The four-bed PSA process could produce H2 with a purity of 96 99.5% and a recovery of 71 85% with N2 as the major impurity.
We also assessed the compatibility of the in vitro bioconversion system with methanol, which is a major impurity in crude glycerol released from biodiesel production processes.
The authigenic ultrafine quartz grains (d90 = 15.8 μm) closely associated with this CSK sample was the major impurity mineral, which cannot be separated from kaolin by screening and size classification process.
Because fatty acid conjugates of plaunotol are known to be present in the leaves of C. stellatopilosus [ 15], it is likely that the major impurity was one of the fatty acid-plaunotol conjugates that were extracted with plaunotol.
An optimisation strategy for the separation of acetylsalicylic acid, its major impurity salicylic acid and ascorbic acid in pharmaceutical formulations by HILIC is presented, with the aid of response surface methodology (RS M and Derringer's desirability function.
The major impurity, residual soda, is present at levels of 0.2 to 0.6 percent.
British metallurgist and inventor who discovered (1875) a method for eliminating phosphorus (a major impurity in some iron ores) in the Bessemer converter.
Metal catalysts are the major impurity inducing biological toxicity through an oxidative stress response.
The measured properties of thorium vary widely depending on the amount of impurities in the sample used: the major impurity is usually thorium dioxide (ThO2).
Oxygen is believed to be a major impurity in diamond, but it has not been spectroscopically identified in diamond yet.
