Analytical Distillation in Miniature Columns

Nerheim, A. G.; Dinerstein, R. A.

doi:10.1021/ac60114a030

Cited by 14 publications

(4 citation statements)

References 22 publications

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“…Simulated distillation was compared with TBP distillation on four types of petroleum distillates. Distillations were made on 100-theoretical-plate spinning band columns (6,9) with data points observed at 1% fractions. All fractions were weighed.…”

Section: Resultsmentioning

confidence: 99%

Simulated Distillation by Gas Chromatography.

Green¹,

Schmauch²,

Worman³

1964

Anal. Chem.

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Section: Resultsmentioning

confidence: 99%

Simulated Distillation by Gas Chromatography.

Green¹,

Schmauch²,

Worman³

1964

Anal. Chem.

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“…In later works in the early 1950s, polytetrafluoroethylene (PTFE) was taken for a wide range of applications. Nerheim [21,22] could demonstrate that PTFE as band material improves the separation efficiency. He also investigated several designs called star geometry for the bands, coming to the result that more contact points with the column wall led to higher efficiency, but also to earlier flooding of the column [22].…”

Section: Spinning-band Columnsmentioning

confidence: 98%

Characterization of an Automated Spinning‐Band Column as a Module for Laboratory Distillation

et al. 2021

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Modularization is a promising technology to respond to short product life cycles. Not only in production but also in the laboratory, the concept of modularization can help to quickly explore new products or processes. A modular continuously operated spinning‐band distillation column for small product amounts is presented and characterized regarding operating window and separation efficiency. The column can be used either for first product amounts within a small‐scale production or as feasibility studies for distillation in a scale‐up context with small amounts of resources, energy, and time. By introducing the modular automation concept and a certain degree of automation structures, this column can be operated almost fully automatically and integrated quickly to higher automation structures such as a process orchestration layer.

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“…The column presented here is called spinning‐band column. In the beginning and to the half of the 20th century, it was mostly used for laboratory batch distillation , , before separation techniques such as high‐performance liquid chromatography (HPLC) started in the laboratory.…”

Section: Separation Unitsmentioning

confidence: 99%

Equipment and Separation Units for Flow Chemistry Applications and Process Development

et al. 2019

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Process development and small‐scale production gets more and more important in fine chemistry and pharmaceutical production. An equipment toolbox assists process synthesis presented in this contribution. A microfluidic calorimeter can measure kinetic and thermodynamic reaction data with commercial plate reactors. A tubular reactor coiled with 90° bends allows for long residence time with low axial dispersion, also known as coiled flow inverter (CFI). A similar setup is used for continuous‐flow cooling crystallization. Small‐scale columns with rotating internals are employed for distillation and liquid‐liquid extraction. Main emphasis will be put on automation and scale‐up in future steps.

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Analytical Distillation in Miniature Columns

Cited by 14 publications

References 22 publications

Simulated Distillation by Gas Chromatography.

Simulated Distillation by Gas Chromatography.

Characterization of an Automated Spinning‐Band Column as a Module for Laboratory Distillation

Equipment and Separation Units for Flow Chemistry Applications and Process Development

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