A kind of saponification agent of rare earth organic extractant and application method thereof

Abstract

The invention discloses a saponification agent of a rare earth organic extractant and an application method thereof. The saponification agent is composed of sodium hydroxide and sodium carbonate and can be used for the saponification of rare earth organic extractants such as P507. The invention does not generate ammonia nitrogen sewage, has low production cost, is convenient to operate, has high extraction efficiency, does not form a third phase during the extraction process, and obtains high purity products.

Description

technical field

[0001] The invention relates to the technical field of rare earth organic extraction, in particular to the technical field of the rare earth organic extraction method comprising the step of saponification of an organic extractant. Background technique

[0002] In the process of rare earth production, in most cases, different rare earth elements exist in the form of a mixture, and only when they need to be separated in the end, they are extracted separately through different processing methods.

[0003] At present, the most mature technology and the most widely used rare earth separation method is the organic extraction method, that is, the different rare earth elements in the rare earth mixture are separated by organic extractants. In the process of organic extraction, the organic phase composed of the organic extractant and the rare earth mixture will continue to undergo ion exchange, resulting in a continuous decline in the extraction capacity of the extrac...

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