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JPS5784794A - Scale-inhibitor for evaporating desalinator - Google Patents

Scale-inhibitor for evaporating desalinator

Info

Publication number
JPS5784794A
JPS5784794A JP55159605A JP15960580A JPS5784794A JP S5784794 A JPS5784794 A JP S5784794A JP 55159605 A JP55159605 A JP 55159605A JP 15960580 A JP15960580 A JP 15960580A JP S5784794 A JPS5784794 A JP S5784794A
Authority
JP
Japan
Prior art keywords
scale
inhibitor
copolymer
total
ratio
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP55159605A
Other languages
Japanese (ja)
Inventor
Tsuneo Tsubakimoto
Masahiro Hosoido
Hideyuki Tawara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai Co 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 Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP55159605A priority Critical patent/JPS5784794A/en
Publication of JPS5784794A publication Critical patent/JPS5784794A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination

Landscapes

  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

PURPOSE: To offer a scale-inhibitor excellent in inhibition of scale generation and dispersibility of scale deposite, which comprises a block coplymer including two kinds of repeated structural units represented by specified formulas, the ratio of the two units being in a specified range.
CONSTITUTION: The scale-inhibitor comprises a block copolymer including two repeated structural units A and B represented by the formula I(N is an integer of 5W100) and the formula II(R is H or CH3, and X is H, a monovalent or divalent metal, NH3 or an organic amine group, respectively), the weight ratio of total A to total B being 5:95W60:40. The copolymer is prepared, for instance, by copolymerizing relevant polyethylene glycol monoallylether and a methacrylic monomer with use of a polymerizing initiator and optionally neutralizing the product with an alkakine substance. If n is below the lower limit, the effect of the copolymer as an inhibitor would not be sufficient. If n exceeds the upper limit, the copolymerizing reactivity wound be lower and an effective copolymer would not be obtained. If the total ratio of A to B is out of the said range, the excellent quality would not be obtained.
COPYRIGHT: (C)1982,JPO&Japio
JP55159605A 1980-11-14 1980-11-14 Scale-inhibitor for evaporating desalinator Pending JPS5784794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159605A JPS5784794A (en) 1980-11-14 1980-11-14 Scale-inhibitor for evaporating desalinator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159605A JPS5784794A (en) 1980-11-14 1980-11-14 Scale-inhibitor for evaporating desalinator

Publications (1)

Publication Number Publication Date
JPS5784794A true JPS5784794A (en) 1982-05-27

Family

ID=15697355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159605A Pending JPS5784794A (en) 1980-11-14 1980-11-14 Scale-inhibitor for evaporating desalinator

Country Status (1)

Country Link
JP (1) JPS5784794A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618448A (en) * 1984-11-09 1986-10-21 Calgon Corporation Carboxylic/sulfonic/polyalkylene oxide polymer for use as scale, corrosion, and iron oxide deposit control
US4680135A (en) * 1984-11-09 1987-07-14 Calgon Corporation Carboxylic/sulfonic polymer and carboxylic/polyalkylene oxide polymer admixtures for use in iron oxide deposit control
US5284590A (en) * 1991-06-19 1994-02-08 Calgon Corporation Method for controlling fouling in cooling tower fill
WO2011050980A2 (en) 2009-10-30 2011-05-05 FLN FEUERLöSCHGERäTE NEURUPPIN VERTRIEBS GMBH Composition suitable for production of foam extinguishants
US7960455B2 (en) 2005-06-17 2011-06-14 Basf Aktiengesellschaft Use of copolymers containing alkylene oxide units as an additive to aqueous systems
JP2014503352A (en) * 2010-12-22 2014-02-13 ナルコ カンパニー Prevention of silica scale formation and deposition in water systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512467A (en) * 1978-07-12 1980-01-29 Matsushita Electric Ind Co Ltd Production of ultrasonic locator
JPS5950399A (en) * 1982-09-16 1984-03-23 東洋紡績株式会社 Radioactive iodine removal filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512467A (en) * 1978-07-12 1980-01-29 Matsushita Electric Ind Co Ltd Production of ultrasonic locator
JPS5950399A (en) * 1982-09-16 1984-03-23 東洋紡績株式会社 Radioactive iodine removal filter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4618448A (en) * 1984-11-09 1986-10-21 Calgon Corporation Carboxylic/sulfonic/polyalkylene oxide polymer for use as scale, corrosion, and iron oxide deposit control
US4680135A (en) * 1984-11-09 1987-07-14 Calgon Corporation Carboxylic/sulfonic polymer and carboxylic/polyalkylene oxide polymer admixtures for use in iron oxide deposit control
US5284590A (en) * 1991-06-19 1994-02-08 Calgon Corporation Method for controlling fouling in cooling tower fill
US7960455B2 (en) 2005-06-17 2011-06-14 Basf Aktiengesellschaft Use of copolymers containing alkylene oxide units as an additive to aqueous systems
WO2011050980A2 (en) 2009-10-30 2011-05-05 FLN FEUERLöSCHGERäTE NEURUPPIN VERTRIEBS GMBH Composition suitable for production of foam extinguishants
JP2014503352A (en) * 2010-12-22 2014-02-13 ナルコ カンパニー Prevention of silica scale formation and deposition in water systems
US9221700B2 (en) 2010-12-22 2015-12-29 Ecolab Usa Inc. Method for inhibiting the formation and deposition of silica scale in aqueous systems

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