The existing refineries were accordingly altered so as to adapt them for the refining of petroleum; but in the manufacture of burning oil from petroleum the small stills which had been in use in the distillation of shale-oil were at first employed. [Please select]
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Copper is one of the best conductors of heat, as well as electricity, being used for kettles, boilers, stills and wherever this quality is desirable. [Please select]
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It was that hour when everything stills itself, and they really had had a busy and exciting afternoon. [Please select]
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On the contrary, it was received by the grimy watchers at the stills with considerable hilarity. [Please select]
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# -- The Caffey and other "Patent" Stills -- Intermittent versus Continuous Rectification -- Continuous Distillation -- Rectification of Spent Wash. [Please select]
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The stills are usually built of copper, which are heated by both direct fire and superheated steam. [Please select]
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"I don't think there are any illicit stills in this district," Ned replied. [Please select]
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