NO170346C - Fremgangsmaate ved bleking av materialer med en ditionitt opploesning - Google Patents

Fremgangsmaate ved bleking av materialer med en ditionitt opploesning

Info

Publication number: NO170346C
Authority: NO; Norway
Prior art keywords: solution; pct; materials; bleaching; ditional
Prior art date: 1987-06-24

Application number

NO890764A

Other languages

English (en)

Norwegian (no)

Other versions

NO890764D0 (no

NO170346B (no

NO890764L (no

Inventor

Inge Maansson

Original Assignee

Eka Nobel 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.)

1987-06-24

Filing date

1989-02-22

Publication date

1992-10-07

1989-02-22 Application filed by Eka Nobel Ab filed Critical Eka Nobel Ab

1989-02-22 Publication of NO890764D0 publication Critical patent/NO890764D0/no

1989-02-22 Publication of NO890764L publication Critical patent/NO890764L/no

1992-06-29 Publication of NO170346B publication Critical patent/NO170346B/no

1992-10-07 Publication of NO170346C publication Critical patent/NO170346C/no

Links

239000000463 material Substances 0.000 title abstract 3
238000000034 method Methods 0.000 title abstract 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
238000004061 bleaching Methods 0.000 abstract 3
239000000243 solution Substances 0.000 abstract 3
GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 abstract 2
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
239000007864 aqueous solution Substances 0.000 abstract 1
238000011065 in-situ storage Methods 0.000 abstract 1
150000002500 ions Chemical class 0.000 abstract 1
229910000033 sodium borohydride Inorganic materials 0.000 abstract 1
239000012279 sodium borohydride Substances 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/64—Thiosulfates; Dithionites; Polythionates
- C01B17/66—Dithionites or hydrosulfites (S2O42-)
- 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
- D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Inorganic Chemistry (AREA)
Paper (AREA)
Silver Salt Photography Or Processing Solution Therefor (AREA)
Detergent Compositions (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Inks, Pencil-Leads, Or Crayons (AREA)
Dental Preparations (AREA)
Coloring Foods And Improving Nutritive Qualities (AREA)

NO890764A 1987-06-24 1989-02-22 Fremgangsmaate ved bleking av materialer med en ditionitt opploesning NO170346C (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8702616A SE457647B (sv)	1987-06-24	1987-06-24	Saett vid blekning av material med ditionitloesning
PCT/SE1988/000320 WO1988010334A1 (en)	1987-06-24	1988-06-14	Process for bleaching of materials with a dithionite solution

Publications (4)

Publication Number	Publication Date
NO890764D0 NO890764D0 (no)	1989-02-22
NO890764L NO890764L (no)	1989-02-22
NO170346B NO170346B (no)	1992-06-29
NO170346C true NO170346C (no)	1992-10-07

Family

ID=20368961

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO890764A NO170346C (no)	1987-06-24	1989-02-22	Fremgangsmaate ved bleking av materialer med en ditionitt opploesning

Country Status (9)

