When installed with the bzsilicon mod, Moshine's silicon recipe will be overwritten by the bzsilicon mod's silicon recipe.
You can no longer craft silicon from sand,
but instead, you can craft silicon using silica, as per the bzsilicon mod's recipe.
While you can still craft silicon,
Moshine's silicon-from-sand technology will only exist as a research tool, and the recipe itself will disappear.
Is it possible to keep Moshine's recipe from disappearing?
Then, there will be two ways to craft silicon!
This will expand your crafting options.

https://mods.factorio.com/mod/bzsilicon