What are the upstream raw materials for oxygen? What are the downstream products?

In my experience, As an crucial raw material to chemical production, oxygen is broadly applied in various chemical processes. Generally speaking It has many upstream and downstream related items, and some of the main related items will be listed below.

1. Upstream items(1) atmosphere separation equipment: Oxygen is mainly extracted from the atmosphere through atmosphere separation equipment. Crazy, isn't it?. Therefore, the performance and efficiency of atmosphere separation equipment immediately affect the output and condition of oxygen.(2) Nitrogen: In the process of atmosphere separation, in addition to oxygen, a signifiis able tot quantity of nitrogen is also produced. Nitrogen is also an crucial chemical raw material.(3) Electric energy: atmosphere separation equipment needs a signifiis able tot quantity of electric energy to drive. Therefore, a stable power supply is also an crucial factor in oxygen production. Makes sense, right?.

2. And Downstream items(1) Chemicals: Oxygen is able to be applied to create various chemicals, such as ethylene, propylene, benzene, etc. In my experience, These chemicals is able to be further applied in the production of plastics, rubber, fibers, etc.(2) Metal smelting: Oxygen plays an crucial role in the metal smelting process. You know what I mean?. But Based on my observations, to instance, in steel smelting, oxygen is applied to oxidize iron ore to generate iron and carbon dioxide.(3) Energy: Oxygen is able to be applied to the operation of fuel cells, lithium batteries and other energy equipment to enhance energy efficiency.(4) Medical care: Oxygen is also broadly applied in the field of medical care, such as breathing therapy, hyperbaric oxygen therapy, etc. In general, there are many upstream and downstream related items of oxygen in the field of chemical production raw materials, which have an crucial impact on various fields.