GB1192044A - Inhibiting Corrosion in Urea Synthesis Reactors - Google Patents

Inhibiting Corrosion in Urea Synthesis Reactors

Info

Publication number
GB1192044A
GB1192044A GB2731567A GB2731567A GB1192044A GB 1192044 A GB1192044 A GB 1192044A GB 2731567 A GB2731567 A GB 2731567A GB 2731567 A GB2731567 A GB 2731567A GB 1192044 A GB1192044 A GB 1192044A
Authority
GB
United Kingdom
Prior art keywords
urea
urea synthesis
inhibiting corrosion
synthesis reactors
june
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2731567A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CB&I Technology Inc
Original Assignee
Lummus Co
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 Lummus Co filed Critical Lummus Co
Publication of GB1192044A publication Critical patent/GB1192044A/en
Expired legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • 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

Abstract

1,192,044. Urea. LUMMUS CO. 13 June 1967 [13 June, 1966], No. 27315/67. Heading C2C. [Also in Division C7] Urea is synthesized by reacting ammonia and carbon dioxide at a high temperature and pressure in the presence of a limited amount of oxygen and the process is carried out in an apparatus made of a fully austenitic steel, which is resistant to corrosion by the molten ammonium carbamate intermediate product and comprises :- with the balance, apart from carbon and impurities, being iron, in which the amounts of Mn + N, Ni + Mo or Ni+Mn+N are sufficient to stabilize the austenitic structure of the alloy.
GB2731567A 1966-06-13 1967-06-13 Inhibiting Corrosion in Urea Synthesis Reactors Expired GB1192044A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55691566A 1966-06-13 1966-06-13

Publications (1)

Publication Number Publication Date
GB1192044A true GB1192044A (en) 1970-05-13

Family

ID=24223335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2731567A Expired GB1192044A (en) 1966-06-13 1967-06-13 Inhibiting Corrosion in Urea Synthesis Reactors

Country Status (2)

Country Link
ES (1) ES341669A1 (en)
GB (1) GB1192044A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570083A1 (en) * 1984-09-07 1986-03-14 Creusot Loire Metal components which can be employed in plants for the synthesis of urea
EP1160199A3 (en) * 2000-05-23 2003-06-11 Rohm And Haas Company Method and apparatus for preventing iron contamination in an ammonia recovery process
US9890114B2 (en) 2013-05-28 2018-02-13 Toyo Engineering Corporation Urea synthesis method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570083A1 (en) * 1984-09-07 1986-03-14 Creusot Loire Metal components which can be employed in plants for the synthesis of urea
EP1160199A3 (en) * 2000-05-23 2003-06-11 Rohm And Haas Company Method and apparatus for preventing iron contamination in an ammonia recovery process
US6706093B2 (en) 2000-05-23 2004-03-16 Rohm And Haas Company Method and apparatus for preventing iron contamination in corrosive service
US9890114B2 (en) 2013-05-28 2018-02-13 Toyo Engineering Corporation Urea synthesis method

Also Published As

Publication number Publication date
ES341669A1 (en) 1968-07-01

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed