FI751443A - - Google Patents

Info

Publication number: FI751443A
Authority: FI; Finland

Application number

FI751443A

Other languages

Finnish (fi)

Other versions

FI61925C (fi

FI61925B (fi

Inventor

Nils Viktor Mannbro

Original Assignee

Skogsaegarnas Ind 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.)

1974-05-16

Filing date

1975-05-15

Publication date

1975-11-17

1975-05-15 Application filed by Skogsaegarnas Ind Ab filed Critical Skogsaegarnas Ind Ab

1975-11-17 Publication of FI751443A publication Critical patent/FI751443A/fi

1982-06-30 Application granted granted Critical

1982-06-30 Publication of FI61925B publication Critical patent/FI61925B/fi

1982-10-11 Publication of FI61925C publication Critical patent/FI61925C/fi

Links

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
- D21C9/1026—Other features in bleaching processes
- 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

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

FI751443A 1974-05-16 1975-05-15 Saett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tvao eller flera steg varav det sista med syrgas FI61925C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE7406537A SE394466C (sv)	1974-05-16	1974-05-16	Sett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tva eller flera steg, varav det sista med syrgas
SE7406537		1974-05-16

Publications (3)

Publication Number	Publication Date
FI751443A true FI751443A (pt)	1975-11-17
FI61925B FI61925B (fi)	1982-06-30
FI61925C FI61925C (fi)	1982-10-11

Family

ID=20321136

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI751443A FI61925C (fi)	1974-05-16	1975-05-15	Saett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tvao eller flera steg varav det sista med syrgas

Country Status (6)

Country	Link
US (1)	US4155806A (pt)
JP (1)	JPS6012477B2 (pt)
BR (1)	BR7502958A (pt)
CA (1)	CA1035104A (pt)
FI (1)	FI61925C (pt)
SE (1)	SE394466C (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4274913A (en) *	1978-05-23	1981-06-23	Toyo Pulp Co., Ltd.	Process for producing alkali pulp
SE412771C (sv) *	1978-07-27	1981-07-13	Obbola Linerboard Ab	Sett vid satsvis kokning av cellulosamaterial for att tillvarata verme- och terpentininnehall i blasanga
US4436586A (en)	1982-01-22	1984-03-13	Kamyr, Inc.	Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
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
US5525195A (en) *	1989-02-15	1996-06-11	Union Camp Patent Holding, Inc.	Process for high consistency delignification using a low consistency alkali pretreatment
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
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
US5472572A (en) *	1990-10-26	1995-12-05	Union Camp Patent Holding, Inc.	Reactor for bleaching high consistency pulp with ozone
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
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
US5188708A (en) *	1989-02-15	1993-02-23	Union Camp Patent Holding, Inc.	Process for high consistency oxygen delignification followed by ozone relignification
US5181989A (en) *	1990-10-26	1993-01-26	Union Camp Patent Holdings, Inc.	Reactor for bleaching high consistency pulp with ozone
US5053108A (en) *	1989-06-28	1991-10-01	Kamyr Ab	High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips
US5164044A (en) *	1990-05-17	1992-11-17	Union Camp Patent Holding, Inc.	Environmentally improved process for bleaching lignocellulosic materials with ozone
US5441603A (en) *	1990-05-17	1995-08-15	Union Camp Patent Holding, Inc.	Method for chelation of pulp prior to ozone delignification
US5164043A (en) *	1990-05-17	1992-11-17	Union Camp Patent Holding, Inc.	Environmentally improved process for bleaching lignocellulosic materials with ozone
US5174861A (en) *	1990-10-26	1992-12-29	Union Camp Patent Holdings, Inc.	Method of bleaching high consistency pulp with ozone
US5520783A (en) *	1990-10-26	1996-05-28	Union Camp Patent Holding, Inc.	Apparatus for bleaching high consistency pulp with ozone
NZ242792A (en) *	1991-05-24	1993-12-23	Union Camp Patent Holding	Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.
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
US5672247A (en) *	1995-03-03	1997-09-30	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
US5736004A (en) *	1995-03-03	1998-04-07	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
US5728265A (en) *	1995-06-12	1998-03-17	Henkel Corporation	Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane
US7815741B2 (en)	2006-11-03	2010-10-19	Olson David A	Reactor pump for catalyzed hydrolytic splitting of cellulose
US7815876B2 (en)	2006-11-03	2010-10-19	Olson David A	Reactor pump for catalyzed hydrolytic splitting of cellulose
US20110281298A1 (en) *	2010-05-11	2011-11-17	Andritz Inc.	Method and apparatus to extracted and reduce dissolved hemi-cellulosic solids in biomass following pre-hydrolysis
SE539501C2 (sv) *	2014-10-31	2017-10-03	Valmet Oy	Method and arrangement for discharge dilution

