A deposition system includes an isolator or fume hood and a reactor for coating particles, the reactor including a rotatable reactor assembly positioned within the isolator or fume hood and including a reactor drum configured to hold a plurality of particles to be coated, an inlet tube, and an outlet tube. The reactor drum is configured to be detached from the inlet tube and the outlet tube by an operator while the reactor drum remains within the isolator or fume hood.

A method for minimizing the amount of catalyst inactivating agent that is present in a liquid fraction recovered from a slurry-based polymer production process, the liquid fraction comprising diluent used in the polymer production process, is disclosed. The method includes steps for controlling the pressure over the liquid fraction collected during diluent recovery so as to minimize the concentration of catalyst inactivating agent that is retained in the recovered liquid fraction. Embodiments of apparatus suitable for conducting the disclosed method are also provided.

Methods of high throughput hydrocolloid bead production and related apparatuses are described herein. In the disclosed methods, drops of a hydrocolloid gel suspension are dropped into a reactant bath. The drops of hydrocolloid gel are exposed to the reactant bath for a predetermined period of time, during which the drops form firm or semi-firm beads. The beads are then removed from the reactant bath. The resulting hydrocolloid beads are advantageously resistant to syneresis and can provide high nutritional and water content.

Disclosed is a device for preparing multi-component metal hydroxide including a raw material feeder configured to feed raw materials including a metal raw material, a pH adjuster and a complexing agent, a reactor configured to react the raw materials fed from the raw material feeder to prepare a reaction solution and grow particles of multi-component metal hydroxide contained in the reaction solution, a storage tank configured to store the reaction solution transferred from the reactor, a first duct configured to transfer the raw materials from the raw material feeder to the reactor, a second duct configured to transfer the reaction solution from the reactor to the storage tank, a third duct configured to transfer the reaction solution from the storage tank to the reactor, and an operation controller configured to control operations of the reactor and the storage tank to circulate the reaction solution between the reactor and the storage tank until the particles of multi-component metal hydroxide grow to a target particle size.

A continuous synthesis system of urea, including: a reactor, a mixing buffer tank for accommodating a first raw material, a feeding pump for pumping the first raw material to the reactor, a pressure regulating valve connected to the reactor to transfer a second raw material and regulate a pressure of the second raw material, a first heat exchanger connected to the reactor to regulate a temperature inside the reactor to a first preset temperature, and a back pressure valve connected to an end of the reactor away from the feeding pump to maintain a pressure of the continuous synthesis system at a preset pressure. The second raw material is gaseous. The second raw material is fed to the reactor through the pressure regulating valve to react with the first raw material in the reactor to generate a target product.

A device for rapidly preparing β-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.

The present invention relates to a reaction method for forming a layered structure of immiscible liquid-phase concentric layers within a rotary reactor and a reaction system including the layered structure, and may provide a basis capable of efficiently performing a multistage reaction in terms of time and space.

In an etch process chamber, oscillators are positioned a predetermined distance away from an outer wall and coupled to a microwave generator. An inner wall of the process chamber on which particulates such as polymers adhere from the etch process is vibrated via operations of the oscillators. A gas flows into the cavity defined by the inner wall to collect the displaced particulates, which is then pumped out of the cavity to clean the process chamber. A controller identifies the polymer recipe used during the etch process and selects an oscillation program from memory. A microwave generator, controlled by the controller, is directed to generate microwaves at preselected frequencies determined from the program. The microwave frequencies are communicated to the oscillators, which then vibrate the inner wall at such received frequencies.

A feedstock gas, such as natural gas, is introduced into a mixing chamber. A combustible gas is introduced into a combustion chamber, for example simultaneously to the introduction of the feedstock gas. Thereafter, the combustible gas is ignited so as to cause the combustible gas to flow into the mixing chamber via one or more fluid flow paths between the combustion chamber and the mixing chamber, and to mix with the feedstock gas. The mixing of the combustible gas with the feedstock gas causes one or more products to be produced.

According to an embodiment, a method for preparing a sea urchin-shaped zinc oxide (ZnO) nanowire comprises preparing a mixture of a ZnO nano-powder and a graphite powder and irradiating the mixture, in a container, with a microwave.