IE36076L - Processing plant. - Google Patents

Processing plant.

Info

Publication number
IE36076L
IE36076L IE720164A IE16472A IE36076L IE 36076 L IE36076 L IE 36076L IE 720164 A IE720164 A IE 720164A IE 16472 A IE16472 A IE 16472A IE 36076 L IE36076 L IE 36076L
Authority
IE
Ireland
Prior art keywords
weight
melamine
feb
urea
processing plant
Prior art date
Application number
IE720164A
Other versions
IE36076B1 (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
Publication of IE36076L publication Critical patent/IE36076L/en
Publication of IE36076B1 publication Critical patent/IE36076B1/en

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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

1333544 Urea; melamine STAMIOARBON NV 9 Feb 1972 [13 Feb 1971] 6155/72 Heading C2C In the synthesis of urea or melamine, the processing of the intermediate ammonium carbamate solution at elevated temperature is conducted in plant wherein at least the surfaces thereof which are in contact with the solution are made of a nickel-free ferritic steel consisting essentially of at least 25% by weight of chromium, from 0 to 3% by weight of molybdenum, and having a combined content of carbon plus nitrogen of not more than 0À035% by weight and the balance of iron. [GB1333544A]
IE164/72A 1971-02-13 1972-02-10 Method for processing at elevated temperature solutions containing ammonium carbamate IE36076B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7101951,A NL169588C (en) 1971-02-13 1971-02-13 PROCESS FOR THE SOLUTIONS CONTAINING INCREASED AMMONIUM CARBAMATE

Publications (2)

Publication Number Publication Date
IE36076L true IE36076L (en) 1972-08-13
IE36076B1 IE36076B1 (en) 1976-08-04

Family

ID=19812478

Family Applications (1)

Application Number Title Priority Date Filing Date
IE164/72A IE36076B1 (en) 1971-02-13 1972-02-10 Method for processing at elevated temperature solutions containing ammonium carbamate

Country Status (20)

Country Link
AU (1) AU463665B2 (en)
BE (1) BE779258A (en)
BR (1) BR7200837D0 (en)
CA (1) CA966638A (en)
CS (1) CS163267B2 (en)
DD (1) DD95368A5 (en)
DE (1) DE2206615B2 (en)
ES (1) ES399672A1 (en)
FR (1) FR2125445B1 (en)
GB (1) GB1333544A (en)
HU (1) HU173919B (en)
IE (1) IE36076B1 (en)
IT (1) IT948491B (en)
NL (1) NL169588C (en)
NO (1) NO137010C (en)
RO (1) RO63301A (en)
SE (1) SE387336B (en)
TR (1) TR18774A (en)
ZA (1) ZA72781B (en)
ZM (1) ZM2772A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8304381A (en) * 1983-12-21 1985-07-16 Stamicarbon METHOD AND APPARATUS FOR PREPARING MELAMINE
JPS63121641A (en) * 1986-11-10 1988-05-25 Nippon Yakin Kogyo Co Ltd External coating of sheathed heater made of austenitic stainless steel
EP1921043B1 (en) * 2006-11-01 2012-01-18 Mitsubishi Gas Chemical Company, Inc. Method of recovering ammonia and process for producing a nitrile compound making use of the ammonia recovery method
AU2020311257B2 (en) 2019-07-05 2023-03-02 Stamicarbon B.V. Ferritic steel parts in urea plants

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1986973A (en) * 1930-11-17 1935-01-08 Du Pont Prevention of corrosion in urea synthesis
US2129689A (en) * 1936-12-04 1938-09-13 Du Pont Urea manufacture
US2183715A (en) * 1938-05-21 1939-12-19 Electro Metallurg Co Corrosion resistant steel alloy
US2624671A (en) * 1951-01-19 1953-01-06 Union Carbide & Carbon Corp Ferritic chromium steels
NL165788C (en) * 1967-03-15 1981-05-15 Du Pont METHOD FOR PREPARING AN IRON-CHROME ALLOY.

Also Published As

Publication number Publication date
FR2125445B1 (en) 1977-07-15
TR18774A (en) 1977-08-23
NO137010B (en) 1977-09-05
CS163267B2 (en) 1975-08-29
NL169588C (en) 1982-08-02
FR2125445A1 (en) 1972-09-29
HU173919B (en) 1979-09-28
SE387336B (en) 1976-09-06
IE36076B1 (en) 1976-08-04
DD95368A5 (en) 1973-02-05
BE779258A (en) 1972-08-11
BR7200837D0 (en) 1973-06-21
ES399672A1 (en) 1976-05-01
NL169588B (en) 1982-03-01
CA966638A (en) 1975-04-29
NO137010C (en) 1977-12-14
IT948491B (en) 1973-05-30
DE2206615B2 (en) 1980-05-29
DE2206615A1 (en) 1972-08-31
ZM2772A1 (en) 1973-02-21
ZA72781B (en) 1972-10-25
AU463665B2 (en) 1975-07-31
GB1333544A (en) 1973-10-10
RO63301A (en) 1978-07-15
AU3881372A (en) 1973-08-16
NL7101951A (en) 1972-08-15

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