| 发明名称 |
METHOD OF PROCESSING IRON-CONTAINING SLUDGE INTO PIGMENTED MATERIAL |
| 摘要 |
<p>The present invention relates to the field of industrial ecology. It deals with the process in which sludge, recovered in waste water treatment by hetero-coagulation is converted into red, redbrown pigment material. At first sludge is treated by phosphoric acid and afterwards by water-soluble zinc salt, and partly by zinc sulfate in the molecular ratio of Fe2O3 to ZnO as 1 to 0,1-0,3; the obtained mixture is homogenised, dried and thermally treated at the temperature of 800-850 oC.@</p> |
| 申请公布号 |
LT2010015(A) |
申请公布日期 |
2011.08.25 |
| 申请号 |
LT20100000015 |
申请日期 |
2010.02.12 |
| 申请人 |
VILNIAUS GEDIMINO TECHNIKOS UNIVERSITETAS, , |
发明人 |
BALTRENAS, PRANAS,;BUDILOVSKIS, DANAS, |
| 分类号 |
C02F1/00;C09C1/00 |
主分类号 |
C02F1/00 |
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