Process to produce 1,2-difluoroethylene (HFO-1132) from 1,2 dichloro-1,2-difluoroethane (HCFC-132)
TW202631553APending Publication Date: 2026-08-01THE CHEMOURS CO FC LLC
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Patent Information
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- THE CHEMOURS CO FC LLC
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-01
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Figure TWG2TA001070498_001 
Figure TWG2TA001070498_002
Abstract
A process includes contacting 1,2-dichloro-1,2-difluoroethane (HCFC-132) with an activated zinc powder in the presence of a catalyst and a solvent and producing a product mixture comprising E-1,2-difluoroethylene (HFO-E-1132) and Z-1,2-difluoroethylene (HFO-Z-1132). In some embodiments, the catalyst includes tetrabutylammonium bromide. In some embodiments, the catalyst includes zinc chloride. In some embodiments, the catalyst includes zinc acetate.
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