Oriental Union Chemical Corp.

Yu-Chuan Hsu

Hsi-Chin Tsai

Chien-Chang Chiang

Hong-Ping Lin

Ying-Shih Chang

Pin-Hsuan Huang

Chia-Yao Tseng

Po-Sung Wu

A high-activity double-metal-cyanide catalyst, a method for fabricating the same, and applications of the same are disclosed. An organic complexing ligand, which is formed via mixing fatty alcohols and alicyclic carbonates, is used to generate a high-activity double-metal-cyanide catalyst. The high-activity double-metal-cyanide catalyst includes at least one double-metal-cyanide compound, at least one organic complexing ligand, and an optional functionalized compound. The double-metal-cyanide catalyst of the present invention has a higher activity than the conventional double-metal-cyanide catalysts. The polyols generated by the present invention has an insignificant amount of high-molecular-weight compounds.

Method for fabricating polyols

Method for fabricating a high-activity double-metal-cyanide catalyst

High-activity double-metal-cyanide catalyst

A method of using biopolymer to synthesize titanium-containing silicon oxide material and applications thereof are disclosed. The method comprises steps: mixing a titanium source, a silicon source, an acid source, a base source, a biopolymer and a solvent to form an aqueous solution, and letting the aqueous solution react to form a semi-product; performing aging, solid-liquid separation and drying of the semi-product to obtain a dried solid; and performing calcination or extraction of the dried solid to obtain a titanium-containing silicon oxide material with a high specific surface area. The present invention adopts a biopolymer as the templating agent, which makes the fabrication process of titanium-containing silicon oxide material more environment-friendly. After calcination or extraction, the product still has superior catalytic activity, able to catalyze epoxidation of olefins and favorable for the production of epoxide.

Method of using biopolymer to synthesize titanium-containing silicon oxide material and applications thereof

A method of using biopolymer to synthesize titanium-containing silicon oxide material and applications includes mixing a titanium source, a silicon source, an acid source, a base source, a biopolymer and a solvent to form an aqueous solution, and letting the aqueous solution react to form a semi-product; performing aging, solid-liquid separation and drying of the semi-product to obtain a dried solid; and performing calcination or extraction of the dried solid to obtain a titanium-containing silicon oxide material with a high specific surface area. The present invention adopts a biopolymer as the templating agent, which makes the fabrication process of titanium-containing silicon oxide material more environment-friendly. After calcination or extraction, the product still has superior catalytic activity, able to catalyze epoxidation of olefins and favorable for the production of epoxide.

The present invention discloses a method for fabricating a titanium-containing silicon oxide material with high thermal stability and applications of the same, wherein a titanium source, a silicon source, an alkaline source, a template molecule and a peroxide are formulated into an aqueous solution; the aqueous solution reacts to generate a solid product; the solid product is separated from the aqueous solution with a solid-liquid separation process and dried; the solid product is calcined to obtain a titanium-containing silicon oxide material with high specific surface area. The titanium-containing silicon oxide material fabricated by the present invention has high thermal stability. Therefore, it still possesses superior catalytic activity after calcination. The titanium-containing silicon oxide material can be used to catalyze epoxidation of olefin and is very useful in epoxide production.

Method for fabricating a titanium-containing silicon oxide material with high thermal stability and applications of the same

A method for fabricating a titanium-containing silicon oxide material and an application of the same are disclosed. The method needn't use a template but directly use an amorphous silicon dioxide and a titanium source as the reactants. The reactants are mixed with a solvent and react in the solvent. The suspension generated by the reaction is processed by solid-liquid separation, flushing and drying to obtain a titanium-containing silicon oxide material. The method features a simplified fabrication process and a low fabrication cost. The titanium-containing silicon oxide material fabricated by the method has a superior catalytic activity, able to catalyze an epoxidation reaction of an olefin-group compound to generate an epoxide.

Growing community of inventors

Kaohsiung, Taiwan

Yu-Chuan Hsu