发明名称 |
A METHOD FOR THE REMOVAL OF ORGANIC CHEMICALS AND ORGANOMETALLIC COMPLEXES FROM PROCESS WATER OR OTHER STREAMS OF A MINERAL PROCESSING PLANT USING ZEOLITE |
摘要 |
<p>The present invention refers to a method to remove organic chemicals and organometallic complexes (organic heavy metal complexes) using zeolite from process water or tailings streams of a mineral processing plant where diethylenetriamine (DETA) or triethylenetetramine (TETA) is used as a flotation reagent and DETA-metal complexes are found in process water or tailings streams. In a preferred embodiment, the process water or slurry tailings streams of a mineral processing plant containing DETA, DETA-metal complexes and residual heavy metals are contacted with natural zeolite. This can be carried out by adding the natural zeolite to the process streams (slurries) while mixing with a mechanical mixer to efficiently adsorb DETA, DETA-metal complexes and heavy metals from the process streams (slurries) on the zeolite. The loaded zeolite is then discarded with the flotation tailings.</p> |
申请公布号 |
CA2812120(A1) |
申请公布日期 |
2012.03.22 |
申请号 |
CA20112812120 |
申请日期 |
2011.09.13 |
申请人 |
VALE S/A |
发明人 |
XU, MANQUI;SCHOLEY, KENNETH ERWIN;DONG, JIE |
分类号 |
C02F1/42;B01D15/02;B01D15/36;C02F1/62;C22B3/24 |
主分类号 |
C02F1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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