Can I stop queue and still get half my project renderad?

If you're using Smart Rendering in Premiere Pro (for example, ProRes source clips in a ProRes Sequence), you should get a partial file but it is unlikely that it will have a clean out.  Even after finding a clean match frame and assuming the file format is an intraframe CODEC that's good for editing, there's no quick and easy way to combine a rendered first part with a rendered second part (we used to be able to easily copy and paste two or more segements at like settings into an untitled movie file and save using QuickTime Player Pro classic).  If the file format is interframe CODEC for delivery, you'd want to start over from the source to avoid an additional hit of compression generation loss.

You can, of course, pause the encoding process and start it again later.  

While this is about a Sequence from Premiere Pro, if you ever use the After Effects Render Queue at High Quality or Lossless then those renders can be stopped and After Effects will automatically queue up the remainder to be rendered later.  The resulting segments can be stitched to one clip in Media Encoder without an addiional compression pass as long as the preset used matches the High Quality (ProRes 422) or Lossless (Animation) setting used in the Render Queue.

Hey there, unfortunately, this isn't how video encoding works, and the majority of formats out there do not support partial files. If you stop a job midway through encoding, you'll get a useless set of files. The unmerged audio might be playable, but you won't have a .mp4 that contains half of your content.