JPS5024503A - - Google Patents

Info

Publication number: JPS5024503A
Authority: JP; Japan
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.): Granted

Application number

JP49026701A

Other languages

Other versions

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.)

1973-03-07

Filing date

1974-03-07

Publication date

1975-03-15

1974-03-07 Application filed filed Critical

1975-03-15 Publication of JPS5024503A publication Critical patent/JPS5024503A/ja

1982-10-12 Publication of JPS5747798B2 publication Critical patent/JPS5747798B2/ja

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
- D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Cereal-Derived Products (AREA)
Coloring Foods And Improving Nutritive Qualities (AREA)

JP49026701A 1973-03-07 1974-03-07 Expired JPS5747798B2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US00338862A US3832276A (en)	1973-03-07	1973-03-07	Delignification and bleaching of a cellulose pulp slurry with oxygen

Publications (2)

Publication Number	Publication Date
JPS5024503A true JPS5024503A (de)	1975-03-15
JPS5747798B2 JPS5747798B2 (de)	1982-10-12

Family

ID=23326465

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP49026701A Expired JPS5747798B2 (de)	1973-03-07	1974-03-07

Country Status (14)

Country	Link
US (1)	US3832276A (de)
JP (1)	JPS5747798B2 (de)
AR (1)	AR202919A1 (de)
BR (1)	BR7401573D0 (de)
CA (1)	CA1007807A (de)
DE (1)	DE2410934C2 (de)
FI (1)	FI59434C (de)
FR (1)	FR2220620B1 (de)
GB (1)	GB1445276A (de)
IT (1)	IT1011546B (de)
NO (1)	NO144930C (de)
PH (1)	PH10177A (de)
SE (1)	SE397983B (de)
ZA (1)	ZA741287B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5020004A (de) *	1973-05-30	1975-03-03

