Yes, BUT ... it requires a huge leap of faith and does NOT necessarily allow you to separate the two halves later. It doe NOT necessarily make a separable jacket-type zip.
You have to start with the two parts of the zip fully separated. You feed the first slider on with the flare facing forwards, and try to get enough through it that you can start to run it down the length.
Then you find you are one tooth out in the alignment and start all over again.
Eventually, when you have the first one in place, you thread the second one on going backwards. As it goes on it opens the zip up again.
This can only be done if the top end of the zip has not stoppers on it. Yes, I have done it that way, although it was easier to load one slider on from each end.
Now, this may or may not let you separate the two halves afterwards. That depends on the end-bit on the zip. So ...
If the above method does allow full separation, then a far easier way is to slide the two sliders onto one zip part, run them down to the bottom end, and then to poke the other part in, just as you would with a separable jacket zip.
However, this requires that you have the right sort of ending on the zip, which is extremely unlikely unless it was a separable zip in the first pace. In which case you probably would not be asking.