Breakthrough in palladium sulfate production technology helps drive increased product demand
Palladium sulfate is a precious metal compound reagent that is widely used in electronic components, petrochemical catalysis, medical health, automobile exhaust purification catalysts and other industries. Especially as a special electronic chemical for PCB, palladium sulfate solution plays a decisive role in the electroplating process of printed circuit boards (PCB).
Palladium sulfate is mainly used in the following two processes of the printed circuit board (PCB) electroplating process: one is used in the metallization process of non-metallic materials on the circuit board. Before electroless copper plating, it must be treated with palladium sulfate to form a layer with A catalytically active seed layer; the other is to build a catalytically active palladium seed layer on the copper surface, using palladium as a catalyst for electroless nickel plating, so that the nickel-phosphorus layer can be deposited normally on the copper surface. Both processes are based on palladium sulfate solution, which is also called palladium activation solution, palladium sulfate complex solution or chlorine-containing palladium salt.
《China Sulfuric Acid 2022-2027 released by the Industrial Research Center The palladium industry market in-depth research and development prospect forecast report》 shows that in recent years, with the development of 5G communications, The continuous upgrading and application expansion of technologies such as artificial intelligence, cloud computing, smart wearables, and smart homes. Printed circuit boards serve as key electronic interconnect components for electronic products. The booming development of downstream application industries has driven the continued demand for printed circuit boards. increase. The continued growth of domestic demand for printed circuit boards has led to an increase in the consumption of palladium sulfate products. The average annual demand for palladium sulfate has grown by more than 8%. At the same time, the price of palladium sulfate is greatly affected by the precious metal palladium in the international market. my country’s palladium sulfate products Prices have also continued to rise. The average price of palladium sulfate products has increased from 345.23 yuan/g in 2019 to 501.19 yuan/g in 2021. The price has declined in 2022.
At present, there are relatively few manufacturers of palladium sulfate products in my country, mainly precious metal processing companies, including Guiyan Platinum Co., Ltd., Xi’an Jianda Bolin Technology Co., Ltd., Shanghai Jiuyue Chemical Co., Ltd., and Shanghai Fubai Chemical Co., Ltd. Technology Co., Ltd., etc., industry competition is relatively relaxed. In particular, Yanbo Industry Co., Ltd., in addition to providing palladium sulfate, can also provide palladium chloride, which can replace palladium sulfate to a certain extent.
At present, the preparation of palladium sulfate in my country still faces some problems, mainly in the following aspects: First, the prepared palladium sulfate solution is unstable and is easily decomposed and precipitated, and the precipitate cannot be re-dissolved, which cannot meet the needs of electroplating; Second, the residual nitrate and chloride ions in the palladium sulfate solution exceed the standard, causing circuit board leakage and reducing product yield. Industrial researchers believe that breakthroughs in palladium sulfate technology will be conducive to the further expansion of domestic palladium sulfate scale, and will have a positive impact on the development of the PCB electroplating industry. As well as the expansion of high-end PCB production capacity and import substitution have important driving effects.
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