a reactor for conducting laboratory reactions comprises includes reaction vessel, a catalyst holder in the reaction vessel, and a drive system configured to drive reciprocating linear movement of the catalyst basket. The catalyst holder can be configured to hold a plurality of catalyst particles so the catalyst particles remain spaced apart from one another. A reactor for conducting laboratory reactions can also include a reaction vessel, an impeller in the reaction vessel, and a drive system configured to drive reciprocating linear movement of the impeller.

Disclosed are a process and a system for treating contaminated soil. The process includes introducing a contaminated soil to an agitation unit. Ozone is supplied to the agitation unit thereby forming a soil-gas mixture, and the soil-gas mixture is agitated for sufficient time for the ozone to contact the contaminants thereby forming an ozone-treated soil and a residual gas-particulates mixture. The ozone-treated soil and the residual gas-particulates mixture are removed from the agitation unit. If necessary, remaining ozone is then flushed from the soil. The process occurs under negative pressure to prevent ozone from being released to the atmosphere.

Provided herein are methods, devices and systems for processing of carbonaceous compositions. The processing may include the manufacture (or synthesis) of oxidized forms of carbonaceous compositions and/or the manufacture (or synthesis) of reduced forms of oxidized carbonaceous compositions. Some embodiments provide methods, devices and systems for the manufacture (or synthesis) of graphite oxide from graphite and/or for the manufacture (or synthesis) of reduced graphite oxide from graphite oxide.

Disclosed are a process and a system for treating contaminated soil. The process includes introducing a contaminated soil to an agitation unit. Ozone is supplied to the agitation unit thereby forming a soil-gas mixture, and the soil-gas mixture is agitated for sufficient time for the ozone to contact the contaminants thereby forming an ozone-treated soil and a residual gas-particulates mixture. The ozone-treated soil and the residual gas-particulates mixture are removed from the agitation unit. If necessary, remaining ozone is then flushed from the soil. The process occurs under negative pressure to prevent ozone from being released to the atmosphere.

Provided herein are methods, devices and systems for processing of carbonaceous compositions. The processing may include the manufacture (or synthesis) of oxidized forms of carbonaceous compositions and/or the manufacture (or synthesis) of reduced forms of oxidized carbonaceous compositions. Some embodiments provide methods, devices and systems for the manufacture (or synthesis) of graphite oxide from graphite and/or for the manufacture (or synthesis) of reduced graphite oxide from graphite oxide.

A slurry treatment material containing solid particles mixed in liquid is finely pulverized, without using dispersion media, by flowing the treatment material into a vessel and through an annular fine gap formed between an inner wall of the vessel and an outer periphery face of a rotatable body mounted within the vessel. Rotation of the rotatable body subjects the treatment material to compression, expansion and shearing treatments. After passing through the annular fine gap, the treatment material flows into an ultrasonic chamber where it is irradiated with ultrasonic waves that break up and disintegrate agglomerated clumps of solid particles that may be present in the treatment material.

A system for the treatment of materials, to be selected from between materials in a fluid state (1) and particles suspended in a fluid material (1), comprising at least one upper kinematic pair equipped with two mechanical elements (2a, 2b; 2a, 2c), said kinematic pair being in contact with a material in a fluid state (1) or with particles suspended in a fluid material (1); motor means (5) to generate a pre-set relative velocity (v) between the elements (2a, 2b; 2a, 2c) of said kinematic pair, and tensioning means (8) to subject said kinematic pair to a pre-set pressure (P).

A method for producing devulcanized rubber and an apparatus (100) therefor. The method for producing devulcanized rubber comprises the steps of (1) providing vulcanized rubber particles with a pre-determined particle size and (2) devulcanizing the vulcanized rubber particles. The vulcanized rubber particles are devulcanized mechanically by impact forces and devulcanized chemically by a chemical composition. The impact forces break sulphur-sulphur and sulphur-carbon bonds of the vulcanized rubber particles causing surfaces of the rubber to become receptive in reacting with the chemical composition and the chemical composition renders the sulphur passive to prevent reattachment of the bonds, of which the chemical composition comprises at least one accelerator, at least one inorganic activator and at least one organic activator.

A method for producing devulcanized rubber and an apparatus (100) therefor. The method for producing devulcanized rubber comprises the steps of (1) providing vulcanized rubber particles with a pre-determined particle size and (2) devulcanizing the vulcanized rubber particles. The vulcanized rubber particles are devulcanized mechanically by impact forces and devulcanized chemically by a chemical composition. The impact forces break sulphur-sulphur and sulphur-carbon bonds of the vulcanized rubber particles causing surfaces of the rubber to become receptive in reacting with the chemical composition and the chemical composition renders the sulphur passive to prevent reattachment of the bonds, of which the chemical composition comprises at least one accelerator, at least one inorganic activator and at least one organic activator.

An apparatus for microwave assisted solid phase synthesis using solid-phase resin beads mixed with a liquid solvent comprising a generally cylindrical reactor made of microwave transparent material and having a central axis, the reactor having an inlet and an outlet; a porous frit associated with the outlet of the reactor, the porous frit preventing discharge of beads and allowing discharge of the solvent from the reactor; and means for concentric rotation of the reactor around the central axis in alternating clockwise and anti-clockwise directions. A method for microwave assisted solid phase synthesis using the apparatus is also disclosed.