AU547453B2 - Delignifying lignocellulosic material - Google Patents

Delignifying lignocellulosic material

Info

Publication number: AU547453B2
Authority: AU; Australia
Prior art keywords: lignocellulosic material; delignifying lignocellulosic; delignifying; lignocellulosic
Prior art date: 1980-09-25
Legal status (The legal status 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 status listed.): Ceased

Application number

AU75642/81A

Other versions

AU7564281A (en

Inventor

Dieter Werthemann

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Novartis AG

Original Assignee

Ciba Geigy AG

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.)

1980-09-25

Filing date

1981-09-24

Publication date

1985-10-24

1981-09-24 Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG

1982-04-01 Publication of AU7564281A publication Critical patent/AU7564281A/en

1985-10-24 Application granted granted Critical

1985-10-24 Publication of AU547453B2 publication Critical patent/AU547453B2/en

2001-09-24 Anticipated expiration legal-status Critical

Status Ceased legal-status Critical Current

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

AU75642/81A 1980-09-25 1981-09-24 Delignifying lignocellulosic material Ceased AU547453B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH7183/80		1980-09-25
CH718380		1980-09-25

Publications (2)

Publication Number	Publication Date
AU7564281A AU7564281A (en)	1982-04-01
AU547453B2 true AU547453B2 (en)	1985-10-24

Family

ID=4321202

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU75642/81A Ceased AU547453B2 (en)	1980-09-25	1981-09-24	Delignifying lignocellulosic material

Country Status (9)

Country	Link
EP (1)	EP0049221B1 (en)
JP (1)	JPS5789691A (en)
AU (1)	AU547453B2 (en)
BR (1)	BR8106122A (en)
CA (1)	CA1174810A (en)
DE (1)	DE3161711D1 (en)
FI (1)	FI69654C (en)
NO (1)	NO813257L (en)
ZA (1)	ZA816637B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6702921B2 (en) *	2001-05-01	2004-03-09	Ondeo Nalco Company	Methods to enhance pulp bleaching and delignification using an organic sulfide chelating agent
US7351764B2 (en)	2004-03-31	2008-04-01	Nalco Company	Methods to enhance brightness of pulp and optimize use of bleaching chemicals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1097463A (en) *	1976-12-13	1981-03-17	Naphtali N. Vanderhoek	Pulping processes
US4248663A (en) *	1978-07-05	1981-02-03	Pulp And Paper Research Institute Of Canada	Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound

1981
- 1981-09-21 EP EP81810386A patent/EP0049221B1/en not_active Expired
- 1981-09-21 FI FI812935A patent/FI69654C/en not_active IP Right Cessation
- 1981-09-21 DE DE8181810386T patent/DE3161711D1/en not_active Expired
- 1981-09-23 CA CA000386480A patent/CA1174810A/en not_active Expired
- 1981-09-24 ZA ZA816637A patent/ZA816637B/en unknown
- 1981-09-24 BR BR8106122A patent/BR8106122A/en unknown
- 1981-09-24 AU AU75642/81A patent/AU547453B2/en not_active Ceased
- 1981-09-24 NO NO813257A patent/NO813257L/en unknown
- 1981-09-25 JP JP56150805A patent/JPS5789691A/en active Pending

Also Published As

Publication number	Publication date
CA1174810A (en)	1984-09-25
FI69654B (en)	1985-11-29
DE3161711D1 (en)	1984-01-26
ZA816637B (en)	1982-09-29
FI69654C (en)	1986-03-10
BR8106122A (en)	1982-06-15
EP0049221B1 (en)	1983-12-21
JPS5789691A (en)	1982-06-04
AU7564281A (en)	1982-04-01
NO813257L (en)	1982-03-26
FI812935L (en)	1982-03-26
EP0049221A1 (en)	1982-04-07

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