This ecology document, writen by a neutral party, the IPPC (Integrated Pollution Prevention and Control) gives a lot of insight in the production of all kind of glass (but not cellular glass) and mineral wool.

It allows for example to estimate the extra production cost when cellular glass is made from a special composition instead of directly from waste glass. It gives also insight in the production of mineral wool.

This is simply another contribution of this website to be a  documention system for glass related subjects.