AU2465177A - Delignification and bleaching of a lignocellulosic pulp slurry with ozone - Google Patents

Delignification and bleaching of a lignocellulosic pulp slurry with ozone

Info

Publication number: AU2465177A
Authority: AU; Australia
Prior art keywords: delignification; bleaching; ozone; pulp slurry; lignocellulosic pulp
Prior art date: 1976-06-02
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.): Expired

Application number

AU24651/77A

Other versions

AU509882B2 (en

Inventor

Arthur W Kempf

Richard B Phillips

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.)

International Paper Co

Original Assignee

International Paper Co

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.)

1976-06-02

Filing date

1977-04-28

Publication date

1978-11-02

1976-07-16 Priority claimed from US05/705,869 external-priority patent/US4080249A/en

1977-04-28 Application filed by International Paper Co filed Critical International Paper Co

1978-11-02 Publication of AU2465177A publication Critical patent/AU2465177A/en

1980-05-29 Application granted granted Critical

1980-05-29 Publication of AU509882B2 publication Critical patent/AU509882B2/en

Status Expired 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1073—Bleaching ; Apparatus therefor with O3

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Apparatus Associated With Microorganisms And Enzymes (AREA)
External Artificial Organs (AREA)

AU24651/77A 1976-06-02 1977-04-28 Delignification and bleaching with ozone Expired AU509882B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US69206276A	1976-06-02	1976-06-02
US05/705,869 US4080249A (en)	1976-06-02	1976-07-16	Delignification and bleaching of a lignocellulosic pulp slurry with ozone

Publications (2)

Publication Number	Publication Date
AU2465177A true AU2465177A (en)	1978-11-02
AU509882B2 AU509882B2 (en)	1980-05-29

Family

ID=27104896

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU24651/77A Expired AU509882B2 (en)	1976-06-02	1977-04-28	Delignification and bleaching with ozone

Country Status (9)

Country	Link
JP (1)	JPS52148204A (en)
AU (1)	AU509882B2 (en)
BR (1)	BR7703256A (en)
CA (1)	CA1090510A (en)
FI (1)	FI62362C (en)
FR (1)	FR2353674A1 (en)
NO (1)	NO771468L (en)
NZ (1)	NZ184228A (en)
SE (1)	SE415492B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2475084A1 (en) *	1979-11-23	1981-08-07	Weyerhaeuser Co	Low consistency pulp bleaching with ozone - at specific consistencies and gassed pulp mixing energies
JPS5679797A (en) *	1979-11-30	1981-06-30	Weyerhaeuser Co	Bleaching of cellulose fiber
FR2620744A1 (en) *	1987-09-17	1989-03-24	Degremont	PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD
EP0325890B1 (en) *	1988-01-25	1993-06-09	Acetocell GmbH & Co. KG	Process for treating lignin containing cellulose pulp with ozone
FI89516B (en) *	1989-05-10	1993-06-30	Ahlstroem Oy	Foerfarande Foer blekning av cellulosamassa med Otson
AU636173B2 (en) *	1989-10-30	1993-04-22	Lenzing Aktiengesellschaft	Method for the chlorine-free bleaching of pulps
JP2825346B2 (en) *	1990-05-17	1998-11-18	ユニオンキャンプコーポレイション	Environmentally improved bleaching method for lignocellulosic materials

1977
- 1977-03-04 CA CA273,237A patent/CA1090510A/en not_active Expired
- 1977-04-27 NO NO771468A patent/NO771468L/en unknown
- 1977-04-28 AU AU24651/77A patent/AU509882B2/en not_active Expired
- 1977-05-11 FI FI771500A patent/FI62362C/en not_active IP Right Cessation
- 1977-05-17 JP JP5701077A patent/JPS52148204A/en active Pending
- 1977-05-20 BR BR3256/77A patent/BR7703256A/en unknown
- 1977-05-27 NZ NZ184228A patent/NZ184228A/en unknown
- 1977-06-01 SE SE7706371A patent/SE415492B/en unknown
- 1977-06-02 FR FR7716890A patent/FR2353674A1/en not_active Withdrawn

Also Published As

Publication number	Publication date
FR2353674A1 (en)	1977-12-30
FI62362C (en)	1982-12-10
BR7703256A (en)	1978-01-31
FI62362B (en)	1982-08-31
SE415492B (en)	1980-10-06
SE7706371L (en)	1977-12-03
CA1090510A (en)	1980-12-02
FI771500A (en)	1977-12-03
JPS52148204A (en)	1977-12-09
NZ184228A (en)	1980-04-28
NO771468L (en)	1977-12-05
AU509882B2 (en)	1980-05-29

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