A recycled cellulose raw material and a method for recycling a cellulose raw material from blended textile waste with high reliability and yielding high raw material quality is shown, the method comprising the steps in the given order: providing the blended textile waste containing at least one cellulose component and at least one synthetic polymer component, treating the blended textile waste in a non-oxidizing aqueous treatment medium in order to degrade the at least one synthetic polymer component, whereby the treatment is carried out at a temperature between 100° C. and 200° C., and obtaining the recycled cellulose raw material from the treated blended textile waste.

A method for recovering a resource from a CIGS thin-film solar cell to be recycled includes a) providing the CIGS thin-film solar cell, and b) subjecting the CIGS thin-film solar cell to a cooling treatment at a predetermined temperature, such that a light absorbing unit of the CIGS thin-film solar cell can be recovered due to thermal strain difference of materials of the CIGS thin-film solar cell.

The efficiency of roasting black dross can be improved by pre-processing the black dross before roasting. Black dross can be crushed and reconstituted into pellets having internal channels. The internal channels can be filled with additives designed to fully oxidize during a dross roasting process, enabling the internal channels to be open and gas to flow therethrough during a dross roasting process. The crushed black dross can be crushed to pieces below 10 mm and screened for larger pieces prior to pelletizing to ensure consistent pellets. Optionally, an eddy current separator can remove some metallic aluminum from the crushed black dross prior to pelletizing.

The efficiency of roasting black dross can be improved by pre-processing the black dross before roasting. Black dross can be crushed and reconstituted into pellets having internal channels. The internal channels can be filled with additives designed to fully oxidize during a dross roasting process, enabling the internal channels to be open and gas to flow therethrough during a dross roasting process. The crushed black dross can be crushed to pieces below 10 mm and screened for larger pieces prior to pelletizing to ensure consistent pellets. Optionally, an eddy current separator can remove some metallic aluminum from the crushed black dross prior to pelletizing.

Compositions and methods for treating waste water produced by copper mining operations are described herein. Slag from steel making operations and other industrial waste materials that include alkali metal and/or alkaline earth elements have been found to both raise pH of the waste water and also reduce arsenic content. Following such treatment the spent slag or industrial waste can be utilized as a source of valuable metals or incorporated into stabilized building materials.

Compositions and methods for treating waste water produced by copper mining operations are described herein. Slag from steel making operations and other industrial waste materials that include alkali metal and/or alkaline earth elements have been found to both raise pH of the waste water and also reduce arsenic content. Following such treatment the spent slag or industrial waste can be utilized as a source of valuable metals or incorporated into stabilized building materials.

A process of extraction, quantification and recovery of additives in polypropylene with the stages of washing the plastic material (A), grinding the material (A) to a particle size from 10 to 500 microns, extraction where the material (A) is transferred to a column (1) and then such material successively passes through column (2), column (3) and column (4), respectively, for successive extractions with solvents (I), (II), (III) and (IV), packed column extraction, where the solvent with the additives obtained from each extraction in columns (1), (2), (3) and (4) passes through packed columns (1′), (2′), (3′) and (4′), respectively, crystallization of the additives obtained after each extraction stage in packed columns (1′), (2′), (3′) and (4′) respectively; and quantification of the additives obtained and where the residual material without additives is subjected to pyrolysis.

A process of extraction, quantification and recovery of additives in polypropylene with the stages of washing the plastic material (A), grinding the material (A) to a particle size from 10 to 500 microns, extraction where the material (A) is transferred to a column (1) and then such material successively passes through column (2), column (3) and column (4), respectively, for successive extractions with solvents (I), (II), (III) and (IV), packed column extraction, where the solvent with the additives obtained from each extraction in columns (1), (2), (3) and (4) passes through packed columns (1′), (2′), (3′) and (4′), respectively, crystallization of the additives obtained after each extraction stage in packed columns (1′), (2′), (3′) and (4′) respectively; and quantification of the additives obtained and where the residual material without additives is subjected to pyrolysis.

A process for recovering and upgrading unsaturated fluorinated hydrocarbons, comprises: a) providing a foam M1 consisting of pores containing a composition C1 comprising at least one unsaturated fluorinated hydrocarbon; b1) optionally grinding or compressing said foam M1 to form a ground foam or a compressed foam; b2) optionally recovering at least a portion of said composition C1; c) depolymerizing or dissolving said foam M1 provided in step a) or said ground or compressed foam obtained in step b1); d) recovering at least a portion of said composition C1 and optionally mixing the latter with said at least a portion of the composition recovered in step b2) to form a stream A comprising at least one unsaturated fluorinated hydrocarbon; e) recovering and separating said stream A into a plurality of streams of which at least one stream B1 comprises said at least one unsaturated fluorinated hydrocarbon.

A process for recovering and upgrading unsaturated fluorinated hydrocarbons, comprises: a) providing a foam M1 consisting of pores containing a composition C1 comprising at least one unsaturated fluorinated hydrocarbon; b1) optionally grinding or compressing said foam M1 to form a ground foam or a compressed foam; b2) optionally recovering at least a portion of said composition C1; c) depolymerizing or dissolving said foam M1 provided in step a) or said ground or compressed foam obtained in step b1); d) recovering at least a portion of said composition C1 and optionally mixing the latter with said at least a portion of the composition recovered in step b2) to form a stream A comprising at least one unsaturated fluorinated hydrocarbon; e) recovering and separating said stream A into a plurality of streams of which at least one stream B1 comprises said at least one unsaturated fluorinated hydrocarbon.