Addend preparation method and process for wet oxidation-desulfurizing catalyst

A desulfurization catalyst and preparation method technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve product reaction kinetic defects, preparation process can not meet chemical The basic conditions of the reaction, the cost of unit consumption cannot be reduced, etc.

Inactive Publication Date: 2007-10-24
向松
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Problems solved by technology

[0002] Some common compound oxidative desulfurization catalysts used for wet desulfurization have the disadvantages that the preparation process is simple and cannot meet the basic conditions of the chemical reaction during the formulation process, resulting in the reaction kinetics defect of the obtained product, and the reaction time is long
At the same time, the limitations of the formula also make it impossible to further improve the production efficiency, the scope of application is limited, and it is time-consuming and labor-intensive, and the unit consumption cost cannot be reduced. These disadvantages are exactly what the present invention aims to overcome.

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  • Addend preparation method and process for wet oxidation-desulfurizing catalyst

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Embodiment Construction

[0006] The present invention is realized in such a way that phthalic anhydride and oleum are subjected to continuous dynamic sulfonation reaction at normal pressure and conditional temperature, and then neutralized with alkali solution to remove free acid, then neutralized with ammonia water, and subjected to constant temperature Concentrate and filter to obtain the ammonium sulfonate product; then mix the sulfonated component with the condensation component phthalic dianhydride, carbonamide, cobalt chloride, ammonium chloride, ammonium molybdate, and ammonium nitrate through continuous Stirring and dry mixing at elevated temperature, in the presence of compound components such as organic solvent cyclobutane and catalyst titanium tetrachloride, carry out liquefaction mixing, washing, neutralization and removal of impurities, and then the mixture is divided into equal parts and subjected to a second constant temperature Static condensation reaction to generate foamed cobalt phth...

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Abstract

The invention relates to the wet oxidation desulfurization, mainly made of ortho-phthalic anhydride, oleum, ortho-phthalic anhydride, dicarbonic diamide, cobalt chloride, amchlor, titanic chloride, adding or absorbing multi desulfurizer, Ca(OH)2, demineralized water, through dynamic normal pressure heating up and mixing, static constant temperature stratification and activating absorption, greatly shorten reaction cycle, getting rid of the uneven reaction temperature, uneven reaction stratification and degree, with the accelerant being solid particle or activated solution. It applies to wide range of fields, with percentage of desulfurization over 98%. It is particularly suitable for old process remodeling and improvement.

Description

technical field [0001] The invention relates to a preparation method and process of wet oxidation desulfurization catalyst, belonging to the technical field of desulfurization catalyst. Background technique [0002] Some common composite oxidative desulfurization catalysts used for wet desulfurization have the disadvantages that the preparation process is simple and cannot meet the basic conditions of the chemical reaction during the preparation process of the formula, resulting in reaction kinetic defects and long reaction time of the obtained product. Simultaneously, the limitation on the formula also prevents the production efficiency from being further improved, the application range is limited, and it takes time and labor, and the unit consumption cost cannot be reduced. These disadvantages are exactly what the present invention aims to overcome. Contents of the invention [0003] The formulation of the invention is based on five parts: sulfonation component, condensa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28B01J35/12B01D53/48
Inventor 向松向青
Owner 向松
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