Results 241 to 250 of about 151,801 (299)
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In Situ Solvent Recovery by Organic Solvent Nanofiltration
ACS Sustainable Chemistry and Engineering, 2014Reducing solvent consumption in the chemical industries is increasingly becoming a topic of interest. The field of organic solvent nanofiltration (OSN) has markedly evolved in the past decade, and effective membranes are now available that can withstand aggressive solvents while completely rejecting small solutes at the lower end of the nanofiltration ...
Jiyong Kim +2 more
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Co-solvent selection and recovery
Advances in Environmental Research, 2004 Abstract The selection and recovery of two or more solvents (i.e. co-solvents) are studied because of their importance in environmentally responsible processing. A particularly challenging problem arises when the contaminants (or solutes) are comprised of a mixture of volatile and nonvolatile compounds. The nonvolatile components present difficulties
Lucia, Angelo, Finger, Erik J.
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Analysis of an accident at a solvent recovery plant
Journal of Hazardous Materials, 1999 An accident in a plant for solvent recovery from solvent-contaminated wastes was examined. An experimental investigation of the accident was carried out using calorimetric and thermogravimetric techniques. The immediate cause of the accident was an unforeseen exothermic decomposition reaction.
COZZANI V. +3 more
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AIChE Journal, 1999
AbstractOne of the environmental challenges faced by the pharmaceutical and specialty chemical industries is the widespread use of organic solvents. With a solvent‐based chemistry, the solvent necessarily has to be separated from the product. Chemical species in waste‐solvent streams typically form multicomponent azeotropic mixtures, and this often ...
Berit S. Ahmad, Paul I. Barton
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AbstractOne of the environmental challenges faced by the pharmaceutical and specialty chemical industries is the widespread use of organic solvents. With a solvent‐based chemistry, the solvent necessarily has to be separated from the product. Chemical species in waste‐solvent streams typically form multicomponent azeotropic mixtures, and this often ...
Berit S. Ahmad, Paul I. Barton
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Journal of the American Oil Chemists' Society, 1983
AbstractA brief overview is presented of the economic significance of solvent recovery in the oilseed extraction industry in view of the steep price advance of hexane since 1974. The present solvent recovery practices in oilseed plants are outlined with addition of operating techniques since 1976.
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AbstractA brief overview is presented of the economic significance of solvent recovery in the oilseed extraction industry in view of the steep price advance of hexane since 1974. The present solvent recovery practices in oilseed plants are outlined with addition of operating techniques since 1976.
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Distillation and solvent recovery
Journal of the American Oil Chemists' Society, 1974AbstractThe historical development of various miscella distillation systems used in solvent extraction of oil‐seeds is reviewed, and their economics are compared. In addition, the design of solvent recovery systems and their economic justification are reviewed.
Edward D. Milligan, David C. Tandy
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Recovery of nitrotoluenes in wastewater by solvent extraction
Journal of Hazardous Materials, 2007Toluene extraction was utilized to recover 2,4-dinitrotoluene (DNT), 2,6-DNT, and 2,4,6-trinitrotoluene (TNT) from wastewater of toluene nitration process. The batch-wise experiments were performed to elucidate the influence of various operating variables on the extracting behavior, including extracting temperature, volume ratios of solvent versus ...
Wen-Shing, Chen +2 more
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Journal of Membrane Science, 1988
Abstract In industrial processes such as drying, glueing, and coating, huge air streams become loaded with solvents. For economical and environmental reasons these solvents should be reused. Composite membranes produced in hollow fiber form using polydimethylsiloxane as the selective barrier are tested to recover these solvents. A hollow fiber module
K. Kimmerle +3 more
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Abstract In industrial processes such as drying, glueing, and coating, huge air streams become loaded with solvents. For economical and environmental reasons these solvents should be reused. Composite membranes produced in hollow fiber form using polydimethylsiloxane as the selective barrier are tested to recover these solvents. A hollow fiber module
K. Kimmerle +3 more
openaire +1 more source