| 摘要 |
<p>PCT No. PCT/AT90/00050 Sec. 371 Date Jan. 28, 1991 Sec. 102(e) Date Jan. 28, 1991 PCT Filed May 30, 1990 PCT Pub. No. WO90/14899 PCT Pub. Date Dec. 13, 1990.In a process for the production of clinkers from sludges containing heavy metals, especially electroplating sludges, river and/or harbor sludges, in which the sludges are mixed with clay, especially brickyard clay, and optionally lean materials and fluxing materials and then are burned to clinkers especially at temperatures between 750 DEG and 1150 DEG C., zeolites are admixed with the sludges and the clay before the burning.</p> |
