4 results about "Organonitrogen compounds" patented technology

An integrated waste gas treatment system includes an adsorption / desorption device that receives a waste gas that includes an organic compound and an organic nitrogen compound exhausted from a semiconductor manufacturing facility, where the adsorption / desorption device adsorbs the organic compound and the organic nitrogen compound and concentrates and desorbs the organic compound and the organic nitrogen compound, and a catalytic decomposition device disposed adjacent to the adsorption / desorption device, where the catalytic decomposition device includes a catalytic chamber that provides a gas passage through which a gas desorbed from the adsorption / desorption device flows and an oxidation-reduction catalyst disposed in the gas passage that removes the organic compound and the organic nitrogen compound from the desorbed gas. The organic compound and the organic nitrogen compound are subjected to an oxidation treatment by the oxidation-reduction catalyst, and nitrogen oxides generated by the oxidation treatment are removed by a selective reduction reaction.

A process for removing contaminants from coal-derived phenols is described. The process combines an extraction process with at least two adsorption zones containing adsorbents. Liquid-liquid extraction and acid-base extraction processes can be used. The adsorbents can be clays and / or zeolites. The process can be used to reduce organic nitrogen compounds and organic sulfur compounds to levels below 10 ppmw and produce a colorless product.

A mild and general method for tosyl protecting group removal from a protected organic nitrogen compound that is additionally suitable for use at commercial scale. A method for the removal of a tosyl protecting group from a protected organic nitrogen compound to form an unprotected nitrogen compound, including azabicyclo[3.1.0]hexane-6-carboxamide derivatives.

The present application relates to a kind of carbonyl sulfur hydrolysis catalyst, it includes carrier and active component, active component is organic nitrogen compound, organic nitrogen compound includes 1.0-3.0 weight% of pyridine nitrogen based on the total amount of carbonyl sulfur hydrolysis catalyst, carrier includes one or more of the following substances: Al2O3, mixture of Al2O3 and TiO2, mixture of Al2O3 and ZrO2;Active component content in the carbonyl sulfur hydrolysis catalyst is 5-30 weight%, carrier content is 70-95 weight%.The present application also relates to the preparation method of carbonyl sulfur hydrolysis catalyst and the method for removing carbonyl sulfur from material using the catalyst.The carbonyl sulfur hydrolysis catalyst has high activity, and also has very good stability, especially active component is not easy to lose, maintain high activity for a long time.