Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for treating waste automobile tail gas catalyst through pyrogenic attack
The invention provides a method for treating a waste automobile tail gas catalyst through pyrogenic attack, and belongs to the technical field of waste resource processing. The method comprises the following steps: carrying out rough grinding and ultra-fine grinding on the waste automobile tail gas catalyst, mixing the catalyst with copper-containing hazardous waste to prepare granules, then adding the granules to an oxygen-rich side blowing furnace for smelting, trapping rare and precious metals under the high temperature by adopting the copper-containing hazardous waste, and then extractingthe rare and precious metals from copper anode mud through a wet method. Low-sulfur flue gas produced in the smelting process is subjected to organic amine adsorption desulfurization after dust collection, and pure sulfur dioxide gas produced by desorption is used for producing sulfuric acid; and smelting furnace slag is used for producing the microcrystalline glass and other building materials after being subjected to magnetic separation. The treatment method not only can efficiently recycle rare and precious metals, is short in technological process and large in treatment amount, reduces energy consumption, and improves the recycling rate of the rare and precious metals; and meanwhile, waste gas and waste residues are effectively treated and recycled, and production environment is good.
本发明提供一种火法处理废汽车尾气催化剂的方法，属于废弃资源处理技术领域。本发明包括如下步骤：将废汽车尾气催化剂进行粗磨和超细磨，再与含铜危险废物混合制粒，然后加入到富氧侧吹炉进行熔炼，采用含铜危废高温下捕集稀贵金属，进而从铜阳极泥中湿法提取稀贵金属。熔炼工序产生的含硫低的烟气经收尘后进行有机胺吸附脱硫，解吸产出的纯二氧化硫气体用于生产硫酸；熔炼炉渣经磁选后用于生产微晶玻璃等建材。本发明的处理方法不仅可以高效回收稀贵金属，工艺流程短、处理量大、减少了能耗、提高稀贵金属回收率；同时废气、废渣得到有效处理，回收利用，生产环境优良。
Method for treating waste automobile tail gas catalyst through pyrogenic attack
The invention provides a method for treating a waste automobile tail gas catalyst through pyrogenic attack, and belongs to the technical field of waste resource processing. The method comprises the following steps: carrying out rough grinding and ultra-fine grinding on the waste automobile tail gas catalyst, mixing the catalyst with copper-containing hazardous waste to prepare granules, then adding the granules to an oxygen-rich side blowing furnace for smelting, trapping rare and precious metals under the high temperature by adopting the copper-containing hazardous waste, and then extractingthe rare and precious metals from copper anode mud through a wet method. Low-sulfur flue gas produced in the smelting process is subjected to organic amine adsorption desulfurization after dust collection, and pure sulfur dioxide gas produced by desorption is used for producing sulfuric acid; and smelting furnace slag is used for producing the microcrystalline glass and other building materials after being subjected to magnetic separation. The treatment method not only can efficiently recycle rare and precious metals, is short in technological process and large in treatment amount, reduces energy consumption, and improves the recycling rate of the rare and precious metals; and meanwhile, waste gas and waste residues are effectively treated and recycled, and production environment is good.
本发明提供一种火法处理废汽车尾气催化剂的方法，属于废弃资源处理技术领域。本发明包括如下步骤：将废汽车尾气催化剂进行粗磨和超细磨，再与含铜危险废物混合制粒，然后加入到富氧侧吹炉进行熔炼，采用含铜危废高温下捕集稀贵金属，进而从铜阳极泥中湿法提取稀贵金属。熔炼工序产生的含硫低的烟气经收尘后进行有机胺吸附脱硫，解吸产出的纯二氧化硫气体用于生产硫酸；熔炼炉渣经磁选后用于生产微晶玻璃等建材。本发明的处理方法不仅可以高效回收稀贵金属，工艺流程短、处理量大、减少了能耗、提高稀贵金属回收率；同时废气、废渣得到有效处理，回收利用，生产环境优良。
Method for treating waste automobile tail gas catalyst through pyrogenic attack
一种火法处理废汽车尾气催化剂的方法
ZHANG SHUNYING (Autor:in) / HUANG MING (Autor:in) / LIU SHILIANG (Autor:in)
25.08.2020
Patent
Elektronische Ressource
Chinesisch
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