EG18504A - Process for concentrating urea - Google Patents

Process for concentrating urea

Info

Publication number
EG18504A
EG18504A EG625/87D EG62587D EG18504A EG 18504 A EG18504 A EG 18504A EG 625/87 D EG625/87 D EG 625/87D EG 62587 D EG62587 D EG 62587D EG 18504 A EG18504 A EG 18504A
Authority
EG
Egypt
Prior art keywords
concentrating urea
concentrating
urea
Prior art date
Application number
EG625/87D
Other languages
English (en)
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Application granted granted Critical
Publication of EG18504A publication Critical patent/EG18504A/xx

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
    • C07C273/04—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/065—Evaporators with vertical tubes by film evaporating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/04—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Saccharide Compounds (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Fertilizers (AREA)
EG625/87D 1986-11-03 1987-11-01 Process for concentrating urea EG18504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8602769A NL8602769A (nl) 1986-11-03 1986-11-03 Werkwijze voor het concentreren van een ureumoplossing en inrichting voor het uitvoeren van de werkwijze.

Publications (1)

Publication Number Publication Date
EG18504A true EG18504A (en) 1993-04-30

Family

ID=19848768

Family Applications (1)

Application Number Title Priority Date Filing Date
EG625/87D EG18504A (en) 1986-11-03 1987-11-01 Process for concentrating urea

Country Status (29)

Country Link
US (1) US4866207A (xx)
EP (1) EP0266839A1 (xx)
JP (1) JPS63126858A (xx)
KR (1) KR880006176A (xx)
CN (1) CN1022321C (xx)
AR (1) AR245383A1 (xx)
AU (1) AU604069B2 (xx)
BG (1) BG60206B2 (xx)
BR (1) BR8705824A (xx)
CA (1) CA1333912C (xx)
DD (1) DD262806A5 (xx)
EG (1) EG18504A (xx)
FI (1) FI874808A (xx)
HU (1) HUT44949A (xx)
IL (1) IL84340A0 (xx)
IN (1) IN170336B (xx)
MA (1) MA21099A1 (xx)
MX (1) MX168831B (xx)
NL (1) NL8602769A (xx)
NO (1) NO874558L (xx)
NZ (1) NZ222369A (xx)
OA (1) OA08770A (xx)
PL (1) PL268572A1 (xx)
PT (1) PT86068A (xx)
SU (1) SU1736335A3 (xx)
TN (1) TNSN87125A1 (xx)
TR (1) TR24027A (xx)
ZA (1) ZA878213B (xx)
ZW (1) ZW19987A1 (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679485A5 (xx) * 1989-12-29 1992-02-28 Ammonia Casale Sa
DE4034074A1 (de) * 1990-10-26 1992-04-30 Huels Chemische Werke Ag Verfahren zur herstellung von alkylglycosiden und alkyloligoglycosiden
DE19961040A1 (de) 1999-12-16 2001-06-21 Basf Ag Thermoplastische Formmassen mit verbessertem Verarbeitungsverhalten auf Basis von Polyarylenethersulfonen und Polyamiden
EP2153880A1 (en) * 2008-07-31 2010-02-17 Urea Casale S.A. Process and plant for the production of a urea solution for use in SCR process for reduction of Nox
JP6541570B2 (ja) 2012-05-03 2019-07-10 スタミカーボン・ベー・フェー アンモニア及び二酸化炭素から尿素を製造するための方法、並びに装置
EA033625B1 (ru) * 2016-05-03 2019-11-11 Stamicarbon Производство карбамида с контролируемым содержанием биурета

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908028C (de) * 1948-11-03 1954-04-01 Hoechst Ag Verfahren und Saeule fuer Stoffumsatz und Waermeaustauscher
US2944966A (en) * 1954-02-19 1960-07-12 Allen G Eickmeyer Method for separation of fluid mixtures
FR1111540A (fr) * 1954-07-19 1956-03-01 échangeur thermique permettant l'utilisation pratique de l'énergie de dilution des solutions concentrées
FR1255949A (fr) * 1959-11-12 1961-03-17 Procédé et dispositifs de distillation par évaporation moléculaire à multiple effet
US3137725A (en) * 1960-02-11 1964-06-16 Chemical Construction Corp Heat recovery in urea synthesis process
US2998060A (en) * 1960-08-03 1961-08-29 Albert W Eckstrom High temperature method and evaporator for concentrating solutions
SU144842A1 (ru) * 1960-10-25 1961-11-30 Б.Г. Мельников Способ удалени аммиака и углекислого газа из продуктов синтеза мочевины
NL6414630A (xx) * 1964-12-16 1966-06-17
US4341640A (en) * 1976-09-27 1982-07-27 Standard Oil Company Urea hydrolysis
US4231951A (en) * 1978-02-08 1980-11-04 Minnesota Mining And Manufacturing Company Complex salt photoinitiator
JPS5573651A (en) * 1978-11-30 1980-06-03 Toyo Eng Corp Preparation of urea
JPS5826909B2 (ja) * 1979-09-14 1983-06-06 東洋エンジニアリング株式会社 尿素水溶液の濃縮方法
JPS5750954A (en) * 1980-09-12 1982-03-25 Mitsui Toatsu Chem Inc Synthesis of urea
IT1163795B (it) * 1983-07-18 1987-04-08 Montedison Spa Apparecchio per lo strippaggio dell'ammoniaca dalle soluzioni provenienti dalla sintesi dell'urea
NL8303888A (nl) * 1983-11-13 1985-06-03 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
DE3565532D1 (en) * 1984-05-19 1988-11-17 Ammonia Casale Sa Process for the preparation of urea
JPH06110547A (ja) * 1992-09-29 1994-04-22 Toshiba Corp シーケンス実績データ収集装置

Also Published As

Publication number Publication date
CA1333912C (en) 1995-01-10
HUT44949A (en) 1988-05-30
DD262806A5 (de) 1988-12-14
AU8058287A (en) 1988-05-05
BG60206B2 (en) 1993-12-30
EP0266839A1 (en) 1988-05-11
TR24027A (tr) 1991-02-04
IL84340A0 (en) 1988-04-29
TNSN87125A1 (fr) 1990-01-01
ZW19987A1 (en) 1988-02-03
NO874558D0 (no) 1987-11-02
OA08770A (en) 1989-03-31
CN87107625A (zh) 1988-05-11
MX168831B (es) 1993-06-10
PT86068A (pt) 1988-12-15
AU604069B2 (en) 1990-12-06
MA21099A1 (fr) 1988-07-01
ZA878213B (en) 1988-04-28
NL8602769A (nl) 1988-06-01
JPS63126858A (ja) 1988-05-30
SU1736335A3 (ru) 1992-05-23
NZ222369A (en) 1990-06-26
CN1022321C (zh) 1993-10-06
PL268572A1 (en) 1988-09-01
BR8705824A (pt) 1988-06-28
FI874808A0 (fi) 1987-11-02
NO874558L (no) 1988-05-04
KR880006176A (ko) 1988-07-21
IN170336B (xx) 1992-03-14
FI874808A (fi) 1988-05-04
AR245383A1 (es) 1994-01-31
US4866207A (en) 1989-09-12

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