ATE24556T1 - Verfahren zur polysulfidbehandlung im alkalischen pulpverfahren von lignocellulosematerial. - Google Patents

Verfahren zur polysulfidbehandlung im alkalischen pulpverfahren von lignocellulosematerial.

Info

Publication number: ATE24556T1
Authority: AT; Austria
Prior art keywords: liquor; polysulphide; wood chips; wood; chips
Prior art date: 1981-10-21

Application number

AT82903084T

Other languages

English (en)

Inventor

Nils V Mannbro

Original Assignee

Nils V Mannbro

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.)

1981-10-21

Filing date

1982-10-13

Publication date

1987-01-15

1982-10-13 Application filed by Nils V Mannbro filed Critical Nils V Mannbro

1987-01-15 Application granted granted Critical

1987-01-15 Publication of ATE24556T1 publication Critical patent/ATE24556T1/de

Links

229920001021 polysulfide Polymers 0.000 title abstract 7
238000000034 method Methods 0.000 title 2
239000012978 lignocellulosic material Substances 0.000 title 1
239000005077 polysulfide Substances 0.000 title 1
150000008117 polysulfides Polymers 0.000 title 1
238000004537 pulping Methods 0.000 title 1
239000002023 wood Substances 0.000 abstract 9
230000029087 digestion Effects 0.000 abstract 3
238000005470 impregnation Methods 0.000 abstract 3
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 2
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 2
229920001131 Pulp (paper) Polymers 0.000 abstract 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
238000004061 bleaching Methods 0.000 abstract 1
238000006243 chemical reaction Methods 0.000 abstract 1
239000002655 kraft paper Substances 0.000 abstract 1
230000001590 oxidative effect Effects 0.000 abstract 1
229910052760 oxygen Inorganic materials 0.000 abstract 1
239000001301 oxygen Substances 0.000 abstract 1
238000002360 preparation method Methods 0.000 abstract 1
230000008929 regeneration Effects 0.000 abstract 1
238000011069 regeneration method Methods 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds

Landscapes

Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
Paper (AREA)

AT82903084T 1981-10-21 1982-10-13 Verfahren zur polysulfidbehandlung im alkalischen pulpverfahren von lignocellulosematerial. ATE24556T1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
SE8106203A SE8106203L (sv)	1981-10-21	1981-10-21	Sett for polysulfidbehandling av lignocellulosamaterial vid alkalisk massaframstellning
EP82903084A EP0091457B1 (de)	1981-10-21	1982-10-13	Verfahren zur polysulfidbehandlung im alkalischen pulpverfahren von lignocellulosematerial
PCT/SE1982/000330 WO1983001469A1 (en)	1981-10-21	1982-10-13	A method of polysulphide treatment in alkaline pulping of lignocellulose material

Publications (1)

Publication Number	Publication Date
ATE24556T1 true ATE24556T1 (de)	1987-01-15

Family

ID=20344836

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT82903084T ATE24556T1 (de)	1981-10-21	1982-10-13	Verfahren zur polysulfidbehandlung im alkalischen pulpverfahren von lignocellulosematerial.

Country Status (5)

Country	Link
EP (1)	EP0091457B1 (de)
AT (1)	ATE24556T1 (de)
DE (1)	DE3274887D1 (de)
SE (1)	SE8106203L (de)
WO (1)	WO1983001469A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI122841B (fi) *	2004-10-04	2012-07-31	Metso Paper Inc	Menetelmä ja laitteisto selluloosamassan valmistamiseksi
US8940129B2 (en) *	2010-12-30	2015-01-27	Uop Llc	Process for reducing one or more insoluble solids in a black liquor
SE538792C2 (en)	2015-02-06	2016-11-29	Stora Enso Oyj	Apparatus and method for component assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI40677B (de) *	1961-05-27	1968-12-31	Papirind Forskningsinst
NO123511C (de) *	1966-05-14	1976-07-22	Domtar Ltd
US3567572A (en) *	1967-09-06	1971-03-02	Pulp Paper Res Inst	Polysulfide liquor impregnation of lignocellulose materials in a multistage pulping process
US3723242A (en) *	1971-04-01	1973-03-27	Union Camp Corp	Oxidation of sulfide pulping liquor to form polysulfide liquor in situ
NO142408C (no) *	1972-04-11	1980-08-20	Rosenlew Ab Oy W	Fremgangsmaate ved alkalisk cellulosekoking.
CA1013903A (en) *	1973-06-04	1977-07-19	Union Camp Corporation	Method of pulping with polysulfide

1981
- 1981-10-21 SE SE8106203A patent/SE8106203L/ not_active Application Discontinuation
1982
- 1982-10-13 DE DE8282903084T patent/DE3274887D1/de not_active Expired
- 1982-10-13 WO PCT/SE1982/000330 patent/WO1983001469A1/en not_active Ceased
- 1982-10-13 AT AT82903084T patent/ATE24556T1/de not_active IP Right Cessation
- 1982-10-13 EP EP82903084A patent/EP0091457B1/de not_active Expired

Also Published As

Publication number	Publication date
SE8106203L (sv)	1983-04-22
DE3274887D1 (en)	1987-02-05
WO1983001469A1 (en)	1983-04-28
EP0091457A1 (de)	1983-10-19
EP0091457B1 (de)	1986-12-30

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ATE24556T1 (de)	1987-01-15	Verfahren zur polysulfidbehandlung im alkalischen pulpverfahren von lignocellulosematerial.
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Legal Events

Date	Code	Title	Description
1987-10-15	UEP	Publication of translation of european patent specification
1992-07-15	REN	Ceased due to non-payment of the annual fee