DE3114218A1 - "verfahren zum synthetischen herstellen von harnstoff unter verwendung von siliziumkarbidmaterialien in der anlage" - Google Patents

"verfahren zum synthetischen herstellen von harnstoff unter verwendung von siliziumkarbidmaterialien in der anlage"

Info

Publication number
DE3114218A1
DE3114218A1 DE19813114218 DE3114218A DE3114218A1 DE 3114218 A1 DE3114218 A1 DE 3114218A1 DE 19813114218 DE19813114218 DE 19813114218 DE 3114218 A DE3114218 A DE 3114218A DE 3114218 A1 DE3114218 A1 DE 3114218A1
Authority
DE
Germany
Prior art keywords
silicon carbide
urea
plant
materials
valve
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.)
Withdrawn
Application number
DE19813114218
Other languages
German (de)
English (en)
Inventor
Tateaki Deguchi
Morihisa Chiba Hidaki
Keiichi Mobara Chiba 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.)
Mitsui Toatsu Chemicals Inc
Toyo Engineering Corp
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc, Toyo Engineering Corp filed Critical Mitsui Toatsu Chemicals Inc
Publication of DE3114218A1 publication Critical patent/DE3114218A1/de
Withdrawn legal-status Critical Current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)
  • Details Of Valves (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Carbon And Carbon Compounds (AREA)
DE19813114218 1980-04-15 1981-04-08 "verfahren zum synthetischen herstellen von harnstoff unter verwendung von siliziumkarbidmaterialien in der anlage" Withdrawn DE3114218A1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE3114218A1 true DE3114218A1 (de) 1982-03-04

Family

ID=12808989

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813114218 Withdrawn DE3114218A1 (de) 1980-04-15 1981-04-08 "verfahren zum synthetischen herstellen von harnstoff unter verwendung von siliziumkarbidmaterialien in der anlage"

Country Status (9)

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

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
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
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
WO2023191620A1 (en) * 2022-03-28 2023-10-05 Stamicarbon B.V. Urea plant with valve; urea production process; use and method

Also Published As

Publication number Publication date
JPS56147756A (en) 1981-11-16
GB2073751A (en) 1981-10-21
FR2480280A1 (fr) 1981-10-16
CA1250314A (en) 1989-02-21
NL8101499A (nl) 1981-11-02
BR8102284A (pt) 1981-12-01
IN155840B (enrdf_load_stackoverflow) 1985-03-16
FR2480280B1 (enrdf_load_stackoverflow) 1983-07-01
IT1137354B (it) 1986-09-10
GB2073751B (en) 1984-02-01
IT8121139A0 (it) 1981-04-14

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee