Distillation: apparatus – Apparatus – Systems
Patent
1989-09-18
1991-06-11
Manoharan, Virginia
Distillation: apparatus
Apparatus
Systems
159 30, 159 31, 159DIG27, 159DIG28, 159DIG41, 159DIG42, 202200, 2022671, 203 1, 203 4, 203 40, 203 86, 203DIG2, 21050027, 422101, B01D 300
Patent
active
050229672
ABSTRACT:
A microdistillation column for the quantitative steam distillation of cyanide, phenolic compounds, hydrogen fluoride, ammonia, sulfites and other volatile analyte compounds from samples of environmental waters and sludge for their subsequent analysis involves volatilizing the water in the sample tube of the microdistillation column. The pressure which develops due to the water vapor forces all volatile compounds from the water sample, including the water itself, through a hydrophobic membrane and into the collector tube of the microdistillation column. The volatile compounds and the water vapor condense in the cooler collector tube and are quantitatively trapped and retained over the membrane. Relatively small samples may be distilled in the column.
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Lachat Instruments
Manoharan Virginia
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