AT378378B - Verfahren zur herstellung von zellulosemassen aus holz nach der sulfatmethode - Google Patents

Verfahren zur herstellung von zellulosemassen aus holz nach der sulfatmethode

Info

Publication number: AT378378B
Authority: AT; Austria
Prior art keywords: wood; producing cellulose; sulfate; masses; cellulose masses
Prior art date: 1981-10-27

Application number

AT0390882A

Other languages

English (en)

Other versions

ATA390882A (de

Inventor

Hans Olof Samuelson

Erik Olof Sture Ing 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

1982-10-25

Publication date

1985-07-25

1982-10-25 Application filed by Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab

1984-12-15 Publication of ATA390882A publication Critical patent/ATA390882A/de

1985-07-25 Application granted granted Critical

1985-07-25 Publication of AT378378B publication Critical patent/AT378378B/de

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

AT0390882A 1981-10-27 1982-10-25 Verfahren zur herstellung von zellulosemassen aus holz nach der sulfatmethode AT378378B (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number	Publication Date
ATA390882A ATA390882A (de)	1984-12-15
AT378378B true AT378378B (de)	1985-07-25

Family

ID=20344889

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT0390882A AT378378B (de)	1981-10-27	1982-10-25	Verfahren zur herstellung von zellulosemassen aus holz nach der sulfatmethode

Country Status (11)

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

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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE204460C (de) *
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2733992A (en) *		1956-02-07		reyerson
GB438436A (en) *	1934-05-16	1935-11-18	Henry Dreyfus	Improvements in the production of cellulose and cellulosic products
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE204460C (de) *
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

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 (de)	1989-10-19
ATA390882A (de)	1984-12-15
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
FI823559L (fi)	1983-04-28
JPH028074B2 (de)	1990-02-22

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Legal Events

Date	Code	Title	Description
1996-10-15	ELJ	Ceased due to non-payment of the annual fee