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB945957A (en) *	1960-02-08	1964-01-08	Ass Pulp & Paper Mills	Continuous pulping process
US3413189A (en) *	1964-01-29	1968-11-26	Kamyr Ab	Method of performing hydrolysis and alkalic digestion of cellulosic fiber material with prevention of lignin precipitation
US3679543A (en) *	1970-08-18	1972-07-25	Calgon Corp	Controlling the cooking process in pulp digestion by differential conductivity measurements
SE360128C (sv) *	1970-08-25	1983-10-31	Mo Och Domsjoe Ab	Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
US3830688A (en) *	1970-10-23	1974-08-20	Skogsaegarnas Ind Ab	Method of reducing the discharge of waste products from pulp mills
SE373397C (sv) *	1972-03-30	1984-02-06	Mo Och Domsjoe Ab	Sett att forbettra blekningsforloppet vid bleknig av cellulosamassa med en syre innehallande gas
US3832276A (en) *	1973-03-07	1974-08-27	Int Paper Co	Delignification and bleaching of a cellulose pulp slurry with oxygen

1974
- 1974-05-16 SE SE7406537A patent/SE394466C/xx not_active IP Right Cessation
1975
- 1975-05-02 CA CA226,135A patent/CA1035104A/en not_active Expired
- 1975-05-06 US US05/574,908 patent/US4155806A/en not_active Expired - Lifetime
- 1975-05-14 BR BR3763/75A patent/BR7502958A/pt unknown
- 1975-05-15 FI FI751443A patent/FI61925C/fi not_active IP Right Cessation
- 1975-05-16 JP JP50058466A patent/JPS6012477B2/ja not_active Expired

Also Published As

Publication number	Publication date
SE394466C (sv)	1986-06-23
SE7406537L (sv)	1975-11-17
US4155806A (en)	1979-05-22
JPS6012477B2 (ja)	1985-04-01
SE394466B (sv)	1977-06-27
FI61925C (fi)	1982-10-11
JPS5129501A (en)	1976-03-12
BR7502958A (pt)	1976-03-23
CA1035104A (en)	1978-07-25
FI61925B (fi)	1982-06-30

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: MANNBRO SYSTEMS HANDELSBOLAG

Publication	Publication Date	Title
FI751443A (pt)	1975-11-17
FR2264908A1 (pt)	1975-10-17
FR2264895A1 (pt)	1975-10-17
JPS50101337A (pt)	1975-08-11
JPS50102965A (pt)	1975-08-14
DK142184C (pt)	1981-02-09
JPS50105042U (pt)	1975-08-29
JPS50122216A (pt)	1975-09-25
JPS50108646A (pt)	1975-08-27
AR199810A1 (pt)	1974-09-30
JPS50123779U (pt)	1975-10-09
JPS50123976A (pt)	1975-09-29
JPS50125266A (pt)	1975-10-02
JPS50128228A (pt)	1975-10-09
BG22061A3 (pt)	1976-11-25
CH1666774A4 (pt)	1977-01-31
BG20947A1 (pt)	1976-01-20
BG20994A1 (pt)	1976-01-20
BG21067A1 (pt)	1976-03-20
BG21312A1 (pt)	1976-05-20
BG21341A1 (pt)	1976-05-20
BG21690A2 (pt)	1976-09-20
BG21760A1 (pt)	1976-09-20
CH568428B5 (pt)	1975-10-31
BG22084A3 (pt)	1976-11-25