Topic
Raffinate
About: Raffinate is a research topic. Over the lifetime, 3779 publications have been published within this topic receiving 30731 citations.
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07 Aug 1995TL;DR: A method for treating a mixture of gaseous fluids within a solid carbonaceous underground formation is described in this paper, which is used for the recovery of methane from the formation.
Abstract: A method for treating a mixture of gaseous fluids within a solid carbonaceous subterranean formation. In some embodiments, the invention provides for the disposal of a strongly adsorbing gaseous fluid within the formation. In other embodiments, the invention provides a means for fractionating a mixture of gaseous fluids within the formation. In still other embodiments, the invention provides for the recovery of a raffinate from the formation which is enriched in relatively weaker adsorbing gaseous fluids. In still other embodiments, the invention provides for the recovery of methane from the formation.
374 citations
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TL;DR: A novel process for extracting transition metals, recovering lithium and regenerating cathode materials based on facile co-extraction and co-precipitation processes has been developed and a waste battery management model is introduced to guarantee the material supply for spent battery recycling.
238 citations
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TL;DR: In this article, a new leaching-solvent extraction hydrometallurgical process for the recovery of a pure and marketable form of cobalt sulfate solution from waste cathodic active material generated during manufacturing of lithium ion batteries (LIBs).
236 citations
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TL;DR: In this paper, differentially protein extractions were measured with two types of extractants: inverted micelles and two-phase aqueous systems, and the results showed that hollow-fiber extractions are substantially faster than those possible in conventional equipment.
Abstract: Differential protein extractions were measured with two types of extractants: inverted micelles and two-phase aqueous systems. The results show that hollow-fiber extractions are substantially faster than those possible in conventional equipment. The extractions are not compromised by loading or flooding because the flows of extractant and raffinate are almost completely independent. Mass transfer coefficients inferred from the measurements both support and extend design equations for these contactors.
217 citations
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TL;DR: In this article, the effect of oxalic acid and HEDTA complexant on the extraction of actinides (III), lanthanides(III), and important fission products (e.g. Mo, Pd, Sr, Zr, Ru etc.) from a high active raffinate (HAR) has been evaluated.
Abstract: The extractant, N,N,N′,N′‐tetraoctyl diglycolamide (TODGA) has been evaluated for the separation of actinides(III) and lanthanides(III) from a high active raffinate (HAR). The effect of oxalic acid and HEDTA complexant on the extraction of actinides(III), lanthanides(III), and important fission products (e.g. Mo, Pd, Sr, Zr, Ru etc.) from synthetic HAR has been studied with 0.2 mol/L TODGA in TPH. With an extractant mixture of TODGA and tributyl phosphate (TBP) the amount of oxalic acid can be reduced to less than 0.3 mol/L for the effective complexation of zirconium, whereas the distribution ratios of actinides(III) and lanthanides(III) are still high for the separation from HAR. Furthermore the maximum loading of lanthanides (e.g. Nd) can be significantly increased by adding TBP to the extractant. However, the extraction of oxalic acid and nitric acid also increased by the addition of TBP, which can lead to problems during back extraction of the loaded extractant. Extraction studies after radio...
210 citations