Separating Fluid, Method And System For Separating Multilayer Systems

Inactive Publication Date: 2013-12-05
SAPERATEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]The present disclosure teaches a separating fluid, a method, a use and a facility to enable separation of multilayer systems, for example

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

Method used

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  • Separating Fluid, Method And System For Separating Multilayer Systems
  • Separating Fluid, Method And System For Separating Multilayer Systems
  • Separating Fluid, Method And System For Separating Multilayer Systems

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0078]

Contribution to% bythe aqueousComponentweightSubstancecomponentAnionic17.8Leuna alkane sulfonate 3011.8surfactant(sodium alkane sulfonatemixture with an averagechain length C15 (C12-C18) based on n-paraffin -34% watery solutionNon-ionic5.9Polyethylene glycol-surfactantmono-n-dodecyl / tridecyl / tetradecyl / -pentadecylether assubstance mixture ofcompositions with 4 to 25ethylenoxide unitsHydrotrope3.5Cublen R 60 [N-(2-1.4hydroxyethyl)-N,N-bis-methylenephosphonic acidin the form of a 60%watery solutionCo-surfactant8.9Butanol-2Organ. Phase7.0Xylen (techn.)Addition of water56.90Watery70.1Total of addition of watercomponent totaland contributions to thewatery component

example 2

[0079]

Contribution to% bythe aqueousComponentweightSubstancecomponentAnionic6.0Leuna alkane sulfonatesurfactant95 (sodium alkanesulfonate mixture withan average chain lengthC15 (C12-C18) basedon n-Paraffin)Non-ionic6.0Polyethylene glycol-surfactantmono-n-dodecyl / tetradecylether assubstance mixture with9 ethylenoxide unitsHydrotrope2.0Dimethylaminomethane-bis-phosphonic acidCo-Surfactant9.0EthylhexanolOrganic phase8.0MesitylenAddition of water69.0Aqueous69.0Total of addition ofcomponent totalwater and contributionsto the watery component

[0080]In the nanoscale dispersions according to example 2, NaOH may be added to increase the pH value.

example 3

[0081]

Contribution to% bythe aqueousComponentweightSubstancecomponentAmphoteric5.0N,N-dimethyl-N-surfactanttetradecyl-ammoniopropanesulfonateNon-ionic6.0Polyethylene glycol-surfactantmono-n-dodecyl / tetradecylether assubstance mixture with 9ethylenoxide unitsHydrotrope2.0Dimethylaminomethane-bis-phosphonic acidCo-Surfactant9.0EthylhexanolOrganic phase7.0Hydrosol P 180 EAAddition of water71.0Watery71.0Total of addition of watercomponent totaland contributions to thewatery component

[0082]In example 3, the anionic surfactant is replaced by an amphoteric surfactant in contrast to examples 1 and 2.

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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...

Claims

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Application Information

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IPC IPC(8): C09K13/02C09K13/00B01J8/00
CPCC09K13/02B01J8/00C09K13/00B03B9/061C08J11/06C08J11/08H01L31/042Y02E10/50Y10T156/1116Y10T156/19Y02W30/20Y02W30/62Y02W30/82B29B17/02G03F7/42H01L21/02B32B38/10B32B43/006C08J7/02Y10T156/11Y10T156/1111Y10T156/1121Y10T156/1922
Inventor KERNBAUM, SEBASTIANSEIBT, HORST
Owner SAPERATEC
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