FI915070A7 - Blekningslösning för pappersmassa - Google Patents

Blekningslösning för pappersmassa Download PDF

Info

Publication number: FI915070A7
Authority: FI; Finland
Prior art keywords: bleaching solution; pulp bleaching; pulp; solution; bleaching
Prior art date: 1990-11-09

Application number

FI915070A

Other languages

English (en)

Finnish (fi)

Other versions

FI915070A0 (fi

FI915070L (fi

Inventor

Richard A Mikulski

Michael M Cook

Original Assignee

Morton Int Inc

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.)

1990-11-09

Filing date

1991-10-28

Publication date

1992-05-10

1991-10-28 Application filed by Morton Int Inc filed Critical Morton Int Inc

1991-10-28 Publication of FI915070A0 publication Critical patent/FI915070A0/fi

1992-05-10 Publication of FI915070L publication Critical patent/FI915070L/fi

1992-05-10 Publication of FI915070A7 publication Critical patent/FI915070A7/sv

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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
- 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
- D21C9/1042—Use of chelating agents

Landscapes

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

FI915070A 1990-11-09 1991-10-28 Blekningslösning för pappersmassa FI915070A7 (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/612,033 US5169555A (en)	1990-11-09	1990-11-09	Pulp bleaching solution

Publications (3)

Publication Number	Publication Date
FI915070A0 FI915070A0 (fi)	1991-10-28
FI915070L FI915070L (fi)	1992-05-10
FI915070A7 true FI915070A7 (sv)	1992-05-10

Family

ID=24451437

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI915070A FI915070A7 (sv)	1990-11-09	1991-10-28	Blekningslösning för pappersmassa

Country Status (7)

Country	Link
US (1)	US5169555A (sv)
EP (1)	EP0485074A1 (sv)
JP (1)	JPH04263686A (sv)
CA (1)	CA2051470A1 (sv)
FI (1)	FI915070A7 (sv)
NO (1)	NO913940L (sv)
ZA (1)	ZA917491B (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0639665A1 (de) *	1993-08-20	1995-02-22	Ciba-Geigy Ag	Phosphatfreies Reduktionsbleichmittel
US6294048B1 (en) *	1998-06-01	2001-09-25	U.S. Borax Inc.	Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
JP4613338B2 (ja) *	2001-02-06	2011-01-19	独立行政法人産業技術総合研究所	セルロース誘導体の漂白法
EP1375735B1 (en) *	2002-06-28	2005-08-31	Rohm And Haas Company	Method for brightening pulp with hydrosulfite solution
DE60326113D1 (de) *	2002-11-05	2009-03-26	Rohm & Haas	Verfahren zum Bleichen von mechanischer Pulpe
JP4883794B2 (ja) *	2006-07-05	2012-02-22	ロームアンドハースカンパニー	高温安定型水素化ホウ素配合物
US20100224333A1 (en)	2009-03-09	2010-09-09	Prasad Duggirala	Method and chemical composition to improve efficiency of mechanical pulp
US9932709B2 (en) *	2013-03-15	2018-04-03	Ecolab Usa Inc.	Processes and compositions for brightness improvement in paper production

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2970114A (en) *	1958-01-27	1961-01-31	Metal Hydrides Inc	Stabilized aqueous solutions of sodium borohydride
DE1567554A1 (de) *	1966-04-02	1970-07-09	Goerrig Dipl Chem Dr Rer Nat D	Festkoerper,enthaltend Alkalihydroxydhydrat,Alkaliboranat und gegebenenfalls Katalysatoren
DE2107959A1 (de) *	1971-02-19	1972-08-31	Basf Ag	Stabilisierte Natriumdithionitzubereitungen
US3933676A (en) *	1974-04-08	1976-01-20	Ventron Corporation	Stabilized aqueous solutions of sodium borohydride
US3933677A (en) *	1974-05-24	1976-01-20	E. I. Du Pont De Nemours & Company	Preparation of aqueous dispersions of blocked aromatic polyisocyanates
US4115293A (en) *	1975-10-06	1978-09-19	E. I. Du Pont De Nemours And Company	Denture cleanser
SE415581B (sv) *	1977-04-18	1980-10-13	Mo Och Domsjoe Ab	Forfarande for perocidblekning av hogutbytesmassa
US4283303A (en) *	1980-06-05	1981-08-11	Virginia Chemicals Inc.	Process for manufacture of stable sodium dithionite slurries
US4610728A (en) *	1982-10-19	1986-09-09	Ram Natesh	Method and composition for dissolving deposits of magnetite
FR2604197B1 (fr) *	1986-09-23	1988-11-18	Atochem	Procede de blanchiment de matieres lignocellulosiques.

