Process for treating textile waste

A process for treating a textile waste, said process comprising the following steps:

• a) mixing a textile waste in a first fluid medium under stirring at a temperature in the range of 40° C. to 120° C. for a time period in the range of 30 minutes to 240 minutes to obtain a first mixture comprising a first filtrate and first solids containing undissolved textile waste followed by separating to obtain a separated first filtrate and a separated first solids;
• and subjecting said separated first filtrate to a predetermined method to obtain nylon;
• b) optionally mixing said separated first solids in a second fluid medium under stirring at a temperature in the range of 40° C. to 120° C. for a time period in the range of 30 minutes to 240 minutes to obtain a second mixture comprising a second filtrate and second solids containing undissolved textile waste followed by separating to obtain a separated second filtrate and a separated second solids;
• and subjecting said separated second filtrate to a predetermined method to obtain spandex;
• c) depolymerizing said separated first solids or said separated second solids in a third fluid medium by using a nucleophilic agent at a temperature in the range of 170° C. to 200° C. for a time period in the range of 20 minutes to 150 minutes to obtain third mixture comprising a third filtrate and third solids containing undissolved textile waste followed by separating to obtain a separated third filtrate and a separated third solids;
• and subjecting said separated third filtrate to a predetermined method to obtain Bis(2-hydroxyethyl) terephthalate;
• and
• d) optionally treating said separated third solids in an aqueous acid solution at a temperature in the range of 30° C. to 80° C. for a time period in the range of 15 minutes to 240 minutes to obtain microcrystalline cellulose,
• wherein said first solids and said second solids are independently decolorized prior to or after depolymerization.