JPS5524531A - Scale preventive treating method - Google Patents

Scale preventive treating method

Info

Publication number
JPS5524531A
JPS5524531A JP9711078A JP9711078A JPS5524531A JP S5524531 A JPS5524531 A JP S5524531A JP 9711078 A JP9711078 A JP 9711078A JP 9711078 A JP9711078 A JP 9711078A JP S5524531 A JPS5524531 A JP S5524531A
Authority
JP
Japan
Prior art keywords
polyphosphate
pref
concn
scale
water
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.)
Granted
Application number
JP9711078A
Other languages
Japanese (ja)
Other versions
JPS5811279B2 (en
Inventor
Yoshinari Kawasaki
Sadaoki Kaneda
Sakae Katayama
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.)
Katayama Chemical Inc
Original Assignee
Katayama Chemical Inc
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 Katayama Chemical Inc filed Critical Katayama Chemical Inc
Priority to JP53097110A priority Critical patent/JPS5811279B2/en
Publication of JPS5524531A publication Critical patent/JPS5524531A/en
Publication of JPS5811279B2 publication Critical patent/JPS5811279B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a superior scale preventive effect with a small amt. of additives by adding a polyphosphate and an acrylic acid type polymer in combination to treated water contg. high concn. salts, e.g. water after desulfurization or denitration from an iron mill or a chemical plant.
CONSTITUTION: In order to prevent formation of scale a polyphosphate such as sodium hexametaphosphate and an acrylic acid type polymer pref. having a MW above 20000 are added to water, after industrial treatment, having such a high salts concn. as a M alkalinity above 1000ppm and an electric conductivity above 10000 micromho/cm as well as showing a marked tendency to form scale. The ratio of the polyphosphate to the polymer is 1:5W5:1, pref. 1:3W3:1. The concn. of the additives is 0.1W100, pref. 1W30ppm in total.
COPYRIGHT: (C)1980,JPO&Japio
JP53097110A 1978-08-08 1978-08-08 Scale prevention treatment method Expired JPS5811279B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53097110A JPS5811279B2 (en) 1978-08-08 1978-08-08 Scale prevention treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53097110A JPS5811279B2 (en) 1978-08-08 1978-08-08 Scale prevention treatment method

Publications (2)

Publication Number Publication Date
JPS5524531A true JPS5524531A (en) 1980-02-21
JPS5811279B2 JPS5811279B2 (en) 1983-03-02

Family

ID=14183438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53097110A Expired JPS5811279B2 (en) 1978-08-08 1978-08-08 Scale prevention treatment method

Country Status (1)

Country Link
JP (1) JPS5811279B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197334A (en) * 1981-05-26 1982-12-03 Komatsu Ltd Electric oil pressure controller for construction vehicle
US4640793A (en) * 1984-02-14 1987-02-03 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
EP0313157A2 (en) * 1987-10-23 1989-04-26 Calgon Corporation Process for controlling calcium oxalate scale over a wide pH range
US4936987A (en) * 1983-03-07 1990-06-26 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
JP2001062467A (en) * 1999-08-25 2001-03-13 Katayama Chem Works Co Ltd Treatment of dust collecting water
JP2001070987A (en) * 1999-09-03 2001-03-21 Katayama Chem Works Co Ltd Water treatment method
CN110803781A (en) * 2018-08-06 2020-02-18 中国石油化工股份有限公司 Composite corrosion and scale inhibitor containing polyphosphate, application thereof and method for inhibiting corrosion of circulating cooling water containing sulfur

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57197334A (en) * 1981-05-26 1982-12-03 Komatsu Ltd Electric oil pressure controller for construction vehicle
US4936987A (en) * 1983-03-07 1990-06-26 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
US4640793A (en) * 1984-02-14 1987-02-03 Calgon Corporation Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers
EP0313157A2 (en) * 1987-10-23 1989-04-26 Calgon Corporation Process for controlling calcium oxalate scale over a wide pH range
JP2001062467A (en) * 1999-08-25 2001-03-13 Katayama Chem Works Co Ltd Treatment of dust collecting water
JP4621820B2 (en) * 1999-08-25 2011-01-26 株式会社片山化学工業研究所 Dust collection method
JP2001070987A (en) * 1999-09-03 2001-03-21 Katayama Chem Works Co Ltd Water treatment method
CN110803781A (en) * 2018-08-06 2020-02-18 中国石油化工股份有限公司 Composite corrosion and scale inhibitor containing polyphosphate, application thereof and method for inhibiting corrosion of circulating cooling water containing sulfur
CN110803781B (en) * 2018-08-06 2021-07-30 中国石油化工股份有限公司 Composite corrosion and scale inhibitor containing polyphosphate, application thereof and method for inhibiting corrosion of circulating cooling water containing sulfur

Also Published As

Publication number Publication date
JPS5811279B2 (en) 1983-03-02

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