Method for preparing acetylene hydrochlorination catalyst by using secondary gold resource

• Main Authors: ZHOU XIAOXIAO, HU XIANZHI, GU YUNGUI, CHEN YUNLONG, YOU YOUNG-KWON, GU SHUNING, WU HANJIAO, ZI FUTING, WU JIN
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for preparing an acetylene hydrochlorination catalyst by using a secondary gold resource, and belongs to the fields of hydrometallurgy, precious metal recovery and catalysis. The method specifically comprises the following steps: weighing a certain amount of waste electronic materials, dissolving and leaching metals in the waste electronic materials by using a thiosulfate radical-containing leaching method such as thiosulfate or copper-ammonia-thiosulfate or copper-ethidene diamine-thiosulfate, and carrying out solid-liquid separation to prepare a waste electronic resource leachate for later use; weighing a certain amount of activated carbon or modified activated carbon to dip (or adsorb) metal in the leachate; after adsorbing for a certain time, separating the adsorbent from the solution, and drying to obtain the catalyst. The method provided by the invention not only can effectively separate and enrich metals in waste electronic materials such as printed circuit boards, CPUs