硝酸钯、硝酸铂、硝酸铑是汽车尾气催化剂的重要前驱体,稀释稳定性是产品的重要指标之一,由于在进行催化剂涂覆前,硝酸钯、硝酸铂溶液需要进行稀释,由于铂、钯的水解导致产品产生沉淀而无法用于涂覆,即稀释稳定性不合格。本文针对产品稀释稳定性关键技术指标进行研究,并采用我公司的产品和进口产品制备催化剂,进行了催化剂性能比对。 Palladium nitrate, platinum nitrate and rhodium nitrate are important precursors for automobile exhaust catalysts. Dilution stability is one of the most important products. Since palladium nitrate and platinum nitrate solutions need to be diluted before the catalyst is coated, platinum and palladium Of the hydrolysis lead to precipitation of the product can not be used for coating, dilution stability failure. In this paper, the key technical indexes of product dilution stability are studied, and the catalysts of our company and imported products are used to prepare the catalyst performance comparison.