IT1137354B - PROCESS FOR THE SYNTHESIS OF UREA USING IN ITS EQUIPMENT SILICON CARBIDE-BASED MATERIALS - Google Patents

PROCESS FOR THE SYNTHESIS OF UREA USING IN ITS EQUIPMENT SILICON CARBIDE-BASED MATERIALS

Info

Publication number: IT1137354B
Authority: IT; Italy
Prior art keywords: urea; synthesis; silicon carbide; based materials; equipment silicon
Prior art date: 1980-04-15

Application number

IT21139/81A

Other languages

Italian (it)

Other versions

IT8121139A0 (en

Inventor

Hidaki Morihisa

Deguchi Tateaki

Matsumoto Keiichi

Original Assignee

Toyo Engineering Corp

Mitsui Toatsu Chemicals

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.)

1980-04-15

Filing date

1981-04-14

Publication date

1986-09-10

1981-04-14 Application filed by Toyo Engineering Corp, Mitsui Toatsu Chemicals filed Critical Toyo Engineering Corp

1981-04-14 Publication of IT8121139A0 publication Critical patent/IT8121139A0/en

1986-09-10 Application granted granted Critical

1986-09-10 Publication of IT1137354B publication Critical patent/IT1137354B/en

Links

XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title 1
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
230000015572 biosynthetic process Effects 0.000 title 1
239000004202 carbamide Substances 0.000 title 1
239000000463 material Substances 0.000 title 1
238000000034 method Methods 0.000 title 1
229910052710 silicon Inorganic materials 0.000 title 1
239000010703 silicon Substances 0.000 title 1
238000003786 synthesis reaction Methods 0.000 title 1

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)
Physical Or Chemical Processes And Apparatus (AREA)
Details Of Valves (AREA)
Carbon And Carbon Compounds (AREA)

IT21139/81A 1980-04-15 1981-04-14 PROCESS FOR THE SYNTHESIS OF UREA USING IN ITS EQUIPMENT SILICON CARBIDE-BASED MATERIALS IT1137354B (en)

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 (2)

Publication Number	Publication Date
IT8121139A0 IT8121139A0 (en)	1981-04-14
IT1137354B true IT1137354B (en)	1986-09-10

Family

ID=12808989

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT21139/81A IT1137354B (en)	1980-04-15	1981-04-14	PROCESS FOR THE SYNTHESIS OF UREA USING IN ITS EQUIPMENT SILICON CARBIDE-BASED MATERIALS

Country Status (9)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2608234B2 (en) *	1992-02-26	1997-05-07	東洋エンジニアリング株式会社	Pressure reducing valve for urea synthesis plant
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
WO2023191620A1 (en) *	2022-03-28	2023-10-05	Stamicarbon B.V.	Urea plant with valve; urea production process; use and method

1980
- 1980-04-15 JP JP4864180A patent/JPS56147756A/en active Pending
1981
- 1981-03-25 IN IN323/CAL/81A patent/IN155840B/en unknown
- 1981-03-26 NL NL8101499A patent/NL8101499A/en not_active Application Discontinuation
- 1981-04-01 GB GB8110277A patent/GB2073751B/en not_active Expired
- 1981-04-08 DE DE19813114218 patent/DE3114218A1/en not_active Withdrawn
- 1981-04-14 BR BR8102284A patent/BR8102284A/en unknown
- 1981-04-14 IT IT21139/81A patent/IT1137354B/en active
- 1981-04-14 CA CA000375434A patent/CA1250314A/en not_active Expired
- 1981-04-15 FR FR8107634A patent/FR2480280A1/en active Granted

Also Published As

Publication number	Publication date
FR2480280A1 (en)	1981-10-16
FR2480280B1 (en)	1983-07-01
JPS56147756A (en)	1981-11-16
IT8121139A0 (en)	1981-04-14
NL8101499A (en)	1981-11-02
GB2073751B (en)	1984-02-01
CA1250314A (en)	1989-02-21
GB2073751A (en)	1981-10-21
BR8102284A (en)	1981-12-01
DE3114218A1 (en)	1982-03-04
IN155840B (en)	1985-03-16

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