Method for recovering rhodium from rhodium-containing organic waste liquid
The invention relates to a method for recovering rhodium from rhodium-containing organic waste liquid. The method comprises the steps that macromolecular organic matter in a rhodium-containing waste organic solvent is destroyed into small molecules, and the small molecules are removed through a conc...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a method for recovering rhodium from rhodium-containing organic waste liquid. The method comprises the steps that macromolecular organic matter in a rhodium-containing waste organic solvent is destroyed into small molecules, and the small molecules are removed through a concentration method, so that the amount of the rhodium-containing waste needing to be incinerated is greatly reduced, and the rhodium loss caused by flue gas entrainment in the incineration process is reduced while the incineration amount is reduced; and then temperature programming is used for ashing,so that the rhodium loss caused by flue gas entrainment is reduced to a certain extent, and finally the precious metal rhodium in the rhodium-containing waste liquid is recovered at high yield through the two steps. The rhodium yield of the method is above 99%.
本发明涉及一种从含铑有机废液中回收铑的方法,将含铑废有机溶剂中的大分子有机物破坏成小分子,使用浓缩的方法除掉,极大减少了需焚烧的含铑废料量,焚烧量减少的同时减少了焚烧过程烟气夹带造成的铑损失;再使用程序升温灰化,也在一定程度上减少烟气夹带造成的铑损失,最终双管齐下高收率回收含铑废液中的贵金属铑。本发明的铑收率达到99%以上 |
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