The method of uniquely identifying a product for subsequent recycling Includes marking a surface of the product with a first trace signature being representative of the manufacturer of the product.

Method of recycling a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and the molded bodies are generated based on the cellulosic fibers after mechanically separating and chemically separating.

The present invention relates to a process for treating a plastic feedstock, comprising: a) a dissolution step involving placing the feedstock in contact with a dissolution solvent, at a dissolution temperature of between 100 C. and 300 C. and a dissolution pressure of between 1 and 20.0 MPa abs, the dissolution solvent having a boiling point of between 50 C. and 250 C., to obtain a crude polymer solution; b) a step of adsorption by placing the crude polymer solution in contact with an adsorbent, at a temperature of between 100 and 300 C. and a pressure of between 1.0 and 20.0 MPa abs, to obtain a refined polymer solution; and then c) a step of recovering the polymers, to obtain at least one solvent fraction and one purified polymer fraction.

The present invention relates to a process for treating a plastic feedstock comprising polymers, comprising: a) a dissolution step involving placing the plastic feedstock in contact with a dissolution solvent, at a dissolution temperature of between 100 C. and 300 C. and a dissolution pressure of between 1 and 20.0 MPa abs, to dissolve at least a portion of the polymers of the plastic feedstock and to obtain a crude polymer solution; b) a step of washing by placing the crude polymer solution in contact with a dense solution, at a temperature of between 100 C. and 300 C., a pressure of between 1 and 20.0 MPa abs and at a mass ratio between the dense solution and the crude polymer solution of between 0.05 and 20.0, to obtain a washed polymer solution and a washing effluent; and then c) a step of recovering the polymers, to obtain a solvent fraction and a purified polymer fraction. FIG. 1 to be published

A method for recycling of packaging material is disclosed. The packaging material comprises a multilayer material (10) comprising a metal layer (30) and at least one polymer layer (20, 40). The method comprises placing the packaging material in a vat (310) comprising a separation fluid (330) to produce a mixture of metal shreds from the metal layer (30), plastic shreds from the polymer layer (20, 40) and residual components. The separation fluid comprises a mixture comprising a mixture of water, a short-chained carboxylic acid, phosphoric acid and an alkali metal hydroxide solution.

The present invention relates to a process for obtaining a dialkyl phthalate and a reusable target PVC plastic from a PVC feedstock containing at least one phthalate, including: a) a solid-liquid extraction of said PVC feedstock in the form of particles by placing said particles of the PVC feedstock in contact with a solvent including at least one alcohol C.sub.nH.sub.2n+1OH with n<4 or n>8, to produce a liquid phase enriched in said phthalate and a solid phase including PVC plastic depleted in said phthalate; b) transformation of said phthalate of said liquid phase into dialkyl phthalate of formula C.sub.6H.sub.4(COOC.sub.nH.sub.2n+1).sub.2 by transesterification using said alcohol; c) a solid-liquid separation between the solid phase and the liquid phase to produce at least one solid stream including the PVC plastic depleted in said phthalate so as to obtain said target PVC plastic; d) a liquid-liquid separation of the liquid phase, to produce at least a first liquid effluent including said dialkyl phthalate and a second liquid effluent comprising said solvent.

The method of uniquely identifying a product for subsequent recycling includes marking a surface of the product with a first trace signature being representative of the manufacturer of the product.

The present invention comprises a method of shredding treated medical waste, cleaning it of all traces of biological gunk, and sorting it into separate components for recycling. To clean biological gunk from materials, all materials must be first shredded into small parts to expose the interior. The cleaning is performed by submerging the gunk coated materials into a caustic solution that breaks down and dissolves the gunk off of the materials. The caustic solution may comprise sodium hydroxide, potassium hydroxide, or a similar chemical, which is highly effective in producing a corrosive chemical that can break down blood, bone marrow, urine, unused medication, food waste, organs, tissues and any other biologic materials. After all of the biological material is removed from the cleaned materials, they are sorted into component materials, such as plastics, metals, rubbers, glass, etc.

A method of recycling a solar panel includes steps of removing a frame from the solar panel, delaminating a glass cover, silicon wafers and a plastic backing of the solar panel using a green solvent adapted to weaken, rather than dissolve, an adhesive used in lamination of the solar panel thereby generating a delaminated material stream, separating glass of the glass cover from the delaminated material stream, separating the plastic backing from the delaminated material stream thereby generating a concentrated metals stream, electrostatically separating insulator materials and electrically conducting materials from the concentrated metals stream thereby creating an insulator material stream and an electrically conducting material stream and separating silicon from other metals in the electrically conducting material stream.

A process for treating a plastic feedstock, including a dissolution step involving placing the plastic feedstock in contact with a dissolution solvent, at between 100 C. and 300 C. and pressure of between 1 and 20.0 MPa abs, to dissolve at least a portion of the polymers of the plastic feedstock and to obtain a crude polymer solution. Also, extraction by placing the crude polymer solution in contact with an extraction solvent, at between 100 C. and 300 C., a pressure between 1 and 20.0 MPa abs and at a mass ratio between the mass flow rate of the extraction solvent and the mass flow rate of the crude polymer solution between 0.05 and 20.0, to obtain an extracted polymer solution and a spent solvent. Furthermore, recovering the polymers to obtain a solvent fraction and a purified polymer fraction.