GB873578A - Phosphatic fertilizers - Google Patents

Phosphatic fertilizers

Info

Publication number
GB873578A
GB873578A GB2970556A GB2970556A GB873578A GB 873578 A GB873578 A GB 873578A GB 2970556 A GB2970556 A GB 2970556A GB 2970556 A GB2970556 A GB 2970556A GB 873578 A GB873578 A GB 873578A
Authority
GB
United Kingdom
Prior art keywords
product
concentration
remaining liquid
phosphate rock
calcium
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
GB2970556A
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 GB2970556A priority Critical patent/GB873578A/en
Publication of GB873578A publication Critical patent/GB873578A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B11/00—Fertilisers 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
    • C05B11/04—Fertilisers 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
    • C05B11/06—Fertilisers 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

Phosphatic fertilizer is made by dissolving a phosphate rock in nitric acid, adding sulphuric acid to the product to precipitate the calcium as calcium sulphate, adding to the remaining liquid further phosphate rock-preferably equivalent to the phosphoric acid content of the remaining liquid-and treating the product with a neutralizing agent, e.g. ammonia or potassium hydroxide or carbonate, under agitation. The nitric acid is preferably 40-60% concentration but may be wholly or in part replaced by urea nitrate; the sulphuric acid is 50-100% concentration. Plant foods such as ammonium sulphate or nitrate or potassium chloride may be added to the product which is desirably granulated.
GB2970556A 1956-09-02 1956-09-02 Phosphatic fertilizers Expired GB873578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2970556A GB873578A (en) 1956-09-02 1956-09-02 Phosphatic fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2970556A GB873578A (en) 1956-09-02 1956-09-02 Phosphatic fertilizers

Publications (1)

Publication Number Publication Date
GB873578A true GB873578A (en) 1961-07-26

Family

ID=10295801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2970556A Expired GB873578A (en) 1956-09-02 1956-09-02 Phosphatic fertilizers

Country Status (1)

Country Link
GB (1) GB873578A (en)

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