Ruthenium Recovery_Different Ruthenium Recovery Technologies, Classification, and Processing Procedures

Different Ruthenium Recovery Technologies, Classification, and Processing Procedures

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Ruthenium recovery technologies are mainly divided into two categories: physical methods and chemical methods. Physical methods include techniques such as electrolysis and thermal treatment, which are primarily used to recover ruthenium from relatively pure ruthenium waste. Chemical methods, on the other hand, involve steps such as dissolution, extraction, and precipitation and are suitable for complex mixtures of ruthenium-containing waste. Each of these technologies has its pros and cons: physical methods usually have lower costs but are limited to specific types of waste; chemical methods have a broader application range but relatively higher costs.

According to professional laboratory data, the adoption of appropriate pretreatment and refining processes can significantly improve ruthenium recovery rates. This requires us to classify the sources and compositions of ruthenium-containing waste. First, ruthenium waste should be classified into major categories such as catalyst waste, electronic waste, and chemical waste. Then, the appropriate ruthenium recovery process should be selected based on the different types of waste.

From experience, ruthenium catalyst waste usually contains various metals and requires complex chemical treatments to separate pure ruthenium. The ruthenium in electronic waste is relatively pure, making it more suitable for recovery using physical methods. The differences resulting from this classification reflect the diversity in the form and impurity types of ruthenium in different wastes. Understanding the specific composition and characteristics of the waste is key to achieving efficient ruthenium recovery.

Naturally, the recovery processes for different types of ruthenium waste also vary. The process for recovering ruthenium from catalyst waste typically includes steps such as crushing, chemical leaching, metal extraction, and purification. The complexity of this process stems from the close combination of ruthenium with other metals in catalyst waste. In contrast, recovering ruthenium from electronic waste may only require simple physical separation and electrolytic refining.

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