By-Product

From Open Risk Manual

Definition

An exclusive by-product is a product technologically linked to the production of other products in the same group, but which is not produced in any other group (for example, molasses linked to the production of sugar).

Exclusive by-products are used as inputs for the manufacture of other products. An ordinary by-product (i.e. a by-product which is not exclusive to a single group) is a product technologically linked to the production of other products, but which is produced in several groups (for example, the hydrogen produced during petroleum refining is technologically linked to that produced in petrochemical manufacture and coal carbonisation and identical to that produced in the group comprising other basic chemical products).

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