by-product

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by-product

a product which results from a common production process but which is secondary to the main product being produced from that process. The refining of crude oil to produce petrol, for example, also produces by-products such as tar and creosote. See BY-PRODUCT PRICING, PROCESS PRODUCTION.

by-product

a product that is secondary to the main product emerging from a production process. For example, the refining of crude oil to produce petroleum generates a range of by-products like bitumen, naptha and creosote.
References in periodicals archive ?
Piedmont is now updating the scoping study which will include the updated by-product resources and the June 2019 lithium resource.
As a back-up, the WDD had entered into talks with Vassiliko Cement Works for using the by-products as a fuel.
Oil productivity with cold pressing: The results in Figure 3 showed that the oil weight from Salmon by-products was increased with pressing time increase as well as oil productivity increased.
The researchers found that the average concentrations of chlorination disinfection by-products in drinking water exceeded 0.001 mg/L, the standard maximum contaminant levels stipulated by Standard Organisation of Nigeria.
"As you can see from the pictures this warrant was positive with a large number of cannabis plants and by-products being found.
TEHRAN (FNA)- Managing director of the National Iranian Gas Company (NIGC) said that following removal of sanctions and the increase of refineries' output, the firm is determined to raise its presence in the global market of gas by-products.
Trotters, headquartered in the UAE, is an integrated petrochemical by-products and used lube oil processing, trading and logistics company.
A S S CIENTIST has produced the 'rst commercially viable fuel to be developed from whisky by-products.
The research paper by Al Maimani and Al Kindi investigated ways to reduce the emission of hydrogen and carbon dioxide, which are the main by-products in ammonia production.
CONCERNED authorities will have to determine the types of oil by-products that are banned from being exported in their subsidised prices.
Previous reports showed that tea by-products produced by the beverage industry contained high crude protein (CP, 220 to 350 g/kg dry matter; DM) and tannins (50 to 80 g/kg DM) (Kondo et al., 2004a,b).