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US 10,023,511 B2Granted
Process for the production of ethylene, vinylidene, and hydrogen chloride from ethane
AssigneeDow Global Technologies LLC
InventorsBarry B. Fish, Matthew T. Pretz, Max M. Tirtowidjojo
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Abstract
A process is provided for the chlorination of ethane using chlorine as the chlorinating agent to produce vinylidene (1,1-dichloroethylene), hydrogen chloride and ethylene.
Claims13
A continuous process for producing vinylidene, hydrogen chloride and ethylene comprising:
- a) reacting a feed comprising chlorine with ethane in a reaction zone to produce a crude product wherein the crude product comprises
- i. a partial recycle fraction comprising ethylene and hydrogen chloride,
- ii. an extinction recycle fraction comprising ethyl chloride and vinyl chloride,
- iii. and product components vinylidene;
- b) fractionally separating from the crude product the partial recycle fraction;
- and
- c) fractionally separating the extinction recycle fraction from the remaining crude product wherein the molar ratio of chlorine to ethane in the feed is from 1.1 to 1.9 and further wherein the crude product comprises greater than 60% hydrogen chloride.
4 more elements
Dependencies are inferred from the claim text.