GB2061948B - Process for concentrating aqueous urea solution - Google Patents

Process for concentrating aqueous urea solution

Info

Publication number
GB2061948B
GB2061948B GB8039154A GB8039154A GB2061948B GB 2061948 B GB2061948 B GB 2061948B GB 8039154 A GB8039154 A GB 8039154A GB 8039154 A GB8039154 A GB 8039154A GB 2061948 B GB2061948 B GB 2061948B
Authority
GB
United Kingdom
Prior art keywords
urea solution
aqueous urea
concentrating aqueous
concentrating
solution
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
GB8039154A
Other languages
English (en)
Other versions
GB2061948A (en
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.)
Mitsui Toatsu Chemicals Inc
Toyo Engineering Corp
Original Assignee
Mitsui Toatsu Chemicals Inc
Toyo Engineering 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 Mitsui Toatsu Chemicals Inc, Toyo Engineering Corp filed Critical Mitsui Toatsu Chemicals Inc
Publication of GB2061948A publication Critical patent/GB2061948A/en
Application granted granted Critical
Publication of GB2061948B publication Critical patent/GB2061948B/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
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
    • C07C273/16—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB8039154A 1979-05-01 1980-04-25 Process for concentrating aqueous urea solution Expired GB2061948B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5251979A JPS55145659A (en) 1979-05-01 1979-05-01 Concentration of aqueous solution of urea

Publications (2)

Publication Number Publication Date
GB2061948A GB2061948A (en) 1981-05-20
GB2061948B true GB2061948B (en) 1983-08-24

Family

ID=12916980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8039154A Expired GB2061948B (en) 1979-05-01 1980-04-25 Process for concentrating aqueous urea solution

Country Status (4)

Country Link
JP (1) JPS55145659A (OSRAM)
GB (1) GB2061948B (OSRAM)
IN (1) IN152760B (OSRAM)
WO (1) WO1980002425A1 (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679485A5 (OSRAM) * 1989-12-29 1992-02-28 Ammonia Casale Sa

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL141179B (nl) * 1967-01-20 1974-02-15 Whitlock Mfg Co Werkwijze en inrichting voor de bereiding van ureum.
GB1235055A (en) * 1967-01-20 1971-06-09 Whitlock Mfg Company Process for drying urea solutions
JPS497141A (OSRAM) * 1972-05-13 1974-01-22
JPS51101919A (ja) * 1975-03-07 1976-09-08 Toyo Engineering Corp Nyososuiyoekinonoshukuhoho

Also Published As

Publication number Publication date
IN152760B (OSRAM) 1984-03-31
WO1980002425A1 (fr) 1980-11-13
GB2061948A (en) 1981-05-20
JPS55145659A (en) 1980-11-13

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee