McCabe-Thiele Construction and Reflux

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How does one depict R= 1 × 10-6 , and subsequently a y-intercept of y = 6 × 10-6 on a y-x diagram? I'm new to the concept and very confused.

From my understanding, this means that the reflux is essentially 0. It's also assumed that the distillate is purely vapour, so XD = 0 as there is no liquid fraction and XB = 0 because we're also assuming that all of the more volatile liquid is gas. The only other non-zero value is XF = 0.6.
How would such a system look on a McCabe-Thiele graphical analysis? With my working I've ended up with 3 stages.
 
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Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
 

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