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Equipment for preparing antimory oxide from PbSb alloy

A technology of antimony alloy and antimony white, which is applied in the direction of antimony compounds, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of antimony efficiency impact, limited surface area, total production cost, high energy consumption, etc., and achieve high production efficiency and low energy consumption. And the effect of low production cost and increased contact area

Inactive Publication Date: 2004-12-29
阎祖军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, since the oxidation of antimony is only carried out on the surface of the molten lead-antimony alloy melt, and the surface area of ​​the melt is limited, the efficiency of antimony oxidation is greatly affected, so that the production of antimony white by using this process The total cost and energy consumption are much higher than the process of directly producing antimony white from No. 2 antimony (pure antimony)

Method used

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  • Equipment for preparing antimory oxide from PbSb alloy
  • Equipment for preparing antimory oxide from PbSb alloy

Examples

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Effect test

Embodiment 1

[0012] The method for producing antimony white from the lead-antimony alloy of the present invention is realized in this way, including the process of removing impurities from primary or secondary lead-antimony mixed materials with a metallurgical furnace and the process of antimony oxidation into antimony white. The primary lead-antimony used is brittle Sulfur-lead-antimony ore, its special feature is that the process of antimony oxidation into antimony white is realized in this way. The lead-antimony alloy after impurity removal is put into the oxidation pot for heating and melting, and then the slag is removed to the lead through the slag removal port. The antimony melt has a clean surface, and then the primary air is blown into the lead-antimony melt, and the secondary air is introduced above the melt, and a large amount of volatile antimony and The liquid surface of the melt meets and undergoes an oxidation reaction to produce a large amount of antimony oxide. The air with...

Embodiment 2

[0022] On the basis of embodiment one, the composition of the impurity-removing lead-antimony alloy after the brittle pyro-lead-antimony ore is processed in a metallurgical furnace is as follows:

[0023] Elements: Pb Sb As Cu Ag

[0024] Content (%): 19.24 76.95 0.021 0.4 1.79Kg / T

[0025] When the content of antimony in the lead-antimony melt is less than 15% during the oxidation process, the crude lead is released from the discharge port and sent to electrolysis to carry out the next cycle.

[0026] Composition of antimony oxide obtained by bag dust collection:

[0027] Component: Sb 2 o 3 PbOAs 2 o 3 SeCrCuFeH 2 o

[0028] Content (%): 99.8 10.088 0.027 0.0005 0.0052 0.0008 0.0011 0.042

[0029] Components: tartaric acid insoluble matter whiteness (WR value) 325 mesh sieve residue average particle size

[0030] Content (%): 0.052 95.6 0.026 0.38

[0031] Crude lead composition:

[0032] Elements: PbSbAg

[0033] Content (%): 83.5 14.8 2.56Kg / T

Embodiment 3

[0035] On the basis of Example 1, the melt temperature is respectively 700°C-800°C, and the cathode slime produced by the electrolysis of the crude lead in Example 1 or Example 2 is reduced and smelted in a reverberatory furnace, and the high-silver lead after the impurity removal furnace is removed The composition of antimony alloy:

[0036] Elements: Pb Sb As Cu Ag

[0037] Content (%): 38.2 59.1 0.018 1.1 1.2Kg / T

[0038] When the content of antimony in the lead-antimony melt is less than 15% during the oxidation process, the crude lead is released from the discharge port and sent to electrolysis to carry out the next cycle.

[0039] Composition of antimony oxide obtained by bag dust collection:

[0040] Component: Sb 2 o 3 PbOAs 2 o 3 SeCrCuFeH 2 o

[0041] Content (%): 99.86 0.082 0.025 0.0006 0.0054 0.0008 0.0008 0.029

[0042] Components: tartaric acid insoluble matter whiteness (WR value) 325 mesh sieve residue average particle size

[0043] Content (%): ...

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Abstract

A process for preparing antimony oxide from PbSb alloy features that the molten PbSb alloy is stirred by a great deal of secondary air and the primary air introduced to said molten alloy to generate a lot of volatilized antimony, which contacts with the surface of molten alloy to generate oxidizing reaction, resulting in antimony oxide which are then separated out. Its advantages are high productivity and less energy consumption.

Description

Technical field: [0001] The invention relates to a metallurgical method and a device thereof, in particular to a manufacturing device of antimony white. Background technique: [0002] As disclosed in patent 97108157.3, the existing technology of producing antimony white with lead-antimony ore and lead-antimony mixture is the ore-lead-antimony alloy-antimony oxide process, which mainly uses air or oxygen to blow into the surface of the high-temperature molten lead-antimony alloy , the antimony on the surface of the molten lead-antimony alloy is oxidized to antimony oxide and the antimony oxide antimony white is taken away by air or oxygen, and then the antimony white in the air or oxygen is collected to obtain the finished antimony white. In this method, since the oxidation of antimony is only carried out on the surface of the molten lead-antimony alloy melt, and the surface area of ​​the melt is limited, the efficiency of antimony oxidation is greatly affected, so that the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G30/00C22B30/02
Inventor 阎祖军崔国安
Owner 阎祖军
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