GB785645A - Fertilizers - Google Patents

Fertilizers

Info

Publication number
GB785645A
GB785645A GB2900654A GB2900654A GB785645A GB 785645 A GB785645 A GB 785645A GB 2900654 A GB2900654 A GB 2900654A GB 2900654 A GB2900654 A GB 2900654A GB 785645 A GB785645 A GB 785645A
Authority
GB
United Kingdom
Prior art keywords
solution
fertilizer
urea
parts
formaldehyde
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
GB2900654A
Inventor
Thomas Pride Dee
Allan Leonard Whynes
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.)
Fisons Ltd
Original Assignee
Fisons 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 Fisons Ltd filed Critical Fisons Ltd
Priority to GB2900654A priority Critical patent/GB785645A/en
Publication of GB785645A publication Critical patent/GB785645A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag

Landscapes

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

Abstract

Granular fertilizers are prevented from caking on storage by spraying the individual granules with an aqueous solution of an urea-formaldehyde condensation product. The aqueous solution may have a 60 to 80 per cent concentration and is suitably employed in amounts to provide 1 to 5 per cent, by weight of ureaformaldehyde based on the weight of the fertilizer. The urea: formaldehyde mol ratio is preferably between 1,3 and 1,6 and the pH of the solution is suitably 3,6. The spraying may be effected by means of fine sprays whilst the granular fertilizer is carried on a conveyer belt or while it is falling in a stream. According to examples (1) 42,3 parts of crystalline urea were added to 40 parts of commercial formalin containing 37 per cent formaldehyde and the solution heated to 45 DEG C. A granular fertilizer containing superphosphates, ammonium sulphate and potassium chloride was sprayed with this solution at a rate of 23,5 parts of solution per 1120 parts of fertilizer to obtain a non-caking granular product. (2) A similar fertilizer at 50 DEG to 70 DEG C. was sprayed with a urea-formaldehyde solution at the same temperature in the same amount as in (1) above.
GB2900654A 1954-10-08 1954-10-08 Fertilizers Expired GB785645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2900654A GB785645A (en) 1954-10-08 1954-10-08 Fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2900654A GB785645A (en) 1954-10-08 1954-10-08 Fertilizers

Publications (1)

Publication Number Publication Date
GB785645A true GB785645A (en) 1957-10-30

Family

ID=10284745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2900654A Expired GB785645A (en) 1954-10-08 1954-10-08 Fertilizers

Country Status (1)

Country Link
GB (1) GB785645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013616A1 (en) * 1979-05-11 1980-11-20 Piesteritz Stickstoff Urea and ammonium nitrate fertiliser anticaking and anti-dusting - with reaction prod. of urea, formaldehyde, hexa-methylene:tetramine and water
EP1513784B1 (en) * 2002-06-20 2017-08-16 Yara International ASA Coated fertiliser particles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013616A1 (en) * 1979-05-11 1980-11-20 Piesteritz Stickstoff Urea and ammonium nitrate fertiliser anticaking and anti-dusting - with reaction prod. of urea, formaldehyde, hexa-methylene:tetramine and water
EP1513784B1 (en) * 2002-06-20 2017-08-16 Yara International ASA Coated fertiliser particles

Similar Documents

Publication Publication Date Title
US2255027A (en) Fertilizer manufacture
US2255026A (en) Fertilizer manufacture
US3477842A (en) Manufacture of free flowing fertilizer product by coating granules with urea-formaldehyde from an alkaline solution
US2957763A (en) Process for producing mixed ammonium nitrate-monoammonium phosphate prills
GB785645A (en) Fertilizers
US4160782A (en) Process for treating urea bodies
DK301280A (en) NON-COMBINING CORN MINERAL FERTILIZER AND PROCEDURE FOR ITS MANUFACTURING
GB924454A (en) A method of obtaining granulated ammonium nitrate fertilizers
GB1081296A (en) Fertilizer manufacture
GB1382870A (en) Fertilisers
GB785934A (en) Fertilizer materials
US1870346A (en) Decomposition product of urea as or in fertilizers
KR840001536A (en) Fertilizer Compositions and Methods for Making the Same
GB1142288A (en) Process for the mixing of solid compounds with a melt or a suspension in the production of npk-fertilizer prills
GB743602A (en) Improvements in or relating to ammonium nitrate and compositions containing it
GB1221791A (en) Fertilizer compositions
GB890569A (en) Improvements in and relating to fertilizers
GB804053A (en) Improvements in or relating to granular fertilisers
GB712178A (en) Improvements in and relating to the production of nitrogenous fertilizers
GB1008402A (en) Production of fertilizers
SU1376988A1 (en) Method of programmed growing of cereal crops
GB1277144A (en) Nitrogen phosphate fertilisers and their manufacture
Jackson et al. Ammonia nitrogen loss from sprinkler applications
GB1125664A (en) Production of suspension fertilizers from solutions obtained by treating phosphate rock with nitric acid
GB1245941A (en) Fertilizers