ff1588d761d55f48f61a52249e1dcc24

<!DOCTYPE html>

<title>Fowler-Prozess</title>

</head>

<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Fowler-Prozess</span></h1>

</header>

</div>

<p>Der <b>Fowler-Prozess</b> ist ein Verfahren zur Gewinnung von <a href="Fluorcarbone" class="mw-redirect" title="Fluorcarbone">Fluorcarbonen</a>, insbesondere <a href="Fluorinert" title="Fluorinert">Fluorinerts</a>, mittels <a href="Cobalt(III)-fluorid" title="Cobalt(III)-fluorid">Cobalt(III)-fluorid</a> in der <a href="Gasphase" class="mw-redirect" title="Gasphase">Gasphase</a>.<sup id="cite_ref-fowler_1-0" class="reference"><a href="#cite_note-fowler-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-alii_2-0" class="reference"><a href="#cite_note-alii-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p><p>Fluorgas ist extrem reaktiv. Würde man ein Kohlenwasserstoff reinem Fluorgas aussetzen, würde es sich entzünden. Mit der milderen Fluorierungsreagenz Cobalttrifluorid lassen sich jedoch Fluorocarbone gewinnen.

</p>

<div class="mw-heading mw-heading2"><h2 id="Fowler-Prozess">Fowler-Prozess</h2></div>

<p>Der Kohlenwasserstoff wird bei Temperaturen von mindestens 300 °C in einem Strom aus trockenem Stickstoffgas über eine <a href="Wirbelschicht" title="Wirbelschicht">Wirbelschicht</a> aus Cobalt(III)-fluorid geführt, welches zu <a href="Cobalt(II)-fluorid" title="Cobalt(II)-fluorid">Cobalt(II)-fluorid</a> reduziert wird:<sup id="cite_ref-tetrahedron_3-0" class="reference"><a href="#cite_note-tetrahedron-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>

</p><p><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {CH_{4}+2\ CoF_{3}\ {\xrightarrow {\Delta T}}\ CH_{3}F+2\ CoF_{2}+HF} }">

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

<mover>

</mpadded>

</mover>

</mrow>

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

</mrow>

</mstyle>

</mrow>

<annotation encoding="application/x-tex">{\displaystyle \mathrm {CH_{4}+2\ CoF_{3}\ {\xrightarrow {\Delta T}}\ CH_{3}F+2\ CoF_{2}+HF} }</annotation>

</semantics>

</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/48e2bdf6469d4870c584dbe8c3ef982e085bc498.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-top: -0.441ex; width:41.602ex; height:4.176ex;" alt="{\displaystyle \mathrm {CH_{4}+2\ CoF_{3}\ \xrightarrow {\Delta T} \ CH_{3}F+2\ CoF_{2}+HF} }" loading="lazy"></span>

</p><p>Gewinnung von <a href="Perfluorhexan" title="Perfluorhexan">Perfluorhexan</a>:

</p><p><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {2\ CoF_{2}+F_{2}\ \rightarrow \ 2\ CoF_{3}} }">

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

</mrow>

</mstyle>

</mrow>

<annotation encoding="application/x-tex">{\displaystyle \mathrm {2\ CoF_{2}+F_{2}\ \rightarrow \ 2\ CoF_{3}} }</annotation>

</semantics>

</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/5fbabfe2118cb0eea2d83b01e0f1e87cb1da4dcc.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:24.499ex; height:2.509ex;" alt="{\displaystyle \mathrm {2\ CoF_{2}+F_{2}\ \rightarrow \ 2\ CoF_{3}} }" loading="lazy"></span>

</p><p><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {C_{6}H_{14}+28\ CoF_{3}\ \rightarrow \ C_{6}F_{14}+28\ CoF_{2}+14\ HF} }">

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

<msub>

</mrow>

</msub>

</mrow>

</mstyle>

</mrow>

<annotation encoding="application/x-tex">{\displaystyle \mathrm {C_{6}H_{14}+28\ CoF_{3}\ \rightarrow \ C_{6}F_{14}+28\ CoF_{2}+14\ HF} }</annotation>

</semantics>

</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/606e52aac325b2a3409a71248dd0d64aa3495f3b.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:48.577ex; height:2.509ex;" alt="{\displaystyle \mathrm {C_{6}H_{14}+28\ CoF_{3}\ \rightarrow \ C_{6}F_{14}+28\ CoF_{2}+14\ HF} }" loading="lazy"></span>

