Method of recovering Pd from low-concentration waste Pd ion liquid with becteria thallus
The present invention relates to the recovery of micro amount of noble metal and the used bacteria is lichenoid bacillus No.R08. R08 bacillus thallus solution of 0.4-2.0 g/L concentration and water solution of Pd ion of 30-300 mg/L are first mixed and vibrated at 5-60 deg.c pH 2.0-3.5 and 130 Hz vib...
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Zusammenfassung: | The present invention relates to the recovery of micro amount of noble metal and the used bacteria is lichenoid bacillus No.R08. R08 bacillus thallus solution of 0.4-2.0 g/L concentration and water solution of Pd ion of 30-300 mg/L are first mixed and vibrated at 5-60 deg.c pH 2.0-3.5 and 130 Hz vibration frequency for 3-90 min; the mixed liquid is then filtered; and filtered Pd adsorbing bacillus thallus is set at room temperature for 6-48 hr and burned at 550-800 deg.c for 1.5-3 hr to obtain metal Pd. The simple process is especially suitable for recovering Pd from low concentration solution and the Pd ion adsorbing rate may reach 99%. |
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