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Process for the preparation of pure alkyl-tert.-alkyl ethers and hydrocarbonaceous raffinates freed for the major part from isoolefines and alkanols
Process for the preparation of pure alkyl-tert.-alkyl ethers and hydrocarbonaceous raffinates freed for the major part from isoolefines and alkanols
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机译:制备主要从异烯烃和链烷醇中分离出来的纯烷基叔烷基醚和烃质提余液的方法
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摘要
A process for the preparation of pure alkyl tertiary alkyl ethers and hydrocarbon raffinates which are substantially free from tertiary olefins and alkanols. An alkanol and a hydrocarbon mixture containing at least one tertiary olefin are contacted with the alkanol being present in a stoichiometric excess. The reaction product is removed from the reaction zone and excess alkanol in the reaction product or a partial stream thereof is absorbed on a synthetic ion exchanger containing groups which exchange cations or anions or mixtures of such ion exchangers. After absorption of at least a portion of the alkanol on the synthetic ion exchanger, the alkanol is desorbed by contacting the same with a hydrocarbon mixture containing at least one tertiary olefin.
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