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 invention relates to a metal by complex including the multilayer hydroxide structure of Chemical Formula 1, including a base layer, a surface layer and an active ingredient, a metal hydroxide complex manufactured by subjecting an active ingredient and a metal hydroxide structure precursor to coprecipitation through a precipitation reaction using an alcohol and water, and a method of manufacturing the same.

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.

Pulverulent compositions of a complex between an acid and a metal form an at least partially spherical particle. The acid is selected from 2-hydroxy-4-methyl-thiobutanoic acid (HMTBA), methionine, aspartic acid, the alginic acids, the pectinic acids, and the corresponding anions, in particular 2-hydroxy-4-methyl-thiobutanoate, methioninate, aspartate, the alginates and the pectinates. The metal is divalent or trivalent. The particle has an amorphous fraction the mass of which represents at least 50% of the total mass of the particle. The particle is substantially devoid of uncomplexed acid or anion and of uncomplexed metal or metal cation.

Pulverulent compositions of a complex between an acid and a metal form an at least partially spherical particle. The acid is selected from 2-hydroxy-4-methyl-thiobutanoic acid (HMTBA), methionine, aspartic acid, the alginic acids, the pectinic acids, and the corresponding anions, in particular 2-hydroxy-4-methyl-thiobutanoate, methioninate, aspartate, the alginates and the pectinates. The metal is divalent or trivalent. The particle has an amorphous fraction the mass of which represents at least 50% of the total mass of the particle. The particle is substantially devoid of uncomplexed acid or anion and of uncomplexed metal or metal cation.

Disclosed is a novel method of preparing highly pure calcobutrol using an intermediate (butrol) of gadobutrol without using highly pure gadobutrol. This method is capable of obtaining calcobutrol at high purity and high yield through a simple and environmentally friendly process, and thus can be easily applied to mass production.

The present invention relates to a metal phase transformation compound and a method for preparing the same.

The present disclosure relates to novel metal-organic frameworks (MOFs) comprising tetratopic linkers with small pore apertures. In certain aspects, the disclosure provides Zr-MOFs, non-limiting examples include Zr(bptc), Zr(abtc), and Zr(tptc-(Me).sub.2). The present disclosure further relates to methods of utilizing the MOFs of the disclosure to separate hydrocarbons through adsorptive processes. The present disclosure further relates to the discovery that Ca(H.sub.2tcpb) metal-organic framework (MOF) is capable of separating hydrocarbon isomers from one another through adsorptive processes. In one aspect, the disclosure provides a method of separating C5-C8 hydrocarbon isomers, such that straight chain, mono-branched, and/or multi-branched isomers are each separated from one another. This separation is achieved by taking advantage of the temperature dependent adsorptive properties of Ca(H.sub.2tcpb) MOF.