碳酸钠浸出
Sodium carbonate leaching
以上为机器翻译结果,长、整句建议使用 人工翻译 。
浸出渣用碳酸钠还原,再用硝酸分解金银合金,然后用锌粉置换银。
The leached out residue is reduced by sodium carbonate, then the gdd-silver alloy is decomposed by nitric acid, and finally zinc powder is used to replace silver.
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