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
GB4140458A
Inventor
Louis Harmon Cloak
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.)
Fisons Industrial Chemicals Ltd
Original Assignee
Whiffen and Sons 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 Whiffen and Sons LtdfiledCriticalWhiffen and Sons Ltd
Priority to GB4140458ApriorityCriticalpatent/GB869306A/en
Publication of GB869306ApublicationCriticalpatent/GB869306A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Ammeline is prepared by reacting urea and/or biuret with dicyandiamide in solution in a phenol at an elevated temperature, and removing the precipitated ammeline. The reaction temperature is preferably above 150 DEG C., e.g. 160-170 DEG C. Suitable phenols are phenol, a cresol or xylenol. Alcohol may be added to the cooled reaction mixture for more efficient precipitation of the ammeline.
GB4140458A1958-12-231958-12-23Production of ammeline
ExpiredGB869306A
(en)