Hanwha Solutions Corporation

Hanwha Chemical Corporation

Bong Sik Jeon

Wan Jae Myeong

Eui Geun Jung

Woo Jin Park

Yong Hee Lee

Sun Woo Yook

Jeong Kwon Kim

Ju Young Park

Eung Gyu Kim

Eun Byul Kwon

Pilje Seong

Keedo Han

Byung Hyo Kim

Kee Do Han

Ji Hye Choi

Seong Ho Park

No Hyun Lee

Sangho Seo

Dong Il Shin

Taeg Hwan Hyeon

Sang Ho Seo

The present invention relates to a nickel catalyst for a hydrogenation reaction and a manufacturing method therefor, and relates to a nickel catalyst added in a hydrogenation reaction for improving a color of a hydrocarbon resin. The catalyst according to the present invention has a small crystallite size and improves dispersibility, while having high nickel content, and thus can provide high activity in hydrogenation reactions.

Nickel catalyst for hydrogenation reaction and manufacturing method therefor

According to the present invention, when preparing a hydrogenation catalyst including nickel as an active ingredient, the reduction of nickel can be facilitated by using copper and sulfur as a promoter. In particular, the present invention can provide a catalyst which, while having a high nickel content, includes sulfur oxide and nickel oxide in a particular range, and thus exhibits even higher selective reduction degree for olefins while having high activity of the catalyst.

Catalyst for hydrogenation reaction and preparation method for same

The invention relates to a method for preparing hydrogenated petroleum resin. More specifically, the invention relates to a method for preparing hydrogenated petroleum resin having aromaticity of 10% or more and exhibiting excellent color and thermal stability, through a hydrogenation reaction in a slurry reactor, using a selective hydrogenation catalyst having excellent selectivity to olefinic double bonds in petroleum resin.

Preparation method of hydrogenated petroleum resin

The present invention relates to a catalyst for hydrogenation and a method for preparing the same, and more specifically, provides a catalyst having improved activity by including copper and copper oxide as a promoter when a hydrogenation catalyst including nickel is prepared by using a deposition-precipitation (DP) method. Accordingly, a catalyst having high activity may be provided in a hydrogenation process of a hydrocarbon resin.

Catalyst for hydrogenation and method for preparing same

Provided are a hydrogenation reaction catalyst and a preparation method therefor, and more particularly, to a hydrogenation reaction catalyst including sulfur as a promoter, thereby selectively hydrogenating an olefin by changing a relative hydrogenation rate of the olefin and an aromatic group during a hydrogenation reaction of an unsaturated hydrocarbon compound containing an aromatic group, and a preparation method therefor.

Hydrogenation reaction catalyst and preparation method therefor

The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution. Provided is a method for preparing a carbon-based precious metal-transition metal composite catalyst, wherein, in the carbon-based precious metal-transition metal composite catalyst, the precious metal is included in an amount of 10-20 parts by weight, and the transition metal is included in an amount of 10-20 parts by weight based on 100 parts by weight of the composite catalyst, and thus a total amount of the precious metal-transition metal is 20-40 parts by weight based on 100 parts by weight of the composite catalyst.

Carbon-based, precious metal-transition metal composite catalyst and preparation method therefor

Provided are a noble metal-transition metal complex catalyst supported on a carbon-coated silica-alumina support and a preparation method therefor, the catalyst being capable of obtaining a fast reaction rate and catalyst stability, as compared to a conventional catalyst, when cyclohexane dimethanol (CHDM) production is carried out by a cyclohexane dicarboxylic acid (CHDA) hydrogenation reaction in an aqueous solution by using a carbon-coated supported catalyst.

Noble metal-transition metal complex catalyst supported on carbon-coated silica-alumina support, and preparation method therefor

The present invention relates to a catalyst for a hydrocarbon resin hydrogenation reaction and a preparation method for the same, wherein the catalyst is a nickel powder catalyst including nickel (Ni), copper (Cu), and sulfur (S), and more particularly, a nickel-based catalyst for a hydrogenation reaction, which is added to a hydrogenation reaction in order to improve the color of the hydrocarbon resin. According to an embodiment of the present invention, provided is a catalyst for a hydrogenation reaction, includes 40-80 parts by weight of nickel, 0.01-5 parts by weight of copper, 1-10 parts by weight of sulfur, and 10-60 parts by weight of a silica support based on 100 parts by weight of the entire dried catalyst including a support. Therefore, the catalyst can improve the quality of hydrocarbon resin. Furthermore, the catalyst can provide colorless, odorless, and transparent water-white hydrocarbon resin with improved thermal stability by removing unsaturated bonds in the hydrocarbon resin.

Provided are a carbon-based noble metal-transition metal composite catalyst enabling high selective conversion of a carboxylic acid functional group into an alcohol functional group by pre-treating a carbon carrier including a predetermined ratio or more of mesopores, and a production method therefor.

Carbon-based noble metal-transition metal catalyst enabling high selective conversion and production method therefor

The invention relates to a method for selective hydrogenation. More specifically, it relates to a method for selective hydrogenation capable of improving selectivity and reaction efficiency in the hydrogenation process of petroleum resin.

Method for selective hydrogenation

The present disclosure relates to a method for measuring aromatic contents in a hydrocarbon solution. More specifically, it relates to a measurement method capable of quickly and accurately checking aromatic contents in a compound, particularly in a hydrocarbon, in a solution state without a high-temperature drying process.

Method for measuring aromatic contents in hydrocarbon solution

Provided are a preparation method of iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles, iron oxide-based nanoparticles prepared by the same, and a T1 contrast agent including the same. More particularly, the disclosure describes a method for preparation of iron oxide nanoparticles having a extremely small and uniform size of 4 nm or less based on thermal decomposition of iron oleate complex, iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles prepared by the same, and a T1 contrast agent including iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles.

Preparation of extremely small and uniform sized, iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles and MRI T1 contrast agents using the same

The present invention relates to a method for preparing uniform metal oxide nanoparticles. According to the preparation method of the present invention, it is possible to maintain the temperature and pressure inside the reactor in a stable and constant manner by removing water generated in the reaction step for forming metal oxide nanoparticles. Thus, the uniformity of nanoparticles formed is increased, and the reproducibility between batches can be increased even in a repeated process and and a large-scale reaction. Therefore, the preparation method of the present invention can be used to synthesize uniform nanoparticles reproducibly in large quantities.

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Daejeon, South Korea

Bong Sik Jeon