ZA852725B - Process for the synthesis of urea and material used in it - Google Patents

Process for the synthesis of urea and material used in it

Info

Publication number
ZA852725B
ZA852725B ZA852725A ZA852725A ZA852725B ZA 852725 B ZA852725 B ZA 852725B ZA 852725 A ZA852725 A ZA 852725A ZA 852725 A ZA852725 A ZA 852725A ZA 852725 B ZA852725 B ZA 852725B
Authority
ZA
South Africa
Prior art keywords
urea
synthesis
material used
Prior art date
Application number
ZA852725A
Other languages
English (en)
Inventor
Sergio Menicatti
Cesare Miola
Franco Granelli
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
Publication of ZA852725B publication Critical patent/ZA852725B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/2415—Tubular reactors
    • B01J19/2425—Tubular reactors in parallel
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
    • B01J2219/0236—Metal based
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
    • B01J2219/0277—Metal based
    • B01J2219/0286—Steel
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
ZA852725A 1984-04-20 1985-04-11 Process for the synthesis of urea and material used in it ZA852725B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8420635A IT1209532B (it) 1984-04-20 1984-04-20 Processo per la sintesi di urea e materiale utilizzato nello stesso.

Publications (1)

Publication Number Publication Date
ZA852725B true ZA852725B (en) 1985-11-27

Family

ID=11169848

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA852725A ZA852725B (en) 1984-04-20 1985-04-11 Process for the synthesis of urea and material used in it

Country Status (22)

