ATE104929T1 - Verfahren fuer die verhinderung von ablagerungen in zellstoffkochern. - Google Patents
Verfahren fuer die verhinderung von ablagerungen in zellstoffkochern.Info
- Publication number
- ATE104929T1 ATE104929T1 AT8888121861T AT88121861T ATE104929T1 AT E104929 T1 ATE104929 T1 AT E104929T1 AT 8888121861 T AT8888121861 T AT 8888121861T AT 88121861 T AT88121861 T AT 88121861T AT E104929 T1 ATE104929 T1 AT E104929T1
- Authority
- AT
- Austria
- Prior art keywords
- procedures
- pulp digesters
- preventing deposition
- digesters
- pulp
- Prior art date
Links
- 230000008021 deposition Effects 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002736 nonionic surfactant Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/079,307 US4799995A (en) | 1987-07-29 | 1987-07-29 | Scale inhibition formulations for kraft digesters |
EP88121861A EP0375800B1 (de) | 1987-07-29 | 1988-12-29 | Verfahren für die Verhinderung von Ablagerungen in Zellstoffkochern |
CA000587464A CA1323470C (en) | 1987-07-29 | 1989-01-04 | Compositions for scale inhibition for kraft digesters |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE104929T1 true ATE104929T1 (de) | 1994-05-15 |
Family
ID=27168168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT8888121861T ATE104929T1 (de) | 1987-07-29 | 1988-12-29 | Verfahren fuer die verhinderung von ablagerungen in zellstoffkochern. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4799995A (de) |
EP (1) | EP0375800B1 (de) |
AT (1) | ATE104929T1 (de) |
BR (1) | BR8900062A (de) |
CA (1) | CA1323470C (de) |
DE (1) | DE3889332T2 (de) |
ES (1) | ES2051291T3 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5032224A (en) * | 1989-03-27 | 1991-07-16 | Exxon Chemical Patent Inc. | Method of producing pulp |
US5302292A (en) * | 1991-05-20 | 1994-04-12 | Jamestown Chemical Company, Inc. | Method for treating ground water contamination |
US5320829A (en) * | 1991-12-10 | 1994-06-14 | The Dow Chemical Company | Oral compositions for inhibiting plaque formation |
US5318772A (en) * | 1991-12-10 | 1994-06-07 | The Dow Chemical Company | Oral compositions for inhibiting calculus formation |
JPH0699879B2 (ja) * | 1992-08-27 | 1994-12-07 | 伯東株式会社 | パルプ蒸解釜のスケール付着防止剤およびスケール付着防止方法 |
WO2002099184A2 (en) * | 2001-06-06 | 2002-12-12 | Solutia Inc. | Method and aqueous composition for the production of improved pulp |
MY129053A (en) * | 2001-06-06 | 2007-03-30 | Thermphos Trading Gmbh | Composition for inhibiting calcium salt scale |
MY138251A (en) * | 2001-06-06 | 2009-05-29 | Thermphos Trading Gmbh | Method for inhibiting calcium salt scale |
US7241363B2 (en) | 2004-06-26 | 2007-07-10 | International Paper Company | Methods to decrease scaling in digester systems |
EP2090646A1 (de) | 2008-01-22 | 2009-08-19 | Thermphos Trading GmbH | Oberflächenbehandlungszusammensetzung mit Phosphonsäureverbindungen |
EP2082991A1 (de) * | 2008-01-22 | 2009-07-29 | Thermphos Trading GmbH | Verfahren zur Wasseraufbereitung |
US9447657B2 (en) | 2010-03-30 | 2016-09-20 | The Lubrizol Corporation | System and method for scale inhibition |
US8986504B1 (en) | 2013-10-25 | 2015-03-24 | International Paper Company | Digester apparatus |
DE102014109637B4 (de) * | 2014-07-09 | 2021-02-25 | Zschimmer & Schwarz Mohsdorf GmbH & Co. KG | Nichtwässrige Lösungen von Alkalisalzen von Aminoalkylenphosphonsäuren und Verfahren zu deren Herstellung |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3434969A (en) * | 1967-08-11 | 1969-03-25 | Calgon Corp | Scale inhibiting |
ES377391A1 (es) * | 1969-05-17 | 1973-02-01 | Benckiser Gmbh Joh A | Procedimiento para impedir deposiciones petrificantes en sistemas acuosos. |
IT951279B (it) * | 1971-07-01 | 1973-06-30 | Benckiser Gmbh Joh A | Processo per impedire il formarsi di depositi che producono incrosta zioni nei sistemi acquosi |
DE2408523C3 (de) * | 1974-02-22 | 1978-05-18 | Benckiser-Knapsack Gmbh, 6802 Ladenburg | Verfahren zur Verhütung von Harzausscheidungen bei der Papierherstellung |
US3992249A (en) * | 1974-04-08 | 1976-11-16 | American Cyanamid Company | Control of pulp-paper mill pitch deposits |
US4003842A (en) * | 1975-07-14 | 1977-01-18 | American Cyanamid Company | Corrosion and scale inhibitors for industrial recirculating cooling water systems |
US4184912A (en) * | 1976-08-09 | 1980-01-22 | Nalco Chemical Company | Pitch control method |
US4105573A (en) * | 1976-10-01 | 1978-08-08 | The Procter & Gamble Company | Dishwasher detergent composition |
