CA1220476A - Anhydrous high-pressure melamine synthesis - Google Patents

Anhydrous high-pressure melamine synthesis

Info

Publication number
CA1220476A
CA1220476A CA000470380A CA470380A CA1220476A CA 1220476 A CA1220476 A CA 1220476A CA 000470380 A CA000470380 A CA 000470380A CA 470380 A CA470380 A CA 470380A CA 1220476 A CA1220476 A CA 1220476A
Authority
CA
Canada
Prior art keywords
melamine
liquid
pressure
product
urea
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
Application number
CA000470380A
Other languages
English (en)
French (fr)
Inventor
David E. Best
Roger E. Thomas
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.)
Melamine Chemicals Inc
Original Assignee
Melamine Chemicals Inc
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 Melamine Chemicals Inc filed Critical Melamine Chemicals Inc
Application granted granted Critical
Publication of CA1220476A publication Critical patent/CA1220476A/en
Expired legal-status Critical Current

Links

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
    • C07D251/56—Preparation of melamine
    • C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • B01J3/042—Pressure vessels, e.g. autoclaves in the form of a tube

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA000470380A 1984-01-05 1984-12-18 Anhydrous high-pressure melamine synthesis Expired CA1220476A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56840884A 1984-01-05 1984-01-05
US568,408 1984-01-05

Publications (1)

Publication Number Publication Date
CA1220476A true CA1220476A (en) 1987-04-14

Family

ID=24271166

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000470380A Expired CA1220476A (en) 1984-01-05 1984-12-18 Anhydrous high-pressure melamine synthesis

Country Status (16)

Country Link
JP (2) JPS60208970A (en, 2012)
KR (1) KR920001740B1 (en, 2012)
AT (1) AT393124B (en, 2012)
AU (1) AU568469B2 (en, 2012)
BR (1) BR8500032A (en, 2012)
CA (1) CA1220476A (en, 2012)
EG (1) EG16900A (en, 2012)
ES (1) ES8606303A1 (en, 2012)
FR (1) FR2557876B1 (en, 2012)
GB (1) GB2152505B (en, 2012)
IE (1) IE57911B1 (en, 2012)
IT (1) IT1188084B (en, 2012)
MX (1) MX164901B (en, 2012)
NL (1) NL193832C (en, 2012)
NO (1) NO176795C (en, 2012)
NZ (1) NZ210678A (en, 2012)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5514796A (en) * 1995-06-07 1996-05-07 Melamine Chemicals, Inc. Melamine of improved purity produced by high-pressure, non-catalytic process
NL1002669C2 (nl) * 1996-03-21 1997-09-23 Dsm Nv Werkwijze voor de bereiding van melamine.
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.
NL1004814C2 (nl) * 1996-12-18 1998-06-19 Dsm Nv Werkwijze voor het bereiden van melamine.
AU5346298A (en) * 1996-12-16 1998-07-15 Dsm N.V. Method for the preparation of melamine
NL1008571C2 (nl) * 1998-03-12 1999-07-28 Dsm Nv Kristallijn melamine.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1670286A1 (de) * 1967-11-11 1971-01-28 Basf Ag Verfahren zur Aufarbeitung der bei der Melaminsynthese anfallenden Abgase
GB1218522A (en) * 1969-01-24 1971-01-06 Nissan Chemical Ind Ltd A process for recovering the purified melamine
NL7903473A (nl) * 1979-05-03 1980-11-05 Stamicarbon Werkwijze voor het bereiden van melamine.
NL8201479A (nl) * 1982-04-07 1983-11-01 Stamicarbon Werkwijze voor het bereiden van melamine.

Also Published As

Publication number Publication date
FR2557876A1 (fr) 1985-07-12
KR850005425A (ko) 1985-08-26
AT393124B (de) 1991-08-26
NO176795C (no) 1995-05-31
IT1188084B (it) 1987-12-30
NZ210678A (en) 1987-03-06
GB8500197D0 (en) 1985-02-13
NO845248L (no) 1985-07-08
IT8583302A0 (it) 1985-01-04
NO176795B (no) 1995-02-20
BR8500032A (pt) 1985-08-13
JPS60208970A (ja) 1985-10-21
JPH0557984B2 (en, 2012) 1993-08-25
ATA2185A (de) 1991-01-15
FR2557876B1 (fr) 1991-04-19
MX164901B (es) 1992-09-30
ES539126A0 (es) 1986-04-16
GB2152505B (en) 1987-07-29
IE843247L (en) 1985-07-05
IE57911B1 (en) 1993-05-19
NL193832C (nl) 2000-12-04
ES8606303A1 (es) 1986-04-16
NL8403843A (nl) 1985-08-01
NL193832B (nl) 2000-08-01
AU568469B2 (en) 1987-12-24
AU3737685A (en) 1985-07-18
EG16900A (en) 1990-10-30
KR920001740B1 (ko) 1992-02-24
GB2152505A (en) 1985-08-07
JPH0925271A (ja) 1997-01-28
JP2757163B2 (ja) 1998-05-25

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