AR218936A1 - Procedimiento para preparar celulosa al sulfito de coniferas,de viscosidad media a elevada - Google Patents

Procedimiento para preparar celulosa al sulfito de coniferas,de viscosidad media a elevada

Info

Publication number: AR218936A1
Authority: AR; Argentina
Prior art keywords: conifer; sulphite; procedure; medium; high viscosity
Prior art date: 1977-09-20

Application number

AR273785A

Other languages

English (en)

Spanish (es)

Original Assignee

Degussa

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.)

1977-09-20

Filing date

1978-09-20

Publication date

1980-07-15

1978-09-20 Application filed by Degussa filed Critical Degussa

1980-07-15 Application granted granted Critical

1980-07-15 Publication of AR218936A1 publication Critical patent/AR218936A1/es

Links

241000218631 Coniferophyta Species 0.000 title 1
229920002678 cellulose Polymers 0.000 title 1
239000001913 cellulose Substances 0.000 title 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title 1

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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Cosmetics (AREA)
Sanitary Thin Papers (AREA)

AR273785A 1977-09-20 1978-09-20 Procedimiento para preparar celulosa al sulfito de coniferas,de viscosidad media a elevada AR218936A1 (es)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2742262A DE2742262C2 (de)	1977-09-20	1977-09-20	Verfahren zur Herstellung eines mittel- bis hochviskosen Nadelholz-Sulfitzellstoffs

Publications (1)

Publication Number	Publication Date
AR218936A1 true AR218936A1 (es)	1980-07-15

Family

ID=6019413

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AR273785A AR218936A1 (es)	1977-09-20	1978-09-20	Procedimiento para preparar celulosa al sulfito de coniferas,de viscosidad media a elevada

Country Status (16)

Country	Link
JP (1)	JPS5455606A (it)
AR (1)	AR218936A1 (it)
AT (1)	AT367812B (it)
BE (1)	BE870607A (it)
BR (1)	BR7806050A (it)
CA (1)	CA1133660A (it)
CH (1)	CH638003A5 (it)
DE (1)	DE2742262C2 (it)
ES (1)	ES472687A1 (it)
FI (1)	FI68273C (it)
FR (1)	FR2403418A1 (it)
GB (1)	GB2005743B (it)
IT (1)	IT1109111B (it)
NO (1)	NO153978C (it)
SE (1)	SE7809831L (it)
ZA (1)	ZA785356B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2520397A1 (fr) *	1982-01-28	1983-07-29	Centre Tech Ind Papier	Procede pour le traitement de pates papetieres chimiques
DE4031597A1 (de) *	1990-10-05	1992-04-09	Sueddeutsche Kalkstickstoff	Verfahren zur chlorarmen bleiche und delignifizierung von zellstoff
SE470065C (sv) *	1991-04-30	1996-01-15	Eka Nobel Ab	Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
US6398908B1 (en)	1991-04-30	2002-06-04	Eka Nobel Ab	Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
ZA955290B (en) *	1994-07-11	1996-12-27	Ingersoll Rand Co	Peroxide bleaching process for cellulosic and lignocellulosic material
RU2128261C1 (ru) *	1998-05-26	1999-03-27	Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии	Способ отбелки целлюлозы
RU2142529C1 (ru) *	1999-05-17	1999-12-10	Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии	Способ отбелки целлюлозы
RU2164572C1 (ru) *	2000-03-14	2001-03-27	Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии	Способ отбелки сульфатной целлюлозы
RU2163946C1 (ru) *	2000-08-02	2001-03-10	Институт химии Коми научного центра Уральского отделения РАН	Способ отбелки материалов или полуфабрикатов, содержащих целлюлозу
RU2205257C1 (ru) *	2002-07-01	2003-05-27	Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии	Способ отбелки сульфатной целлюлозы
RU2243304C1 (ru) *	2004-02-04	2004-12-27	Томский политехнический университет	Способ безхлорной отбелки сульфатной целлюлозы
DE102007036376A1 (de) *	2007-07-31	2009-02-05	Voith Patent Gmbh	Gebleichter Faserstoff
RU2413046C1 (ru) *	2009-09-21	2011-02-27	Эльвира Ильинична Федорова	Способ отбелки сульфатной целлюлозы

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2026068A (en) *	1929-09-11	1935-12-31	Du Pont	Process for the improvement of cellulose
DE753531C (de) *	1938-11-09	1953-05-18	Degussa	Verfahren zum Bleichen von Zellstoff

1977
- 1977-09-20 DE DE2742262A patent/DE2742262C2/de not_active Expired
1978
- 1978-08-18 ES ES472687A patent/ES472687A1/es not_active Expired
- 1978-08-18 NO NO782820A patent/NO153978C/no unknown
- 1978-08-21 FR FR7824288A patent/FR2403418A1/fr active Granted
- 1978-09-15 BR BR7806050A patent/BR7806050A/pt unknown
- 1978-09-19 BE BE6046608A patent/BE870607A/xx not_active IP Right Cessation
- 1978-09-19 CH CH978978A patent/CH638003A5/de not_active IP Right Cessation
- 1978-09-19 GB GB7837320A patent/GB2005743B/en not_active Expired
- 1978-09-19 SE SE7809831A patent/SE7809831L/xx unknown
- 1978-09-19 AT AT0675678A patent/AT367812B/de not_active IP Right Cessation
- 1978-09-19 IT IT69162/78A patent/IT1109111B/it active
- 1978-09-20 CA CA311,653A patent/CA1133660A/en not_active Expired
- 1978-09-20 JP JP11470478A patent/JPS5455606A/ja active Pending
- 1978-09-20 FI FI782869A patent/FI68273C/fi not_active IP Right Cessation
- 1978-09-20 ZA ZA00785356A patent/ZA785356B/xx unknown
- 1978-09-20 AR AR273785A patent/AR218936A1/es active

Also Published As

Publication number	Publication date
FR2403418B1 (it)	1982-07-02
JPS5455606A (en)	1979-05-02
FI782869A7 (fi)	1979-03-21
DE2742262A1 (de)	1979-03-29
NO782820L (no)	1979-03-21
SE7809831L (sv)	1979-03-21
AT367812B (de)	1982-08-10
BE870607A (fr)	1979-03-19
FI68273C (fi)	1985-08-12
ES472687A1 (es)	1979-02-16
GB2005743A (en)	1979-04-25
FR2403418A1 (fr)	1979-04-13
IT7869162A0 (it)	1978-09-19
FI68273B (fi)	1985-04-30
DE2742262C2 (de)	1982-06-09
ATA675678A (de)	1981-12-15
IT1109111B (it)	1985-12-16
ZA785356B (en)	1979-09-26
NO153978C (no)	1986-06-25
NO153978B (no)	1986-03-17
CH638003A5 (de)	1983-08-31
CA1133660A (en)	1982-10-19
GB2005743B (en)	1982-03-03
BR7806050A (pt)	1979-05-02

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