BR8900062A - Composicao e aperfeicoamento em um processo para inibicao de incrustacao para digestores"kraft"de usinas de polpa - Google Patents
Composicao e aperfeicoamento em um processo para inibicao de incrustacao para digestores"kraft"de usinas de polpaInfo
- Publication number
- BR8900062A BR8900062A BR898900062A BR8900062A BR8900062A BR 8900062 A BR8900062 A BR 8900062A BR 898900062 A BR898900062 A BR 898900062A BR 8900062 A BR8900062 A BR 8900062A BR 8900062 A BR8900062 A BR 8900062A
- Authority
- BR
- Brazil
- Prior art keywords
- inhibition
- digestors
- incrustation
- kraft
- improvement
- Prior art date
Links
- 230000005764 inhibitory process Effects 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 title abstract 2
- 239000002655 kraft paper Substances 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
- 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 (en) | 1987-07-29 | 1988-12-29 | Process for scale inhibition for kraft digesters |
| CA000587464A CA1323470C (en) | 1987-07-29 | 1989-01-04 | Compositions for scale inhibition for kraft digesters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8900062A true BR8900062A (pt) | 1990-08-14 |
Family
ID=27168168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR898900062A BR8900062A (pt) | 1987-07-29 | 1989-01-09 | Composicao e aperfeicoamento em um processo para inibicao de incrustacao para digestores"kraft"de usinas de polpa |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4799995A (pt) |
| EP (1) | EP0375800B1 (pt) |
| AT (1) | ATE104929T1 (pt) |
| BR (1) | BR8900062A (pt) |
| CA (1) | CA1323470C (pt) |
| DE (1) | DE3889332T2 (pt) |
| ES (1) | ES2051291T3 (pt) |
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 |
| US5318772A (en) * | 1991-12-10 | 1994-06-07 | The Dow Chemical Company | Oral compositions for inhibiting calculus formation |
| US5320829A (en) * | 1991-12-10 | 1994-06-14 | The Dow Chemical Company | Oral compositions for inhibiting plaque 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 |
| MY129053A (en) * | 2001-06-06 | 2007-03-30 | Thermphos Trading Gmbh | Composition for inhibiting calcium salt scale |
| DE60238675D1 (de) * | 2001-06-06 | 2011-02-03 | Dequest Ag | Verfahren und wässerige zusammensetzung zur herstellung von verbessertem zellstoff |
| 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 (en) | 2008-01-22 | 2009-08-19 | Thermphos Trading GmbH | Surface treatment composition containing phosphonic acid compounds |
| EP2082991A1 (en) * | 2008-01-22 | 2009-07-29 | Thermphos Trading GmbH | Method of Water Treatment |
| 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 ES ES88121861T patent/ES2051291T3/es not_active Expired - Lifetime
- 1988-12-29 DE DE3889332T patent/DE3889332T2/de not_active Expired - Fee Related
- 1988-12-29 EP EP88121861A patent/EP0375800B1/en not_active Expired - Lifetime
- 1988-12-29 AT AT8888121861T patent/ATE104929T1/de not_active IP Right Cessation
-
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 |
|---|---|
| EP0375800A1 (en) | 1990-07-04 |
| EP0375800B1 (en) | 1994-04-27 |
| DE3889332D1 (de) | 1994-06-01 |
| US4799995A (en) | 1989-01-24 |
| DE3889332T2 (de) | 1994-08-11 |
| CA1323470C (en) | 1993-10-26 |
| ES2051291T3 (es) | 1994-06-16 |
| ATE104929T1 (de) | 1994-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FB19 | Grant procedure suspended (art. 19) | ||
| FB19 | Grant procedure suspended (art. 19) | ||
| FA2 | Application deemed withdrawn (art. 19(5)) |