GB154563A - Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and fertilising salts - Google Patents

Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and fertilising salts

Info

Publication number
GB154563A
GB154563A GB25341/20A GB2534120A GB154563A GB 154563 A GB154563 A GB 154563A GB 25341/20 A GB25341/20 A GB 25341/20A GB 2534120 A GB2534120 A GB 2534120A GB 154563 A GB154563 A GB 154563A
Authority
GB
United Kingdom
Prior art keywords
acid
mixture
employed
salts
cyanamide
Prior art date
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
GB25341/20A
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.)
CHIMIQUES POUR L IND SOC ET
Original Assignee
CHIMIQUES POUR L IND SOC ET
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 CHIMIQUES POUR L IND SOC ET filed Critical CHIMIQUES POUR L IND SOC ET
Publication of GB154563A publication Critical patent/GB154563A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C1/00—Ammonium nitrate fertilisers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

Calcium cynanamide is decomposed by acid, the dilute cyanamide solution first obtained being employed several times successively in the treatment of more calcium cyanamide, and the concentrated solution of cyanamide thus obtained is allowed to stand, with or without addition of a little ammonia. The dicyandiamide separating out is converted into ammonium salts by treatment with an acid such as sulphuric, phosphoric or nitric, or a mixture of acid and an acid salt. The excess acid is employed for the preparation, within the mixture, of superphosphate or other combination having manurial value, or may be neutralized with ammonia or suitable salts thereof. The carbon dioxide produced in the decomposition of the dicyandiamide may be collected and employed in the production of the cyanamide solution.ALSO:A manure is obtained by converting dicyandiamide into ammonium salts by treatment with an acid such as sulphuric, phosphoric, or nitric, or a mixture of acid and an acid salt; the excess acid is employed for the preparation, within the mixture, of superphosphate or other combination having manurial value.
GB25341/20A 1919-11-25 1920-09-02 Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and fertilising salts Expired GB154563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH154563X 1919-11-25

Publications (1)

Publication Number Publication Date
GB154563A true GB154563A (en) 1921-12-02

Family

ID=4409246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25341/20A Expired GB154563A (en) 1919-11-25 1920-09-02 Improved process for the manufacture of a mixed manure containing a variable amount of nitrogen and fertilising salts

Country Status (1)

Country Link
GB (1) GB154563A (en)

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