1990
- 1990-11-09 US US07/612,033 patent/US5169555A/en not_active Expired - Lifetime
1991
- 1991-09-16 CA CA002051470A patent/CA2051470A1/en not_active Abandoned
- 1991-09-19 ZA ZA917491A patent/ZA917491B/xx unknown
- 1991-10-08 NO NO91913940A patent/NO913940L/no unknown
- 1991-10-10 EP EP91309344A patent/EP0485074A1/en not_active Withdrawn
- 1991-10-28 FI FI915070A patent/FI915070A7/sv not_active Application Discontinuation
- 1991-11-08 JP JP3293373A patent/JPH04263686A/ja active Pending

Also Published As

Publication number	Publication date
EP0485074A1 (en)	1992-05-13
JPH04263686A (ja)	1992-09-18
FI915070A0 (fi)	1991-10-28
ZA917491B (en)	1993-03-01
NO913940D0 (no)	1991-10-08
FI915070L (fi)	1992-05-10
US5169555A (en)	1992-12-08
CA2051470A1 (en)	1992-05-10
NO913940L (no)	1992-05-11

Publication	Publication Date	Title
DE69125309D1 (de)	1997-04-30	Bleichmittelaktivierung
FI942716L (sv)	1994-06-09	Cellulosafibrer
DK451488D0 (da)	1988-08-12	Blegemiddel
BR9100791A (pt)	1991-10-29	Polpa de aramida dispersavel
DE69122789D1 (de)	1996-11-28	Wässrige Bleichmittelzusammensetzung
FI913930L (fi)	1992-02-23	Foerfarande foer behandling av pulp.
DK0512031T3 (da)	1994-04-18	Blegende detergentsammensætning
FI922279A7 (sv)	1992-11-25	Tvåstegsreaktor för blekning av massa
DE69230034D1 (de)	1999-10-28	Peroxidbleichverfahren
FI950526L (sv)	1995-02-07	Förfarande i samband med massablekning
DK562089A (da)	1990-05-12	Blegemiddel
DE69419914D1 (de)	1999-09-09	Vertikale Bleichmaschine
DE59007242D1 (de)	1994-10-27	Bleichbad.
FI906400L (sv)	1991-06-30	Sätt att bleka massa
FI923607L (fi)	1993-02-14	Foerbaettringar i pulpmaskiner foer att dispergera sellulosapulp
DE68926381D1 (de)	1996-06-05	Bleichmittel
DE69024334T3 (de)	2004-10-21	Bleichmittel
DE69106908D1 (de)	1995-03-09	Bleichmittel.
FI911963A7 (sv)	1991-10-26	Förfarande för blekning av massa
FI915070A7 (sv)	1992-05-10	Blekningslösning för pappersmassa
ITMI911945A1 (it)	1993-01-12	Liccio
FI904456A7 (sv)	1991-03-13	Förfarande för blekning av cellulosa
FI905954A7 (sv)	1992-06-04	Förfarande för blekning av cellulosamassa
DE69109273D1 (de)	1995-06-01	Flüssiges bleichmittel.
FI970821L (sv)	1997-02-27	Massablekning

Legal Events

Date	Code	Title	Description
1995-04-30	FD	Application lapsed