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Expired
Application number
GB25344/20A
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CHIMIQUES POUR L IND SOC ET
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CHIMIQUES POUR L IND SOC ET
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Publication of GB159853ApublicationCriticalpatent/GB159853A/en
C05B3/00—Fertilisers based essentially on di-calcium phosphate
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Fertilizers
(AREA)
Treatment Of Sludge
(AREA)
Abstract
A manure, containing nitrogen and soluble phosphate is obtained by adding powdered calcium cyanamide to a phosphoric acid solution of free cyanamide and drying the granular product. Phosphoric acid containing sulphuric acid, such as results from the treatment of tricalcium phosphate with sulphuric acid, may be used.
GB25344/20A1920-03-021920-09-02An improved process for the manufacture of a mixed nitro-phosphate manure
ExpiredGB159853A
(en)