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Polynionic celluloses were preparated by alkalify and etherify of refining cotton.The degree of replacement of the polynionic cellulosesis was high.The radicals of replacement were distributed evenly.

采用精制棉经过碱化、醚化得到高基均匀分布的聚离子纤维素产品。

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This paper introduces the light gaso line etherify technology,brings fo rward the project of building the light gasoline etherify device on th e catalyst cracking cell in the refin ery plant.

介绍了醚化技术,提出了在炼厂催化裂化单元建设醚化装置的方案。

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