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.)
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.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
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 Toyo Soda Manufacturing Co LtdfiledCriticalToyo Soda Manufacturing Co Ltd
Priority to JP7805578ApriorityCriticalpatent/JPS5433894A/en
Publication of JPS5433894ApublicationCriticalpatent/JPS5433894A/en
PURPOSE: To provide the subject process comprising the steps of : bringing impure phosphoric acid into counterflow contact with aliphatic alcohol having limited solubility relative to water, and bringing the phosphoric acid containing extraction phase into contact with an aqueous solution of phosphoric acid for washing, and subjecting a divalent iron salt to addition reaction, thereby producing phosphoric acid of high purity, containing no vanadium.
COPYRIGHT: (C)1979,JPO&Japio
JP7805578A1978-06-291978-06-29Process for purifying phosphoric acid
PendingJPS5433894A
(en)