FI823559L - Foerfarande foer framstaellning av cellulosamassa av ved enligt sulfatmetoden - Google Patents

Foerfarande foer framstaellning av cellulosamassa av ved enligt sulfatmetoden

Info

Publication number: FI823559L
Authority: FI; Finland
Prior art keywords: sulfatmetoden; framstation; enligt; ved; cellulose
Prior art date: 1981-10-27

Application number

FI823559A

Other languages

English (en)

Other versions

FI70266B (fi

FI70266C (fi

FI823559A0 (fi

Inventor

Hans Olof Samuelson

Erik Olof Sture Haegglund

Original Assignee

Mo Och Domsjoe Ab

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.)

1981-10-27

Filing date

1982-10-18

Publication date

1983-04-28

1982-10-18 Application filed by Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab

1982-10-18 Publication of FI823559A0 publication Critical patent/FI823559A0/fi

1983-04-28 Publication of FI823559L publication Critical patent/FI823559L/fi

1986-02-28 Publication of FI70266B publication Critical patent/FI70266B/fi

1986-09-15 Application granted granted Critical

1986-09-15 Publication of FI70266C publication Critical patent/FI70266C/fi

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

FI823559A 1981-10-27 1982-10-18 Foerfarande foer framstaellning av cellulosamassa av ved enligt sulfatmetoden FI70266C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8106326A SE450393B (sv)	1981-10-27	1981-10-27	Forfarande for behandling av ved med kveveoxider och syrgas fore sulfatkokning
SE8106326		1981-10-27

Publications (4)

Publication Number	Publication Date
FI823559A0 FI823559A0 (fi)	1982-10-18
FI823559L true FI823559L (fi)	1983-04-28
FI70266B FI70266B (fi)	1986-02-28
FI70266C FI70266C (fi)	1986-09-15

Family

ID=20344889

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI823559A FI70266C (fi)	1981-10-27	1982-10-18	Foerfarande foer framstaellning av cellulosamassa av ved enligt sulfatmetoden

Country Status (11)

Country	Link
US (1)	US4750973A (fi)
JP (1)	JPS5881691A (fi)
AT (1)	AT378378B (fi)
AU (1)	AU552494B2 (fi)
CA (1)	CA1180512A (fi)
DE (1)	DE3239608A1 (fi)
FI (1)	FI70266C (fi)
FR (1)	FR2515223B1 (fi)
NO (1)	NO160384C (fi)
NZ (1)	NZ202296A (fi)
SE (1)	SE450393B (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5043488A (en) *	1990-03-12	1991-08-27	J. G. S. Research Company, Inc.	Process for preparing an explosive and the product therefrom
FI96387C (fi) *	1994-09-19	2001-12-03	Kvaerner Pulping Oy	Menetelmä typen oksidien poistamiseksi sellutehtaan savukaasuista
NZ520518A (en) *	2000-02-09	2004-02-27	Akzo Nobel Nv	Process to remove lignin from lignocellulose material by first treating with a oxygen containing delignifying gas before a mechanical pulping process
US6569285B2 (en) *	2000-02-09	2003-05-27	Akzo Nobel N.V.	Process for gas phase pretreating of lignocellulosic containing material
WO2004106624A1 (en) *	2003-06-03	2004-12-09	Pacific Pulp Resources Inc.	Method for producing pulp and lignin

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2733992A (en) *		1956-02-07		reyerson
DE204460C (fi) *
GB438436A (en) *	1934-05-16	1935-11-18	Henry Dreyfus	Improvements in the production of cellulose and cellulosic products
US4076579A (en) *	1973-08-06	1978-02-28	The Regents Of The University Of California	Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen
GB1505070A (en) *	1974-06-11	1978-03-22	Canadian Ind	Process for bleaching of lignocellulosic material

1981
- 1981-10-27 SE SE8106326A patent/SE450393B/sv not_active IP Right Cessation
1982
- 1982-09-27 AU AU88717/82A patent/AU552494B2/en not_active Ceased
- 1982-10-18 FI FI823559A patent/FI70266C/fi not_active IP Right Cessation
- 1982-10-22 JP JP57186662A patent/JPS5881691A/ja active Granted
- 1982-10-25 AT AT0390882A patent/AT378378B/de not_active IP Right Cessation
- 1982-10-26 DE DE19823239608 patent/DE3239608A1/de active Granted
- 1982-10-26 US US06/436,864 patent/US4750973A/en not_active Expired - Fee Related
- 1982-10-26 CA CA000414223A patent/CA1180512A/en not_active Expired
- 1982-10-26 NO NO823564A patent/NO160384C/no unknown
- 1982-10-27 FR FR8217974A patent/FR2515223B1/fr not_active Expired
- 1982-10-27 NZ NZ202296A patent/NZ202296A/en unknown

Also Published As

Publication number	Publication date
DE3239608A1 (de)	1983-05-05
NZ202296A (en)	1986-01-24
SE450393B (sv)	1987-06-22
FI70266B (fi)	1986-02-28
FI70266C (fi)	1986-09-15
FR2515223B1 (fr)	1986-08-22
FR2515223A1 (fr)	1983-04-29
SE8106326L (sv)	1983-04-28
NO160384C (no)	1989-04-12
CA1180512A (en)	1985-01-08
DE3239608C2 (fi)	1989-10-19
ATA390882A (de)	1984-12-15
AT378378B (de)	1985-07-25
NO823564L (no)	1983-04-28
JPS5881691A (ja)	1983-05-17
AU8871782A (en)	1983-05-05
NO160384B (no)	1989-01-02
US4750973A (en)	1988-06-14
FI823559A0 (fi)	1982-10-18
AU552494B2 (en)	1986-06-05
JPH028074B2 (fi)	1990-02-22

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Legal Events

Date	Code	Title	Description
1997-05-07	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: MO OCH DOMSJOE AKTIEBOLAG