Phthalic Anhydride
Phthalic anhydride is a cyclic aromatic anhydride produced mainly by catalytic vapor-phase oxidation of ortho-xylene. Naphthalene oxidation is an older
October 15, 2026
Phthalic anhydride is a cyclic aromatic anhydride produced mainly by catalytic vapor-phase oxidation of ortho-xylene. Naphthalene oxidation is an older
Melamine is a nitrogen-rich crystalline intermediate produced by converting urea at high temperature, using either a high-pressure liquid-phase process or
Maleic anhydride is a reactive cyclic anhydride produced by catalytic vapor-phase oxidation of a hydrocarbon feed. Two routes exist. The
Ethylene is the largest-volume olefin and the foundational building block of the petrochemical industry. It is produced mainly by steam
Ethylene oxide is a highly reactive, flammable and toxic intermediate produced by direct catalytic oxidation of ethylene with oxygen over
Ethylene glycol is a high-volume diol produced mainly by hydrating ethylene oxide, which is made by direct oxidation of ethylene.
Epichlorohydrin is a reactive chlorinated intermediate used mainly to make epoxy resins, along with synthetic glycerin, water treatment chemicals, wet-strength
Caustic soda is a foundational inorganic chemical produced mainly through electrolysis of brine in chlor-alkali plants, which simultaneously yield chlorine
Caprolactam is the primary monomer of the nylon chain and links benzene and cyclohexane to fibers, engineering plastics, films and
Butanediol is a versatile chemical intermediate that links acetylene, natural gas, coal and butane-based chemistry to engineering plastics, elastic fibers,
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