</p>

<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>

R. Fowler, W. Buford III, J. Hamilton, Jr., R. Sweet, C. Weber, J. Kasper, I. Litant: <cite style="font-style:italic">Synthesis of Fluorocarbons</cite>. In: <cite style="font-style:italic"><a href="Industrial_%26_Engineering_Chemistry" class="mw-redirect" title="Industrial & Engineering Chemistry">Industrial & Engineering Chemistry</a></cite>. <span style="white-space:nowrap">Band<span style="display:inline-block;width:.2em"> </span>39</span>, <span style="white-space:nowrap">Nr.<span style="display:inline-block;width:.2em"> </span>3</span>, März 1947, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>292–298</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1021/ie50447a612">10.1021/ie50447a612</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rfr_id=info:sid/de.wikipedia.org:Fowler-Prozess&rft.atitle=Synthesis+of+Fluorocarbons&rft.au=R.+Fowler%2C+W.+Buford+III%2C+J.+Hamilton%2C+...&rft.date=1947-03&rft.doi=10.1021%2Fie50447a612&rft.genre=journal&rft.issue=3&rft.jtitle=Industrial+%26+Engineering+Chemistry&rft.pages=292-298&rft.volume=39" style="display:none"> </span></span>

</li>

R. Benner, A. Benning, F. Downing, C. Irwin, K. Johnson, A. Linch, H. Parmelee, W. Wirth: <cite style="font-style:italic">Fluorocarbons by Fluorination of Hydrocarbons with Cobalt Trifluoride</cite>. In: <cite style="font-style:italic">Industrial & Engineering Chemistry</cite>. <span style="white-space:nowrap">Band<span style="display:inline-block;width:.2em"> </span>39</span>, <span style="white-space:nowrap">Nr.<span style="display:inline-block;width:.2em"> </span>3</span>, März 1947, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>329–333</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1021/ie50447a619">10.1021/ie50447a619</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rfr_id=info:sid/de.wikipedia.org:Fowler-Prozess&rft.atitle=Fluorocarbons+by+Fluorination+of+Hydrocarbons+with+Cobalt+Trifluoride&rft.au=R.+Benner%2C+A.+Benning%2C+F.+Downing%2C+...&rft.date=1947-03&rft.doi=10.1021%2Fie50447a619&rft.genre=journal&rft.issue=3&rft.jtitle=Industrial+%26+Engineering+Chemistry&rft.pages=329-333&rft.volume=39" style="display:none"> </span></span>

</li>

Graham Sandford: <cite style="font-style:italic">Perfluoroalkanes</cite>. In: <cite style="font-style:italic"><a href="Tetrahedron" title="Tetrahedron">Tetrahedron</a></cite>. <span style="white-space:nowrap">Band<span style="display:inline-block;width:.2em"> </span>59</span>, <span style="white-space:nowrap">Nr.<span style="display:inline-block;width:.2em"> </span>4</span>, Januar 2003, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>437–454</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1016/S0040-4020%2802%2901568-5">10.1016/S0040-4020(02)01568-5</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rfr_id=info:sid/de.wikipedia.org:Fowler-Prozess&rft.atitle=Perfluoroalkanes&rft.au=Graham+Sandford&rft.date=2003-01&rft.doi=10.1016%2FS0040-4020%2802%2901568-5&rft.genre=journal&rft.issue=4&rft.jtitle=Tetrahedron&rft.pages=437-454&rft.volume=59" style="display:none"> </span></span>

</li>

<li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text">Eintrag zu <a rel="nofollow" class="external text" href="https://roempp.thieme.de/lexicon/RD-03-02174"><i>Cobaltfluoride</i></a>. In: <i><a href="R%C3%B6mpp_Online" class="mw-redirect" title="Römpp Online">Römpp Online</a>.</i> Georg Thieme Verlag, abgerufen am 10. Februar 2015.<span class="editoronly" style="display:none;"></span></span>

</li>

</ol></div><div><div class="zim-footer">

Dieser Artikel wurde von <a class="external text" title="Zuletzt bearbeitet am 2021-05-27" href="https://de.wikipedia.org/wiki/?title=Fowler-Prozess&oldid=212435147">Wikipedia</a> herausgegeben. Der Text ist unter <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.de">Creative Commons Attribution-Share Alike 4.0</a> verfügbar, sofern nicht anders angegeben. Für die Mediendateien können zusätzliche Bedingungen gelten.

</div>

</div></div>

</div>

</main>

</div>

</body></html>