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
Inventor
Oscar Fredrik Carlson
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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190615445ApublicationCriticalpatent/GB190615445A/en
15,445. Carlson, O. F. Feb. 28, [date applied for under Patents Act, 1901]. Cyanides ; cyanamides. - Carbide-nitrogen compounds are prepared from carbides of alkaline earths at a lower temperature than heretofore by adding fluorspar, or one or more alkaline-earth fluorides, with or without a sulphate of an alkaline earth or alkali. The addition of from 5 to 30 parts of fluorspar to 100 parts of calcium carbide, with or without the addition of an alkali or alkaline-earth sulphate, has been found effective. The difficulty of procuring suitable vessels for the carbide is diminished by this method. The carbide-nitrogen product is stated. to be more suitable for use as a fertilizer than that heretofore produced by calcium chloride, since it is not hydroscopic.
GB190615445D1906-02-281906-07-07Improvements in or relating to the Production of Nitrogen Compositions
ExpiredGB190615445A
(en)