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| <title>Catalysts</title> | |
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| <!-- webmaster: Adolfo Castro (adolfoca@ats.it)--><div align="right"> | |
| <table border="0" width="90%"> | |
| <tr> | |
| <td><pre> </pre> | |
| </td> | |
| <td><font size="5"><b>Catalysts</b></font> <hr | |
| align="left"> | |
| <p><b>CHIMET Spa</b> <i>"Catalysts Division" | |
| has been a supplier of Precious Metals Heterogeneous | |
| Catalysts (Pt, Pd, Rh and Ru) for more than 15 years. | |
| These catalysts are widely used in chemical processes | |
| ranging from gas-phase oxidation of VOCs through | |
| liquid-phase hydrogenation of terephthalic acid (to PTA) | |
| to highly selected hydrogenation of intermediates in | |
| pharmaceutical processes.</i></p> | |
| <p><i>The most extensively used precious metals catalysts | |
| are Pt and Pd supported on activated carbon or alumina. | |
| However, metals like Ru and Rh as well as other supports | |
| such as barium sulfate, calcium carbonate and others, are | |
| also available.</i></p> | |
| <p><b>CHIMET Spa</b><i> can offer precious metal | |
| catalysts in different metal contents, various particle | |
| sizes and in dry or wet forms.</i></p> | |
| <p align="center"><b>CHIMET Spa</b><b><i> catalysts can | |
| be divided into five groups:</i></b><em><br> | |
| <br> | |
| 1) </em><font size="3"><em><strong>Catalysts for | |
| hydrogenation of organic intermediates</strong></em></font><font | |
| size="4">:</font><em><img src="images/catal1_50dpi.jpg" | |
| align="right" hspace="10" vspace="10" width="198" | |
| height="417"></em></p> | |
| <blockquote> | |
| <blockquote> | |
| <p><i>Pd . . 0.1 - 15 % (on carbon powder). <br> | |
| 0.1 - 1 % (on carbon extrudates)<br> | |
| 1.0 - 5 % (on BaSO4 powder)<br> | |
| 1.0 - 5 % (on CaCO3 powder)<br> | |
| 1.0 - 5 % (on alumina powder)<br> | |
| Pt . . 0.1 - 10 % (on carbon powder)<br> | |
| 1.0 - 5 % (on alumina powder)<br> | |
| Rh . . 0 .1- 5 % (on carbon powder)<br> | |
| 1.0 - 5% (on alumina powder)<br> | |
| Ru . . 0 .1- 5 % (on carbon powder)<br> | |
| 1.0 - 5% (on alumina powder)</i></p> | |
| </blockquote> | |
| </blockquote> | |
| <p><b><i>2) Catalyst for the purification of terephthalic | |
| acid</i></b></p> | |
| <blockquote> | |
| <p><i>Pd . . . . . 0.5% (on carbon granulates)</i></p> | |
| </blockquote> | |
| <p><b><i>3) Catalyst for the synthesis of H</i></b><font | |
| size="2"><sub><b><i>2</i></b></sub></font><b><i>O</i></b><font | |
| size="2"><sub><b><i>2</i></b></sub></font></p> | |
| <blockquote> | |
| <p><i>Pd . . . . . 2.0% (on silico-alumina powder)</i></p> | |
| </blockquote> | |
| <p><b><i>4) Catalysts for VOCs abatement</i></b></p> | |
| <blockquote> | |
| <p><i>Pd . . . . . 0.3 - 0.5 % (on alumina spheres)<br> | |
| Pt . . . . . 0.1 - 0.3 % (on alumina spheres)</i></p> | |
| </blockquote> | |
| <p><i>Upon request, </i><b>CHIMET Spa</b><i> can produce | |
| any catalyst having special precious metals loading. | |
| Custom-made catalysts (with exclusive rights) can also be | |
| produced under secrecy agreement.</i></p> | |
| <blockquote> | |
| <p><b><i>5) Precious metals salts and oxides as | |
| catalysts</i></b></p> | |
| <blockquote> | |
| <p><i>Today, many precious metals salts and | |
| oxides are used as catalysts.</i><b> CHIMET Spa</b><i> | |
| is able to supply several of them, the following | |
| being amongst those more frequently produced:</i></p> | |
| </blockquote> | |
| <blockquote> | |
| <p><i>Pd . . . . . acetate, chloride, oxide<br> | |
| Pt . . . . . Adams oxide, Aurum oxide, | |
| chloroplatinic acid, potassium tetrachloride<br> | |
| Rh . . . . . chlorotris (triphenylphosphine) as | |
| Wilkinson's catalyst, trichloride</i><em><br> | |
| Ru . . . . . oxyde, trichloride<img | |
| src="images/catal2_130dpi.jpg" align="right" | |
| hspace="0" width="410" height="262"></em></p> | |
| </blockquote> | |
| </blockquote> | |
| <p><b>CHIMET Spa </b><i>ensures product quality according | |
| to ISO 9002 rules. Technical assistance to help customers | |
| to solve any problems, arising during catalyst use in | |
| industrial plants, is promptly given by </i><b>CHIMET Spa | |
| </b><i>specialists. </i></p> | |
| <p><b>CHIMET Spa </b><i>has a Catalyst Characterization | |
| System, consisting of more than 30 different chemical, | |
| physical and catalytic tests. This extensive set of tests | |
| is available to any customer requiring analysis or | |
| comparison of commercial catalysts.</i></p> | |
| <p><font size="3"><em><strong>Refining and recovery of | |
| precious metals from spent catalysts </strong></em></font></p> | |
| <blockquote> | |
| <p><font size="3"><strong>CHIMET Spa</strong></font><em>, | |
| being one of the leading chemical-metallurgical | |
| companies in Europe, recovers </em><img | |
| src="images/foto13.gif" align="right" hspace="10" | |
| vspace="10" width="166" height="155"><em>and refines | |
| precious metals from spent catalysts, and the | |
| precious metals are then re-worked into new | |
| catalysts. Yield on recovery and time on return of | |
| the precious metals as fresh catalysts are the best | |
| available in the field, </em><font size="3"><strong>CHIMET | |
| Spa </strong></font><em>being equipped with all the | |
| necessary advanced technologies.</em></p> | |
| <p><em>The personnel of </em><font size="3"><strong>CHIMET | |
| Spa </strong></font><em>customers are encouraged to | |
| be present at the recovery operations involved.</em></p> | |
| </blockquote> | |
| </td> | |
| </tr> | |
| <tr> | |
| <td> </td> | |
| <td> </td> | |
| </tr> | |
| </table> | |
| </div> | |
| <hr align="right" width="80%"> | |
| <div align="right"> | |
| <table border="0"> | |
| <tr> | |
| <td><pre> </pre> | |
| </td> | |
| <td align="right"><font size="3"><b>CHIMET</b></font><font | |
| size="2"><b> s.p.a. - Catalysts Division</b><br> | |
| Via di Pescaiola, 74<br> | |
| 52040 VICIOMAGGIO (AR) - ITALY<br> | |
| Tel: +39-575-441565 Fax: +39-575-441424<br> | |
| E-mail: </font><a href="mailto:%20catalyst@chimet.com"><font | |
| size="2"><u>catalyst</u>@chime<u>t.com </u></font></a><font | |
| size="2"><br> | |
| Person to contact: Ing. <strong>Mario Cerboni</strong></font></td> | |
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