铑粉高效溶解制备三氯化铑的研究

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中图分类号：TQ138.22 文献标识码：A 文章编号：1008-9500（2025）10-0016-03

DOI： 10.3969/j.issn.1008-9500.2025.10.005

Abstract： Ruthenium chloride （RhC） 13 ）is an important precursor compound for the preparation of rhodium catalysts. To address the challenge of dissolving rhodium powder，an alternating current electrochemical dissolution process was proposed.Theeffectsoffactorssuchascurrntdensityhyrochloricacidconcentration，electrolsis time，andelectrolysis temperatureonthedisslutionofrhodium powder wereanalyzed.This method notonlyenables rapiddisslutionofrhodium powder butalso features simpleoperation.Research indicates thatas thecurrent density increases，thedissolutionrateof rhodium powder continuously rises，and when the current density exceeds 3A/cm2 ，the dissolution rate exhibits a steep upwardtrend.Overtime，the disolutionrateofrhodiumpowder initiall increases and thendecreases.As thehydrochloric acidconcentrationrises，thedissolutionrateaccelerates，reaching itspeak when theconcentrationreaches 8mol/L.Further increasingthe hydrochloricacid concentration leads toadecline inthedissolutionrate.With therise in electrolysis temperature，the dissolution rate of rhodium powder gradually increases，peaking at 60‰ .Beyond this temperature， the dissolution rate begins to decline.

Keywords： rhodiumpowder; rhodiumchloride; electrochemical dissolution

三氯化铑（ RhCl3 ）是一种重要的铑化合物，是烯烃异构化、氢硅化反应及还原反应等催化反应的关键前驱体。（剩余2336字）