The present disclosure provides methods and systems for introducing an activator to a polymerization reactor. The methods may include introducing liquid activator to a mixing vessel or an inline mixer and mixing aliphatic hydrocarbon solvent to form an activator solution which is introduced to a polymerization reactor. The systems may include a storage vessel, a mixing vessel or inline mixer configured to mix a liquid activator with a hydrocarbon solvent, and a polymerization reactor. The present disclosure also provides a process for producing a polyolefin. The process may include introducing liquid activator to an inline mixer and mixing an aliphatic hydrocarbon solvent with the liquid activator to form an activator solution. The process may include introducing the activator solution, a catalyst, and an olefin feed to a polymerization reactor.

The present disclosure provides methods and systems for introducing an activator to a polymerization reactor. The methods may include introducing liquid activator to a mixing vessel or an inline mixer and mixing aliphatic hydrocarbon solvent to form an activator solution which is introduced to a polymerization reactor. The systems may include a storage vessel, a mixing vessel or inline mixer configured to mix a liquid activator with a hydrocarbon solvent, and a polymerization reactor. The present disclosure also provides a process for producing a polyolefin. The process may include introducing liquid activator to an inline mixer and mixing an aliphatic hydrocarbon solvent with the liquid activator to form an activator solution. The process may include introducing the activator solution, a catalyst, and an olefin feed to a polymerization reactor.

A production system for insoluble sulfur includes a polymeric kettle having a first discharge port and a quench tower (200) having a feed port. The first discharge port is in communication with the feed port. The quench tower has a cylindrical housing, a granulation device and a shear pump. A solvent inlet and a quenching agent inlet, which are respectively used for providing a solvent and a quenching agent, are arranged on the side wall of the housing. The sulfur production method includes raising the temperature of liquid sulfur under the protection of an initiator and nitrogen to perform polymerization reaction; introducing the polymerized material into the quenching tower and sequentially carrying out granulation and quenching treatment; carrying out solvent curing and extraction integrated treatment on the quenched product; and carrying out liquid phase circulating crushing and extraction integrated treatment on the cured and extracted product.

A production system for insoluble sulfur includes a polymeric kettle having a first discharge port and a quench tower (200) having a feed port. The first discharge port is in communication with the feed port. The quench tower has a cylindrical housing, a granulation device and a shear pump. A solvent inlet and a quenching agent inlet, which are respectively used for providing a solvent and a quenching agent, are arranged on the side wall of the housing. The sulfur production method includes raising the temperature of liquid sulfur under the protection of an initiator and nitrogen to perform polymerization reaction; introducing the polymerized material into the quenching tower and sequentially carrying out granulation and quenching treatment; carrying out solvent curing and extraction integrated treatment on the quenched product; and carrying out liquid phase circulating crushing and extraction integrated treatment on the cured and extracted product.

The present disclosure provides Lazarev reactor that sustains reaction of two dimensional polymerization on the interface of two immiscible solutions A and B carrying components of reaction to the interface where reaction takes place and produces film of two dimensional polymer layers that are pulled out of reactor and rolled up on roll after drying excess of solvent out.

The present disclosure provides Lazarev reactor that sustains reaction of two dimensional polymerization on the interface of two immiscible solutions A and B carrying components of reaction to the interface where reaction takes place and produces film of two dimensional polymer layers that are pulled out of reactor and rolled up on roll after drying excess of solvent out.

Process for precipitating a mixed carbonate or mixed (oxy)hydroxide comprising nickel from an aqueous solution comprising a nickel salt, wherein such process is carried out in a vessel comprising (A) a vessel body, (B) one or more elements selected from draft tubes and guide vanes, (C) at least one stirrer whose pressure zone is in or between element(s) (B), and wherein the process comprises the step of simultaneously adding said solution comprising a nickel salt in or between element(s) (B) and a solution of alkali metal carbonate or hydroxide in or between or outside element(s) (B).

Process for precipitating a mixed carbonate or mixed (oxy)hydroxide comprising nickel from an aqueous solution comprising a nickel salt, wherein such process is carried out in a vessel comprising (A) a vessel body, (B) one or more elements selected from draft tubes and guide vanes, (C) at least one stirrer whose pressure zone is in or between element(s) (B), and wherein the process comprises the step of simultaneously adding said solution comprising a nickel salt in or between element(s) (B) and a solution of alkali metal carbonate or hydroxide in or between or outside element(s) (B).

A microfluidics-based nanoparticle synthesis system, a device and a synthesis method thereof are provided. The nanoparticle synthesis system comprises: a microfluidic chip; a reagent bottle which is connected with the microfluidic chip; and a flow control assembly comprising a pressure controller which is used for controlling the pressure in the reagent bottle. The system achieves high-accuracy flow control, and a microfluidic chip that can achieve high-efficiency and rapid mixing is also used in combination to finally achieve high-throughput and high-uniformity nanoparticle synthesis. A user may adjust the same instrument as required to achieve different throughputs without redesigning the instrument.

A microfluidics-based nanoparticle synthesis system, a device and a synthesis method thereof are provided. The nanoparticle synthesis system comprises: a microfluidic chip; a reagent bottle which is connected with the microfluidic chip; and a flow control assembly comprising a pressure controller which is used for controlling the pressure in the reagent bottle. The system achieves high-accuracy flow control, and a microfluidic chip that can achieve high-efficiency and rapid mixing is also used in combination to finally achieve high-throughput and high-uniformity nanoparticle synthesis. A user may adjust the same instrument as required to achieve different throughputs without redesigning the instrument.