FI87472B - Foerfarande foer avfaergning av massafaergade papper och sjaelvkopierande papper. - Google Patents
Foerfarande foer avfaergning av massafaergade papper och sjaelvkopierande papper. Download PDFInfo
- Publication number
- FI87472B FI87472B FI871956A FI871956A FI87472B FI 87472 B FI87472 B FI 87472B FI 871956 A FI871956 A FI 871956A FI 871956 A FI871956 A FI 871956A FI 87472 B FI87472 B FI 87472B
- Authority
- FI
- Finland
- Prior art keywords
- paper
- deinking
- pulp
- fas
- papper
- Prior art date
Links
- 239000002253 acid Substances 0.000 claims abstract description 4
- 239000002761 deinking Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 27
- 238000005188 flotation Methods 0.000 claims description 15
- 238000005187 foaming Methods 0.000 claims description 9
- NYYSPVRERVXMLJ-UHFFFAOYSA-N 4,4-difluorocyclohexan-1-one Chemical compound FC1(F)CCC(=O)CC1 NYYSPVRERVXMLJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000004537 pulping Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- PNKUSGQVOMIXLU-UHFFFAOYSA-N Formamidine Chemical compound NC=N PNKUSGQVOMIXLU-UHFFFAOYSA-N 0.000 claims description 3
- 239000012736 aqueous medium Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000004042 decolorization Methods 0.000 abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 12
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 10
- 238000004061 bleaching Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 239000000975 dye Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 235000019353 potassium silicate Nutrition 0.000 description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000002775 capsule Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000010893 paper waste Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000011173 large scale experimental method Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003442 weekly effect Effects 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Paper (AREA)
- Color Printing (AREA)
- Developing Agents For Electrophotography (AREA)
- Electrotherapy Devices (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Claims (6)
1. Förfarande för avfärgning av massafärgade papper och självkopierande papper i ett alkaliskt, vattenhaltigt 5 medium, kännetecknat därav, att avfärgningen utförs vid en massakoncentration av 2 - 20 % och en tempe-ratur av 20 - 80 °C under användning av 0,05 - 2,5 vikt-% formamidinsulf insyra.
2. Förfarande enligt patentkravet 1, k ä n n e - 10 tecknat därav, att formamidinsulfinsyra tillsätts efter uppslagning och läts därefter reagera färdigt.
3. Förfarande enligt patentkravet 1, kännetecknat därav, att formamidinsulfinsyra tillsätts i början av eller under uppslagningen. 15
4. Förfarande enligt nägon av patentkraven 1 - 3, kännetecknat därav, att uppslagningen utförs vid en temperatur av 20 - 80 °C.
5. Förfarande enligt patentkravet 1, kännetecknat därav, att mellan utslagningen och avfärg- 20 ningen kopplas en känd process för separering av tryck-färg, flotation eller tvätt.
6. Förfarande enligt patentkravet 1, kännetecknat därav, att mellan utslagningen och avfärgningen kopplas en flotations- och tvättserie eller en 25 tvätt- och flotationsserie eller en kombination av tvätt-och flotationsförfaranden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3616816 | 1986-05-17 | ||
| DE19863616816 DE3616816A1 (de) | 1986-05-17 | 1986-05-17 | Verfahren zum entfaerben von in der masse gefaerbten papieren und selbstdurchschreibepapieren |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI871956A0 FI871956A0 (fi) | 1987-05-04 |
| FI871956L FI871956L (fi) | 1987-11-18 |
| FI87472B true FI87472B (fi) | 1992-09-30 |
| FI87472C FI87472C (sv) | 1993-01-11 |
Family
ID=6301146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI871956A FI87472C (sv) | 1986-05-17 | 1987-05-04 | Förfarande för avfärgning av massafärgade papper och självkopierande p apper |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0247307B1 (sv) |
| JP (1) | JPS62276094A (sv) |
| AT (1) | ATE63766T1 (sv) |
| CA (1) | CA1281509C (sv) |
| DE (2) | DE3616816A1 (sv) |
| FI (1) | FI87472C (sv) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3831668A1 (de) * | 1988-09-17 | 1990-03-22 | Escher Wyss Gmbh | Verfahren zur weissgraderhoehung von altpapier mit neutralem wasserkreislauf |
| DE19510278C2 (de) * | 1994-03-22 | 1997-03-13 | Brueggemann L Kg | Bleichmittel und dessen Verwendung zur Bleiche von Sekundärfaserstoffen für die Papierherstellung |
| JP2003073987A (ja) * | 2001-09-03 | 2003-03-12 | Oji Paper Co Ltd | 印刷古紙の中性脱墨パルプ化方法 |
| DE102020111675A1 (de) * | 2020-04-29 | 2021-11-04 | Kübler & Niethammer Papierfabrik Kriebstein AG | Verfahren zur Herstellung eines Etikettenpapiers aus abgelösten Nassetiketten |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220971A (en) * | 1975-08-12 | 1977-02-17 | Nippon Shokubai Kagaku Kogyo Co Ltd | Process for removing nitrogen oxides |
| DE2816148B1 (de) * | 1978-04-14 | 1978-10-12 | Voith Gmbh J M | Verfahren zum Wiederaufbereiten von Papieren |
| FR2482989A1 (fr) * | 1980-05-22 | 1981-11-27 | Interox | Procede pour la regeneration de vieux papiers |
| DE3309956C1 (de) * | 1983-03-19 | 1984-07-12 | Degussa Ag, 6000 Frankfurt | Verfahren zum Bleichen von Papierrohstoffen |
-
1986
- 1986-05-17 DE DE19863616816 patent/DE3616816A1/de not_active Withdrawn
-
1987
- 1987-03-19 EP EP19870104044 patent/EP0247307B1/de not_active Expired - Lifetime
- 1987-03-19 DE DE8787104044T patent/DE3770194D1/de not_active Expired - Lifetime
- 1987-03-19 AT AT87104044T patent/ATE63766T1/de not_active IP Right Cessation
- 1987-05-04 FI FI871956A patent/FI87472C/sv not_active IP Right Cessation
- 1987-05-13 JP JP62114919A patent/JPS62276094A/ja active Pending
- 1987-05-15 CA CA 537275 patent/CA1281509C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3770194D1 (de) | 1991-06-27 |
| DE3616816A1 (de) | 1987-11-19 |
| EP0247307A1 (de) | 1987-12-02 |
| FI87472C (sv) | 1993-01-11 |
| FI871956A0 (fi) | 1987-05-04 |
| FI871956L (fi) | 1987-11-18 |
| ATE63766T1 (de) | 1991-06-15 |
| EP0247307B1 (de) | 1991-05-22 |
| CA1281509C (en) | 1991-03-19 |
| JPS62276094A (ja) | 1987-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: DEGUSSA AKTIENGESELLSCHAFT |