Decomposition process of aluminum composite

Abstract

The invention discloses a decomposition process of an aluminum composite and relates to the field of the recovery and utilization of waste materials. The process comprises the following steps: delivering a material into an reaction kettle; adding decomposing solution into the material to perform decomposition at 60 to 130 DEG C for 10 to 50 minutes, wherein the weight of the decomposing solution is 2 to 5 times that of the material; and after the decomposition is finished, recovering the decomposing solution and discharging the material. Furthermore, during decomposition, the decomposing solution is pumped by a lower end liquid outlet pump to a plurality of spray openings on the upper end of the reaction kettle to be sprayed in the reaction kettle, and the volatilizing vapor of the decomposing solution is collected to a liquefying and recovering device to be liquefied and recovered; and after the material discharge, the decomposing solution is removed from the decomposed material and collected. The process has the advantages that: the decomposing speed is as high as 3 to 4 times the speed of open decomposition; and pollution is avoided, chemical raw materials recovered after the decomposition are all recycled, and production of any wastewater, waste materials and waste gases is avoided.

Description

Technical field: [0001] The invention relates to the field of recycling waste materials, and further relates to a production process for decomposing and recycling aluminum-plastic composite packaging materials. Background technique: [0002] my country's composite material and packaging material technology has developed rapidly in recent years, among which various aluminum-plastic composite packaging materials are more and more widely used, which brings great convenience to people's production and life, and also produces a large amount of waste materials. Therefore, innovating a production process for the decomposition and recycling of aluminum-plastic composite packaging materials that is completely decomposed, fully recycled, safe and efficient, has become a new topic in the field of waste material recycling. [0003] At present, the thermal decomposition process in the recycling process, the chemical reaction is carried out in an open container, a considerable part of the...

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Problems solved by technology

[0003] At present, in the thermal decomposition process in the recycling process, the chemical reaction is carried out in an open container, and a considerable part of the chemical raw materials volatilizes during the reaction, and the decomposition is fast and slow, and the efficiency is low, so there are defects such as loss of chemical materials and air pollution.

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