BR9202005A - Processo de tratamento de aguas de refrigeracao recirculantes e processo de inibicao de formacao de depositos de sais duros e superficies de transferencia de calor - Google Patents

Processo de tratamento de aguas de refrigeracao recirculantes e processo de inibicao de formacao de depositos de sais duros e superficies de transferencia de calor

Info

Publication number
BR9202005A
BR9202005A BR929202005A BR9202005A BR9202005A BR 9202005 A BR9202005 A BR 9202005A BR 929202005 A BR929202005 A BR 929202005A BR 9202005 A BR9202005 A BR 9202005A BR 9202005 A BR9202005 A BR 9202005A
Authority
BR
Brazil
Prior art keywords
prohibition
inhibiting
formation
treatment
heat transfer
Prior art date
Application number
BR929202005A
Other languages
English (en)
Inventor
Binaifer S Khambatta
Paul R Young
Kenneth E Fulks
Original Assignee
Nalco 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24837715&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9202005(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of BR9202005A publication Critical patent/BR9202005A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • 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
    • C02F5/12—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 nitrogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paper (AREA)
BR929202005A 1991-05-28 1992-05-27 Processo de tratamento de aguas de refrigeracao recirculantes e processo de inibicao de formacao de depositos de sais duros e superficies de transferencia de calor BR9202005A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/706,469 US5171451A (en) 1991-05-28 1991-05-28 Simultaneous use of water soluble polymers with ozone in cooling water systems

Publications (1)

Publication Number Publication Date
BR9202005A true BR9202005A (pt) 1993-01-12

Family

ID=24837715

Family Applications (1)

Application Number Title Priority Date Filing Date
BR929202005A BR9202005A (pt) 1991-05-28 1992-05-27 Processo de tratamento de aguas de refrigeracao recirculantes e processo de inibicao de formacao de depositos de sais duros e superficies de transferencia de calor

Country Status (10)

Country Link
US (1) US5171451A (pt)
EP (1) EP0516305B1 (pt)
JP (1) JP3202787B2 (pt)
KR (1) KR100196966B1 (pt)
AU (1) AU641857B2 (pt)
BR (1) BR9202005A (pt)
DE (1) DE69214517T2 (pt)
ES (1) ES2095402T3 (pt)
SG (1) SG44857A1 (pt)
TW (1) TW222611B (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302356A (en) * 1992-03-04 1994-04-12 Arizona Board Of Reagents Acting On Behalf Of University Of Arizona Ultrapure water treatment system
AU3396993A (en) * 1992-04-27 1993-10-28 W.R. Grace & Co.-Conn. Calcium carbonate anti-precipitating agents
US5358640A (en) * 1992-07-20 1994-10-25 Nalco Chemical Company Method for inhibiting scale formation and/or dispersing iron in reverse osmosis systems
EP0633226B1 (en) * 1993-07-08 1998-04-22 BetzDearborn, Inc. Calcium carbonate anti-precipitating agents
US5415783A (en) * 1993-12-13 1995-05-16 Nalco Chemical Company Method for using ozone in cooling towers
US5603840A (en) * 1995-05-15 1997-02-18 Nalco Chemical Company Method of achieving microbiological control in open recirculating cooling water
US5662803A (en) * 1996-04-09 1997-09-02 Nalco Chemical Company Stabilizers for additives in aqueous systems containing ozone
JP3578257B2 (ja) * 1998-01-13 2004-10-20 栗田工業株式会社 ボイラ水処理剤
US6146538A (en) * 1998-02-23 2000-11-14 United States Filter Corporation Method of inhibiting scale formation
DE10024270A1 (de) * 2000-05-17 2001-11-22 Creavis Tech & Innovation Gmbh Antimikrobielle Polymere und Polymerblends aus polymeren Alkylacrylamiden
JP2002273478A (ja) * 2001-03-21 2002-09-24 Jsr Corp スケール防止方法
US20030111427A1 (en) * 2001-10-19 2003-06-19 Arch Chemicals, Inc. Composition for controlling the dissolving rate of solid sanitizers
US8454838B2 (en) * 2011-03-30 2013-06-04 Crystal Lagoons (Curacao) B.V. Method and system for the sustainable cooling of industrial processes
US9329159B2 (en) * 2013-03-08 2016-05-03 Ecolab Usa Inc. Methods and systems for analyzing a liquid medium
WO2017063188A1 (en) 2015-10-16 2017-04-20 Ecolab Usa Inc. Maleic anhydride homopolymer and maleic acid homopolymer and the method for preparing the same, and non-phosphorus corrosion inhibitor and the use thereof
CA3064425A1 (en) * 2017-05-24 2018-11-29 Bl Technologies, Inc. Polyacrylate polymers for low carbon steel corrosion control

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4172786A (en) * 1978-09-29 1979-10-30 Nasa Ozonation of cooling tower waters
US4936987A (en) * 1983-03-07 1990-06-26 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
JPS6270586A (ja) * 1985-09-25 1987-04-01 Kurita Water Ind Ltd 金属の腐食抑制方法
US4919821A (en) * 1986-03-21 1990-04-24 Nalco Chemical Company Modified maleic anhydride polymers and the like for use as scale inhibitors
US4997571A (en) * 1990-01-05 1991-03-05 Mogul Corporation Method of treating water

Also Published As

Publication number Publication date
SG44857A1 (en) 1997-12-19
KR100196966B1 (ko) 1999-06-15
EP0516305B1 (en) 1996-10-16
JP3202787B2 (ja) 2001-08-27
KR920021451A (ko) 1992-12-18
US5171451A (en) 1992-12-15
ES2095402T3 (es) 1997-02-16
AU1505492A (en) 1992-12-03
DE69214517D1 (de) 1996-11-21
JPH05123698A (ja) 1993-05-21
DE69214517T2 (de) 1997-03-06
TW222611B (pt) 1994-04-21
AU641857B2 (en) 1993-09-30
EP0516305A1 (en) 1992-12-02

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B25D Requested change of name of applicant approved

Owner name: ONDEO NALCO COMPANY (US)

Free format text: ALTERADO DE: NALCO CHEMICAL COMPANY

B25G Requested change of headquarter approved

Owner name: ONDEO NALCO COMPANY (US)

Free format text: SEDE ALTERADA CONFORME SOLICITADO NA PETICAO NO 057705/RJ DE 02/12/2004.

B25D Requested change of name of applicant approved

Owner name: NALCO COMPANY (US)

Free format text: ALTERADO DE: ONDEO NALCO COMPANY

B25G Requested change of headquarter approved

Owner name: NALCO COMPANY (US)

Free format text: ALTERADA A SEDE DO TITULAR CONFORME SOLICITADO NA PETICAO NO 057705/RJ DE 02/12/2004.

B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 11A,12A,13A,14A,15A,16A,17A E 18A ANUIDADES

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2277 DE 26/08/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 11A, 12A, 13A, 14A, 15A, 16A, 17A E 18A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.