IT1188084B - Sintesi anidra in alta pressione della melammina - Google Patents

Sintesi anidra in alta pressione della melammina

Info

Publication number
IT1188084B
IT1188084B IT83302/85A IT8330285A IT1188084B IT 1188084 B IT1188084 B IT 1188084B IT 83302/85 A IT83302/85 A IT 83302/85A IT 8330285 A IT8330285 A IT 8330285A IT 1188084 B IT1188084 B IT 1188084B
Authority
IT
Italy
Prior art keywords
anhydrain
melamine
synthesis
high pressure
pressure
Prior art date
Application number
IT83302/85A
Other languages
English (en)
Other versions
IT8583302A0 (it
Inventor
Roger Edward Thomas
David Edward Best
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
Publication of IT8583302A0 publication Critical patent/IT8583302A0/it
Application granted granted Critical
Publication of IT1188084B publication Critical patent/IT1188084B/it

Links

Classifications

    • 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
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT83302/85A 1984-01-05 1985-01-04 Sintesi anidra in alta pressione della melammina IT1188084B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56840884A 1984-01-05 1984-01-05

Publications (2)

Publication Number Publication Date
IT8583302A0 IT8583302A0 (it) 1985-01-04
IT1188084B true IT1188084B (it) 1987-12-30

Family

ID=24271166

Family Applications (1)

Application Number Title Priority Date Filing Date
IT83302/85A IT1188084B (it) 1984-01-05 1985-01-04 Sintesi anidra in alta pressione della melammina

Country Status (16)

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

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.
WO1998027071A1 (en) * 1996-12-16 1998-06-25 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
MX164901B (es) 1992-09-30
KR920001740B1 (ko) 1992-02-24
GB2152505B (en) 1987-07-29
NL193832B (nl) 2000-08-01
AT393124B (de) 1991-08-26
IE843247L (en) 1985-07-05
JPH0557984B2 (it) 1993-08-25
ATA2185A (de) 1991-01-15
CA1220476A (en) 1987-04-14
FR2557876B1 (fr) 1991-04-19
EG16900A (en) 1990-10-30
JP2757163B2 (ja) 1998-05-25
KR850005425A (ko) 1985-08-26
JPH0925271A (ja) 1997-01-28
IT8583302A0 (it) 1985-01-04
AU568469B2 (en) 1987-12-24
JPS60208970A (ja) 1985-10-21
IE57911B1 (en) 1993-05-19
NL8403843A (nl) 1985-08-01
GB8500197D0 (en) 1985-02-13
ES8606303A1 (es) 1986-04-16
NO176795C (no) 1995-05-31
FR2557876A1 (fr) 1985-07-12
NZ210678A (en) 1987-03-06
ES539126A0 (es) 1986-04-16
BR8500032A (pt) 1985-08-13
AU3737685A (en) 1985-07-18
GB2152505A (en) 1985-08-07
NO845248L (no) 1985-07-08
NL193832C (nl) 2000-12-04
NO176795B (no) 1995-02-20

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981231