Patent ID: 9518001
Filing Date: 2016-12-13
CPC Classification: C07C

Claim Text:
1. A process comprising: contacting in a fluid state one or more 1,1-dicarbonyl substituted-1,1-bis (hydroxymethyl)-methanes and greater than 200 ppm to about 1000 ppm of one or more strong acids based on the weight of the one or more 1,1-dicarbonyl substituted-1,1-bis (hydroxymethyl)-methanes with a zeolite catalyst at a temperature of about 180° C. to about 220° C. for a sufficient time to convert about 96 percent or greater of the one or more 1,1-dicarbonyl substituted-1,1-bis (hydroxymethyl)-methanes to one or more 1,1-dicarbonyl substituted-1-ethylenes.