The present invention relates to a method for downsizing, in particular shredding, of plastic material and removing dust from said downsized plastic material. The invention also relates to a method for solvent-based recycling a plastic material with an integrated step of addition of functional solid auxiliaries to the solution comprising the thermoplastic target polymer. The invention also relates to a method for plastic recycling with an integrated extraction step. The invention also relates to a method for removing solvents from suspensions or solutions comprising a dissolved thermoplastic target polymer. The invention also relates to a method for removing additives and/or impurities from a fluidized form comprising a thermoplastic target polymer while being processed in an extruder, wherein the fluidized form comprising a thermoplastic target polymer is subjected to a counter-stream of at least one extractant. It also relates to a plastic waste recycling system for recycling a target polymer.

Pre-treating a waste polyester material with dichloromethane (DCM) produces a purified polyester for reuse. The purified polyester can be recycled via any chemical or mechanical recycling process. Where the waste polyester material includes non-polyester contaminants, the DCM-treated polyester material produces a slurry that includes the DCM, a solid component that includes a polyester monomer product for reuse, and a waste liquid component where the non-polyester contaminants can be filtered from the top of the liquid component.

A method of producing a chemical pulp from 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 producing regenerated molded bodies from the chemical pulp based on the cellulosic fibers after mechanically separating and chemically separating.

A method for providing a treated cellulose-comprising starting material (110), in particular a starting material for forming a, in particular regenerated, cellulosic molded body (102) is described. The method comprises: i) supplying a cellulose-comprising starting material (101) which comprises cellulosic fibers, and treating (20) the cellulose-comprising starting material (101), to obtain the treated cellulose-comprising starting material (110), such that the cellulose fibers of the treated cellulose-comprising starting material (110) comprises a predetermined fiber length distribution. Furthermore, a method for manufacturing a cellulosic molded body (102), a treated cellulose-comprising starting material (110), and a use of used textiles are described.

Provided is a centrifugal field-flow fractionation device in which a liquid sample is less likely to leak from a channel and attachment and detachment work of a channel member is facilitated. By integrally forming an outer peripheral surface 162 and an inner peripheral surface 163 of a channel member 16, the channel member 16 is configured as one hollow member having a channel 161 formed inside. Thus, pressure resistance performance of the channel member 16 is improved, formation of a gap in the channel 161 can be prevented, and deterioration in sealing performance due to secular change is not generated. Accordingly, a liquid sample is less likely to leak from the channel 161. Further, since the channel member 16 can be handled as one member, attachment and detachment work of the channel member 16 is facilitated.

A centrifugal field-flow fractionation device 1 includes a rotation unit 10, a rotation sensor 41, a first vibration sensor 51, a second vibration sensor 52, and an imbalance amount calculation unit 312. When an imbalance occurs in the rotation unit 10, the imbalance amount calculation unit 312 calculates the imbalance amount, based on a detection signal from the rotation sensor 41, a detection signal from the first vibration sensor 51, and a detection signal from the second vibration sensor 52. That is, when an imbalance occurs in the rotation unit 10, the imbalance is calculated by the configuration in the centrifugal field-flow fractionation device 1.

A continuous liquefying system for thermochemical treatment of plastic that has two different devices and complements. The devices comprise a first device, a second device, and a coupling device. In the first device, filled with water, the plastic is feed using a screw in a first port. The first device is used as a water airlock. The plastic is extracted from the first device using the coupling device having a screw, and is sent to the second device. From the first device to the second device there is a lateral screen, responsible for the retention of water. The second device has tubes filled with a heating fluid, that actuates heating the plastic material. The plastic material is liquefied and could be sent to other applications, such as thermochemical processes, thermoforming, and others.

Materials such as poly(vinylidene fluoride) (PVDF) and lithium cobalt (III) oxide (LCO) are recovered and recycled from cathode films isolated from end-of-life batteries, including lithium-ion batteries. Cathode films are immersed in solution including N,N-dimethylformamide (DMF), N-methyl-2-pyrrolidine (NMP), a tetrahydrofuran (THF):NMP mixture, or a THF:DMF mixture. The solution is able to dissolve PVDF, which can then be separated from LCO and a conductive substrate component of the cathode films via alumina column separation. A PVDF product can be precipitated and recovered, while the LCO and conductive substrate can be recovered directly from the alumina column separator. Both the PVDF and LCO are of suitable quality for use in new cathode films. Such recovery is shown to be achievable even at low solid to liquid ratio during the dissolution process. Thus, economically feasible solvent-based recycling of battery cathodes is enabled to prolong the service life of cathode materials and reduce polymeric waste.

A method for deriving value from a mixed waste feedstock can include receiving a mixed waste feedstock including at least a reduced density biopolymer material and an organic feedstock. At least one of a fluid or a material that releases liquids during degradation is added to the mixed waste feedstock. The reduced density biopolymer material is separated, via density separation, from the mixed waste feedstock. The reduced density biopolymer material has a specific gravity below a specific gravity threshold. The reduced density biopolymer material separated from the mixed waste feedstock as a result of the separating is recovered.

A multi-tube pyrolysis system for waste plastic contains: a preparation system, a decomposition system, and a filtration system. The preparation system includes a collection module, a selection module, a crushing module, and a plastic extrusion module. The decomposition system includes a reaction furnace, a primary combustion chamber assembly, a secondary combustion chamber assembly, a cooling module, an oil storage tank, and a carbon storage tank. The reaction furnace includes multiple first delivery tubes, and the carbon storage tank has a water filtering module. The filtration system includes a heat exchanger, a rapid cooling device, and a cyclone separation module.