GB834305A - Improvements in or relating to the production of ammonium nitrate - Google Patents

Improvements in or relating to the production of ammonium nitrate

Info

Publication number
GB834305A
GB834305A GB12965/57A GB1296557A GB834305A GB 834305 A GB834305 A GB 834305A GB 12965/57 A GB12965/57 A GB 12965/57A GB 1296557 A GB1296557 A GB 1296557A GB 834305 A GB834305 A GB 834305A
Authority
GB
United Kingdom
Prior art keywords
ammonium nitrate
temperature
tower
effected
velocity
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
GB12965/57A
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.)
Commercial Solvents Corp
Original Assignee
Commercial Solvents Corp
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 Commercial Solvents Corp filed Critical Commercial Solvents Corp
Publication of GB834305A publication Critical patent/GB834305A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C1/00—Ammonium nitrate fertilisers
    • C05C1/02—Granulation; Pelletisation; Stabilisation; Colouring
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/18—Nitrates of ammonium

Abstract

Granular ammonium nitrate having a particle density of 1.5-1.65 gm./c.c. and a bulk density of 0.9-1.0 gm./c.c. is produced by spraying molten ammonium nitrate containing not more than 0.5% moisture into the top of a cooling tower in countercurrent to a stream of cooling gas, e.g. air at atmospheric or lower temperature. The ammonium nitrate may be cooled from a temperature of above 350 DEG F., preferably 355-360 DEG F., to one of not greater than 280 DEG F., preferably below 200 DEG F. The cooling gas may flow at a velocity of up to 700 ft./min., preferably less than 650 ft./min. Using air at ordinary temperature and a velocity of 625 ft./min. a temperature drop from 400 DEG to 195 DEG F. may be effected in a tower of height 50 ft. and a temperature drop from 400 DEG to 280 DEG F. may be effected in a tower of height 25 ft. In the latter case the granules are preferably cooled to below 200 DEG F. while maintained in motion on a vibrating conveyer. The ammonium nitrate may be sprayed at a pressure of 1.0 p.s.i.g. through orifices of diameter 0.025, 0.035 and 0.037 inch, respectively.
GB12965/57A 1956-07-12 1957-04-23 Improvements in or relating to the production of ammonium nitrate Expired GB834305A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US834305XA 1956-07-12 1956-07-12

Publications (1)

Publication Number Publication Date
GB834305A true GB834305A (en) 1960-05-04

Family

ID=22178276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12965/57A Expired GB834305A (en) 1956-07-12 1957-04-23 Improvements in or relating to the production of ammonium nitrate

Country Status (2)

Country Link
FR (1) FR1174402A (en)
GB (1) GB834305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570119A1 (en) * 1992-05-05 1993-11-18 Imperial Chemical Industries Plc Improved prilling process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570119A1 (en) * 1992-05-05 1993-11-18 Imperial Chemical Industries Plc Improved prilling process

Also Published As

Publication number Publication date
FR1174402A (en) 1959-03-11

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