FI905482A0 - Methods of producing mechanical and chemical mechanical pulp - Google Patents

Methods of producing mechanical and chemical mechanical pulp

Info

Publication number: FI905482A0
Authority: FI; Finland
Prior art keywords: mechanical; methods; producing; pulp; chemical mechanical
Prior art date: 1988-05-06

Application number

FI905482A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI91787B (en

FI91787C (en

Inventor

Per Engstrand

Lars-Aoke Hammar

Myat Htun

Rune Pettersson

Boerje Svensson

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.)

1988-05-06

Filing date

1990-11-05

Publication date

1990-11-05

1990-11-05 Application filed by Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst

1990-11-05 Publication of FI905482A0 publication Critical patent/FI905482A0/en

1994-04-29 Publication of FI91787B publication Critical patent/FI91787B/en

1994-08-10 Application granted granted Critical

1994-08-10 Publication of FI91787C publication Critical patent/FI91787C/en

Links

Classifications

- 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
- 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)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
Mechanical Engineering (AREA)
Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Paper (AREA)

FI905482A 1988-05-06 1990-11-05 Method for producing mechanical and chemimechanical pulp FI91787C (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
SE8801731		1988-05-06
SE8801731A SE461103B (en)	1988-05-06	1988-05-06	PREPARATION OF MECHANICAL AND CHEMICAL MECHANICS IN TWO STEPS
SE8900172		1989-04-05
PCT/SE1989/000172 WO1989010998A1 (en)	1988-05-06	1989-04-05	Method of making mechanical and chemi-mechanical papermaking pulp

Publications (3)

Publication Number	Publication Date
FI905482A0 true FI905482A0 (en)	1990-11-05
FI91787B FI91787B (en)	1994-04-29
FI91787C FI91787C (en)	1994-08-10

Family

ID=20372264

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI905482A FI91787C (en)	1988-05-06	1990-11-05	Method for producing mechanical and chemimechanical pulp

Country Status (7)

Country	Link
EP (1)	EP0413736B1 (en)
JP (1)	JPH03504256A (en)
CA (1)	CA1320067C (en)
DE (1)	DE68909231T2 (en)
FI (1)	FI91787C (en)
SE (1)	SE461103B (en)
WO (1)	WO1989010998A1 (en)

Families Citing this family (5)

* 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
US5853534A (en) *	1992-12-30	1998-12-29	Sunds Defibrator Industries Ab	Method of producing pulp with high yield using a two-stage refining system operating at different temperatures
US6899791B2 (en)	1997-08-08	2005-05-31	Andritz Inc.	Method of pretreating lignocellulose fiber-containing material in a pulp refining process
US8734611B2 (en) *	2008-03-12	2014-05-27	Andritz Inc.	Medium consistency refining method of pulp and system
SE540961C2 (en) *	2016-05-23	2019-01-29	Holmen Ab	Method of providing a paper fibre composition by combining chemical and mechanical pulping

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE409476B (en) *	1978-02-17	1979-08-20	Sca Development Ab	KIT FOR REFINING LIGNOCELLULOSE-MATERIAL
JPS564791A (en) *	1979-06-18	1981-01-19	Kogyo Gijutsuin	Bleaching of mechanical pulp
CA1246374A (en) *	1983-10-24	1988-12-13	Steve Rowland	Two stage high consistency refiner
SE456826B (en) *	1986-04-18	1988-11-07	Svenska Traeforskningsinst	SET TO REDUCE ENERGY CONSUMPTION BY REFINING CELLULOSALLY MATERIAL

1988
- 1988-05-06 SE SE8801731A patent/SE461103B/en not_active IP Right Cessation
1989
- 1989-04-05 JP JP50517689A patent/JPH03504256A/en active Pending
- 1989-04-05 DE DE89905472T patent/DE68909231T2/en not_active Expired - Fee Related
- 1989-04-05 EP EP19890905472 patent/EP0413736B1/en not_active Expired - Lifetime
- 1989-04-05 WO PCT/SE1989/000172 patent/WO1989010998A1/en active IP Right Grant
- 1989-05-02 CA CA000598482A patent/CA1320067C/en not_active Expired - Fee Related
1990
- 1990-11-05 FI FI905482A patent/FI91787C/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
FI91787B (en)	1994-04-29
WO1989010998A1 (en)	1989-11-16
CA1320067C (en)	1993-07-13
EP0413736B1 (en)	1993-09-15
FI91787C (en)	1994-08-10
SE8801731L (en)	1989-11-07
JPH03504256A (en)	1991-09-19
SE461103B (en)	1990-01-08
EP0413736A1 (en)	1991-02-27
DE68909231T2 (en)	1994-04-28
SE8801731D0 (en)	1988-05-06
DE68909231D1 (en)	1993-10-21

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Legal Events

Date	Code	Title	Description
1994-04-05	BB	Publication of examined application
1994-04-07	GB	Transfer or assigment of application	Owner name: SUNDS DEFIBRATOR INDUSTRIES AB
1998-04-05	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: SUNDS DEFIBRATOR INDUSTRIES AB