Air Products and Chemicals, Inc.

Steven Arnold Krouse

Reinaldo Mario Machado

James Joseph Hart

James Patrick Nehlsen

John Chodur

An electrolytic cell which is partitioned into one or more anode chambers and cathode chambers by one or more partition walls between each anode chamber and cathode chamber, wherein each anode chamber comprises one or more anodes comprising an inner surface and an outer surface, and each cathode chamber comprises one or more cathodes, wherein the anode chamber and the cathode chamber are configured such that any one of the one or more cathodes is adjacent to the outer surface of the one or more anodes and there is no cathode adjacent to the inner surface of the one or more anodes; a molten salt electrolyte surrounding the one or more anodes and the one or more cathodes; at least one anode gas outlet for withdrawing gas from the anode chamber; and at least one cathode gas outlet for withdrawing gas from the cathode chamber.

Electrolytic apparatus, system and method for the efficient production of nitrogen trifluoride

An HFBD purification process includes: (a) contacting a composition containing HFBD with an adsorbent to remove from the HFBD at least two impurities selected from the group consisting of water, an alcohol, hydrofluoric acid and a fluorinated olefin, wherein the adsorbent is a solid having an average pore diameter of about 5 &angst; and the adsorbent is contacted with the HFBD at a rate of at least 2.7 kg of the HFBD per hour; and (b) recovering from the adsorbent a purified HFBD product containing at least 99.9 vol. % HFBD, a reduced amount of the impurities and less than 0.1 vol. % hexafluoro-2-butyne. Alternatively, the process can be conducted at any contacting rate to produce 99.96 vol. % HFBD. The process can also be conducted at any contacting rate in a bed within a column having a length of at least 30 cm and an inner diameter of at least 2.5 cm.

Growing community of inventors

Tamaqua, PA, United States of America

Steven Arnold Krouse