Phthalocyanine iron cobalt sulphonate desulphurization catalyst and preparation method thereof

A technology of ammonium iron cobalt phthalocyanine sulfonate and desulfurization catalyst, which is applied in the field of fine chemical material preparation, can solve the problems of low desulfurization efficiency and low solubility, and achieve high desulfurization efficiency, high recovery rate, and high gas purification.

Inactive Publication Date: 2009-07-08
汪晓梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a desulfurization catalyst of ammonium iron cobalt phthalocyanine sulfonate, which has the characteristics of high catalytic activity, can remove organic sulfur and high sulfur, and has high desulfurization efficiency, and overcomes the low solubility and desulfurization efficiency of the existing synthesis method low problem

Method used

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  • Phthalocyanine iron cobalt sulphonate desulphurization catalyst and preparation method thereof
  • Phthalocyanine iron cobalt sulphonate desulphurization catalyst and preparation method thereof

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Embodiment 1

[0023] Get phthalic anhydride 1000g, vanadium pentoxide 1.3g, 25% oleum 2980g, put into the reactor and stir constantly, and when heating up to 30 DEG C, after stopping heating, the exothermic reaction begins to heat up naturally, After keeping the reaction for 3 hours, start heating to 235°C, keep the reaction at 235°C for 2-7 hours, then conduct sampling inspection, if it can be dissolved in water immediately, the reaction is over, add calcium oxide to neutralize the unreacted sulfuric acid, Cool down to 50°C and discharge, filter and neutralize with ammonia water to a pH value of about 6-7, and then concentrate to obtain a solid sulfonate. Weigh 1015g of sulfonate, 950g of urea, 54g of cobalt chloride, 23g of ferric chloride, and 3.7g of ammonium molybdate. Slowly raise the temperature, and keep stirring during the reaction to ensure uniform heating and mass transfer. When heated to 140-150°C When the temperature is further increased to 260°C, the reaction is maintained for...

Embodiment 2

[0025] Get phthalic anhydride 1000g, vanadium pentoxide 1.3g, 25% oleum 2980g, put into the reactor and stir constantly, and when heating up to 30 DEG C, after stopping heating, the exothermic reaction begins to heat up naturally, After keeping the reaction for 3 hours, start heating to 235°C, keep the reaction at 235°C for 2-7 hours, then conduct sampling inspection, if it can be dissolved in water immediately, the reaction is over, add calcium oxide to neutralize the unreacted sulfuric acid, Cool down to 50°C and discharge, filter and neutralize with ammonia water to a pH value of about 6-7, and then concentrate to obtain a solid sulfonate. Weigh 510g of sulfonate, 475g of urea, 27g of cobalt chloride, 12g of ferric chloride, and 1.8g of ammonium molybdate. Slowly raise the temperature, and keep stirring during the reaction to ensure uniform heat and mass transfer. When heated to 140-150°C When the temperature is further increased to 260°C, the reaction is maintained for 3 h...

Embodiment 4

[0027] Get phthalic anhydride 500g, vanadium pentoxide 0.5g, 25% oleum 1500g, put into reactor and constantly stir evenly, and when heating up to 30 ℃, after stopping heating, reaction exotherm begins to heat up naturally, After keeping the reaction for 3 hours, start heating to 235°C, keep the reaction at 235°C for 2-7 hours, then conduct sampling inspection, if it can be dissolved in water immediately, the reaction is over, add calcium oxide to neutralize the unreacted sulfuric acid, Cool down to 50°C and discharge, filter and neutralize with ammonia water to a pH value of about 6-7, and then concentrate to obtain a solid sulfonate. Weigh 765g of sulfonate, 710g of urea, 41g of cobalt chloride, 18g of ferric chloride, and 2.8g of ammonium molybdate. Slowly raise the temperature. Stir continuously during the reaction to ensure uniform heat and mass transfer. When heated to 140-150°C When the temperature is further increased to 260°C, the reaction is kept for 3 hours to form a...

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Abstract

The invention relates to an iron / cobalt phthalocyanine ammonium sulfonate desulfurization catalyst and a preparation method thereof, comprising steps of using phthalic anhydride as a raw material and fuming sulphuric acid as a sulfonating agent to prepare sulfonate, and then using ammonium molybdate as a catalyst, using sulfonate, cobalt chloride and ferric salt to synthesize Fe-Co phthalocyanine ammonium sulfonate, and then obtaining the inventive catalyst after drying and crushing the Fe-Co phthalocyanine ammonium sulfonate. Compared with currently used cobalt phthalocyanine catalyst, the iron / cobalt phthalocyanine ammonium sulfonate desulfurization catalyst has the advantages of high catalytic activity, capability of removing both organic sulphur and high sulphur, high desulfurization efficiency (more than 99%), low cost and simple processing technique, etc. The desulfurization catalyst can be widely applied to processes for desulfurizing and purifying various sulphur-bearing gases such as semi-water gas, natural gas, ammonia synthesis feed gas and coke oven gas, etc.

Description

technical field [0001] The invention discloses a phthalocyanine iron cobalt sulfonate desulfurization catalyst and a preparation method thereof, relates to an oxidative desulfurization catalyst, which can be widely used in various sulfur-containing gases such as semi-water gas, natural gas, raw material gas for synthetic ammonia, coke oven gas, etc. The desulfurization purification process belongs to the technical field of fine chemical material preparation. Background technique [0002] Wet oxidation desulfurization is a method of removing hydrogen sulfide and other sulfides in the gas in the liquid phase. It has been widely used in the desulfurization and purification process of various sulfur-containing gases such as natural gas, synthetic ammonia feed gas, coke oven gas, and coal gas. At present, there are many practical wet oxidative desulfurization methods, and the representative catalysts are cobalt phthalocyanines, including the use of cobalt phthalocyanine alone and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22B01J31/28C07F15/02C07F15/00C07D487/22C10K1/34C10L3/10
Inventor 汪晓梅
Owner 汪晓梅
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