RU93005167A - METHOD FOR PROCESSING GAS FLOW WHEN PRODUCING MELAMINE FROM UREA - Google Patents

METHOD FOR PROCESSING GAS FLOW WHEN PRODUCING MELAMINE FROM UREA

Info

Publication number
RU93005167A
RU93005167A RU93005167/04A RU93005167A RU93005167A RU 93005167 A RU93005167 A RU 93005167A RU 93005167/04 A RU93005167/04 A RU 93005167/04A RU 93005167 A RU93005167 A RU 93005167A RU 93005167 A RU93005167 A RU 93005167A
Authority
RU
Russia
Prior art keywords
urea
gas flow
processing gas
producing melamine
melamine
Prior art date
Application number
RU93005167/04A
Other languages
Russian (ru)
Other versions
RU2113435C1 (en
Inventor
де Мусдейк К.Г.М. Ван
Х.Я. Янссен
Й.К. Схройэн
Original Assignee
Дсм Н.В.
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
Priority claimed from NL9002606A external-priority patent/NL9002606A/en
Application filed by Дсм Н.В. filed Critical Дсм Н.В.
Publication of RU93005167A publication Critical patent/RU93005167A/en
Application granted granted Critical
Publication of RU2113435C1 publication Critical patent/RU2113435C1/en

Links

Claims (1)

Изобертение относится к избирательному удалению примесей из газового потока, выходящего из реактора синтеза меламина, при получении меламина из мочевины посредством обработки водяным паром при повышенной температуре в присутствии катализатора избирательного вида. Например, может быть выбрано молекулярное сито.The invention relates to the selective removal of impurities from a gas stream leaving a melamine synthesis reactor when producing melamine from urea by steam treatment at elevated temperature in the presence of a selective catalyst. For example, a molecular sieve may be selected.
RU93005167A 1990-11-29 1991-11-28 Method of treating gas stream when preparing melamine from urea or thermal decomposition urea products RU2113435C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9002606A NL9002606A (en) 1990-11-29 1990-11-29 PROCESS FOR THE PREPARATION OF MELAMINE FROM UREA.
NL9002606 1990-11-29

Publications (2)

Publication Number Publication Date
RU93005167A true RU93005167A (en) 1996-12-20
RU2113435C1 RU2113435C1 (en) 1998-06-20

Family

ID=19858050

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93005167A RU2113435C1 (en) 1990-11-29 1991-11-28 Method of treating gas stream when preparing melamine from urea or thermal decomposition urea products

Country Status (18)

Country Link
US (1) US5350849A (en)
EP (1) EP0559817B1 (en)
JP (1) JP3117710B2 (en)
KR (1) KR100192076B1 (en)
AT (1) ATE137750T1 (en)
AU (1) AU647556B2 (en)
BG (1) BG61945B1 (en)
BR (1) BR9107127A (en)
CA (1) CA2097177A1 (en)
DE (1) DE69119433T2 (en)
FI (1) FI932462A (en)
HU (2) HUT64046A (en)
NL (1) NL9002606A (en)
NO (1) NO300419B1 (en)
PL (1) PL168268B1 (en)
RO (1) RO110489B1 (en)
RU (1) RU2113435C1 (en)
WO (1) WO1992009585A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404431B (en) * 1993-09-09 1998-11-25 Chemie Linz Gmbh METHOD FOR THE ENVIRONMENTAL DISPOSAL OF TRIAZINE WASTE
IT1315255B1 (en) * 1999-11-16 2003-02-03 Eurotecnica Dev And Licensing MELAMINE PURIFICATION PROCESS.
DE10301703A1 (en) * 2003-01-17 2004-07-29 Basf Ag Melamine production by urea decomposition is effected in main- and post- reactors containing catalysts of different acidity values
DE502004011507D1 (en) * 2003-01-17 2010-09-23 Basf Se
WO2008151907A2 (en) * 2007-06-14 2008-12-18 Basf Se Method for producing melamine
CN115944942B (en) * 2022-12-06 2024-04-12 四川金象赛瑞化工股份有限公司 Preparation method of cyanamide substance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386999A (en) * 1966-02-10 1968-06-04 Chemical Construction Corp Synthesis of melamine
US3414571A (en) * 1966-09-16 1968-12-03 Melamine Res Corp Process for production of melamine from urea
DE3041324A1 (en) * 1980-11-03 1982-06-16 Basf Ag, 6700 Ludwigshafen METHOD FOR THE SIMULTANEOUS DEGRADATION OF TRACE COMPONENTS IN THE REACTION EXHAUST GASES OF THE MELAMINE SYNTHESIS
NL8105027A (en) * 1981-11-06 1983-06-01 Stamicarbon Converting gaseous urea (deriv.) into carbon di:oxide and ammonia - by contacting with catalyst in presence of water vapour

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