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Inventor: Korner; Reinhard
Address: Frankenthal, DE
No. of patents: 6
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7186395 |
Iron oxides with a higher degree of refining |
March 6, 2007 |
| Iron oxides are upgraded by calcining at from 700 to 1200.degree. C. |
| 7101824 |
Preparation of ruthenium/iron catalysts supported on carbon |
September 5, 2006 |
| The present invention relates to a process for the preparation of iron-doped ruthenium catalysts supported on carbon, and their use for the selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols, in particular for the hydrogenation of citral to |
| 7060857 |
Method for the production of isophorondiamine (ipda,3-aminomethyl-3,5,5-trimethylcyclohexylamine |
June 13, 2006 |
| In a process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine (isophoronediamine, IPDA) having a cis/trans isomer ratio of at least 70/30 from 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile, IPN), NH.sub.3 and H.sub.2, the hydrogenation is carried out at from 50 to |
| 6024890 |
Ferromagnetic pigments |
February 15, 2000 |
| The present invention relates to phosphorus-containing ferromagnetic pigments comprising, in particular, from 30 to 70% by volume of a core, said core comprising essentially iron and cobalt, and from 30 to 70% of a shell, said shell comprising essentially aluminum, phosporus, silicon, |
| 5569409 |
Finely divided acicular magnetic modified chromium dioxide |
October 29, 1996 |
| A finely divided acicular CrO.sub.2 modified with iron, tellurium and/or antimony and having a high coercive force possesses improved heat stability of the residual induction and a relatively narrow distribution of the particle size and of the coercive force. This CrO.sub.2 pigment is |
| 5484628 |
Preparation of acicular cobalt-containing magnetic iron oxide |
January 16, 1996 |
| Acicular cobalt-containing magnetic iron oxides having a high coercive force and a core/shell structure and hence low temperature dependence of the coercive force are prepared by a process in which, in a first stage, surface activation is effected by means of iron(II) and cobalt ions und |
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