Country	Link
US (1)	US4919755A (de)
EP (1)	EP0319563B1 (de)
AT (1)	ATE68023T1 (de)
CA (1)	CA1295440C (de)
DE (1)	DE3865298D1 (de)
FI (1)	FI92416C (de)
NO (1)	NO170346C (de)
SE (1)	SE457647B (de)
WO (1)	WO1988010334A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5094833A (en) *	1989-01-05	1992-03-10	Morton International, Inc.	High yield sodium hydrosulfite generation
US5336479A (en) *	1989-01-05	1994-08-09	Morton International, Inc.	High yield sodium hydrosulfite generation
CA1340248C (en) *	1989-01-05	1998-12-15	Morton International, Inc.	High yield sodium hydrosulfite generation
AU657778B2 (en) *	1991-10-11	1995-03-23	Engelhard Corporation	In situ method for producing hydrosulfite bleach and use thereof
GB9214041D0 (en) *	1992-07-02	1992-08-12	Morton Int Inc	Process for de-inking recycled paper pulp
US6217621B1 (en) *	1999-07-09	2001-04-17	Morton International Inc.	Textile substrate dye stripping
AU6413200A (en) *	1999-11-04	2001-05-10	Rohm And Haas Company	Method and composition for whitening textiles
EP1146089A1 (de) *	2000-04-10	2001-10-17	Rohm And Haas Company	Verfahren zum Bleichen von Kaolin Ton und anderen Mineralien und erhaltene, gebleichte Produkte
US6663677B2 (en)	2000-10-16	2003-12-16	Rohm And Haas Company	Methods for use in wool whitening and garment washing
EP1478593A4 (de) *	2001-11-13	2008-07-02	Montgomery Chemicals Llc	Wässrige borhydridzusammensetzungen
NO20032722L (no) *	2002-06-28	2003-12-29	Rohm & Haas	Fremgangsmåte til klaring av pulp med hydrosulfittl degree sning
EP1418269B1 (de) *	2002-11-05	2009-02-11	Rohm And Haas Company	Verfahren zum Bleichen von mechanischer Pulpe
US20040211533A1 (en) *	2003-04-28	2004-10-28	Qiang Huang	Method for bleaching and color stripping recycled fibers
US20080052838A1 (en) *	2006-09-01	2008-03-06	Qiang Huang	Method for leaching and brightening kaolin clay and other minerals
FI121114B (fi)	2007-05-04	2010-07-15	Kemira Oyj	Ditioniitin valmistusmenetelmä
FI20086031A7 (fi) *	2008-10-31	2010-05-01	Kemira Oyj	Valkaisumenetelmä
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
US8662171B2 (en) *	2010-03-25	2014-03-04	Montgomery Chemicals, Llc	Method and composition for oil enhanced recovery
KR102338550B1 (ko)	2013-06-06	2021-12-14	엔테그리스, 아이엔씨.	질화 티타늄의 선택적인 에칭을 위한 조성물 및 방법
CN103485212B (zh) *	2013-09-04	2016-05-11	北京泛博化学股份有限公司	利用拔色剂拔色的方法
CN111304940A (zh) *	2020-03-27	2020-06-19	江苏竹福科技有限公司	一种双组份一浴剥色剂及其剥色方法
CN113174771A (zh) *	2021-04-29	2021-07-27	玖龙纸业（东莞）有限公司	一种涂布白板纸浆料的三元漂白方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2991152A (en) *	1957-01-16	1961-07-04	Goerrig	Method of preparing sodium and potassium hyposulphite
US3167515A (en) *	1961-07-31	1965-01-26	Metal Hydrides Inc	Preparation of alkali metal hydrosulfites
US3290161A (en) *	1963-10-04	1966-12-06	Fmc Corp	Clay bleaching
US3795491A (en) *	1972-01-26	1974-03-05	Ventron Corp	Method for preparing aqueous solutions of sodium borohydride of high concentration
US3933676A (en) *	1974-04-08	1976-01-20	Ventron Corporation	Stabilized aqueous solutions of sodium borohydride
EP0027369A1 (de) *	1979-10-12	1981-04-22	Thiokol Corporation	Stabile Ausgangslösung zur Herstellung von Hydrosulfit und ihre Verwendung beim Bleichen von Holzschliff, beim Aufhellen von Kaolinton und bei der Reduktion von Küpenfarbstoffen in ihre Leuko-Form

1987
- 1987-06-24 SE SE8702616A patent/SE457647B/sv not_active Application Discontinuation
1988
- 1988-06-14 AT AT88906162T patent/ATE68023T1/de not_active IP Right Cessation
- 1988-06-14 EP EP88906162A patent/EP0319563B1/de not_active Expired - Lifetime
- 1988-06-14 DE DE8888906162T patent/DE3865298D1/de not_active Expired - Fee Related
- 1988-06-14 US US07/317,473 patent/US4919755A/en not_active Expired - Fee Related
- 1988-06-14 WO PCT/SE1988/000320 patent/WO1988010334A1/en not_active Ceased
- 1988-06-20 CA CA000569885A patent/CA1295440C/en not_active Expired - Lifetime
1989
- 1989-02-17 FI FI890772A patent/FI92416C/fi not_active IP Right Cessation
- 1989-02-22 NO NO890764A patent/NO170346C/no unknown

Also Published As

Publication number	Publication date
NO890764D0 (no)	1989-02-22
SE8702616D0 (sv)	1987-06-24
NO170346B (no)	1992-06-29
NO890764L (no)	1989-02-22
FI92416B (fi)	1994-07-29
DE3865298D1 (de)	1991-11-07
WO1988010334A1 (en)	1988-12-29
SE8702616L (sv)	1988-12-25
EP0319563B1 (de)	1991-10-02
FI890772A0 (fi)	1989-02-17
SE457647B (sv)	1989-01-16
CA1295440C (en)	1992-02-11
FI92416C (fi)	1994-11-10
US4919755A (en)	1990-04-24
EP0319563A1 (de)	1989-06-14
FI890772L (fi)	1989-02-17
ATE68023T1 (de)	1991-10-15

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