IT1060622B - Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca - Google Patents

Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca

Info

Publication number
IT1060622B
IT1060622B IT23296/76A IT2329676A IT1060622B IT 1060622 B IT1060622 B IT 1060622B IT 23296/76 A IT23296/76 A IT 23296/76A IT 2329676 A IT2329676 A IT 2329676A IT 1060622 B IT1060622 B IT 1060622B
Authority
IT
Italy
Prior art keywords
reuse
urea
ammonia
waters
combined plants
Prior art date
Application number
IT23296/76A
Other languages
English (en)
Inventor
Vincenzo Lagana
U Zardi
Original Assignee
Snam Progetti
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 Snam Progetti filed Critical Snam Progetti
Priority to IT23296/76A priority Critical patent/IT1060622B/it
Priority to DE2721462A priority patent/DE2721462C2/de
Priority to NL7705356A priority patent/NL7705356A/xx
Priority to JP5444877A priority patent/JPS5328121A/ja
Priority to US06/234,159 priority patent/US4327068A/en
Application granted granted Critical
Publication of IT1060622B publication Critical patent/IT1060622B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
    • C01B3/02—Production of hydrogen; Production of gaseous mixtures containing hydrogen
    • C01B3/025—Preparation or purification of gas mixtures for ammonia synthesis
    • 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
    • C07C273/10—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 combined with the synthesis of ammonia

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gas Separation By Absorption (AREA)
IT23296/76A 1976-05-14 1976-05-14 Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca IT1060622B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT23296/76A IT1060622B (it) 1976-05-14 1976-05-14 Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca
DE2721462A DE2721462C2 (de) 1976-05-14 1977-05-12 Verwendung von Prozeßwasser aus der Ammoniak- und Harnstoffsynthese
NL7705356A NL7705356A (nl) 1976-05-14 1977-05-13 Werkwijze ter bereiding van ureum-ammoniak onder recirculatie van het afvalwater.
JP5444877A JPS5328121A (en) 1976-05-14 1977-05-13 Method of reusing treated water in combined apparatus for formation of ammonia and urea
US06/234,159 US4327068A (en) 1976-05-14 1981-02-13 Method and the reuse of sewage waters of the combined urea-ammonia installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23296/76A IT1060622B (it) 1976-05-14 1976-05-14 Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca

Publications (1)

Publication Number Publication Date
IT1060622B true IT1060622B (it) 1982-08-20

Family

ID=11205783

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23296/76A IT1060622B (it) 1976-05-14 1976-05-14 Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca

Country Status (5)

Country Link
US (1) US4327068A (it)
JP (1) JPS5328121A (it)
DE (1) DE2721462C2 (it)
IT (1) IT1060622B (it)
NL (1) NL7705356A (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7903623A (nl) * 1979-05-09 1980-11-11 Stamicarbon Werkwijze voor het zuiveren van ureumhoudend afvalwater en werkwijze voor het bereiden van melamine.
GB1310743A (en) * 1981-02-16 1973-03-21 Richter Gedeon Vegyeszet Partially protected basic amino acids and peptides
NL8100989A (nl) * 1981-02-28 1982-09-16 Unie Van Kunstmestfab Bv Werkwijze voor het verwijderen van ureum, ammoniak en kooldioxide uit verdunde waterige oplossingen.
DE3239605A1 (de) * 1982-10-26 1984-04-26 Linde Ag, 6200 Wiesbaden Verfahren zur kombinierten herstellung von ammoniak und harnstoff
DE3401779A1 (de) * 1984-01-19 1985-08-01 Linde Ag, 6200 Wiesbaden Verfahren zur kombinierten herstellung von ammoniak und harnstoff
US6077491A (en) 1997-03-21 2000-06-20 Ec&C Technologies Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal
US20090148370A1 (en) * 2007-12-06 2009-06-11 Spencer Iii Herbert W Process to produce ammonia from urea
DK2467354T3 (en) 2009-08-20 2014-03-10 Saudi Basic Ind Corp Process for simultaneous production of methanol and ammonia
CN102336445B (zh) * 2011-09-26 2013-03-20 瓮福（集团）有限责任公司 硫酸铵生产中综合利用水的方法
US9586831B2 (en) 2014-06-09 2017-03-07 Wahlco, Inc. Urea to ammonia process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL295528A (it) * 1962-07-21
GB1053788A (it) * 1964-05-27 1900-01-01
GB1104843A (en) * 1964-07-29 1968-02-28 Exxon Research Engineering Co Process for producing hydrogen
US3361534A (en) * 1965-03-31 1968-01-02 Union Carbide Corp Hydrogen production by steam reforming
US3922222A (en) * 1973-02-20 1975-11-25 Cf Ind Method for treatment of urea crystallizer condensate

Also Published As

Publication number Publication date
DE2721462C2 (de) 1981-11-19
DE2721462A1 (de) 1977-11-17
JPS5328121A (en) 1978-03-16
NL7705356A (nl) 1977-11-16
US4327068A (en) 1982-04-27

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