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4089737A (en) *	1974-02-18	1978-05-16	Toyo Pulp Company, Ltd.	Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein
SE394466C (sv) *	1974-05-16	1986-06-23	Mannbro Systems Handelsbolag	Sett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tva eller flera steg, varav det sista med syrgas
US3951733A (en) *	1974-11-06	1976-04-20	International Paper Company	Delignification and bleaching of wood pulp with oxygen
US4002526A (en) *	1975-10-10	1977-01-11	International Paper Company	Oxygen-alkali delignification of low consistency wood pulp
AU3102077A (en) *	1976-12-01	1979-06-07	New Zealand Dev Finance	Treating lignocellulosic or cellulosic pulp
US4216054A (en) *	1977-09-26	1980-08-05	Weyerhaeuser Company	Low-consistency ozone delignification
US4198266A (en) *	1977-10-12	1980-04-15	Airco, Inc.	Oxygen delignification of wood pulp
US4209359A (en) *	1978-10-23	1980-06-24	International Paper Company	Process for removing residual oxygen from oxygen-bleached pulp
US4259150A (en) *	1978-12-18	1981-03-31	Kamyr Inc.	Plural stage mixing and thickening oxygen bleaching process
SE462919B (sv) *	1979-05-11	1990-09-17	Sunds Defibrator Ind Ab	Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
US4295926A (en) *	1979-06-15	1981-10-20	Weyerhaeuser Company	Method and apparatus for treating pulp with oxygen
US4295925A (en) *	1979-06-15	1981-10-20	Weyerhaeuser Company	Treating pulp with oxygen
US4295927A (en) *	1979-06-15	1981-10-20	Weyerhaeuser Company	Method and apparatus for treating pulp with oxygen and storing the treated pulp
US4294654A (en) *	1980-03-21	1981-10-13	International Paper Company	Delignification and bleaching of lignocellulosic pulp via photo-oxygenation
SE421019B (sv) *	1980-08-26	1981-11-16	Kamyr Ab	Forfarande for kemikaliereglering vid behandling av en substans, speciellt massa, med gas
US4384920A (en) *	1981-04-06	1983-05-24	The Black Clawson Company	Method and apparatus for oxygen delignification
FI67241B (fi) *	1981-06-10	1984-10-31	Aga Ab	Saett foer blekning av cellulosahaltiga material
BR8109040A (pt) *	1981-09-04	1983-09-06	Weyerhaeuser Co	Tratamento de polpa com oxigenio
EP0088073A4 (de) *	1981-09-04	1984-01-09	Weyerhaeuser Co	Verfahren zum behandeln von pulpe mit mehreren sauerstoffstufen.
DE3207157C1 (de) *	1982-02-27	1983-06-09	Degussa Ag, 6000 Frankfurt	Verfahren zur Herstellung von halbgebleichten Zellstoffen
US4684442A (en) *	1984-03-29	1987-08-04	Weyerhaeuser Company	Oxygen reactor deaeration tank and system
FR2566015B1 (fr) *	1984-06-15	1986-08-29	Centre Tech Ind Papier	Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
FI71178C (fi) *	1984-11-08	1988-05-18	Rauma Repola Oy	Foerfarande foer reglering av syreblekningsprocess.
US4568420B1 (en) *	1984-12-03	1999-03-02	Int Paper Co	Multi-stage bleaching process including an enhanced oxidative extraction stage
WO1986005708A1 (en) *	1985-04-01	1986-10-09	Weyerhaeuser Company	A deaeration tank and process for using the tank
US4886577A (en) *	1985-05-03	1989-12-12	Kamyr, Inc.	Method and apparatus for mixing oxygen gas with medium consistency pulp in a pump discharge
US4978426A (en) *	1987-02-24	1990-12-18	Westvaco Corporation	Production of high strength linerboard with oxygen and alkali
US5525195A (en) *	1989-02-15	1996-06-11	Union Camp Patent Holding, Inc.	Process for high consistency delignification using a low consistency alkali pretreatment
US5181989A (en) *	1990-10-26	1993-01-26	Union Camp Patent Holdings, Inc.	Reactor for bleaching high consistency pulp with ozone
US5211811A (en) *	1989-02-15	1993-05-18	Union Camp Patent Holding, Inc.	Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5409570A (en) *	1989-02-15	1995-04-25	Union Camp Patent Holding, Inc.	Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5472572A (en) *	1990-10-26	1995-12-05	Union Camp Patent Holding, Inc.	Reactor for bleaching high consistency pulp with ozone
US5173153A (en) *	1991-01-03	1992-12-22	Union Camp Patent Holding, Inc.	Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5085734A (en) *	1989-02-15	1992-02-04	Union Camp Patent Holding, Inc.	Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5188708A (en) *	1989-02-15	1993-02-23	Union Camp Patent Holding, Inc.	Process for high consistency oxygen delignification followed by ozone relignification
US5217574A (en) *	1989-02-15	1993-06-08	Union Camp Patent Holdings Inc.	Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
FI89516B (fi) *	1989-05-10	1993-06-30	Ahlstroem Oy	Foerfarande foer blekning av cellulosamassa med otson
WO1991000386A1 (en) *	1989-06-30	1991-01-10	Nekoosa Papers, Inc.	A method for bleaching kraft pulp with a mixture of oxygen and peroxide
US5164044A (en) *	1990-05-17	1992-11-17	Union Camp Patent Holding, Inc.	Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164043A (en) *	1990-05-17	1992-11-17	Union Camp Patent Holding, Inc.	Environmentally improved process for bleaching lignocellulosic materials with ozone
US5520783A (en) *	1990-10-26	1996-05-28	Union Camp Patent Holding, Inc.	Apparatus for bleaching high consistency pulp with ozone
US5174861A (en) *	1990-10-26	1992-12-29	Union Camp Patent Holdings, Inc.	Method of bleaching high consistency pulp with ozone
ES2106848T5 (es) *	1991-05-24	2001-09-01	Union Camp Patent Holding	Metodo de blanqueo con ozono.
CA2082557C (en) *	1992-02-24	1997-03-11	Charles W. Hankins	Integrated pulping process of waste paper yielding tissue-grade paper fibers
US5387317A (en) *	1993-01-28	1995-02-07	The Mead Corporation	Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
US6340409B1 (en) *	1993-04-29	2002-01-22	Lewis Donald Shackford	Method for multistage bleaching using gaseous reagent in the first stage with controlled gas release
US5554259A (en) *	1993-10-01	1996-09-10	Union Camp Patent Holdings, Inc.	Reduction of salt scale precipitation by control of process stream Ph and salt concentration
US7812153B2 (en) *	2004-03-11	2010-10-12	Rayonier Products And Financial Services Company	Process for manufacturing high purity xylose

1973
- 1973-03-07 US US00338862A patent/US3832276A/en not_active Expired - Lifetime
1974
- 1974-02-12 CA CA192,339A patent/CA1007807A/en not_active Expired
- 1974-02-27 ZA ZA00741287A patent/ZA741287B/xx unknown
- 1974-02-28 GB GB921874A patent/GB1445276A/en not_active Expired
- 1974-03-05 BR BR1573/74A patent/BR7401573D0/pt unknown
- 1974-03-05 FI FI649/74A patent/FI59434C/fi active
- 1974-03-06 NO NO740795A patent/NO144930C/no unknown
- 1974-03-06 SE SE7402968A patent/SE397983B/xx not_active IP Right Cessation
- 1974-03-07 IT IT67618/74A patent/IT1011546B/it active
- 1974-03-07 PH PH15590*A patent/PH10177A/en unknown
- 1974-03-07 FR FR7407858A patent/FR2220620B1/fr not_active Expired
- 1974-03-07 DE DE2410934A patent/DE2410934C2/de not_active Expired
- 1974-03-07 JP JP49026701A patent/JPS5747798B2/ja not_active Expired
1975
- 1975-01-01 AR AR20291975D patent/AR202919A1/es active

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5020004A (de) *	1973-05-30	1975-03-03
JPS5322565B2 (de) *	1973-05-30	1978-07-10

Also Published As

Publication number	Publication date
FR2220620A1 (de)	1974-10-04
US3832276A (en)	1974-08-27
NO740795L (no)	1974-09-10
DE2410934C2 (de)	1983-12-01
BR7401573D0 (pt)	1974-11-05
DE2410934A1 (de)	1974-09-19
NO144930C (no)	1981-12-09
IT1011546B (it)	1977-02-10
CA1007807A (en)	1977-04-05
FI59434C (fi)	1983-07-04
FI59434B (fi)	1981-04-30
NO144930B (no)	1981-08-31
PH10177A (en)	1976-09-16
SE397983B (sv)	1977-11-28
FR2220620B1 (de)	1978-04-21
AU6602374A (en)	1975-08-28
AR202919A1 (es)	1975-07-31
ZA741287B (en)	1975-02-26
JPS5747798B2 (de)	1982-10-12
GB1445276A (en)	1976-08-11

Publication	Publication Date	Title
AU476761B2 (de)	1976-09-30
FR2220620B1 (de)	1978-04-21
AU474593B2 (de)	1976-07-29
AU474511B2 (de)	1976-07-22
AU474838B2 (de)	1976-08-05
AU471343B2 (de)	1976-04-15
AU476714B2 (de)	1976-09-30
AU476696B2 (de)	1976-09-30
AU472848B2 (de)	1976-06-03
AU466283B2 (de)	1975-10-23
AU477823B2 (de)	1975-06-19
AU471461B2 (de)	1976-04-29
AU477824B2 (de)	1975-07-17
AU476873B1 (de)	1975-01-09
CH563876A5 (de)	1975-07-15
AU479405A (de)	1975-04-10
BG20026A1 (de)	1975-10-30
BG19414A1 (de)	1975-06-25
AU482360A (de)	1975-03-13
AU482190A (de)	1975-03-20
AU481057A (de)	1975-05-29
AU479562A (de)	1975-01-09
AU479539A (de)	1975-01-30
AU479522A (de)	1975-06-12
AU479521A (de)	1975-06-05