HRP960044A2 - Process for purifying melamine - Google Patents

Process for purifying melamine Download PDF

Info

Publication number: HRP960044A2
Authority: HR; Croatia
Prior art keywords: melamine; pressure; process according; ammonia; bar
Prior art date: 1995-02-03

Application number

HRA186/95A

Other languages

English (en)

Croatian (hr)

Inventor

Helmut Fingrhut

Original Assignee

Helmut Fingrhut

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.)

1995-02-03

Filing date

1996-01-30

Publication date

1997-12-31

1996-01-30 Application filed by Helmut Fingrhut filed Critical Helmut Fingrhut

1997-12-31 Publication of HRP960044A2 publication Critical patent/HRP960044A2/hr

Links

229920000877 Melamine resin Polymers 0.000 title claims description 39
JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims description 38
238000000034 method Methods 0.000 title claims description 35
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 31
229910021529 ammonia Inorganic materials 0.000 claims description 10
238000012545 processing Methods 0.000 claims description 8
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 7
239000004202 carbamide Substances 0.000 claims description 7
229910000069 nitrogen hydride Inorganic materials 0.000 claims description 5
238000006243 chemical reaction Methods 0.000 claims description 4
238000004140 cleaning Methods 0.000 claims description 4
239000007788 liquid Substances 0.000 claims description 4
239000000843 powder Substances 0.000 claims description 4
238000004519 manufacturing process Methods 0.000 claims description 3
150000007974 melamines Chemical class 0.000 claims description 3
238000000926 separation method Methods 0.000 claims description 3
238000002844 melting Methods 0.000 claims description 2
230000008018 melting Effects 0.000 claims description 2
239000000203 mixture Substances 0.000 claims description 2
239000012535 impurity Substances 0.000 description 7
239000002674 ointment Substances 0.000 description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
101000797621 Rattus norvegicus Ameloblastin Proteins 0.000 description 4
239000007789 gas Substances 0.000 description 4
239000012071 phase Substances 0.000 description 4
YZEZMSPGIPTEBA-UHFFFAOYSA-N 2-n-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(NC=2N=C(N)N=C(N)N=2)=N1 YZEZMSPGIPTEBA-UHFFFAOYSA-N 0.000 description 2
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
JHEXGENUDVZLKI-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]urea Chemical compound NC(=O)NNC1=NC(N)=NC(N)=N1 JHEXGENUDVZLKI-UHFFFAOYSA-N 0.000 description 2
239000003513 alkali Substances 0.000 description 2
238000001816 cooling Methods 0.000 description 2
238000007654 immersion Methods 0.000 description 2
239000000155 melt Substances 0.000 description 2
238000002156 mixing Methods 0.000 description 2
235000007173 Abies balsamea Nutrition 0.000 description 1
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
239000004857 Balsam Substances 0.000 description 1
244000018716 Impatiens biflora Species 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000006227 byproduct Substances 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
239000007791 liquid phase Substances 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
238000001953 recrystallisation Methods 0.000 description 1
238000012958 reprocessing Methods 0.000 description 1
239000007858 starting material Substances 0.000 description 1
238000003786 synthesis reaction Methods 0.000 description 1
239000002699 waste material Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/62—Purification of melamine
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Paper (AREA)

HRA186/95A 1995-02-03 1996-01-30 Process for purifying melamine HRP960044A2 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
AT0018695A AT402296B (de)	1995-02-03	1995-02-03	Verfahren zur reinigung von melamin

Publications (1)

Publication Number	Publication Date
HRP960044A2 true HRP960044A2 (en)	1997-12-31

Family

ID=3483772

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
HRA186/95A HRP960044A2 (en)	1995-02-03	1996-01-30	Process for purifying melamine

Country Status (12)

Country	Link
EP (1)	EP0807107A1 (de)
JP (1)	JPH11506415A (de)
KR (1)	KR19980701828A (de)
CN (1)	CN1172480A (de)
AT (1)	AT402296B (de)
BR (1)	BR9607332A (de)
HR (1)	HRP960044A2 (de)
IL (1)	IL117016A0 (de)
NZ (1)	NZ298425A (de)
PL (1)	PL321596A1 (de)
TW (1)	TW305838B (de)
WO (1)	WO1996023778A1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT403579B (de) *	1995-12-07	1998-03-25	Agrolinz Melamin Gmbh	Verfahren zur herstellung von hochreinem melamin
NL1003105C2 (nl) *	1996-05-14	1997-11-18	Dsm Nv	Werkwijze voor de bereiding van melamine.
NL1003328C2 (nl)	1996-06-13	1997-12-17	Dsm Nv	Werkwijze voor het bereiden van melamine.
NL1003709C2 (nl)	1996-07-30	1998-02-05	Dsm Nv	Werkwijze voor het bereiden van melamine.
NL1006095C2 (nl) *	1997-05-21	1998-11-25	Dsm Nv	Werkwijze voor het bereiden van melamine.
AU728549B2 (en)	1997-05-21	2001-01-11	Dsm Ip Assets B.V.	Method for preparing melamine
WO1998054160A1 (en)	1997-05-28	1998-12-03	Dsm N.V.	Method for preparing melamine
NL1006147C2 (nl) *	1997-05-28	1998-12-01	Dsm Nv	Werkwijze voor het bereiden van melamine.
NL1006192C2 (nl)	1997-06-02	1998-12-03	Dsm Nv	Werkwijze voor het bereiden van melamine.
ID24238A (id)	1997-06-02	2000-07-13	Dsm Nv	Melamin kristal
CA2292597A1 (en) *	1997-06-02	1998-12-10	Dsm N.V.	Method for preparing melamine
NL1008571C2 (nl) *	1998-03-12	1999-07-28	Dsm Nv	Kristallijn melamine.
PL198432B1 (pl) *	1998-11-13	2008-06-30	Agrolinz Melamin Gmbh	Sposób wytwarzania czystej melaminy
CN1145617C (zh)	1998-12-23	2004-04-14	阿格罗林茨蜜胺有限公司	提纯三聚氰胺的方法
NL1013217C2 (nl) *	1999-10-05	2001-04-06	Dsm Nv	Werkwijze voor de bereiding van melamine.
NL1013456C2 (nl) *	1999-11-02	2001-05-03	Dsm Nv	Kristallijn melamine en de toepassing in aminoformaldehydeharsen.
IT1315255B1 (it) *	1999-11-16	2003-02-03	Eurotecnica Dev And Licensing	Procedimento di purificazione della melammina.
US20030028020A1 (en) *	2001-07-27	2003-02-06	Gupta Ram B.	Process for the synthesis of high purity melamine
PL209035B1 (pl)	2001-11-16	2011-07-29	Ami Agrolinz Melamine Int Gmbh	Sposób wytwarzania melaminy pozbawionej melemu oraz bezprzeponowa chłodnica do stosowania tego sposobu
DE102004018784A1 (de) *	2004-04-14	2005-11-03	Ami-Agrolinz Melamine International Gmbh	Verfahren zur Herstellung von reinem Melamin

