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 JP1394976ApriorityCriticalpatent/JPS5297395A/en
Publication of JPS5297395ApublicationCriticalpatent/JPS5297395A/en
Publication of JPS5516092B2publicationCriticalpatent/JPS5516092B2/ja
PURPOSE: To completely remove organic matter in extracted phosphoric acid whose concentration of H3PO4 is maintained at high level by contacting the phosphoric acid with chlorate at relatively low temperature and reducing the remaining chlorate so as to obtain phosphoric acid which will not be colored by heating after the treatment.
COPYRIGHT: (C)1977,JPO&Japio
JP1394976A1976-02-131976-02-13Removal of organic matter in phosphoric acid
GrantedJPS5297395A
(en)