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
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GB1577861A
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Individual
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Individual
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Priority to GB1577861ApriorityCriticalpatent/GB923666A/en
Publication of GB923666ApublicationCriticalpatent/GB923666A/en
C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Fertilizers
(AREA)
Abstract
Fertilizers are obtained by making dusty bone or horn meal in the natural, not pretreated state, into a paste with small quantities of fresh slaughterhouse blood until a crumbly mass is formed, which is stacked in heaps and is subjected to anaerobic fermentation so as to dry out the mass at elevated temperature and produce a crumbly non-dusty product. Whole blood is preferably used in an amount of 5-25% based on the weight of the starting materials. Fermentation may be effected at a temperature up to 70 DEG C. until the mass is dry. Inorganic nitrogen and potassium salts such as potassium sulphate may also be added.
GB1577861A1961-05-021961-05-02Improvements in or relating to fertilizers
ExpiredGB923666A
(en)