The phrase "a cheap raw material" is correct and usable in written English.
It can be used when discussing the cost-effectiveness or affordability of a basic substance used in manufacturing or production processes.
Example: "The company decided to use a cheap raw material to reduce production costs and increase profit margins."
Alternatives: "an inexpensive base material" or "a low-cost raw substance".
Experimental design methods have been successfully applied to develop and optimize the process of synthesis of butyl esters from rapeseed oil (RSO), the most common oil feedstock for biodiesel production in Europe and used frying oil (UFO), as a cheaper raw material, using biobutanol, and potassium methoxide (KOCH3) as catalyst.
Crude soybean oil was chosen as a cheaper raw material and because it is still the most commonly used oil in the industrial biodiesel production.
The kaolinite clay used is a very cheap raw material of the tile industry and as such needed to be refined and chemically modified prior to the melt intercalation step.
High sugar content in sugar beet molasses enables its use for fermentations while sugar beet pulp represents an interesting cheap raw material source for enzyme production.
This process is a more attractive method utilizing glycerol as a renewable and cheap raw material for the preparation of glycerol carbonate.
In literature many cholesterol sensors based on CNT electrodes have been reported, but synthesis of CNT from a readily available, cheap raw material and its use in cholesterol sensing is quite interesting and it reveals a new direction in research on biosensors.
With the addition of borate, d-tagatose was produced directly from cheap raw material lactose in 16 h in a concentration of 101 g/L, a yield of 20.2%, and a productivity of 6.3 g/L h.
The European Commission said that giving items Protected Designations of Origin (PDO) or Protected Geographical Indication (PGI) status can "create value, increase demand, avoid use of cheap raw material, secure local jobs and so contribute to agricultural and rural economy".
Thus this processing approach offers the possibility of producing high quality TiAl composite sheets with relative cheap raw material.
