专利名称：Extraction of methanol from methyl tertiary
butyl ether
发明人：Cassata, John Robert,Parker, Stuart
John,Hwan, Rei-Yu Judy,Conkwright,Catherine June
申请号：EP94308161.2申请日：19941104公开号：EP0652199B1公开日：19980930
摘要：An impure methyl tertiary butyl ether product contaminated with isobutylene,methanol and water is purified by continuous counter-current contact with water andisobutylene in a counter-current contact extraction tower to provide an overheadraffinate comprising isobutylene, methyl tertiary butyl ether and water and an extractcomprising methanol, water and a minor amount of methyl tertiary butyl ether, theoverhead raffinate being separated in a methyl tertiary butyl ether purification
distillation zone into a lighter distillation fraction comprising isobutylene and water and aheavier distillation fraction consisting essentially of methyl tertiary butyl ether, thelighter distillation fraction being decanted to remove water and to provide a distillateisobutylene fraction that is charged to a surge drum from which isobutylene is returnedto the contact tower.
申请人：HUNTSMAN SPEC CHEM CORP
地址：US
国籍：US
代理机构：Goddar, Heinz J., Dr.
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