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3116294A (en) *		1963-12-31		Process- for preparing high-purity melamine from urea
GB800722A (en) *	1955-03-12	1958-09-03	Montedison Spa	Improvements in the production of melamine from urea
DE1217964B (de) *	1961-07-13	1966-06-02	Allied Chem	Verfahren zur Gewinnung von reinem Melamin
DE1695564A1 (de) *	1966-07-22	1971-05-06	Nissan Chemical Ind Ltd	Verfahren zur Herstellung von Melamin hoher Reinheit
US3637686A (en) *	1969-02-10	1972-01-25	Nissan Chemical Ind Ltd	Process for recovering purified melamine
DE2522233A1 (de) *	1975-05-20	1976-12-02	Bollmann L Kg	Maschine zum stapeln von flaechigen gegenstaenden, insbesondere brettern
IT1270577B (it) *	1993-02-22	1997-05-06	Wladimiro Bizzotto	Reattore melamina ad alta pressione
FI96028C (fi) *	1993-07-01	1996-04-25	Kemira Oy	Menetelmä melamiinin valmistamiseksi

1995
- 1995-02-03 AT AT0018695A patent/AT402296B/de not_active IP Right Cessation
- 1995-12-13 TW TW084113280A patent/TW305838B/zh active
1996
- 1996-01-08 EP EP96900304A patent/EP0807107A1/de not_active Withdrawn
- 1996-01-08 JP JP8523198A patent/JPH11506415A/ja active Pending
- 1996-01-08 BR BR9607332A patent/BR9607332A/pt not_active Application Discontinuation
- 1996-01-08 CN CN96191742A patent/CN1172480A/zh active Pending
- 1996-01-08 KR KR1019970705225A patent/KR19980701828A/ko not_active Withdrawn
- 1996-01-08 PL PL96321596A patent/PL321596A1/xx unknown
- 1996-01-08 NZ NZ298425A patent/NZ298425A/en unknown
- 1996-01-08 WO PCT/EP1996/000045 patent/WO1996023778A1/de not_active Ceased
- 1996-01-30 HR HRA186/95A patent/HRP960044A2/hr not_active Application Discontinuation
- 1996-02-02 IL IL11701696A patent/IL117016A0/xx unknown

Also Published As

Publication number	Publication date
TW305838B (de)	1997-05-21
AT402296B (de)	1997-03-25
BR9607332A (pt)	1997-11-25
JPH11506415A (ja)	1999-06-08
EP0807107A1 (de)	1997-11-19
ATA18695A (de)	1996-08-15
PL321596A1 (en)	1997-12-08
IL117016A0 (en)	1996-06-18
WO1996023778A1 (de)	1996-08-08
KR19980701828A (ko)	1998-06-25
NZ298425A (en)	1999-04-29
CN1172480A (zh)	1998-02-04

Legal Events

Date	Code	Title
1997-12-31	A1OB	Publication of a patent application
1998-06-25	AIPI	Request for the grant of a patent on the basis of a substantive examination of a patent application
2000-06-16	ODBC	Application rejected

Publication	Publication Date	Title
HRP960044A2 (en)	1997-12-31	Process for purifying melamine
US5721363A (en)	1998-02-24	Process for the production of highly pure melamine
AT403579B (de)	1998-03-25	Verfahren zur herstellung von hochreinem melamin
KR100374731B1 (ko)	2003-06-09	멜라민 정제법
CA2177520A1 (en)	1996-12-08	Method for increasing purity in melamine
KR20050046722A (ko)	2005-05-18	멜라민의 제조 방법
US6380385B1 (en)	2002-04-30	Process for the preparation of pure melamine
KR100575020B1 (ko)	2006-05-02	멜라민의 정제방법
MXPA97004638A (en)	1998-11-09	Procedure for the production of high pur melamine