Tacoma heptane insolubles

However, the heptane insolubility of 850° F+ SRC residue from Tacoma (see Table I) showed little change when subjected to the same treatment as the filtrate from Tacoma. The 850°F+ SRC residue received from Tacoma had 81% heptane insolubles while the 850°F+ residue from the distillation of the reconstituted SRC filtrate, which is described below, had 87% heptane insolubles. This was a 6% increase in heptane insolubles in Tacoma residual SRC after thermal treatment compared with a 40% increase for the Tacoma filtrate heptane insolubles after the same treatment. 

Apparently the increase in heptane insolubles resulted from thermal repolymerization during distillation. The filtrate readily underwent this reaction but Tacoma 850° F+ SRC residue was unreactive because it already had been exposed to high temperature when isolated by distilla-... 

Table III. Heptane and Benzene Insolubles of Distilled and Undistilled Tacoma Samples...

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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