GB799950A - Fertilizers - Google Patents

Fertilizers

Info

Publication number
GB799950A
GB799950A GB3772654A GB3772654A GB799950A GB 799950 A GB799950 A GB 799950A GB 3772654 A GB3772654 A GB 3772654A GB 3772654 A GB3772654 A GB 3772654A GB 799950 A GB799950 A GB 799950A
Authority
GB
United Kingdom
Prior art keywords
ammonium
ammonia
mole
rock
per cent
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
GB3772654A
Inventor
Geoffrey George Brown
Thomas Pride Dee
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 Ltd
Original Assignee
Fisons 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 Fisons Ltd filed Critical Fisons Ltd
Priority to GB3772654A priority Critical patent/GB799950A/en
Publication of GB799950A publication Critical patent/GB799950A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B11/00Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
    • C05B11/04Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
    • C05B11/06Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

A phosphatic fertilizer is produced by treating a phosphate rock (e.g. a calcium phosphate Morocco rock) with a mixture comprising an ammonium salt, nitric acid and phosphoric acid and treating the product so obtained with ammonia. The preferred ammonium salt is the sulphate. It is preferred that the reactants, expressed per mole of P2O5 of the rock, be in proportions of 1,4 mole ammonium sulphate, 1 mole phosphoric acid, 4 to 8 moles of nitric acid and 2,2 to 6,2 moles of ammonia. The phosphoric acid may be 50 per cent concentrated, the nitric acid 60 per cent concentrated, the ammonia anhydrous or a 25 to 35 per cent aqueous solution, and the ammonium sulphate is dissolved in the acid reactants. Desirably the product obtained is granulated and dried. Optional additions are other plant foods such as ammonium sulphate, ammonium nitrate and potassium chloride.
GB3772654A 1954-12-31 1954-12-31 Fertilizers Expired GB799950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3772654A GB799950A (en) 1954-12-31 1954-12-31 Fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3772654A GB799950A (en) 1954-12-31 1954-12-31 Fertilizers

Publications (1)

Publication Number Publication Date
GB799950A true GB799950A (en) 1958-08-13

Family

ID=10398595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3772654A Expired GB799950A (en) 1954-12-31 1954-12-31 Fertilizers

Country Status (1)

Country Link
GB (1) GB799950A (en)

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