The present specification relates to a compound represented by Chemical Formula 1, a composition for forming an optical film and an optical film comprising the same, and a display device comprising the optical film.

The present specification relates to a compound represented by Chemical Formula 1, a composition for forming an optical film and an optical film comprising the same, and a display device comprising the optical film.

The present disclosure provides a crystalline form of calcium D-glycerate of formula

##STR00001##

and a method for preparing the crystalline form of calcium D-glycerate of formula (I). The crystalline form may be characterized by having X-ray powder diffraction pattern (XRPD) diffraction peaks (2? degrees) at 12.9??0.2?, 20.9??0.2?, and 31.7??0.2?.

The present disclosure provides a crystalline form of calcium D-glycerate of formula

##STR00001##

and a method for preparing the crystalline form of calcium D-glycerate of formula (I). The crystalline form may be characterized by having X-ray powder diffraction pattern (XRPD) diffraction peaks (2? degrees) at 12.9??0.2?, 20.9??0.2?, and 31.7??0.2?.

Disclosed is a method of removing calcium from a hydrocarbon fraction using an extraction agent including 2-oxopropanal or derivatives thereof, the method including (S1) adding a hydrocarbon fraction with an extraction agent including 2-oxopropanal or derivatives thereof to give a mixture, (S2) converting an oil-soluble calcium compound into a water-soluble calcium compound by reacting the hydrocarbon fraction with the 2-oxopropanal or derivatives thereof, and (S3) removing the water-soluble calcium compound.

Disclosed is a method of removing calcium from a hydrocarbon fraction using an extraction agent including 2-oxopropanal or derivatives thereof, the method including (S1) adding a hydrocarbon fraction with an extraction agent including 2-oxopropanal or derivatives thereof to give a mixture, (S2) converting an oil-soluble calcium compound into a water-soluble calcium compound by reacting the hydrocarbon fraction with the 2-oxopropanal or derivatives thereof, and (S3) removing the water-soluble calcium compound.

A sorbent composition for the removal of boron and/or borates from a fluid such as an aqueous medium. The sorbent composition includes a base sorbent material having a high porosity and surface area, and a boron-selective agent. By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron and a relatively low cost is provided. The sorbent compositions are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs).

A sorbent composition for the removal of boron and/or borates from a fluid such as an aqueous medium. The sorbent composition includes a base sorbent material having a high porosity and surface area, and a boron-selective agent. By using a boron-selective agent in conjunction with a high surface area base sorbent material such as activated carbon or biochar, a sorbent composition with a high capacity for sequestering boron and a relatively low cost is provided. The sorbent compositions are particularly useful for the sequestration of boron from waste materials such as coal combustion residual leachate (CCRs).

The present invention provides compounds of Formula I and related compositions and methods.

The present invention provides compounds of Formula I and related compositions and methods.