正规大小单双下载

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                解决方案
                Solution
                Recovery of spent catalyst
                废催化剂回收
                Pd-C废催化剂需经焙烧,焙烧的作用〓主要是除去废催化剂中的载体和废吸附剂中的炭及有机物,因为有机【物和炭灰阻碍下工序中贵金属与强酸的充分接◇触,经过焙烧后可以提高贵金属的回收率。焙烧时钯会发生氧化反〖应,形成氧※化钯,而氧化钯不溶于无机酸,需要用还⊙原剂还原成金属钯才能进入溶解流程。