CA1250314A - Urea synthesizing process utilizing silicon carbide materials in its equipment - Google Patents

Urea synthesizing process utilizing silicon carbide materials in its equipment

Info

Publication number
CA1250314A
CA1250314A CA000375434A CA375434A CA1250314A CA 1250314 A CA1250314 A CA 1250314A CA 000375434 A CA000375434 A CA 000375434A CA 375434 A CA375434 A CA 375434A CA 1250314 A CA1250314 A CA 1250314A
Authority
CA
Canada
Prior art keywords
silicon carbide
equipment
materials
synthesizing process
urea synthesizing
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
CA000375434A
Other languages
English (en)
French (fr)
Inventor
Morihisa Hidaki
Tateaki Deguchi
Keiichi Matsumoto
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.)
Toyo Engineering Corp
Original Assignee
Toyo Engineering Corp
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 Toyo Engineering Corp filed Critical Toyo Engineering Corp
Application granted granted Critical
Publication of CA1250314A publication Critical patent/CA1250314A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • 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
    • B01J2219/0218—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components of ceramic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lift Valve (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Details Of Valves (AREA)
CA000375434A 1980-04-15 1981-04-14 Urea synthesizing process utilizing silicon carbide materials in its equipment Expired CA1250314A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4864180A JPS56147756A (en) 1980-04-15 1980-04-15 Synthetic method of urea using silicon carbide material in apparatus
JP48641/1980 1980-04-15

Publications (1)

Publication Number Publication Date
CA1250314A true CA1250314A (en) 1989-02-21

Family

ID=12808989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000375434A Expired CA1250314A (en) 1980-04-15 1981-04-14 Urea synthesizing process utilizing silicon carbide materials in its equipment

Country Status (9)

Country Link
JP (1) JPS56147756A (OSRAM)
BR (1) BR8102284A (OSRAM)
CA (1) CA1250314A (OSRAM)
DE (1) DE3114218A1 (OSRAM)
FR (1) FR2480280A1 (OSRAM)
GB (1) GB2073751B (OSRAM)
IN (1) IN155840B (OSRAM)
IT (1) IT1137354B (OSRAM)
NL (1) NL8101499A (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2608234B2 (ja) * 1992-02-26 1997-05-07 東洋エンジニアリング株式会社 尿素合成プラント用減圧弁
US20110033018A1 (en) * 2009-08-10 2011-02-10 Caldera Engineering, Lc Method for bonding ceramic materials
US9446367B2 (en) 2014-08-15 2016-09-20 Rec Silicon Inc Joint design for segmented silicon carbide liner in a fluidized bed reactor
US9238211B1 (en) 2014-08-15 2016-01-19 Rec Silicon Inc Segmented silicon carbide liner
US9662628B2 (en) 2014-08-15 2017-05-30 Rec Silicon Inc Non-contaminating bonding material for segmented silicon carbide liner in a fluidized bed reactor
US20250108350A1 (en) * 2022-03-28 2025-04-03 Stamicarbon B.V. Urea plant with valve; urea production process; use and method

Also Published As

Publication number Publication date
IN155840B (OSRAM) 1985-03-16
JPS56147756A (en) 1981-11-16
BR8102284A (pt) 1981-12-01
IT1137354B (it) 1986-09-10
FR2480280B1 (OSRAM) 1983-07-01
DE3114218A1 (de) 1982-03-04
FR2480280A1 (fr) 1981-10-16
GB2073751B (en) 1984-02-01
IT8121139A0 (it) 1981-04-14
GB2073751A (en) 1981-10-21
NL8101499A (nl) 1981-11-02

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Legal Events

Date Code Title Description
MKEX Expiry