Country Link
US (1) US4899813A (el)
JP (1) JPS60233047A (el)
AR (1) AR240914A1 (el)
AU (1) AU572284B2 (el)
BE (1) BE902246A (el)
CA (1) CA1331993C (el)
DE (1) DE3514250A1 (el)
DK (1) DK175985D0 (el)
ES (1) ES543108A0 (el)
FR (1) FR2563217A1 (el)
GB (1) GB2157687B (el)
GR (1) GR850954B (el)
IN (1) IN164410B (el)
IT (1) IT1209532B (el)
LU (1) LU85857A1 (el)
MX (1) MX160685A (el)
NL (1) NL8501151A (el)
NO (1) NO163559C (el)
PT (1) PT80322B (el)
SE (1) SE8501859L (el)
SU (1) SU1731045A3 (el)
ZA (1) ZA852725B (el)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA26895C2 (uk) * 1990-03-12 1999-12-29 Уріа Казале С.А. Спосіб коhдеhсації парів аміаку, вуглекислого газу і води та пристрій для його здійсhеhhя
DE9405062U1 (de) * 1994-03-24 1994-05-26 Hoval Interliz Ag, Vaduz-Neugut Wärmetauscherrohr für Heizkessel
DE19534823C2 (de) * 1995-09-20 2002-08-22 Ruhr Oel Gmbh Rohrbündel-Wärmeübertrager
AT403735B (de) * 1996-03-11 1998-05-25 Vaillant Gmbh Lamellenwärmetauscher
US6318094B1 (en) * 2000-08-11 2001-11-20 Paul Mueller Company Bimetallic tube in a heat exchanger of an ice making machine
ITMI20021009A1 (it) * 2002-05-13 2003-11-13 Snam Progetti Apparecchiatura a fascio tubiero per processare fluidi corrosivi
EP1577632A1 (en) * 2004-03-16 2005-09-21 Urea Casale S.A. Apparatus for treating highly corrosive agents
US7922065B2 (en) * 2004-08-02 2011-04-12 Ati Properties, Inc. Corrosion resistant fluid conducting parts, methods of making corrosion resistant fluid conducting parts and equipment and parts replacement methods utilizing corrosion resistant fluid conducting parts
ITMI20061223A1 (it) * 2006-06-26 2007-12-27 Snam Progetti Tubo bimetallico resistente alla corrosione e suo utilizzo in apparecchiature a fascio tubiwero
IT1391426B1 (it) 2008-07-17 2011-12-23 Snam Progetti Apparecchiatura a fascio tubiero per processare fluidi corrosivi
EP2286909A1 (en) * 2009-08-17 2011-02-23 Stamicarbon B.V. An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process
EP2801396A1 (en) * 2013-05-10 2014-11-12 Casale Sa Use of duplex stainless steel in an ammonia-stripping of urea plants
RU2675952C2 (ru) * 2014-01-10 2018-12-25 Эуротекника Меламине, Люксембург, Цвайгнидерлассунг ин Иттиген Трубчатый теплообменник и установка, в частности реактор для производства меламина, содержащая такой теплообменник
WO2017003711A1 (en) * 2015-06-30 2017-01-05 Uop Llc Heat exchangers for low temperature carbon dioxide separation from natural gas
EP3178535A1 (en) * 2015-12-11 2017-06-14 Casale SA A urea process with high-temperature stripping
WO2018002295A1 (en) * 2016-07-01 2018-01-04 Sandvik Intellectual Property Ab Bimetallic tube and method for manufacturing a bimetallic tube
MY196574A (en) 2017-10-27 2023-04-19 Stamicarbon High Pressure Carbamate Condenser
ES2793387T3 (es) 2017-12-22 2020-11-13 Saipem Spa Usos de aceros inoxidables dúplex
EP3513871A1 (en) * 2018-01-17 2019-07-24 Yara International ASA Carbamate decomposer comprising flow distributor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041152A (en) * 1957-02-21 1962-06-26 Chemical Construction Corp Apparatus for high temperature and pressure chemical reactions
FR1356620A (fr) * 1963-02-01 1964-03-27 Chemical Processes Of Ohio Procédé de synthèse de l'urée à partir d'ammoniac et de gaz carbonique et installation pour sa mise en oeuvre
BE632275A (el) * 1963-02-01 1900-01-01
US3515520A (en) * 1967-02-13 1970-06-02 Universal Oil Prod Co Reactor with internal protective sleeve for corrosive systems
NO145949C (no) * 1967-09-29 1982-06-30 Snam Progetti Fremgangsmaate for fremstilling av urea
FR2042135A5 (el) * 1969-04-04 1971-02-05 Snam Progetti
IL36465A (en) * 1970-04-02 1974-07-31 Zardi U Process for the production of urea
GB1327321A (en) * 1971-05-25 1973-08-22 Chemical Construction Corp Process for urea synthesis
DE2153437B2 (de) * 1971-10-27 1974-11-21 Metallgesellschaft Ag, 6000 Frankfurt Reaktor zur Herstellung von Methanol
US4210600A (en) * 1976-10-28 1980-07-01 Snamprogetti, S.P.A. Method for the preparation of urea with a high-yield reactor
US4291104A (en) * 1978-04-17 1981-09-22 Fansteel Inc. Brazed corrosion resistant lined equipment
IT1141030B (it) * 1980-08-29 1986-10-01 Snam Progetti Procedimento per la produzione di urea

Also Published As

Publication number Publication date
IN164410B (el) 1989-03-11
GR850954B (el) 1985-11-25
BE902246A (fr) 1985-10-21
DE3514250A1 (de) 1985-11-07
AU572284B2 (en) 1988-05-05
GB2157687A (en) 1985-10-30
DK175985D0 (da) 1985-04-18
AR240914A1 (es) 1991-03-27
AU4124185A (en) 1985-10-24
DE3514250C2 (el) 1988-12-22
LU85857A1 (fr) 1985-12-16
FR2563217A1 (fr) 1985-10-25
US4899813A (en) 1990-02-13
PT80322A (en) 1985-05-01
SE8501859L (sv) 1985-10-21
AR240914A2 (es) 1991-03-27
GB8510103D0 (en) 1985-05-30
MX160685A (es) 1990-04-09
IT1209532B (it) 1989-08-30
JPS60233047A (ja) 1985-11-19
GB2157687B (en) 1987-10-07
PT80322B (en) 1987-02-16
IT8420635A0 (it) 1984-04-20
NO163559C (no) 1990-06-20
NL8501151A (nl) 1985-11-18
NO163559B (no) 1990-03-12
ES8603288A1 (es) 1985-12-16
SE8501859D0 (sv) 1985-04-16
CA1331993C (en) 1994-09-13
NO851574L (no) 1985-10-21
SU1731045A3 (ru) 1992-04-30
ES543108A0 (es) 1985-12-16

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