发明授权
US4649225A Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol monoalkyl ethers, monoethylene glycol and ethanol 失效
聚亚烷基二醇的氢解产生单乙二醇单烷基醚,单乙二醇和乙醇

Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol
monoalkyl ethers, monoethylene glycol and ethanol
摘要:
This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating the polyalkylene glycol with molecular hydrogen in the presence of a hydrogenation catalyst containing iridium to produce at least one of monoethylene glycol monoethyl ether, monoethylene glycol monomethyl ether, monoethylene glycol and ethanol. Monoethylene glycol monoethyl ether can be produced in significant amounts by employing the process of this invention.
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