FI823455A0 - Foerfarande och anordning foer reglerad tillfoersel av alkaliska kemikalier till en syre-delignifieringsreaktion - Google Patents

Foerfarande och anordning foer reglerad tillfoersel av alkaliska kemikalier till en syre-delignifieringsreaktion

Info

Publication number: FI823455A0
Authority: FI; Finland
Prior art keywords: delignifieringsreaktion; syre; alkalis; chemicals; oil characteristics
Prior art date: 1981-10-27

Application number

FI823455A

Other languages

English (en)

Other versions

FI823455L (fi

Inventor

Larry D Markham

Vincent L Magnotta

Original Assignee

Black Clawson Co

Air Prod & Chem

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

1982-10-11

Publication date

1982-10-11

1982-10-11 Application filed by Black Clawson Co, Air Prod & Chem filed Critical Black Clawson Co

1982-10-11 Publication of FI823455A0 publication Critical patent/FI823455A0/fi

1983-04-28 Publication of FI823455L publication Critical patent/FI823455L/fi

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)
Detergent Compositions (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

FI823455A 1981-10-27 1982-10-11 Foerfarande och anordning foer reglerad tillfoersel av alkaliska kemikalier till en syre-delignifieringsreaktion FI823455L (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/315,672 US4431480A (en)	1981-10-27	1981-10-27	Method and apparatus for controlled addition of alkaline chemicals to an oxygen delignification reaction

Publications (2)

Publication Number	Publication Date
FI823455A0 true FI823455A0 (fi)	1982-10-11
FI823455L FI823455L (fi)	1983-04-28

Family

ID=23225539

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI823455A FI823455L (fi)	1981-10-27	1982-10-11	Foerfarande och anordning foer reglerad tillfoersel av alkaliska kemikalier till en syre-delignifieringsreaktion

Country Status (9)

Country	Link
US (1)	US4431480A (fi)
EP (1)	EP0078129A1 (fi)
JP (1)	JPS5887386A (fi)
AU (1)	AU8806982A (fi)
BR (1)	BR8206106A (fi)
CA (1)	CA1193807A (fi)
FI (1)	FI823455L (fi)
NO (1)	NO823465L (fi)
ZA (1)	ZA826506B (fi)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ZA837927B (en) *	1983-05-23	1985-01-30	Process Evaluation Devel	Thermomechanical digestion process using bleachants
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
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
US5188708A (en) *	1989-02-15	1993-02-23	Union Camp Patent Holding, Inc.	Process for high consistency oxygen delignification followed by ozone relignification
US5525195A (en) *	1989-02-15	1996-06-11	Union Camp Patent Holding, Inc.	Process for high consistency 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
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
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
US5164043A (en) *	1990-05-17	1992-11-17	Union Camp Patent Holding, Inc.	Environmentally improved process for bleaching lignocellulosic materials with ozone
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
US5271805A (en) *	1992-03-20	1993-12-21	Stockel Ivar H	Method and apparatus for waste paper treatment
US5609180A (en) *	1992-04-27	1997-03-11	Burlington Chemical Co., Inc.	Liquid alkali system for fiber reactive dyeing
US5460696A (en) *	1993-08-12	1995-10-24	The Boc Group, Inc.	Oxygen delignification method incorporating wood pulp mixing apparatus
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
US5736004A (en) *	1995-03-03	1998-04-07	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
US5672247A (en) *	1995-03-03	1997-09-30	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
ATE214113T1 (de) *	1995-12-07	2002-03-15	Beloit Technologies Inc	Delignifizierung von mittelkonsistenz-zellstoff mittels sauerstoff
US5843278A (en) *	1997-02-14	1998-12-01	Potlatch Corporation	Method of producing soft paper products
SE522593C2 (sv) *	1999-07-06	2004-02-24	Kvaerner Pulping Tech	System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material
DE10033978A1 (de) *	2000-07-13	2002-01-24	Voith Paper Patent Gmbh	Verfahren sowie Vorrichtung zum Beladen von Fasern mit Calciumcarbonat
SE525773C2 (sv) *	2003-09-24	2005-04-26	Kvaerner Pulping Tech	Metod och arrangemang för syrgasdelignifiering av cellulosamassa med pH-reglering i slutfasen
EP1813345A1 (en) *	2006-01-30	2007-08-01	Sulzer Pumpen Ag	Method and apparatus for controlling the efficiency of mixing
JP5779323B2 (ja) *	2010-07-05	2015-09-16	本田技研工業株式会社	リグノセルロース系バイオマスの糖化前処理方法
JP5713591B2 (ja) *	2010-07-05	2015-05-07	本田技研工業株式会社	リグノセルロース系バイオマスの糖化前処理装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE630337A (fi) *	1962-03-30
FR1601408A (fi) *	1967-06-20	1970-08-24
SE355614B (fi) *	1970-05-13	1973-04-30	Mo Och Domsjoe Ab
GB1562493A (en) *	1976-07-28	1980-03-12	Pira Research Ass For The Pape	Pulping of cellulosic material
US4198266A (en) *	1977-10-12	1980-04-15	Airco, Inc.	Oxygen delignification of wood pulp
SU730909A1 (ru) *	1977-12-20	1980-04-30	Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности	Способ получени целлюлозы
US4248662A (en) *	1979-01-22	1981-02-03	The Black Clawson Company	Oxygen pulping with recycled liquor
US4363697A (en) *	1979-12-03	1982-12-14	The Black Clawson Company	Method for medium consistency oxygen delignification of pulp

1981
- 1981-10-27 US US06/315,672 patent/US4431480A/en not_active Expired - Fee Related
1982
- 1982-09-01 CA CA000410579A patent/CA1193807A/en not_active Expired
- 1982-09-06 ZA ZA826506A patent/ZA826506B/xx unknown
- 1982-09-07 AU AU88069/82A patent/AU8806982A/en not_active Abandoned
- 1982-10-11 FI FI823455A patent/FI823455L/fi not_active Application Discontinuation
- 1982-10-13 EP EP82305445A patent/EP0078129A1/en not_active Ceased
- 1982-10-18 NO NO823465A patent/NO823465L/no unknown
- 1982-10-20 BR BR8206106A patent/BR8206106A/pt unknown
- 1982-10-27 JP JP57188887A patent/JPS5887386A/ja active Pending

Also Published As

Publication number	Publication date
AU8806982A (en)	1983-05-05
ZA826506B (en)	1983-07-27
EP0078129A1 (en)	1983-05-04
CA1193807A (en)	1985-09-24
JPS5887386A (ja)	1983-05-25
FI823455L (fi)	1983-04-28
US4431480A (en)	1984-02-14
NO823465L (no)	1983-04-28
BR8206106A (pt)	1983-09-20

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Legal Events

Date	Code	Title	Description
2004-08-31	FD	Application lapsed	Owner name: AIR PRODUCTS AND CHEMICALS, INC. Owner name: THE BLACK CLAWSON CO

Date

Code

Title

Description

2004-08-31

Application lapsed

Owner name: AIR PRODUCTS AND CHEMICALS, INC.

Owner name: THE BLACK CLAWSON CO