An absorbent is provided, which is produced from component A, a foaming agent, and component B, a resin. Furthermore, a device and a method for producing the absorbent and a method for absorbing a liquid by means of the absorbent are provided.

An absorbent is provided, which is produced from component A, a foaming agent, and component B, a resin. Furthermore, a device and a method for producing the absorbent and a method for absorbing a liquid by means of the absorbent are provided.

Provided are a sparger including: a disc-shaped body; and a first hole and a second hole having different sizes from each other provided in the body, wherein a diameter of the second hole is smaller than a diameter of the first hole, and a reactor comprising the sparger.

Provided are a sparger including: a disc-shaped body; and a first hole and a second hole having different sizes from each other provided in the body, wherein a diameter of the second hole is smaller than a diameter of the first hole, and a reactor comprising the sparger.

The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first overhead stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; (G) passing the second overhead stream to a third fractionator; (H) withdrawing a third overhead stream and a third bottom stream from the third fractionator;
characterised in that at least a part of the third bottom stream is withdrawn as a purge stream.

The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first overhead stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; (G) passing the second overhead stream to a third fractionator; (H) withdrawing a third overhead stream and a third bottom stream from the third fractionator;
characterised in that at least a part of the third bottom stream is withdrawn as a purge stream.

A polymerization reactor for production of a super absorbent polymer including: a composition supply part for supplying a monomer composition solution; a central pipe connected to the composition supply part; a composition distribution part including a first connecting pipe that is obliquely connected to the central pipe at a first angle with respect to the central pipe; a pair of first branch pipes that are obliquely branched at a second angle with respect to the first connecting pipe; a conveyor belt located under the discharge port of the first branch pipe and on which the composition solution is deposited; and an energy supply part for supplying polymerization energy to the composition solution on the conveyor belt, wherein the first angle is an angle between the conveyor belt and the connecting pipe, and the second angle is an angle between the connecting pipe and each branch pipe.

A polymerization reactor for production of a super absorbent polymer including: a composition supply part for supplying a monomer composition solution; a central pipe connected to the composition supply part; a composition distribution part including a first connecting pipe that is obliquely connected to the central pipe at a first angle with respect to the central pipe; a pair of first branch pipes that are obliquely branched at a second angle with respect to the first connecting pipe; a conveyor belt located under the discharge port of the first branch pipe and on which the composition solution is deposited; and an energy supply part for supplying polymerization energy to the composition solution on the conveyor belt, wherein the first angle is an angle between the conveyor belt and the connecting pipe, and the second angle is an angle between the connecting pipe and each branch pipe.

According to an embodiment of the present invention, provided is a process for polymerizing molecular weight—adjustable polymer, comprising: a reactant supply step of supplying a gaseous monomer, a surfactant, and an initiator; a polymerization reaction step of performing a polymerization reaction in which the monomer, the surfactant, and the initiator participate; and a product discharging step of discharging the polymer compound produced by the polymerization reaction, wherein the flow rate of the supplied initiator is inversely proportional to the molecular weight of the polymer compound, and the molecular weight of the polymer compound produced by the polymerization reaction is adjusted by controlling the flow rate of the initiator.

According to an embodiment of the present invention, provided is a process for polymerizing molecular weight—adjustable polymer, comprising: a reactant supply step of supplying a gaseous monomer, a surfactant, and an initiator; a polymerization reaction step of performing a polymerization reaction in which the monomer, the surfactant, and the initiator participate; and a product discharging step of discharging the polymer compound produced by the polymerization reaction, wherein the flow rate of the supplied initiator is inversely proportional to the molecular weight of the polymer compound, and the molecular weight of the polymer compound produced by the polymerization reaction is adjusted by controlling the flow rate of the initiator.