GB413636A - Processes for the production of fertilisers - Google Patents

Processes for the production of fertilisers

Info

Publication number
GB413636A
GB413636A GB105733A GB105733A GB413636A GB 413636 A GB413636 A GB 413636A GB 105733 A GB105733 A GB 105733A GB 105733 A GB105733 A GB 105733A GB 413636 A GB413636 A GB 413636A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
gas liquor
excess
concentrated gas
free
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
GB105733A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB105733A priority Critical patent/GB413636A/en
Publication of GB413636A publication Critical patent/GB413636A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/06Ammoniation of superphosphates

Landscapes

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

Abstract

Fertilizers are produced by treating superphosphates with concentrated gas liquor in the presence of sulphuric acid in a free state or partly free and partly combined with ammonia of the gas liquor, the proportions of sulphuric acid and of the gas liquor being such that the end product consists substantially of a mixture of calcium superphosphate and neutral ammonium sulphate. The gas liquor is preferably free from cyanogen compounds which are liable to impart an undesirable colouration in the product. The process may be carried out by reacting phosphate rock with sulphuric acid in excess of the quantity required for the production of calcium superphosphate and neutralizing the excess sulphuric acid, before it is able to react with the mono-calcium phosphate formed, with concentrated gas liquor. Alternatively the excess sulphuric acid may be neutralized with an ammoniated solution of ammonium sulphate obtained from concentrated gas liquor and sulphuric acid; methods of obtaining such solutions are described.ALSO:Fertilizers are produced by treating superphosphates with concentrated gas liquor in the presence of sulphuric acid in a free state or partly free and partly combined with ammonia of the gas liquor, the proportions of sulphuric acid and of the gas liquor being such that the end product consists substantially of a mixture of calcium superphosphate and neutral ammonium sulphate. Potassium salts, e.g. potassium chloride, may be added to the fertilizers produced. The gas liquor is preferably free from cyanogen compounds which are liable to impart an undesirable colouration in the product. The process may be carried out by reacting phosphate rock with sulphuric acid in excess of the quantity required for the production of calcium superphosphate and neutralizing the excess sulphuric acid, before it is able to react with the mono-calcium phosphate formed, with concentrated gas liquor. Alternatively, the excess sulphuric acid may be neutralized with an ammoniated solution of ammonium sulphate obtained from concentrated gas liquor and sulphuric acid; methods of obtaining such solutions are described.
GB105733A 1933-01-12 1933-01-12 Processes for the production of fertilisers Expired GB413636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB105733A GB413636A (en) 1933-01-12 1933-01-12 Processes for the production of fertilisers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB105733A GB413636A (en) 1933-01-12 1933-01-12 Processes for the production of fertilisers

Publications (1)

Publication Number Publication Date
GB413636A true GB413636A (en) 1934-07-12

Family

ID=9715415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB105733A Expired GB413636A (en) 1933-01-12 1933-01-12 Processes for the production of fertilisers

Country Status (1)

Country Link
GB (1) GB413636A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680679A (en) * 1951-02-16 1954-06-08 Allied Chem & Dye Corp Manufacture of fertilizers
DE1011440B (en) * 1954-08-23 1957-07-04 Albert Ag Chem Werke Process for the production of mixed fertilizers
DE1022240B (en) * 1953-06-03 1958-01-09 Rumianca Spa Process for the production of fertilizers containing phosphoric acid, nitrogen, calcium and potassium in granular form
US2879152A (en) * 1951-12-27 1959-03-24 Allied Chem Manufacture of fertilizers
US5555588A (en) * 1993-02-19 1996-09-17 Viesehon; Karl-Heinz Device for cleaning the interior of a wind instrument
US6311361B1 (en) 1999-07-02 2001-11-06 Jeffrey H. Cole Hand-supported pivoting cleaning device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680679A (en) * 1951-02-16 1954-06-08 Allied Chem & Dye Corp Manufacture of fertilizers
US2879152A (en) * 1951-12-27 1959-03-24 Allied Chem Manufacture of fertilizers
DE1022240B (en) * 1953-06-03 1958-01-09 Rumianca Spa Process for the production of fertilizers containing phosphoric acid, nitrogen, calcium and potassium in granular form
DE1011440B (en) * 1954-08-23 1957-07-04 Albert Ag Chem Werke Process for the production of mixed fertilizers
US5555588A (en) * 1993-02-19 1996-09-17 Viesehon; Karl-Heinz Device for cleaning the interior of a wind instrument
US6311361B1 (en) 1999-07-02 2001-11-06 Jeffrey H. Cole Hand-supported pivoting cleaning device

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