SE8102597L - Forfarande for framstellning av alkalisk sulfitmassa - Google Patents

Forfarande for framstellning av alkalisk sulfitmassa

Info

Publication number: SE8102597L
Authority: SE; Sweden
Prior art keywords: alkalic; procedure; preparation; pulping process; sodium aluminate
Prior art date: 1980-05-21

Application number

SE8102597A

Other languages

Unknown language ( )

English (en)

Inventor

S Pihlajameki

N-E Virkola

Original Assignee

Ahlstroem Oy

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.)

1980-05-21

Filing date

1981-04-23

Publication date

1981-11-22

1981-04-23 Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy

1981-11-22 Publication of SE8102597L publication Critical patent/SE8102597L/sv

Links

238000000034 method Methods 0.000 title abstract 3
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title 1
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 abstract 2
238000004537 pulping Methods 0.000 abstract 2
229910001388 sodium aluminate Inorganic materials 0.000 abstract 2
GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 2
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 abstract 1
150000004056 anthraquinones Chemical class 0.000 abstract 1
239000006172 buffering agent Substances 0.000 abstract 1
239000012978 lignocellulosic material Substances 0.000 abstract 1
235000010265 sodium sulphite Nutrition 0.000 abstract 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

Paper (AREA)

SE8102597A 1980-05-21 1981-04-23 Forfarande for framstellning av alkalisk sulfitmassa SE8102597L (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FI801628A FI60041C (fi)	1980-05-21	1980-05-21	Foerfarande foer tillverkning av alkalisk sulfitmassa

Publications (1)

Publication Number	Publication Date
SE8102597L true SE8102597L (sv)	1981-11-22

Family

ID=8513490

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8102597A SE8102597L (sv)	1980-05-21	1981-04-23	Forfarande for framstellning av alkalisk sulfitmassa

Country Status (8)

Country	Link
US (1)	US4384921A (sv)
JP (1)	JPS5716989A (sv)
BR (1)	BR8103131A (sv)
CA (1)	CA1159202A (sv)
DE (1)	DE3115922A1 (sv)
FI (1)	FI60041C (sv)
FR (1)	FR2482988A1 (sv)
SE (1)	SE8102597L (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI75615C (sv) *	1985-11-29	1991-08-26	Ahlstroem Oy	Förfarande för sänkning av svartlutens viskositet
CN1035522C (zh) *	1989-02-01	1997-07-30	王建忠	植物纤维素与非纤维素的分离方法
US6325892B1 (en)	1998-09-23	2001-12-04	University Of New Brunswick	Method of delignifying sulphite pulp with oxygen and borohydride
US7182836B2 (en) *	2001-06-29	2007-02-27	Voith Paper Fiber Systems Gmbh Kg	Method for delignifying lignocellulosic raw materials
FI115227B (sv) *	2002-01-23	2005-03-31	Rinheat Oy	Förfarande för blekning av en mekaniskt defibrerad massa
US20040200587A1 (en) *	2003-04-08	2004-10-14	Herring William J.	Cellulose pulp having increased hemicellulose content
US20040200589A1 (en) *	2003-04-08	2004-10-14	Herring William J.	Method of making pulp having high hemicellulose content
MA41169A (fr) *	2014-12-17	2017-10-24	Acraf	Composés antibactériens à large spectre d'activité

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA847218A (en)		1970-07-21	V. Ingruber Otto	Alkaline sulfite pulping
FR638011A (fr) *	1928-08-25	1928-05-14		Procédé d'extraction de la cellulose et de fibres textiles des substances végétales
US1935580A (en) *	1930-09-06	1933-11-14	Brown Co	Processing of cellulose fiber
US2601110A (en) *	1945-06-14	1952-06-17	Ontario Paper Co Ltd	Pulping lignocellulose with sodium aluminate
ZA773044B (en) *	1976-06-02	1978-04-26	Australian Paper Manufacturers	Improvements in pulping processes
SE417114B (sv) *	1977-07-25	1981-02-23	Mo Och Domsjoe Ab	Forfarande for forebyggande av inkrustbildning i cellulosafabriker

1980
- 1980-05-21 FI FI801628A patent/FI60041C/fi not_active IP Right Cessation
1981
- 1981-04-22 DE DE19813115922 patent/DE3115922A1/de not_active Withdrawn
- 1981-04-23 SE SE8102597A patent/SE8102597L/sv not_active Application Discontinuation
- 1981-04-29 CA CA000376478A patent/CA1159202A/en not_active Expired
- 1981-05-04 US US06/260,325 patent/US4384921A/en not_active Expired - Fee Related
- 1981-05-20 BR BR8103131A patent/BR8103131A/pt unknown
- 1981-05-21 JP JP7583581A patent/JPS5716989A/ja active Pending
- 1981-05-21 FR FR8110151A patent/FR2482988A1/fr not_active Withdrawn

Also Published As

Publication number	Publication date
BR8103131A (pt)	1982-02-09
FR2482988A1 (fr)	1981-11-27
JPS5716989A (en)	1982-01-28
FI60041B (fi)	1981-07-31
DE3115922A1 (de)	1982-02-18
FI60041C (fi)	1981-11-10
CA1159202A (en)	1983-12-27
US4384921A (en)	1983-05-24

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Legal Events

Date	Code	Title	Description
1995-02-28	NAV	Patent application has lapsed	Ref document number: 8102597-5