GB735293A - Improvements in and relating to phosphate fertilizers - Google Patents

Improvements in and relating to phosphate fertilizers

Info

Publication number
GB735293A
GB735293A GB186052A GB186052A GB735293A GB 735293 A GB735293 A GB 735293A GB 186052 A GB186052 A GB 186052A GB 186052 A GB186052 A GB 186052A GB 735293 A GB735293 A GB 735293A
Authority
GB
United Kingdom
Prior art keywords
soluble
per cent
water
phosphate
added
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
GB186052A
Inventor
John Wilfred Richard Rayner
John Herbert Hudson
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB186052A priority Critical patent/GB735293A/en
Publication of GB735293A publication Critical patent/GB735293A/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

Compound phosphate fertilizers containing 30 per cent to 60 per cent of their P2O5 content in water-soluble form are prepared by adding at some stage subsequent to the ammoniation in the process described in Specifications 697,019 or 702,860, a quantity of water-soluble phosphate sufficient to give the desired portion of water-soluble P2O5. The water-soluble phosphate may be added for instance in the form of ammonium phosphate together with ammonium sulphate and muriate of potash. According to a typical example Morocco phosphate was reacted in a plant and under operating conditions as described in Specification 697,019, with nitric acid solution of 50 per cent strength, and the products reacted with aqueous ammonia followed by the addition of ammonium sulphate. After this, material recycled from the final step of the process was added to the mass together with a concentrated mixed fertilizer containing 12 per cent of water-soluble P2O5, 12 per cent of N2 and 15 per cent of K2O. Of the total citric soluble P2O5, 50 per cent was water-soluble.ALSO:Compound phosphate fertilizers containing 30 to 60 per cent of their P2O5 content in water-soluble form are prepared by adding at some stage subsequent to the ammoniation in the process described in Specification 697,019 or 702,860, a quantity of water-soluble phosphate sufficient to give the desired portion of water-soluble P2O5. The water-soluble phosphate may be added for instance in the form of ammonium phosphate together with ammonium sulphate and muriate of potash. According to a typical example Morocco phosphate was reacted in a plant and under operating conditions as described in Specification 697,019, with nitric acid solution of 50 per cent strength, and the products reacted with aqueous ammonia followed by the addition of ammonium sulphate. After this, material recycled from the final step of the process was added to the mass together with a concentrated mixed fertilizer containing 12 per cent of water-soluble P2O5, 12 per cent of N2 and 15 per cent of K2O. Of the total citric soluble P2O5, 50 per cent was water-soluble.
GB186052A 1952-01-23 1952-01-23 Improvements in and relating to phosphate fertilizers Expired GB735293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB186052A GB735293A (en) 1952-01-23 1952-01-23 Improvements in and relating to phosphate fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB186052A GB735293A (en) 1952-01-23 1952-01-23 Improvements in and relating to phosphate fertilizers

Publications (1)

Publication Number Publication Date
GB735293A true GB735293A (en) 1955-08-17

Family

ID=9729290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB186052A Expired GB735293A (en) 1952-01-23 1952-01-23 Improvements in and relating to phosphate fertilizers

Country Status (1)

Country Link
GB (1) GB735293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158594A (en) * 1982-10-25 1992-10-27 Oxford Ronald E Granulated nitrogen-phosphorus-potassium-sulfur fertilizer from waste gypsum slurry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158594A (en) * 1982-10-25 1992-10-27 Oxford Ronald E Granulated nitrogen-phosphorus-potassium-sulfur fertilizer from waste gypsum slurry

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