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Desulphurization catalyst of sulfosalt of phthalocyanine iron cobalt, and preparation method

A technology of ammonium phthalocyanine iron cobalt 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 sulfur recovery rate.

Inactive Publication Date: 2007-10-10
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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  • Desulphurization catalyst of sulfosalt of phthalocyanine iron cobalt, and preparation method
  • Desulphurization catalyst of sulfosalt of phthalocyanine iron cobalt, and preparation method

Examples

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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

A phthalocyanin-iron-cobalt-ammonium sulfonate as the dsulfurizing catalyst with high catalytic activity and desulfurizing efficiency (more than 99%) is prepared through preparing the sulfonated chemical from phthalic anhydride as raw material and smoking sulfuric acid as sulfonating agent, preparing phthalocyanin-iron-cobalt- ammonium sulfonate from said sulfonated chemical, ammonium molybdate as catalyst, urea, cobalt chloride and iron salt, drying, and pulverizing.

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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IPC IPC(8): B01J31/22B01J31/28B01D53/14C07D487/22C07F15/02
Inventor 汪晓梅
Owner 汪晓梅
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