Method for the manufacture and recovery of methyl tertiary butyl ether
Patent 5243091 Issued on September 7, 1993. Estimated Expiration Date: 
November 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsAssigneeApplicationNo. 978570 filed on 11/19/1992US Classes:568/697, Preparing by reacting an olefin and an organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal)568/698, Preparing by dehydration of an organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal)568/699, Purification or recovery568/922Heavy metal or aluminum containing compound utilizedExaminersPrimary: Mars, Howard T.Attorney, Agent or FirmInternational ClassC07C 041/09AbstractA method for the preparation of methyl tertiary butyl ether is provided wherein a mixture of methanol and substantially peroxides-free tertiary butyl alcohol are catalytically reacted to form a reaction product that is separated into a first lighter distillation fraction comprising isobutylene, methanol and methyl tertiary butyl ether and a second heavier distillation fraction comprising methanol, tertiary butyl alcohol and water, wherein the first distillation fraction and a first recycle isobutylene fraction are reacted to form an isobutylene conversion product that is charged, together with recycle isobutylene to a methanol extraction zone and countercurrently contacted with water to provide an overhead extract comprising aqueous isobutylene, and wherein the isobutylene is recovered and recycled.Field of SearchPreparing by reacting an olefin and an organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal)Preparing by dehydration of an organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal) Purification or recovery Heavy metal or aluminum containing compound utilized |
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