JPS57149813A - Treatment of phosphoric acid extracted solution by ion exchange - Google Patents

Treatment of phosphoric acid extracted solution by ion exchange

Info

Publication number
JPS57149813A
JPS57149813A JP56031252A JP3125281A JPS57149813A JP S57149813 A JPS57149813 A JP S57149813A JP 56031252 A JP56031252 A JP 56031252A JP 3125281 A JP3125281 A JP 3125281A JP S57149813 A JPS57149813 A JP S57149813A
Authority
JP
Japan
Prior art keywords
phosphoric acid
acid
agent
regenerating
iron
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
JP56031252A
Other languages
Japanese (ja)
Inventor
Kensaku Maruyama
Yorihisa Kitagawa
Hiroyuki Momotake
Toshiharu Oishi
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals 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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP56031252A priority Critical patent/JPS57149813A/en
Publication of JPS57149813A publication Critical patent/JPS57149813A/en
Pending legal-status Critical Current

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  • Treatment Of Water By Ion Exchange (AREA)

Abstract

PURPOSE: To manufacture high purity phosphoric acid having an extremely low iron ion content by adding an iron masking agent to a regenerating agent for regenerating a strongly acidic cation exchange resin used to remove traces of cations from wet process phosphoric acid.
CONSTITUTION: In a method or removing traces of cations contained in an extracted soln. composed chiefly of phosphoric acid, an org. solvent and water with a strongly acidic cation exchange resin, an iron masking agent is added to a regenerating agent for the resin. As the regeneratig agent an aqueous sulfuric acid soln. with about 5W15wt% concn. is used in general. As the masking agent 1 or ≥2 kinds of compounds selected from citric acid, oxalic acid, thiocyanic acid, tartaric acid, EDTA and phosphoric acid are used by about 2W10 times the necessary theoretical amount. Thus, iron ions can be prevented from entering the product from the regenerating agent.
COPYRIGHT: (C)1982,JPO&Japio
JP56031252A 1981-03-06 1981-03-06 Treatment of phosphoric acid extracted solution by ion exchange Pending JPS57149813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56031252A JPS57149813A (en) 1981-03-06 1981-03-06 Treatment of phosphoric acid extracted solution by ion exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56031252A JPS57149813A (en) 1981-03-06 1981-03-06 Treatment of phosphoric acid extracted solution by ion exchange

Publications (1)

Publication Number Publication Date
JPS57149813A true JPS57149813A (en) 1982-09-16

Family

ID=12326163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56031252A Pending JPS57149813A (en) 1981-03-06 1981-03-06 Treatment of phosphoric acid extracted solution by ion exchange

Country Status (1)

Country Link
JP (1) JPS57149813A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01258749A (en) * 1988-04-08 1989-10-16 Mitsui Toatsu Chem Inc Regenerating agent for cation exchange resin and regenerating process using said regenerating agent
WO2024075406A1 (en) * 2022-10-06 2024-04-11 オルガノ株式会社 Method for producing cation exchange resin and method for refining organic acid solution

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01258749A (en) * 1988-04-08 1989-10-16 Mitsui Toatsu Chem Inc Regenerating agent for cation exchange resin and regenerating process using said regenerating agent
JPH0511494B2 (en) * 1988-04-08 1993-02-15 Mitsui Toatsu Chemicals
WO2024075406A1 (en) * 2022-10-06 2024-04-11 オルガノ株式会社 Method for producing cation exchange resin and method for refining organic acid solution

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