Sentence examples for cycle of extraction from inspiring English sources
The enthalpy change of the uranium extraction process was determined and the extracted uranium is further subjected to a second cycle of extraction [0.3 M D2EHPA + 0.075 M TOPO], scrubbing impurities (5 M sulfuric acid), and finally stripping with 1 M (NH4 2CO3 solution.
The official explanation for halting the project are EU regulations, which prohibit one company controlling the full cycle of extraction, transportation and sale of energy resources.
High-purity uranium is recovered from the strip solution by a second cycle of extraction with 0.3 M D2EHPA + 0.075 M TOPO mixture.
The optimized procedure employed 3 g of ground leaves, 10 min of extraction and one cycle of extraction at 85 °C.
Experimental studies done previously in our group showed a great potential of hollow fiber modules as extraction apparatus, especially in environmental engineering, where the main advantage of the technique, i.e. the possibility to concentrate metallic species in a cycle of extraction and stripping processes, is exploited.
The precipitate was used for a second cycle of extraction.
After several cycles of extraction the extract was filtered and recovered under reduced pressure.
In order to recover uranium from the strip solution obtained in the first cycle, the strip solution undergoes a second cycle of extraction-stripping with an additional scrubbing step by 5 M sulfuric acid incorporated to obtain a uranium cake of high purity.
Two cycles of extraction of 10 min were applied.
The PHA standard was prepared by acetone extraction and methanol precipitation followed by three cycles of extraction and precipitation, as described by Jiang et al. (2006) and the monomeric composition characterized by GC and proton nuclear magnetic resonance at room temperature in a Bruker Avance 200 spectrometer using deuterated-chloroform containing 20 mg mL-1 PHA.
The upper aqueous phase containing the DNA was then transferred to a new tube and another two cycles of extraction were performed for a total of three detergent extractions.
