	Application lapsed