What is the use of using oxygen in cement industry?
The ingrediants for the cement need to be heated to a very high temperature to make Portland cement. Usually methane with air is the heat source, but oxygen replacing some of the air is sometimes needed to reach the optimum temperature. Possibly a superior cement is produced if it has negligible nitrogen, argon and carbon dioxide, so oxygen is used instead of air which contains nitrogen, argon and carbon dioxide as well as oxygen.
