GB1198127A - Process for the Production of Concentrated Complex Fertilizers - Google Patents

Process for the Production of Concentrated Complex Fertilizers

Info

Publication number
GB1198127A
GB1198127A GB3278767A GB3278767A GB1198127A GB 1198127 A GB1198127 A GB 1198127A GB 3278767 A GB3278767 A GB 3278767A GB 3278767 A GB3278767 A GB 3278767A GB 1198127 A GB1198127 A GB 1198127A
Authority
GB
United Kingdom
Prior art keywords
ammonium
nitrate
aqueous
extraction
suspension
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
GB3278767A
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.)
FIRST DEPUTY MINISTER MINISTER
Original Assignee
FIRST DEPUTY MINISTER MINISTER
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 FIRST DEPUTY MINISTER MINISTER filed Critical FIRST DEPUTY MINISTER MINISTER
Publication of GB1198127A publication Critical patent/GB1198127A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates

Landscapes

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

Abstract

1,198,127. Ammonium phosphate/nitrate fertilizer. RUMANIA, MINISTRY OF INDUSTRIAL CHEMICALS. 17 July, 1967 [17 Aug., 1967], No. 32787/67. Addition to 1,048,269. Heading C1A. Phosphate rock is dissolved in nitric acid, the solution extracted with a partially watermiscible organic solvent, the organic extract of HNO 3 and H 3 PO 4 is ammoniated and the resultant two layers are separated by decantation: the aqueous layer (in the form of a suspension of ammonium phosphate and ammonium nitrate) and the aqueous raffinate (calcium nitrate) from the extraction are distilled to recover the solvents, which together with the organic layer from the ammoniation are acidulated with strong nitric acid to recover an aqueous solution of ammonium nitrate and the solvents are recycled to the extraction stage. Various other features are disclosed in the examples including (a) the use of a pulsed column for the extraction (b) performing the distillation on the raffinate during manufacture therefrom of calcium nitrate-urea, calcium natrate, nitro-chalk or ammonium nitratecalcium carbonate (c) where ammonium nitrate is formed in (b), recycling this to the aqueous salt suspension (d) recycling the ammonium nitrate recovered from the accidulation to said suspension (e) two-stage decantation (f) the use of gaseous NH 3 ,
GB3278767A 1966-08-17 1967-07-17 Process for the Production of Concentrated Complex Fertilizers Expired GB1198127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO5205766 1966-08-17

Publications (1)

Publication Number Publication Date
GB1198127A true GB1198127A (en) 1970-07-08

Family

ID=20086542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3278767A Expired GB1198127A (en) 1966-08-17 1967-07-17 Process for the Production of Concentrated Complex Fertilizers

Country Status (2)

Country Link
DE (1) DE1592714A1 (en)
GB (1) GB1198127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108083877A (en) * 2017-12-20 2018-05-29 贵州芭田生态工程有限公司 A kind of method that calcium nitrate using Phosphate Fertilizer Nitrate with Frozen Method process by-product produces calcium nitrate-urea as raw material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108083877A (en) * 2017-12-20 2018-05-29 贵州芭田生态工程有限公司 A kind of method that calcium nitrate using Phosphate Fertilizer Nitrate with Frozen Method process by-product produces calcium nitrate-urea as raw material

Also Published As

Publication number Publication date
DE1592714A1 (en) 1971-04-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees