GB1125656A - On-stream cleaning of wood chip digesters - Google Patents
On-stream cleaning of wood chip digestersInfo
- Publication number
- GB1125656A GB1125656A GB157/67A GB15767A GB1125656A GB 1125656 A GB1125656 A GB 1125656A GB 157/67 A GB157/67 A GB 157/67A GB 15767 A GB15767 A GB 15767A GB 1125656 A GB1125656 A GB 1125656A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chelating agent
- wood chip
- jan
- injected
- recirculation system
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 239000002023 wood Substances 0.000 title abstract 2
- 238000004140 cleaning Methods 0.000 title 1
- 239000002738 chelating agent Substances 0.000 abstract 4
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- -1 alkali metal salts Chemical class 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 229960001484 edetic acid Drugs 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000002002 slurry Substances 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/226—Use of compounds avoiding scale formation
Landscapes
- Paper (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51798366A | 1966-01-03 | 1966-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1125656A true GB1125656A (en) | 1968-08-28 |
Family
ID=24062050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB157/67A Expired GB1125656A (en) | 1966-01-03 | 1967-01-02 | On-stream cleaning of wood chip digesters |
Country Status (5)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1011503A3 (fr) * | 1997-10-17 | 1999-10-05 | Solvay Interox | Fabrication de pate a papier chimique. |
| MY138251A (en) * | 2001-06-06 | 2009-05-29 | Thermphos Trading Gmbh | Method for inhibiting calcium salt scale |
| DK1392914T3 (da) * | 2001-06-06 | 2011-03-28 | Dequest Ag | Fremgangsmåde og vandig sammensætning til fremstilling af forbedret pulp |
| MY129053A (en) * | 2001-06-06 | 2007-03-30 | Thermphos Trading Gmbh | Composition for inhibiting calcium salt scale |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL90306C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1951-02-28 | |||
| FR1145782A (fr) * | 1956-02-18 | 1957-10-29 | Saint Gobain | Perfectionnements au procédé de fabrication des pâtes cellulosiques par cuisson |
| FR72957E (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1956-11-05 | |||
| US3071504A (en) * | 1958-05-12 | 1963-01-01 | Us Movidyn Corp | Paper mill boil out methods and compositions |
| US3143458A (en) * | 1961-10-24 | 1964-08-04 | Stevens Paper Mills Inc | Method of making electrical paper |
-
1966
- 1966-01-03 US US517983A patent/US3448003A/en not_active Expired - Lifetime
- 1966-12-27 NO NO166158A patent/NO118527B/no unknown
- 1966-12-30 FI FI663503A patent/FI48484C/fi active
-
1967
- 1967-01-02 GB GB157/67A patent/GB1125656A/en not_active Expired
- 1967-01-03 DE DE1967D0051935 patent/DE1692845B2/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE1692845B2 (de) | 1977-06-02 |
| NO118527B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-01-05 |
| DE1692845A1 (de) | 1971-10-21 |
| FI48484B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-01 |
| FI48484C (fi) | 1974-10-10 |
| US3448003A (en) | 1969-06-03 |
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