Etherification process improvement

Details Etherification process improvement Etherification process improvement

1987-12-28

1989-04-11

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568144, C07C 4106, C07C 4134

Patent

active

048208779

ABSTRACT:
An improved etherification process is described for the manufacture of methyl tertiary alkyl ethers such as methyl tertiary butyl ether and methyl tertiary amyl ether. In one embodiment etherification is conducted in the presence of a large excess of methanol wherein unreacted methanol is separated in a fractionator utilizing a light hydrocarbon stripping gas to separate the methanol-hydrocarbon azeotrope. In another embodiment unreacted methanol from the etherification reaction is removed by water washing. The aqueous mixture containing unreacted methanol is separated in a stripping zone employing fuel gas as a stripping media.

REFERENCES:
patent: 4302298 (1981-11-01), Mikitenko et al.
patent: 4440963 (1984-04-01), Childs
patent: 4544776 (1985-10-01), Osterburg et al.
patent: 4603225 (1986-07-01), Colainne et al.
patent: 4665237 (1987-05-01), Arakawa et al.

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