Medium temperature iron-manganese desulfurizing agent and preparation method thereof

A desulfurizer, iron and manganese technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of inability to fundamentally improve the penetrating sulfur capacity of iron and manganese desulfurizers, unsatisfactory desulfurization effect, etc. The best desulfurization effect, the guarantee of mechanical strength, the effect of high penetration sulfur capacity

Inactive Publication Date: 2011-05-04
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] What the present invention aims to solve is the problem that the iron-manganese desulfurizer in the prior art adopts the consistent technology of adding an appropriate amount of additives, which cannot fundamentally improve the penetration sulfur cap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] Take 85g Fe 3 O 4 , 10g MnO 2 , 5g bentonite, mix the above-mentioned substances well, then add an appropriate amount of water to the above-mentioned mixture, stir the above-mentioned substances thoroughly, knead them, and then carry out extrusion molding.

[0025] The above-mentioned molded product was calcined at 300 ° C for 4.5 hours. 3 O 4 and MnO 2 Evenly distributed on it, together constitute the iron-manganese desulfurizer A of the present invention, and the iron oxide Fe in the desulfurizer is 3 O 4 The content is 85 wt %, the manganese oxide content is 10 wt %, and the inorganic binder content is 5 wt %.

Example Embodiment

[0026] Example 2

[0027] Take 77.9g iron oxyhydroxide FeOOH, 28.4g manganese carbonate MnCO 3 , 5g sheep liver soil and 5g cement, mix the above-mentioned substances fully, then add an appropriate amount of water to the above-mentioned mixture, fully stir the above-mentioned substances, knead and extrude them.

[0028] The above-mentioned molded product is placed in the environment of 350 ° C and calcined for 5 hours. After calcination, FeOOH in the raw material is converted into Fe. 2 O 3 , MnCO3 Conversion to MnO and MnO 2 , the calcination of sheep liver soil and cement makes its structure as a support carrier more dense, and the resulting Fe 2 O 3 and MnO 2 Evenly distributed on it, together constitute the iron-manganese desulfurizer B of the present invention, and the iron oxide Fe in the desulfurizer is 2 O 3 The content is about 70 wt %, the manganese oxide content is about 20 wt %, and the inorganic binder content is 10 wt %.

Example Embodiment

[0029] Example 3

[0030] Take 50g Fe 2 O 3 , 49g MnCO 3 , 15g attapulgite, mix the above-mentioned substances well, then add an appropriate amount of water to the above-mentioned mixture, fully stir the above-mentioned substances, knead them and then carry out extrusion molding.

[0031] The above-mentioned molded product was calcined at 400 ° C for 4 hours. After calcination, the MnCO in the raw material was calcined. 3 Conversion to MnO and MnO 2 , the structure of attapulgite as a support carrier becomes denser after calcination, Fe 2 O 3 , MnO and MnO 2 Evenly distributed on it, together constitute the iron-manganese desulfurizer C of the present invention, and the iron oxide Fe in the desulfurizer is 2 O 3 The content is about 50wt%, the manganese oxide content is 35wt%, and the inorganic binder content is 15wt%.

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Abstract

The invention relates to an iron-manganese desulfurizing agent. The desulfurizing agent consists of 10 to 85 weight percent of iron oxide, 10 to 85 weight percent of manganese oxide and 5 to 20 weight percent of inorganic adhesive. The invention further discloses a preparation method for the iron-manganese desulfurizing agent. The iron-manganese desulfurizing agent is prepared by extruding and molding with a dry method and roasting at a specific temperature. The iron-manganese desulfurizing agent prepared by using the preparation method has optimal desulfurizing effect and high penetrating sulfur capacity. The test shows that the penetrating sulfur capacity of the desulfurizing agent can reach 25.1 percent. Moreover, the desulfurizing agent has high mechanical strength, can be widely applied in a chemical refining and desulfurizing process, and can be prevented from being broken to cause loss and affect the desulfurizing effect; and the test shows that the mechanical strength of the iron-manganese desulfurizing agent can reach 100N/cm.

Description

technical field [0001] The invention relates to an iron-manganese desulfurizer, which belongs to the technical field of desulfurization and purification. Background technique [0002] Sulfides are produced in many occasions in industrial production. For example, in the production process of producing chemical raw materials from coal or petroleum, as well as in the wastewater or waste gas discharged from general industrial production. Among them, in the production process of producing chemical raw materials from coal or petroleum, the hydrogen sulfide produced is mainly due to the fact that the raw materials contain more sulfur-containing substances, which cause the sulfur-containing substances to react during the production process and release hydrogen sulfide. , which directly leads to the poisoning and deactivation of catalyst active substances in the subsequent production process. In addition, sulfides such as hydrogen sulfide and other sulfides contained in waste water...

Claims

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Application Information

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IPC IPC(8): B01D53/52
Inventor 汪祥胜吴志强苏利鹏
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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