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.)
Expired
Application number
GB2709563A
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.)
Onoda Cement Co Ltd
Original Assignee
Onoda Cement 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 Onoda Cement Co LtdfiledCriticalOnoda Cement Co Ltd
Publication of GB1036207ApublicationCriticalpatent/GB1036207A/en
Alkali metal orthophosphates are made by reacting orthophosphoric acid with potassium chloride and/or sodium chloride in the presence of at least one amine selected from primary, secondary and tertiary amines, the amine or amines containing from 1 to 5 carbon atoms in each of its or their substituent alkyl groups. The amine may be unsubstituted or it may be an alkanolamine; it is preferably added to a mixture of the acid and the sodium and/or potassium chloride. An alcohol, ether or ketone may be added to the reaction mixture. The orthophosphate product is filtered off and the mother liquor treated with alkali to recover the amine.
GB2709563A1962-07-121963-07-09A method for the manufacture of alkali metal orthophosphates
ExpiredGB1036207A
(en)
A procedure for the obtaining of license carbonate of elevated purity, particularly of brutous lyric chloride, in aquatic solution (Machine-translation by Google Translate, not legally binding)