PROCESS FOR PRODUCING TRIOXANE

• Main Authors: MINORU AKIYAMA, OSAMU KASHIHARA
• Format: Patent
• Language: English
• Published: 31.03.2005
• Subjects: APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

TO PROVIDE A PRACTICAL AND ECONOMICAL PROCESS FOR PRODUCING TRIOXANE FROM AN AQUEOUS FORMALDEHYDE SOLUTION IN THE PRESENCE OF A SOLID ACID CATALYST, WHICH PERMITS A STABLE OPERATION FOR A LONG PERIOD OF TIME. A PROCESS FOR PRODUCING TRIOXANE FROM AN AQUEOUS FORMALDEHYDE SOLUTION BY USING A PRODUCTION APPARATUS COMPRISING TWO FUNCTIONAL, I.E. THE FIRST FUNCTIONAL STEP OF CONDUCTING MAINLY THE REMOVAL OF METALLIC IMPURITIES FROM THE AQUEOUS FORMALDEHYDE SOLUTION WITH A SUBSTANCE HAVING AN ION-EXCHANGING FUNCTION AND THE SECOND FUNCTIONAL STEP OF CONDUCTING MAINLY THE SYNTHESIS OF TRIOXANE FROM THE AQUEOUS FORMALDEHYDE SOLUTION, FROM WHICH METALLIC IMPURITIES HAVE BEEN REMOVED, WITH A SOLID ACID CATALYST.