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GB915450A - Improvements in and relating to processes for producing fertilizers - Google Patents

Improvements in and relating to processes for producing fertilizers

Info

Publication number
GB915450A
GB915450A GB1241159A GB1241159A GB915450A GB 915450 A GB915450 A GB 915450A GB 1241159 A GB1241159 A GB 1241159A GB 1241159 A GB1241159 A GB 1241159A GB 915450 A GB915450 A GB 915450A
Authority
GB
United Kingdom
Prior art keywords
granules
hot zone
fertilizer
hot
paris
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
GB1241159A
Inventor
Bernard William Bradford
Martin S Bloom
John Richard William Heslop
Leslie Waddington Lord
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 GB1241159A priority Critical patent/GB915450A/en
Priority to FR824278A priority patent/FR1267801A/en
Publication of GB915450A publication Critical patent/GB915450A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment

Landscapes

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

Abstract

Smooth granules of fertilizer are formed by pressing granules suspended in a gas stream through a hot yore and then allowing them to cool. During heating, the granules may be exposed to a reducing or oxidizing atmosphere or to formaldehyde. The granules may be coated with a finely divided material which is introduced with the granules or blown into the hot zone. Alternatively, the granules from the hot zone may be fed to a bed of calcium carbonate, china clay or plaster of Paris. The fertilizer may be urea or comprise (by weight) 10% of ammonium nitrate, 70% of ammonium sulphate and 20% of potassium chloride.ALSO:Smooth granules of fertilizer are formed by passing granules suspended in a gas stream through a hot zone and then allowing them to cool. During heating, the granules may be exposed to a reducing or oxidizing atmosphere or to formaldehyde. The granules may be coated with a finely divided material which is introduced with the granules or blown into the hot gas. Alternatively, the granules from the hot zone may be fed to a bed of calcium carbonate, china clay or plaster of Paris.
GB1241159A 1959-04-13 1959-04-13 Improvements in and relating to processes for producing fertilizers Expired GB915450A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1241159A GB915450A (en) 1959-04-13 1959-04-13 Improvements in and relating to processes for producing fertilizers
FR824278A FR1267801A (en) 1959-04-13 1960-04-13 Production of tablets in improved granular form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1241159A GB915450A (en) 1959-04-13 1959-04-13 Improvements in and relating to processes for producing fertilizers

Publications (1)

Publication Number Publication Date
GB915450A true GB915450A (en) 1963-01-09

Family

ID=10004112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1241159A Expired GB915450A (en) 1959-04-13 1959-04-13 Improvements in and relating to processes for producing fertilizers

Country Status (1)

Country Link
GB (1) GB915450A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004000759A1 (en) * 2002-06-20 2003-12-31 Kemira Growhow Oyj Coated fertiliser particles
FR2979914A1 (en) * 2011-09-12 2013-03-15 Florent Marc Andre Theotiste BIODEGRADABLE ORGANIC PRODUCT FOR THE MANUFACTURE OF A ROAD FLOODING FAN

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004000759A1 (en) * 2002-06-20 2003-12-31 Kemira Growhow Oyj Coated fertiliser particles
FR2979914A1 (en) * 2011-09-12 2013-03-15 Florent Marc Andre Theotiste BIODEGRADABLE ORGANIC PRODUCT FOR THE MANUFACTURE OF A ROAD FLOODING FAN
WO2013038345A1 (en) * 2011-09-12 2013-03-21 Bottura Francesco Biodegradable organic product designed for producing a road snow melting agent
WO2013075856A1 (en) * 2011-09-12 2013-05-30 Theotiste Florent Marc Andre Road snow melting agent
US9365758B2 (en) 2011-09-12 2016-06-14 Francesco Bottura Biodegradable organic product designed for producing a road snow melting agent

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