molecular distillation

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mo·lec·u·lar dis·til·la·tion

distillation in high vacuum, intended to make possible use of low temperatures to minimize damage to thermally labile molecules that would be decomposed by boiling at higher temperatures.
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References in periodicals archive ?
Luo, "Separation and characterization of pyrolytic lignins from the heavy fraction of bio-oil by molecular distillation," Separation and Purification Technology, vol.
Four controllers are used to control the wiped film molecular distillation system, respectively, and the 50 time steps of the simulation results are shown in Figures 9-14.
For those problems which the BP-DHP algorithm has, such as poor prediction accuracy, slow convergence speed, and poor stability, the ELM-DHP algorithm was studied in this paper to solve the data modeling and optimal control problem of the wiped film molecular distillation system with complex features such as multivariability, strong coupling, nonlinearity, and large time delay as an example.
Tao, Study on Purifying Three Natural Products by Molecular Distillation and Theoretical Model, Tianjin University, 2004.
Cvengros, "Balance equations for molecular distillation," Separation Science and Technology, vol.
Ma, "Molecular distillation technology and its application," Chemical Technology and Development, vol.
Molecular Distillation. This high vacuum process furnishes the lowest temperature believed possible.
However, to ensure purity and eliminate the risk of mercury contamination, PCB's and other harmful toxins, the salmon oil is minimally processed using molecular distillation. The other ingredient in Astavita Virgin Salmon Oil is AstaREAL natural astaxanthin, which is harvested from the microalgae know as Haematococcus pluvialis, which is grown in a state-of-the-art and patented BioDome system on the island of Maui.
Croda's state-of-the-art processing, including GMP molecular distillation and proprietary purification technology, reduce the levels of trace impurities still further to the limits of analytical detection.
These companies use highly effective purification processes like molecular distillation and steam deodorization to separate pollutants from the beneficial omega 3 fatty acids.
After this additional purification step is complete, the EPAX oil goes into a traditional concentration process including molecular distillation.
Processes that are acceptable for removing/isolation are: fractional distillations, rectifications, and molecular distillations of natural fragrance materials, also as defined by the Guild.
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