GB445029A - Process for the production of fertilisers - Google Patents

Process for the production of fertilisers

Info

Publication number
GB445029A
GB445029A GB2754634A GB2754634A GB445029A GB 445029 A GB445029 A GB 445029A GB 2754634 A GB2754634 A GB 2754634A GB 2754634 A GB2754634 A GB 2754634A GB 445029 A GB445029 A GB 445029A
Authority
GB
United Kingdom
Prior art keywords
per cent
magma
phosphate
free acid
producing
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
GB2754634A
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 GB2754634A priority Critical patent/GB445029A/en
Publication of GB445029A publication Critical patent/GB445029A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, 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
    • C05B1/02—Superphosphates

Landscapes

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

Abstract

Fertilizers are obtained by treating ground rock phosphate with a magma of ammonium sulphate and free sulphuric acid containing 0,1 to 45 per cent of free acid with the application of heat under controlled temperatures between 60 and 75 DEG C., and drying the product until it contains 4 per cent or less of moisture. For producing a composition containing mainly dicalcium phosphate, a magma containing up to 20 per cent, say 14 per cent, of free acid may be employed. For producing a composition containing mainly mono-calcium phosphate, a magma containing at least 20 per cent, say 43 per cent, of free acid may be used. Specification 413,636 is referred to.ALSO:Fertilizers are obtained by treating ground rock phosphate with a magma of ammonium sulphate and free sulphuric acid containing 0,1 to 45 per cent of the free acid with the application of heat under controlled temperatures between 60 and 75 DEG C., and drying the product until it contains 4 per cent or less of moisture. Finely divided sulphur may be incorporated in the phosphate rock. For producing a composition containing mainly decalcium phosphate, a magma containing up to 20 per cent, say 15 per cent, free acid may be employed. For producing a composition containing mainly monocalcium phosphate, a magma containing at least 20 per cent, say 43 per cent, free acid may be employed. The magma may be prepared by treating concentrated gas liquor with sulphuric acid and evaporating the solution in vacuo. Specification 413,636 is referred to.
GB2754634A 1934-09-25 1934-09-25 Process for the production of fertilisers Expired GB445029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2754634A GB445029A (en) 1934-09-25 1934-09-25 Process for the production of fertilisers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2754634A GB445029A (en) 1934-09-25 1934-09-25 Process for the production of fertilisers

Publications (1)

Publication Number Publication Date
GB445029A true GB445029A (en) 1936-03-25

Family

ID=10261354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2754634A Expired GB445029A (en) 1934-09-25 1934-09-25 Process for the production of fertilisers

Country Status (1)

Country Link
GB (1) GB445029A (en)

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