NO871465L - Fremgangsmaate og anordning for utfelling av negativt ladde ligninderivater. - Google Patents
Fremgangsmaate og anordning for utfelling av negativt ladde ligninderivater.Info
- Publication number
- NO871465L NO871465L NO871465A NO871465A NO871465L NO 871465 L NO871465 L NO 871465L NO 871465 A NO871465 A NO 871465A NO 871465 A NO871465 A NO 871465A NO 871465 L NO871465 L NO 871465L
- Authority
- NO
- Norway
- Prior art keywords
- reactor
- precipitation
- value
- computer
- absorption
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 26
- 238000001556 precipitation Methods 0.000 claims description 23
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 230000001376 precipitating effect Effects 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000006228 supernatant Substances 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 9
- 239000013049 sediment Substances 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 238000004061 bleaching Methods 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229920002873 Polyethylenimine Polymers 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
-
- 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
- D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite lye
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Unknown Constitution (AREA)
- Luminescent Compositions (AREA)
- Photoreceptors In Electrophotography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863611676 DE3611676A1 (de) | 1986-04-08 | 1986-04-08 | Verfahren und vorrichtung zum ausfaellen von negativ geladenen lignin-derivaten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO871465D0 NO871465D0 (no) | 1987-04-07 |
| NO871465L true NO871465L (no) | 1987-10-09 |
Family
ID=6298156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO871465A NO871465L (no) | 1986-04-08 | 1987-04-07 | Fremgangsmaate og anordning for utfelling av negativt ladde ligninderivater. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0240760A3 (cs) |
| DE (1) | DE3611676A1 (cs) |
| FI (1) | FI871513A7 (cs) |
| NO (1) | NO871465L (cs) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3518204A (en) * | 1967-11-01 | 1970-06-30 | Betz Laboratories | Control of the rate of precipitate growth and of precipitation in aqueous systems |
| DE3038241C2 (de) * | 1980-10-10 | 1983-01-05 | Gesellschaft für Biotechnologische Forschung mbH (GBF), 3300 Braunschweig | Verfahren zur Ausfällung von Ligninsulfonaten aus Sulfitablaugen |
-
1986
- 1986-04-08 DE DE19863611676 patent/DE3611676A1/de active Granted
-
1987
- 1987-03-11 EP EP87103478A patent/EP0240760A3/de not_active Withdrawn
- 1987-04-07 FI FI871513A patent/FI871513A7/fi not_active IP Right Cessation
- 1987-04-07 NO NO871465A patent/NO871465L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO871465D0 (no) | 1987-04-07 |
| FI871513A0 (fi) | 1987-04-07 |
| DE3611676A1 (de) | 1987-10-15 |
| DE3611676C2 (cs) | 1988-12-01 |
| FI871513A7 (fi) | 1987-10-09 |
| EP0240760A3 (de) | 1988-09-21 |
| EP0240760A2 (de) | 1987-10-14 |
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