CA1123307A (en) * | 1977-05-26 | 1982-05-11 | Nalco Chemical Company | Surfactant chelating scale inhibitor and dispersant for wet scrubber deposit control |
US4240921A (en) * | 1979-03-28 | 1980-12-23 | Stauffer Chemical Company | Liquid cleaning concentrate |
US4253912A (en) * | 1979-07-16 | 1981-03-03 | Betz Laboratories, Inc. | Deposit control through the use of oligomeric phosphonic acid derivatives |
US4255309A (en) * | 1979-08-16 | 1981-03-10 | Betz Laboratories, Inc. | Polyacrylic acids and methyl vinyl ether/maleic anhydride copolymers as soft scale inhibitors |
US4406811A (en) * | 1980-01-16 | 1983-09-27 | Nalco Chemical Company | Composition and method for controlling corrosion in aqueous systems |
DE3447686C1 (de) * | 1984-12-28 | 1986-10-30 | Jörg Dipl.-Ing. Dr. Seewalchen Oberkofler | Verfahren zur Herabsetzung der Schleimbildung in Anlagen mit einem Wasserkreislauf und Anwendung des Verfahrens |
GB8703128D0 (en) * | 1987-02-11 | 1987-03-18 | Donmarn Ltd | Anti-scaling compounds |
US4806259A (en) * | 1987-06-15 | 1989-02-21 | The B. F. Goodrich Company | Membrane cleaning compositions containing phosphorous compounds |
-
1987
- 1987-07-29 US US07/079,307 patent/US4799995A/en not_active Expired - Fee Related
-
1988
- 1988-12-29 DE DE3889332T patent/DE3889332T2/de not_active Expired - Fee Related
- 1988-12-29 ES ES88121861T patent/ES2051291T3/es not_active Expired - Lifetime
- 1988-12-29 AT AT8888121861T patent/ATE104929T1/de not_active IP Right Cessation
- 1988-12-29 EP EP88121861A patent/EP0375800B1/de not_active Expired - Lifetime
-
1989
- 1989-01-04 CA CA000587464A patent/CA1323470C/en not_active Expired - Fee Related
- 1989-01-09 BR BR898900062A patent/BR8900062A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE3889332T2 (de) | 1994-08-11 |
ES2051291T3 (es) | 1994-06-16 |
EP0375800B1 (de) | 1994-04-27 |
BR8900062A (pt) | 1990-08-14 |
US4799995A (en) | 1989-01-24 |
EP0375800A1 (de) | 1990-07-04 |
CA1323470C (en) | 1993-10-26 |
DE3889332D1 (de) | 1994-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE104929T1 (de) | Verfahren fuer die verhinderung von ablagerungen in zellstoffkochern. | |
FI902845A0 (fi) | Menetelmä 4-amino-1-hydroksibutylideeni-1,1-bisfosfonihapon tai sen suolojen valmistamiseksi | |
DK199489A (da) | Fremgangsmaade til fremstilling af n-t-alkyl-1,2-diacylhydraziner | |
DE69027818D1 (de) | Verfahren zur Reinigung von Aminomethylenphosphonsäuren | |
DE68916754D1 (de) | Verfahren zur Herstellung von optisch aktiver 3-Hydroxybuttersäure. | |
OA06973A (fr) | Procédé pour préparer enzymatiquement l'acide amino-2 méthylphosphino-4 butiryque- (L). | |
PT86233A (fr) | Procede de preparation d:une variant de l:hirudine | |
ES525463A1 (es) | Procedimiento para la preparacion de acidos alfa-arilalcanoicos | |
IL80355A0 (en) | Process for the production of aliphatic phosphonic acids | |
TNSN89042A1 (fr) | Procede pour la preparation d'esters d'acide 4-halogeno-3-oxo-2- alcoxyimino-butyrique | |
PT87091A (pt) | Process for preparing 3(5)-cyano-1h-pyrazole-4-carboxylic acid esters | |
SE8404476L (sv) | Brend kalk med forlengd hydratiseringstid | |
IT1212408B (it) | Processo per la produzione di acidi alcanoici alfa sostituiti. | |
IT8621359A0 (it) | Processo per la sintesi di acidi carbossilici. | |
FR2595692B1 (fr) | Procede pour la production d'acide naphtalenedicarboxylique en meme temps que d'acide trimellitique | |
ATE43342T1 (de) | Verfahren zur herstellung von hydrogeno- oder halogenosilanen. | |
FR2615507B1 (fr) | Procede de fabrication d'un compost | |
DE3887465D1 (de) | Verfahren zur Herstellung von Säureanhydriden. | |
GR3007199T3 (de) | ||
ES2094940T3 (es) | Procedimiento para la purificacion de acidos en bruto constituidos por acidos carboxilicos alfa-beta-monoetilenicamente insaturados. | |
RO96550A2 (ro) | Procedeu de preparare a unor esteri ai acidului alfa-naftilacetic | |
ES2038335T3 (es) | Procedimiento para preparar mezclas e/z de derivados de acido 2-(biciclo(3.3.0)octan-3-iliden)-acetico con porcion predominante de e o de z. | |
DE3668625D1 (de) | Verfahren zur hydrolyse von substituierten methylendiphosphonsauren estern. | |
IT8121236A0 (it) | Processo per la produzione di l-aminoacidi usando microorganismi immobilizzati. | |
DK0547124T3 (da) | Fremgangsmåde til fremstilling af E/Z-blandinger af 2-(6-alkyl-bicyklo-(3.3.0)-octan-3-yliden)- eddikesyreestere med en overvejende andel af E-isomeren |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |