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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 polpa

Info

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
Application number
BR898900062A
Other languages
English (en)
Inventor
Druce K Crump
Lance A Cooper
Thomas M Hopkins
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of BR8900062A publication Critical patent/BR8900062A/pt

Links

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)
BR898900062A 1987-07-29 1989-01-09 Composicao e aperfeicoamento em um processo para inibicao de incrustacao para digestores"kraft"de usinas de polpa BR8900062A (pt)

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)

* Cited by examiner, † Cited by third party
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
MY138251A (en) * 2001-06-06 2009-05-29 Thermphos Trading Gmbh Method for inhibiting calcium salt scale
CN1282800C (zh) * 2001-06-06 2006-11-01 索罗蒂亚公司 改良浆泊的生产方法
MY129053A (en) * 2001-06-06 2007-03-30 Thermphos Trading Gmbh Composition 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CA1323470C (en) 1993-10-26
EP0375800A1 (en) 1990-07-04
US4799995A (en) 1989-01-24
DE3889332D1 (de) 1994-06-01
EP0375800B1 (en) 1994-04-27
ES2051291T3 (es) 1994-06-16
ATE104929T1 (de) 1994-05-15
DE3889332T2 (de) 1994-08-11

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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))