Published October 2015 | Version v1
Miscellaneous Metadata-only

Priliminary study on the regeneration of spent electro-decontamination solution using phosphoric acid and oxalic acid

Creators

  • 1. Kyungpook National University, Daegu (Korea, Republic of)

Description

In this study, different amount of (fe(0)) were dissolve into different strength of phosphoric (H3PO4) acid and the optimum solubility was observed at 0.89M Fe(0) into 4M of H3PO4 acid. Different concentration of oxalic acid was added to determine the optimum precipitated condition. The dissolution kinetics of Fe(0) into H3PO4 acid was investigated at 40-50 degree Celsius. Iron oxides such as magnetite and hematite that may be formed on the surface of nuclear waste were also dissolved into the H3PO4 acid and the optimum solubility for magnetite is 0.005M while that for hematite is 0.02M in 8M H3PO4 acid, respectively. Fe(0) powder has been dissolved to 4M H3PO4 acid at 50 degree Celsius and 1M oxalic acid has been considered as the optimum condition of precipitation with Fe-oxalate. Optimum solubility for magnetite and hematite found at 0.005M and 0.02M respectively into 8M H3PO4 acid

Part of:
Proceedings of the Conference and Symposium Korean Radioactive Waste Society Autumn Meeting 2015

Additional details

Publishing Information

Publisher
KRS
Imprint Place
Daejeon (Korea, Republic of)
Imprint Title
Proceedings of the Conference and Symposium Korean Radioactive Waste Society Autumn Meeting 2015
Imprint Pagination
542 p.
Journal Page Range
p. 465-466

Conference

Title
2015 Autumn Meeting of Korean Radioactive Waste Society
Dates
14-16 Oct 2015
Place
Daejeon (Korea, Republic of)

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
49064088
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
DECONTAMINATION; HEMATITE; OXALIC ACID; PHOSPHONIC ACIDS; POWDERS; PRECIPITATION; SOLUBILITY
Descriptors DEC
CARBOXYLIC ACIDS; CLEANING; DICARBOXYLIC ACIDS; IRON ORES; MINERALS; ORES; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXIDE MINERALS; SEPARATION PROCESSES

Optional Information

Notes
2 refs, 2 figs, 2 tabs