GB815682A - Preparation of hexachloromelamine - Google Patents
Preparation of hexachloromelamineInfo
- Publication number
- GB815682A GB815682A GB12050/57A GB1205057A GB815682A GB 815682 A GB815682 A GB 815682A GB 12050/57 A GB12050/57 A GB 12050/57A GB 1205057 A GB1205057 A GB 1205057A GB 815682 A GB815682 A GB 815682A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- chlorine
- hexachloromelamine
- product
- ccl4
- 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
Links
- VCBRTBDPBXCBOR-UHFFFAOYSA-N 2-N,2-N,4-N,4-N,6-N,6-N-hexachloro-1,3,5-triazine-2,4,6-triamine Chemical compound ClN(Cl)C1=NC(N(Cl)Cl)=NC(N(Cl)Cl)=N1 VCBRTBDPBXCBOR-UHFFFAOYSA-N 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- VZGDMQKNWNREIO-UHFFFAOYSA-N Carbon tetrachloride Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 abstract 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 4
- 239000000460 chlorine Substances 0.000 abstract 3
- 229910052801 chlorine Inorganic materials 0.000 abstract 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N Melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 abstract 2
- 229920000877 Melamine resin Polymers 0.000 abstract 2
- 239000001187 sodium carbonate Substances 0.000 abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- -1 alkali metal hypochlorite Chemical class 0.000 abstract 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M buffer Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 1
- XGZRAKBCYZIBKP-UHFFFAOYSA-L disodium;dihydroxide Chemical compound [OH-].[OH-].[Na+].[Na+] XGZRAKBCYZIBKP-UHFFFAOYSA-L 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Inorganic materials Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000012454 non-polar solvent Substances 0.000 abstract 1
- 230000000717 retained Effects 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08G12/30—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with substituted triazines
- C08G12/32—Melamines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Hexachloromelamine is produced by suspending melamine in water and treating the suspension with either chlorine and an alkaline substance, or an alkali metal hypochlorite and a mineral acid, while maintaining the pH between 3 and 8, preferably between 4 and 7, separating the hexachloromelamine, liberating a major part of the water retained in the product by treatment with 10-25 per cent by weight of a water-immiscible non-polar solvent, e.g. CCl4, removing the liberated water, and evaporating the solvent and residual water, e.g. by air warmed to 50-100 DEG C. The pH control can be achieved by using buffers, or by adding the alkaline substance, such as sodium carbonate or sodium hydroxide, at a rate equivalent to the rate of absorption of chlorine. In an example, a suspension of melamine is treated with sodium carbonate solution and chlorine simultaneously to maintain a pH of 5-7, water removed from the product by treatment with CCl4, and the product dried in warm air.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB815682A true GB815682A (en) | 1959-07-01 |
Family
ID=1714719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12050/57A Expired GB815682A (en) | 1957-04-12 | Preparation of hexachloromelamine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB815682A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364214A (en) * | 1964-12-22 | 1968-01-16 | Basf Ag | Production of hexachloromelamine |
| EP0239121A1 (en) * | 1986-03-28 | 1987-09-30 | MONTEDIPE S.r.l. | Process for preparing trichloromelamine |
-
1957
- 1957-04-12 GB GB12050/57A patent/GB815682A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3364214A (en) * | 1964-12-22 | 1968-01-16 | Basf Ag | Production of hexachloromelamine |
| EP0239121A1 (en) * | 1986-03-28 | 1987-09-30 | MONTEDIPE S.r.l. | Process for preparing trichloromelamine |
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