| 4576644 |
Method of producing cement from raw material containing harmful substances |
— |
1986-03-18 |
| 4402667 |
Process and an installation for the heat-treatment of fine-grained material |
— |
1983-09-06 |
| 4352660 |
Method and apparatus for burning fine-grain material |
Janos Steiner, Kalman Wenzly, Jozsef Toth, Peter Tiggesbaumker, Gerhard Butschko |
1982-10-05 |
| 4300879 |
Process for the heat-treatment of fine-grained material |
Dieter Michaelsen, Dieter Dreyer, Dietmar Holsiepe, Peter Tiggesbaumker, Klaus Bauer +2 more |
1981-11-17 |
| 4260370 |
Process for the heat-treatment of fine grained material |
Wolfgang Rother |
1981-04-07 |
| 4257766 |
Processes and apparatus for the heat treatment of fine-grained material |
Horst Ritzmann, Klaus Bauer, Heinz-Herbert Schmits, Hennig Korn |
1981-03-24 |
| 4245981 |
Shaft type countercurrent heat exchanger |
Gert Tegtmeier, Wolfgang Triebel |
1981-01-20 |
| 4213790 |
Process for the production of cement in a fluidized bed |
Klaus Bauer, Horst Kretzer, Heinrich Weber, Rudiger Beyer, Wilfried Kreft +6 more |
1980-07-22 |