单词	butylene
释义	butylene /ˈbyo͞odlˌēn / noun Any of several isomeric hydrocarbons obtained from petroleum and used to make polymers and in organic synthesis. Chemical formula: C4H8. Did your run across any work on the concentration of butylenes by absorption prior to alkylation?... Therefore if all the caustic soluble oxygen re-entered the butylenes in the extractor, the butylenes would contain far less than the 20 wppm. maximum specification. These alkoxynitriles are known from the above patents to dissolvebutadiene - 1,3 in preference to the less unsaturated butylenes and butanes.
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