The present invention is directed to methods of transferring urea from an aqueous solution comprising urea to a MXene composition, the method comprising contacting the aqueous solution comprising urea with the MXene composition for a time sufficient to form an intercalated MXene composition comprising urea.

The present invention is directed to methods of transferring urea from an aqueous solution comprising urea to a MXene composition, the method comprising contacting the aqueous solution comprising urea with the MXene composition for a time sufficient to form an intercalated MXene composition comprising urea.

The present invention relates to a method for producing a high-purity aqueous urea solution, utilizing a urea production process at least including a urea synthesis step of synthesizing urea from a raw material feed to produce a urea synthesis liquid, and a urea purification step of purifying the urea synthesis liquid to produce an aqueous urea solution with high urea concentration. The present invention includes a urea crystallization step of separating a part of the urea synthesis liquid and/or a part of the aqueous urea solution and crystallizing urea contained in the separated urea synthesis liquid and/or aqueous urea solution to produce solid crystal urea, and a mixing step of mixing the crystal urea with water to produce a high-purity aqueous urea solution. A high-purity aqueous urea solution to be produced is an aqueous urea solution with high purity suitable as a reducing agent for SCR.

Precipitation of an ammonium salt is prevented while suppressing an increase in water content of the aqueous urea solution which is to be supplied to a urea granulation step, when recovering and using urea and NH.sub.3 in a gas which contains urea dust and NH.sub.3 and which arises from a urea granulation step.

Precipitation of an ammonium salt is prevented while suppressing an increase in water content of the aqueous urea solution which is to be supplied to a urea granulation step, when recovering and using urea and NH.sub.3 in a gas which contains urea dust and NH.sub.3 and which arises from a urea granulation step.

The present disclosure discloses a biaryl urea RORt inhibitor, and specifically relates to a biaryl urea derivative, as represented by formula I, with an RORt inhibiting activity, and a preparation process thereof, and a pharmaceutical composition comprising the compound. Further disclosed is use of the compound for treating an RORt-related disease. ##STR00001##

The present disclosure discloses a biaryl urea RORt inhibitor, and specifically relates to a biaryl urea derivative, as represented by formula I, with an RORt inhibiting activity, and a preparation process thereof, and a pharmaceutical composition comprising the compound. Further disclosed is use of the compound for treating an RORt-related disease. ##STR00001##

The present disclosure discloses a biaryl urea RORt inhibitor, and specifically relates to a biaryl urea derivative, as represented by formula I, with an RORt inhibiting activity, and a preparation process thereof, and a pharmaceutical composition comprising the compound. Further disclosed is use of the compound for treating an RORt-related disease.

##STR00001##

The present disclosure discloses a biaryl urea RORt inhibitor, and specifically relates to a biaryl urea derivative, as represented by formula I, with an RORt inhibiting activity, and a preparation process thereof, and a pharmaceutical composition comprising the compound. Further disclosed is use of the compound for treating an RORt-related disease.

##STR00001##

The present invention discloses a biaryl urea RORt inhibitor, and specifically relates to a biaryl urea derivative, as represented by formula I, with an RORt inhibiting activity, and a preparation process thereof, and a pharmaceutical composition comprising the compound. Further disclosed is use of the compound for treating an RORt-related disease. ##STR00001##