NO116738B - - Google Patents

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Info

Publication number: NO116738B
Authority: NO; Norway
Prior art keywords: cellulose; per cent; concentration; chlorine dioxide; temperature
Prior art date: 1963-03-07

Application number

NO15199064A

Other languages

English (en)

Norwegian (no)

Inventor

R Bjoerkman

Original Assignee

Goetaverken 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.)

1963-03-07

Filing date

1964-02-12

Publication date

1969-05-12

1964-02-12 Application filed by Goetaverken Ab filed Critical Goetaverken Ab

1969-05-12 Publication of NO116738B publication Critical patent/NO116738B/no

Links

HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 61
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 42
229920002678 cellulose Polymers 0.000 claims description 30
239000001913 cellulose Substances 0.000 claims description 30
238000000034 method Methods 0.000 claims description 23
239000004155 Chlorine dioxide Substances 0.000 claims description 21
235000019398 chlorine dioxide Nutrition 0.000 claims description 21
230000008961 swelling Effects 0.000 claims description 15
238000009835 boiling Methods 0.000 claims description 10
239000000243 solution Substances 0.000 claims description 8
230000002378 acidificating effect Effects 0.000 claims description 7
239000002023 wood Substances 0.000 claims description 6
238000004061 bleaching Methods 0.000 claims description 5
238000006116 polymerization reaction Methods 0.000 claims description 5
239000007844 bleaching agent Substances 0.000 claims description 3
229910001854 alkali hydroxide Inorganic materials 0.000 claims description 2
150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
239000012670 alkaline solution Substances 0.000 claims description 2
239000003513 alkali Substances 0.000 description 8
238000007792 addition Methods 0.000 description 7
238000006243 chemical reaction Methods 0.000 description 7
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 6
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
229920002488 Hemicellulose Polymers 0.000 description 5
239000000460 chlorine Substances 0.000 description 5
230000035484 reaction time Effects 0.000 description 5
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
229910052801 chlorine Inorganic materials 0.000 description 4
239000007858 starting material Substances 0.000 description 4
239000000126 substance Substances 0.000 description 4
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
229920001131 Pulp (paper) Polymers 0.000 description 3
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
239000002253 acid Substances 0.000 description 3
238000010411 cooking Methods 0.000 description 3
229910021653 sulphate ion Inorganic materials 0.000 description 3
238000005406 washing Methods 0.000 description 3
235000018185 Betula X alpestris Nutrition 0.000 description 2
235000018212 Betula X uliginosa Nutrition 0.000 description 2
241000218657 Picea Species 0.000 description 2
235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
235000011613 Pinus brutia Nutrition 0.000 description 2
241000018646 Pinus brutia Species 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
239000000356 contaminant Substances 0.000 description 2
230000000694 effects Effects 0.000 description 2
229920005610 lignin Polymers 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
239000000047 product Substances 0.000 description 2
238000007670 refining Methods 0.000 description 2
239000000080 wetting agent Substances 0.000 description 2
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
229920003043 Cellulose fiber Polymers 0.000 description 1
229920000057 Mannan Polymers 0.000 description 1
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
229920000297 Rayon Polymers 0.000 description 1
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
-1 acetic acid Chemical class 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
239000007864 aqueous solution Substances 0.000 description 1
238000007664 blowing Methods 0.000 description 1
150000001720 carbohydrates Chemical class 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
JFBJUMZWZDHTIF-UHFFFAOYSA-N chlorine chlorite Inorganic materials ClOCl=O JFBJUMZWZDHTIF-UHFFFAOYSA-N 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000029087 digestion Effects 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000002474 experimental method Methods 0.000 description 1
239000011121 hardwood Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
239000007788 liquid Substances 0.000 description 1
239000000463 material Substances 0.000 description 1
238000005259 measurement Methods 0.000 description 1
239000000203 mixture Substances 0.000 description 1
229910017604 nitric acid Inorganic materials 0.000 description 1
150000007524 organic acids Chemical class 0.000 description 1
235000005985 organic acids Nutrition 0.000 description 1
239000000123 paper Substances 0.000 description 1
239000002994 raw material Substances 0.000 description 1
238000011084 recovery Methods 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000004289 sodium hydrogen sulphite Substances 0.000 description 1
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
239000005031 sulfite paper Substances 0.000 description 1
239000008096 xylene Substances 0.000 description 1

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Paper (AREA)

NO15199064A 1963-03-07 1964-02-12 NO116738B (ja)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE248863		1963-03-07

Publications (1)

Publication Number	Publication Date
NO116738B true NO116738B (ja)	1969-05-12

Family

ID=20260050

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO15199064A NO116738B (ja)	1963-03-07	1964-02-12

Country Status (1)

Country	Link
NO (1)	NO116738B (ja)

1964
- 1964-02-12 NO NO15199064A patent/NO116738B/no unknown

Publication	Publication Date	Title
US3988198A (en)	1976-10-26	Method for treating hemi caustic effluents
US3462344A (en)	1969-08-19	Superbleaching of wood pulps
US4199399A (en)	1980-04-22	Method for preparing bagasse dissolving pulps and producing rayon having a degree of polymerization of at least 800 therefrom
NO166098B (no)	1991-02-18	Hjoerneforbindelse.
US6569285B2 (en)	2003-05-27	Process for gas phase pretreating of lignocellulosic containing material
US1880043A (en)	1932-09-27	Production of high grade chemical pulps
US3354030A (en)	1967-11-21	Alkaline sulfite digestion followed by acid digestion with bisulfite
RU2703467C2 (ru)	2019-10-17	Способ снижения вязкости целлюлозы при производстве растворимой целлюлозы
NO116738B (ja)	1969-05-12
US3738908A (en)	1973-06-12	Prehydrolysis and digestion of bagasse fibers
US2061616A (en)	1936-11-24	Production of cellulose
US1802575A (en)	1931-04-28	High alpha cellulose fiber and process of producing same
US1679441A (en)	1928-08-07	Process of manufacturing pulp for paper production
US2902481A (en)	1959-09-01	Process of treating wood pulp
US3092535A (en)	1963-06-04	Sulphite pulping process
US3832278A (en)	1974-08-27	Prehydrolysis and digestion of bagasse fibers
US1894501A (en)	1933-01-17	Manufacture of wood pulp
US1811864A (en)	1931-06-30	Process of liberating fiber from bagasse or like stalks
GB474305A (en)	1937-10-29	Improvements in or relating to the manufacture of cellulose from lignocellulosic materials
JP2895977B2 (ja)	1999-05-31	リグノセルロース材料の漂白方法
GB640543A (en)	1950-07-19	Improvements in or relating to the production of cellulose
US1968468A (en)	1934-07-31	Mercerization and purification of cellulose fiber
US2558054A (en)	1951-06-26	Purification of cellulosic materials
NO119509B (ja)	1970-05-25
US1848662A (en)	1932-03-08	of berlin