JPS5668657A - Synthesis of urea - Google Patents

Synthesis of urea

Info

Publication number
JPS5668657A
JPS5668657A JP14389479A JP14389479A JPS5668657A JP S5668657 A JPS5668657 A JP S5668657A JP 14389479 A JP14389479 A JP 14389479A JP 14389479 A JP14389479 A JP 14389479A JP S5668657 A JPS5668657 A JP S5668657A
Authority
JP
Japan
Prior art keywords
urea
gas
liquid
synthesis
tube
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.)
Granted
Application number
JP14389479A
Other languages
Japanese (ja)
Other versions
JPS5822147B2 (en
Inventor
Hiroshi Ono
Katsumi Kagechika
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
Priority to JP54143894A priority Critical patent/JPS5822147B2/en
Publication of JPS5668657A publication Critical patent/JPS5668657A/en
Publication of JPS5822147B2 publication Critical patent/JPS5822147B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To synthesize urea in high conversion without increasing the volume of the reaction tube, by dispersing CO2 gas, NH3 gas, etc. in liquid as fine bubbles, mixing the dispersion in a gas-liquid mixer, and reacting at the temperature and pressure of the urea synthesis.
CONSTITUTION: A gas-liquid mixture of CO2, NH3 and unreacted and recovered CO2 and NH3 (the weight ratio of liquid/gas is at least 2.5, pref. 2.6W14.0) is passed through an inline static mixer 7 (made of corrosion proof material such as zircon), and reacted in a urea-synthesis reactor tube 1 under the temperature and pressure of urea systhesis to obtain urea. The gas is dispersed in the liquid phase as fine bubbles before introduced into the urea synthesis zone. The gas-liquid mixer is pref. placed outside of the urea synthesis tube and near the inlet thereof. The same synthesis yield can be attained under the same conditions with smaller urea synthesis tube by the present process, and the initial cost of the plant can be reduced.
COPYRIGHT: (C)1981,JPO&Japio
JP54143894A 1979-11-08 1979-11-08 Urea synthesis method Expired JPS5822147B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54143894A JPS5822147B2 (en) 1979-11-08 1979-11-08 Urea synthesis method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54143894A JPS5822147B2 (en) 1979-11-08 1979-11-08 Urea synthesis method

Publications (2)

Publication Number Publication Date
JPS5668657A true JPS5668657A (en) 1981-06-09
JPS5822147B2 JPS5822147B2 (en) 1983-05-06

Family

ID=15349512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54143894A Expired JPS5822147B2 (en) 1979-11-08 1979-11-08 Urea synthesis method

Country Status (1)

Country Link
JP (1) JPS5822147B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005206770A (en) * 2004-01-19 2005-08-04 Ics Kk Manufacturing process of fatty acid ester and fuel containing the fatty acid ester
JP2015110229A (en) * 2004-08-02 2015-06-18 エイティーアイ・プロパティーズ・インコーポレーテッド Method for replacing corroded fluid conducting parts in apparatus by welding and parts obtained thereby
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714088A1 (en) * 1987-04-28 1988-12-01 Messerschmitt Boelkow Blohm STRAP FOR A RESTRAINT SYSTEM IN A VEHICLE, PARTICULARLY IN AN AIRCRAFT

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005206770A (en) * 2004-01-19 2005-08-04 Ics Kk Manufacturing process of fatty acid ester and fuel containing the fatty acid ester
JP2015110229A (en) * 2004-08-02 2015-06-18 エイティーアイ・プロパティーズ・インコーポレーテッド Method for replacing corroded fluid conducting parts in apparatus by welding and parts obtained thereby
US9662740B2 (en) 2004-08-02 2017-05-30 Ati Properties Llc Method for making corrosion resistant fluid conducting parts
JP2017094322A (en) * 2004-08-02 2017-06-01 エイティーアイ・プロパティーズ・エルエルシー Method for replacing corroded fluid conducting parts in equipment via welding, and parts obtained thereby
US10118259B1 (en) 2012-12-11 2018-11-06 Ati Properties Llc Corrosion resistant bimetallic tube manufactured by a two-step process

Also Published As

Publication number Publication date
JPS5822147B2 (en) 1983-05-06

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