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)
Portuguese (pt)
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 (cg-RX-API-DMAC7.html)
EP (1) EP0516305B1 (cg-RX-API-DMAC7.html)
JP (1) JP3202787B2 (cg-RX-API-DMAC7.html)
KR (1) KR100196966B1 (cg-RX-API-DMAC7.html)
AU (1) AU641857B2 (cg-RX-API-DMAC7.html)
BR (1) BR9202005A (cg-RX-API-DMAC7.html)
DE (1) DE69214517T2 (cg-RX-API-DMAC7.html)
ES (1) ES2095402T3 (cg-RX-API-DMAC7.html)
SG (1) SG44857A1 (cg-RX-API-DMAC7.html)
TW (1) TW222611B (cg-RX-API-DMAC7.html)

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
ES2115011T3 (es) * 1993-07-08 1998-06-16 Betzdearborn Inc Agentes anti-precipitantes para carbonato calcico.
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
KR102477324B1 (ko) * 2017-05-24 2022-12-15 비엘 테크놀러지스 인크. 저탄소 강의 부식 억제를 위한 폴리아크릴레이트 중합체

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
AU1505492A (en) 1992-12-03
AU641857B2 (en) 1993-09-30
DE69214517T2 (de) 1997-03-06
JP3202787B2 (ja) 2001-08-27
EP0516305A1 (en) 1992-12-02
SG44857A1 (en) 1997-12-19
JPH05123698A (ja) 1993-05-21
KR920021451A (ko) 1992-12-18
KR100196966B1 (ko) 1999-06-15
ES2095402T3 (es) 1997-02-16
TW222611B (cg-RX-API-DMAC7.html) 1994-04-21
EP0516305B1 (en) 1996-10-16
DE69214517D1 (de) 1996-11-21
US5171451A (en) 1992-12-15

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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

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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.