Complex sentence: AES are manufactured by alcohol ethoxylate (C10-C18) sulfonation with either sulfur trioxide or chlorosulfonic acid then neutralized with a base to produce sodium or ammonium salt.
Split into simpler sentences: AES are manufactured by alcohol ethoxylate (C10-C18) sulfination with either sulfur trioxide or chlorosulfonic acid. They are neutralized with a base to produce sodium or ammonium salt.