Thenard isolated this compound from distillation products of beef tallow in 1802.
2.
The cracker, which is the heart of the refinery unit, upgrades primary distillation products to obtain higher-value products, such as gasoline.
3.
We are talking about full vertical integration when polyester is produced at one site starting from crude oil or distillation products in the chain oil ?! benzene ?
4.
Because the turpentine and pine oil from destructive distillation " become somewhat contaminated with other distillation products ", After the solvent has been recovered, " the terpene oils are separated by fractional distillation and recovered mainly as refined turpentine, dipentene, and pine oil.
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