NO123511B - - Google Patents

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Info

Publication number: NO123511B
Authority: NO; Norway
Prior art keywords: liquid; impregnation; polysulphide; zone; temperature area
Prior art date: 1966-05-14

Application number

NO16808967A

Other languages

English (en)

Norwegian (no)

Other versions

NO123511C (de

Inventor

W Cook

Original Assignee

Domtar Ltd

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.)

1966-05-14

Filing date

1967-05-10

Publication date

1971-11-29

1967-05-10 Application filed by Domtar Ltd filed Critical Domtar Ltd

1971-11-29 Publication of NO123511B publication Critical patent/NO123511B/no

1976-07-22 Publication of NO123511C publication Critical patent/NO123511C/no

Links

239000007788 liquid Substances 0.000 claims description 63
238000005470 impregnation Methods 0.000 claims description 47
229920001021 polysulfide Polymers 0.000 claims description 40
238000000034 method Methods 0.000 claims description 20
230000003647 oxidation Effects 0.000 claims description 17
238000007254 oxidation reaction Methods 0.000 claims description 17
239000000463 material Substances 0.000 claims description 8
UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 6
230000029087 digestion Effects 0.000 claims description 6
229920002678 cellulose Polymers 0.000 claims description 5
239000001913 cellulose Substances 0.000 claims description 5
239000012978 lignocellulosic material Substances 0.000 claims description 5
239000005077 polysulfide Substances 0.000 claims description 5
150000008117 polysulfides Polymers 0.000 claims description 5
238000001816 cooling Methods 0.000 claims description 4
230000001590 oxidative effect Effects 0.000 claims description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
239000011593 sulfur Substances 0.000 description 8
229910052717 sulfur Inorganic materials 0.000 description 8
238000009835 boiling Methods 0.000 description 7
239000000203 mixture Substances 0.000 description 7
238000010411 cooking Methods 0.000 description 5
239000002023 wood Substances 0.000 description 5
239000003513 alkali Substances 0.000 description 3
RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 description 3
230000001105 regulatory effect Effects 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
239000005864 Sulphur Substances 0.000 description 2
239000003518 caustics Substances 0.000 description 2
-1 hydrosulphide ions Chemical class 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
238000005192 partition Methods 0.000 description 2
238000004064 recycling Methods 0.000 description 2
239000000126 substance Substances 0.000 description 2
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
229920001131 Pulp (paper) Polymers 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
239000006096 absorbing agent Substances 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
239000002253 acid Substances 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
150000008044 alkali metal hydroxides Chemical class 0.000 description 1
150000001340 alkali metals Chemical class 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000004939 coking Methods 0.000 description 1
238000007596 consolidation process Methods 0.000 description 1
239000012530 fluid Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
229910052976 metal sulfide Inorganic materials 0.000 description 1
238000006386 neutralization reaction Methods 0.000 description 1
239000007800 oxidant agent Substances 0.000 description 1
HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
229910052979 sodium sulfide Inorganic materials 0.000 description 1
GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
238000001179 sorption measurement Methods 0.000 description 1
229910021653 sulphate ion Inorganic materials 0.000 description 1
230000000153 supplemental effect Effects 0.000 description 1
239000012808 vapor phase Substances 0.000 description 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds

Landscapes

Paper (AREA)

NO16808967A 1966-05-14 1967-05-10 NO123511C (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB2151466		1966-05-14

Publications (2)

Publication Number	Publication Date
NO123511B true NO123511B (de)	1971-11-29
NO123511C NO123511C (de)	1976-07-22

Family

ID=10164213

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO16808967A NO123511C (de)	1966-05-14	1967-05-10

Country Status (4)

Country	Link
DE (1)	DE1692846A1 (de)
FI (1)	FI46001C (de)
NO (1)	NO123511C (de)
SE (1)	SE317863B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE8106203L (sv) *	1981-10-21	1983-04-22	Nils V Mannbro	Sett for polysulfidbehandling av lignocellulosamaterial vid alkalisk massaframstellning
FI71176C (fi) *	1983-11-30	1991-12-03	Ekono Oy	Foerfarande foer framstaellning av cellulosa med satsvis kokning.

1967
- 1967-05-10 NO NO16808967A patent/NO123511C/no unknown
- 1967-05-11 DE DE19671692846 patent/DE1692846A1/de active Pending
- 1967-05-11 SE SE6646/67A patent/SE317863B/xx unknown
- 1967-05-12 FI FI136567A patent/FI46001C/fi active

Also Published As

Publication number	Publication date
FI46001C (fi)	1972-11-10
NO123511C (de)	1976-07-22
SE317863B (de)	1969-11-24
DE1692846A1 (de)	1971-10-21
FI46001B (de)	1972-07-31

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