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Catalysts containing copper and zinc for the purification of ethylene |
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Process and catalyst for the selective hydrogenation of butynediol to butenediol |
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1998-02-03 |
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Continuous isolation of phthalic anhydride and maleic anhydride from reaction gases |
Eckehard Danz, Gerd Dumbgen, Johannes E. Schmidt, Friedrich Wirth |
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Preparation of propanediols using a copper-and zinc containing hydrogenation catalyst |
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| 4386018 |
Hydrogenation catalysts for the preparation of propanediols |
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1983-05-31 |
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Hydrogenation catalysts for the preparation of propanediols and processes for the preparation of propanediols, using such catalysts |
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1983-05-31 |
| 4192807 |
Manufacture of .gamma.-butyrolactone from maleic anhydride |
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1980-03-11 |
