GB589788A - Method of crystallizing urea - Google Patents

Method of crystallizing urea

Info

Publication number
GB589788A
GB589788A GB8425/45A GB842545A GB589788A GB 589788 A GB589788 A GB 589788A GB 8425/45 A GB8425/45 A GB 8425/45A GB 842545 A GB842545 A GB 842545A GB 589788 A GB589788 A GB 589788A
Authority
GB
United Kingdom
Prior art keywords
urea
zinc cyanurate
solution
added
crystallizing
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
GB8425/45A
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.)
Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
Original Assignee
Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
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 Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue filed Critical Compagnie de Produits Chimiques et Electrometallurgiques Alais Froges et Camargue
Publication of GB589788A publication Critical patent/GB589788A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

In crystallizing urea cyanuric acid or zinc cyanurate is added to the urea solution to obtain the latter in the form of small cubes. Suitable methods of preparing cyanuric acid and zinc cyanurate are described. In an example, 0.5 per cent. of zinc cyanurate is added to a saturated aqueous urea solution at 50 DEG C. containing 5g/kilogram of solution of ammonia. Urea in sandy form is obtained on cooling, and the mother-liquor used again, without the addition of more zinc cyanurate, to disolve more urea.
GB8425/45A 1942-02-03 1945-04-05 Method of crystallizing urea Expired GB589788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR589788X 1942-02-03

Publications (1)

Publication Number Publication Date
GB589788A true GB589788A (en) 1947-06-30

Family

ID=8962994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8425/45A Expired GB589788A (en) 1942-02-03 1945-04-05 Method of crystallizing urea

Country Status (1)

Country Link
GB (1) GB589788A (en)

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