Separating Fluid, Method And System For Separating Multilayer Systems

Abstract

A separating fluid, method and use for separating multilayer systems, especially photovoltaic modules, for the purpose of recycling, which allow the separation of multilayer systems. Especially photovoltaic modules, in comparatively simple manner in terms of the processes used, in as environmentally friendly a manner as possible, at high recycling rates. For this purpose, the separating fluid is a nanoscale dispersion or a precursor thereof.

Description

CROSS RELATION TO OTHER APPLICATIONS[0001]This application is a continuation-in-part application of international patent application No. PCT / EP2012 / 051172 filed on 25 Jan. 2012 claiming priority of German patent application No. 10 2011 000 322.3 of 25 Jan. 2011.BACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]The present disclosure relates to a separating fluid for separating multilayer systems, in particular in photovoltaic modules, batteries or screens, for the purpose of recycling.[0004]The present invention refers to a method for separating multilayer systems, in particular in photovoltaic modules, for the purpose of recycling, comprising a wash with a separating fluid.[0005]The present invention further to use of a separating fluid for separating multilayer systems, in particular photovoltaic modules, for the purpose of recycling.[0006]Finally, the present disclosure relates to a facility carrying out the above method of the kind named above.[0007]2. Brief Descriptio...

AI Technical Summary

Benefits of technology

The present disclosure describes a separating fluid, method, use, and facility for separating multilayer systems, such as photovoltaic modules, at a high recycling rate and in a simple and environmentally friendly way. The separating fluid is a nanoscale dispersion, which comprises micro-emulsions and mini-emulsions. It helps to reduce interfacial tension between the glued and coated materials and cause separation. Overall, the technology allows for efficient and effective recycling of multilayer systems.

Problems solved by technology

The methods are energy-intensive and only suitable for thin-film modules within limitations.

The disadvantage is that use of such substances is not environmentally compatible and separation and concentration of the recyclable materials after etching may be require elaborate methods.

Other prior art methods result in the entire dissolution of the materials, due to the acids used to remove layers.

These other prior art methods require highly energy-consuming and material-consuming methods, such as electrolysis, to separate these dissolved materials from the etching solution used so that the waste materials are available for further use.

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