GR33978B - Μεθοδος δια την ληψιν ουριας χαμηλης περιεκτικοτητος εις διουριαν. - Google Patents

Μεθοδος δια την ληψιν ουριας χαμηλης περιεκτικοτητος εις διουριαν.

Info

Publication number
GR33978B
GR33978B GR670133978A GR670133978A GR33978B GR 33978 B GR33978 B GR 33978B GR 670133978 A GR670133978 A GR 670133978A GR 670133978 A GR670133978 A GR 670133978A GR 33978 B GR33978 B GR 33978B
Authority
GR
Greece
Prior art keywords
urea
diurian
receiving low
urine content
low urine
Prior art date
Application number
GR670133978A
Other languages
English (en)
Original Assignee
Snam Progetti S.P.A.
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 S.P.A. filed Critical Snam Progetti S.P.A.
Publication of GR33978B publication Critical patent/GR33978B/el

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • 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
    • C07C273/04—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 from carbon dioxide and ammonia
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

έθοδος δια την παραγωγή ουρίας μετά χαμηλής περιεκτικότητας εις διουρία, χαρακτηριζόμενη εκ του ότιη παρούσα εντός του διαλύματος μετά της ουρίας διουρία μετασχηματίζεται προς ουρία τη επιδράσει πρακτικώς καθαρά αμμωνίας, εγχυνόμενης κατ' αντιρροήνεις θερμοκρασία μεταξύ 170 έως 220 βαθμούς Κελσίου και υπό μίαν πίεση μεταξύ 50 έως 300 kg/cm2 εντός του αποσυνθετήρος του καρβαμιδικού ταυτοχρόνως μετά της αποσυνθέσεως του αυτού καρβαμιδικού προερχόμενου εκ της συνθέσεως.
GR670133978A 1966-07-27 1967-07-10 Μεθοδος δια την ληψιν ουριας χαμηλης περιεκτικοτητος εις διουριαν. GR33978B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2073366 1966-07-27

Publications (1)

Publication Number Publication Date
GR33978B true GR33978B (el) 1968-02-29

Family

ID=11171223

Family Applications (1)

Application Number Title Priority Date Filing Date
GR670133978A GR33978B (el) 1966-07-27 1967-07-10 Μεθοδος δια την ληψιν ουριας χαμηλης περιεκτικοτητος εις διουριαν.

Country Status (12)

Country Link
JP (1) JPS5127659B1 (el)
BE (1) BE701633A (el)
BR (1) BR6791527D0 (el)
CH (1) CH471089A (el)
CS (1) CS163163B2 (el)
DE (1) DE1618926B1 (el)
ES (1) ES343801A1 (el)
GR (1) GR33978B (el)
LU (1) LU54171A1 (el)
NL (1) NL145849B (el)
SE (1) SE387334B (el)
YU (1) YU33783B (el)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52139164U (el) * 1976-04-13 1977-10-21
JPS52163463U (el) * 1976-06-02 1977-12-10
JPS6114665U (ja) * 1984-07-02 1986-01-28 和也 生駒 容器
DE102006059760B4 (de) * 2006-12-18 2009-04-02 Skw Stickstoffwerke Piesteritz Gmbh Verfahren zur kontinuierlichen Herstellung von hochreiner Harnstofflösung
ITMI20120013A1 (it) 2012-01-09 2013-07-10 Saipem Spa Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper
JP2016064991A (ja) 2014-09-22 2016-04-28 東洋エンジニアリング株式会社 尿素製造プロセスにおける高純度尿素水溶液の製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232984A (en) * 1961-11-20 1966-02-01 Pullman Inc Low biuret urea
NL291528A (el) * 1963-04-11
US3255246A (en) * 1963-06-27 1966-06-07 Du Pont Synthesis and recovery of urea

Also Published As

Publication number Publication date
DE1618926B1 (de) 1971-01-28
NL145849B (nl) 1975-05-15
CS163163B2 (el) 1975-08-29
LU54171A1 (el) 1967-09-25
JPS5127659B1 (el) 1976-08-13
NL6710422A (el) 1968-01-29
BE701633A (el) 1968-01-02
SE387334B (sv) 1976-09-06
YU33783B (en) 1978-05-15
CH471089A (fr) 1969-04-15
ES343801A1 (es) 1968-09-16
BR6791527D0 (pt) 1973-06-28

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