CN1020898C - 分离未转变原料的方法 - Google Patents

分离未转变原料的方法 Download PDF

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Publication number
CN1020898C
CN1020898C CN 87107799 CN87107799A CN1020898C CN 1020898 C CN1020898 C CN 1020898C CN 87107799 CN87107799 CN 87107799 CN 87107799 A CN87107799 A CN 87107799A CN 1020898 C CN1020898 C CN 1020898C
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CN
China
Prior art keywords
pressure
solution
synthesis
urea
gas mixture
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 - Lifetime
Application number
CN 87107799
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English (en)
Chinese (zh)
Other versions
CN87107799A (zh
Inventor
藤井英嗣
内野秀敏
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
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Toyo Engineering Corp
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Publication date
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Publication of CN87107799A publication Critical patent/CN87107799A/zh
Application granted granted Critical
Publication of CN1020898C publication Critical patent/CN1020898C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CN 87107799 1986-10-30 1987-10-29 分离未转变原料的方法 Expired - Lifetime CN1020898C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25940486A JPS63112552A (ja) 1986-10-30 1986-10-30 未転化物の分離方法
JP259404/86 1986-10-30

Publications (2)

Publication Number Publication Date
CN87107799A CN87107799A (zh) 1988-07-06
CN1020898C true CN1020898C (zh) 1993-05-26

Family

ID=17333651

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 87107799 Expired - Lifetime CN1020898C (zh) 1986-10-30 1987-10-29 分离未转变原料的方法

Country Status (5)

Country Link
JP (1) JPS63112552A (enrdf_load_stackoverflow)
CN (1) CN1020898C (enrdf_load_stackoverflow)
BR (1) BR8705723A (enrdf_load_stackoverflow)
GB (1) GB2196965B (enrdf_load_stackoverflow)
IN (1) IN171250B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1039413C (zh) * 1993-09-16 1998-08-05 中国化学工程总公司 新汽提循环法尿素生产方法及其装置
CN1041199C (zh) * 1994-06-18 1998-12-16 中国五环化学工程公司 全循环法尿素节能生产新装置
JP4358428B2 (ja) 2000-11-01 2009-11-04 東洋エンジニアリング株式会社 尿素製造方法
EA030380B1 (ru) * 2012-05-03 2018-07-31 Стамикарбон Б.В. Способ и установка для производства мочевины из аммиака и диоксида углерода
CN104981283B (zh) * 2013-02-08 2018-08-07 东洋工程株式会社 从燃烧废气回收二氧化碳的方法
GB2557080B (en) * 2015-09-08 2020-04-29 Toyo Engineering Corp Urea manufacturing method and urea manufacturing apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1068268B (it) * 1976-09-09 1985-03-21 Snam Progetti Procedimento per la produzione di urea e purificazione delle acque
JPS5573651A (en) * 1978-11-30 1980-06-03 Toyo Eng Corp Preparation of urea
JPS5746954A (en) * 1980-09-05 1982-03-17 Mitsui Toatsu Chem Inc Synthesis of urea
JPS5750954A (en) * 1980-09-12 1982-03-25 Mitsui Toatsu Chem Inc Synthesis of urea
JPS5867661A (ja) * 1981-10-16 1983-04-22 Mitsui Toatsu Chem Inc 尿素合成法
JPS61109760A (ja) * 1984-11-02 1986-05-28 Toyo Eng Corp 尿素製造法

Also Published As

Publication number Publication date
IN171250B (enrdf_load_stackoverflow) 1992-08-22
GB2196965A (en) 1988-05-11
JPS63112552A (ja) 1988-05-17
CN87107799A (zh) 1988-07-06
GB8725321D0 (en) 1987-12-02
GB2196965B (en) 1990-07-11
BR8705723A (pt) 1988-05-31

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C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
C17 Cessation of patent right
CX01 Expiry of patent term