In fact, ammonia is one of the most produced inorganic substances in the world. More than 80% of them are used in the production of fertilizers, and the rest are also used in a large number of ways. There are some reactions about ammonia in GT5, which can be used as a reference.
As for hydrogen peroxide, Wikipedia should have a description of its production process. You can check the relevant information to know how to produce it. Anthraquinone process is the mainstream production method nowadays.
3 Likes