Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

98327 DEGRADABLE CHELATING AGENTS FOR DECONTAMINATION AND CHEMICAL CLEANING

Picture for 98327 DEGRADABLE CHELATING AGENTS FOR
Available for download
Product Number: 51300-98327-SG
ISBN: 98327 1998 CP
Author: M.U.Gmurczyk, S.A.Olszowka, L.May, A. Barkatt
$0.00
$20.00
$20.00
To facilitate the treatment of spent decontamination and chemical cleaning solutions, this study explored the feasibility of replacing stable completing agents (such as EDTA) by completing agents which can be readily decomposed using chemical or thermal treatment. Acetohydroxarnic acid was found to be a promising candidate for such a role. Preliminary experiments carried out on actual corrosion products from steam generators indicated that 15% acetohydroxamic acid solutions had similar effectiveness to that of the EPNSGOG iron solvent (which contains 15°AEDTA) with respect to certain magnetite-tich deposits. The addition of malonic acid and hydrazine enhanced the dissolution of magnetite in acetohydroxamic acid solution. EDTA and acetohydroxamic acid were similarly effective in the decontamination of stainless steel surfaces superficially contaminated with 60Co. It was found that acetohydroxamic acid in spent solvents can be completely decomposed through acid-catalyzed hydrolysis using nitricor hydrochloric acid. Complete decomposition can also be achieved through oxidation of acetohydroxamic acid with active manganese dioxideor potassium permanganate. Regeneration of spent, contaminated acetohydroxamic acid solutions was demonstrated using a cation exchangeres into remove ferricor ferrousions from the solution. Cobalt ions were removed from such solutions using charcoal. Based on the experimental findings, acetohydroxamic acid solutions appear to be promising candidates for use in decontamination or chemical cleaning, followed by decomposition or regeneration of the spent solutions. Keywords: decontamination, chemical cleaning, secondary waste,completing agents, degradable agents, 60Co, acetohydroxamic acid, waste reduction, chemical cleaning solvent regeneration
To facilitate the treatment of spent decontamination and chemical cleaning solutions, this study explored the feasibility of replacing stable completing agents (such as EDTA) by completing agents which can be readily decomposed using chemical or thermal treatment. Acetohydroxarnic acid was found to be a promising candidate for such a role. Preliminary experiments carried out on actual corrosion products from steam generators indicated that 15% acetohydroxamic acid solutions had similar effectiveness to that of the EPNSGOG iron solvent (which contains 15°AEDTA) with respect to certain magnetite-tich deposits. The addition of malonic acid and hydrazine enhanced the dissolution of magnetite in acetohydroxamic acid solution. EDTA and acetohydroxamic acid were similarly effective in the decontamination of stainless steel surfaces superficially contaminated with 60Co. It was found that acetohydroxamic acid in spent solvents can be completely decomposed through acid-catalyzed hydrolysis using nitricor hydrochloric acid. Complete decomposition can also be achieved through oxidation of acetohydroxamic acid with active manganese dioxideor potassium permanganate. Regeneration of spent, contaminated acetohydroxamic acid solutions was demonstrated using a cation exchangeres into remove ferricor ferrousions from the solution. Cobalt ions were removed from such solutions using charcoal. Based on the experimental findings, acetohydroxamic acid solutions appear to be promising candidates for use in decontamination or chemical cleaning, followed by decomposition or regeneration of the spent solutions. Keywords: decontamination, chemical cleaning, secondary waste,completing agents, degradable agents, 60Co, acetohydroxamic acid, waste reduction, chemical cleaning solvent regeneration
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 96522 CHEMICAL CLEANING AND PASSIVATING WITH
Available for download

96522 CHEMICAL CLEANING AND PASSIVATING WITH VARIOUS METALLURGICAL CONCERNS IN HVAC SYSTEMS

Product Number: 51300-96522-SG
ISBN: 96522 1996 CP
Author: T.R. Troxil
$20.00
Picture for Stochastic Modeling of Non-Uniform Corrosion of Carbon and Low Alloy Steel during Chemical Cleaning
Available for download

51317--9489-Stochastic Modeling of Non-Uniform Corrosion of Carbon and Low Alloy Steel during Chemical Cleaning

Product Number: 51317--9489-SG
ISBN: 9489 2017 CP
Author: Charles Marks
Publication Date: 2017
$20.00

A stochastic model of the overall cleaning process and consequent corrosion was developed for an ethylenediaminetetraacetic acid (EDTA) based cleaning process. The model includes: (1) a chemical reaction engineering model(s), (2) a finite-element analysis (FEA) and (3) a Markov model of non-uniform corrosion sites.
Picture for 03650 A METHODOLOGY FOR THE EVALUATION OF CHEMICAL
Available for download

03650 A METHODOLOGY FOR THE EVALUATION OF CHEMICAL TREATMENTS USED IN CLEANING OF REFINERY COMPONENTS AND EQUIPMENTS

Product Number: 51300-03650-SG
ISBN: 03650 2003 CP
Author: M. Ramírez and A. Viloria
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support