BR112015032104A2 - iron scale inhibitor and method of iron scale inhibition in a steam generator using it - Google Patents

iron scale inhibitor and method of iron scale inhibition in a steam generator using it

Info

Publication number
BR112015032104A2
BR112015032104A2 BR112015032104A BR112015032104A BR112015032104A2 BR 112015032104 A2 BR112015032104 A2 BR 112015032104A2 BR 112015032104 A BR112015032104 A BR 112015032104A BR 112015032104 A BR112015032104 A BR 112015032104A BR 112015032104 A2 BR112015032104 A2 BR 112015032104A2
Authority
BR
Brazil
Prior art keywords
iron scale
iron
salt
inhibitor
steam generator
Prior art date
Application number
BR112015032104A
Other languages
Portuguese (pt)
Other versions
BR112015032104B1 (en
Inventor
Shimura Yukimasa
Endou Yuu
Original Assignee
Kurita Water Ind Ltd
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 Kurita Water Ind Ltd filed Critical Kurita Water Ind Ltd
Publication of BR112015032104A2 publication Critical patent/BR112015032104A2/en
Publication of BR112015032104B1 publication Critical patent/BR112015032104B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/52—Washing-out devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/56—Boiler cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

a presente invenção refere-se ao fornecimento de um inibi-dor de carepa de ferro que exibe propriedades corrosivas baixas em relação ao material de aço em uma área de temperatura alta e estabi-lidade térmica alta em condições de temperatura alta, e que inibe ca-repa de ferro em uma instalação geradora de vapor. o inibidor de ca-repa de ferro é configurado de modo a conter um polimetacrilato e/ou sal do mesmo, e um copolímero de ácido acrílico/ácido 2-acrilamido-2-metilpropanossulfônico e/ou sal do mesmo, e sendo que o copolímero e/ou sal do mesmo estão em uma razão de massa de 1:1-10:1.The present invention relates to the provision of an iron scale inhibitor which exhibits low corrosive properties relative to the steel material in an area of high temperature and high thermal stability under high temperature conditions, and which inhibits corrosion. iron in a steam generating facility. the iron cap inhibitor is configured to contain a polymethacrylate and / or salt thereof, and a copolymer of acrylic acid / 2-acrylamido-2-methylpropanesulfonic acid and / or salt thereof, and the copolymer being and / or salt thereof are in a mass ratio of 1: 1-10: 1.

BR112015032104-6A 2013-07-04 2014-07-04 IRON SKIN INHIBITOR AND IRON SKIN INHIBITION METHOD IN STEAM GENERATING INSTALLATION USING IT BR112015032104B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013-140930 2013-07-04
JP2013140930A JP5776734B2 (en) 2013-07-04 2013-07-04 Iron scale inhibitor and method for preventing iron scale of steam generating equipment using the same
PCT/JP2014/067875 WO2015002286A1 (en) 2013-07-04 2014-07-04 Iron-scale inhibitor and steam-generating facility iron-scale inhibiting method using same

Publications (2)

Publication Number Publication Date
BR112015032104A2 true BR112015032104A2 (en) 2017-07-25
BR112015032104B1 BR112015032104B1 (en) 2021-11-30

Family

ID=52143855

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015032104-6A BR112015032104B1 (en) 2013-07-04 2014-07-04 IRON SKIN INHIBITOR AND IRON SKIN INHIBITION METHOD IN STEAM GENERATING INSTALLATION USING IT

Country Status (3)

Country Link
JP (1) JP5776734B2 (en)
BR (1) BR112015032104B1 (en)
WO (1) WO2015002286A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7954737B2 (en) 2007-10-04 2011-06-07 Fellowes, Inc. Shredder thickness with anti-jitter feature
JP6914676B2 (en) * 2017-03-09 2021-08-04 アクアス株式会社 Scale remover and scale remover
JP6249123B1 (en) * 2017-04-12 2017-12-20 栗田工業株式会社 Scale inhibitor and scale prevention method
JP7468570B2 (en) * 2022-05-27 2024-04-16 栗田工業株式会社 Steam condensate recovery method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59162999A (en) * 1983-03-07 1984-09-13 カルゴン・コ−ポレ−シヨン Synergistic scale and corrosion control mixture containing carboxylic acid/sulfonic acid polymer
JPS62144741A (en) * 1985-12-18 1987-06-27 Kurita Water Ind Ltd Iron dispersant for boiler water
NZ226331A (en) * 1987-10-05 1991-08-27 Calgon Corp Method of inhibiting corrosion of metallic surfaces in aqueous systems using acrylic polymers and zinc ions; compositions therefor
JPH01299699A (en) * 1988-05-30 1989-12-04 Hakutou Kagaku Kk Non-phosphorus water treating agent for preventing corrosion and scale of metals in water system
JP5531413B2 (en) * 2009-01-22 2014-06-25 栗田工業株式会社 Boiler water treatment agent, water treatment method, and stabilization method during storage or distribution of boiler water treatment agent

Also Published As

Publication number Publication date
JP2015013252A (en) 2015-01-22
JP5776734B2 (en) 2015-09-09
BR112015032104B1 (en) 2021-11-30
WO2015002286A1 (en) 2015-01-08

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/07/2014, OBSERVADAS AS CONDICOES LEGAIS.