COMPOSITION FOR WASHING PICKLED STEEL PLATE, METHOD FOR WASHING PICKLED STEEL PLATE BY USING SAME, AND STEEL PLATE OBTAINED THEREBY

Title:

COMPOSITION FOR WASHING PICKLED STEEL PLATE, METHOD FOR WASHING PICKLED STEEL PLATE BY USING SAME, AND STEEL PLATE OBTAINED THEREBY

Document Type and Number:

WIPO Patent Application WO/2017/105160

Kind Code:

A2

Abstract:

The present invention relates to a composition for washing a pickled steel plate, a method for washing a pickled steel plate by using the same, and a steel plate obtained thereby and, more specifically, to a composition for washing a pickled steel plate comprising a phosphoric acid ester compound, an amine-based compound, sodium carbonate, ammonium acetate, ethylene diamine tetraacetic acid(EDTA) and the remainder being water; and a method for washing a pickled steel plate by using the same.

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Inventors:

PARK RHO-BUM (KR)
SONG YON-KYUN (KR)
PARK JI-HOON (KR)
YUN HOON (KR)
CHOE SEOK-CHAN (KR)
KO KYOUNG-PIL (KR)

Application Number:

PCT/KR2016/014897

Publication Date:

June 22, 2017

Filing Date:

December 19, 2016

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

C23C26/00; C09D5/08; C09K15/32; C22C38/04; C23C2/40; C23C22/07; C23G1/08; C25D3/12; C25D3/22; C25D7/06

Foreign References:

KR20000082171A	2000-12-26
KR20060079405A	2006-08-22
US20170502A	2002-07-23
JP2001319765A	2001-10-17

Other References: