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Method for preparing rare earth red lead by using red lead production process

A production process and technology of red dan, applied in lead dan, chemical industry, sustainable manufacturing/processing, etc., can solve the problem of high initial capacity of battery, achieve the effect of enhancing market competitiveness, reducing production cost of enterprises and saving energy

Inactive Publication Date: 2018-09-18
JIESHOU CITY JUNMA IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] ③The initial capacity of the battery is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0040] A method for preparing rare earth red lead using a red lead production process, the steps are as follows:

[0041] S1. Lead ingot melting and powder making: first put the lead ingot (electrolytic lead) into the lead melting furnace to make the lead liquid (lead water), and then inject it into the Pakistan machine powder furnace under negative pressure;

[0042] S2. Add metal lanthanum into the Pakistani powder furnace, the weight ratio of lead liquid to lanthanum is 100:2, stir at a rate of 120 revolutions per minute, without additional heating, use the residual temperature of the lead liquid, and the mixed lead liquid On the liquid surface, co-precipitation reaction occurs with oxygen in the air on the liquid surface to prepare lead oxide powder containing rare earth elements;

[0043] S3. Cooling and dust removal: The prepared lead oxide powder containing rare earth elements is continuously introduced into the bag filter through the induced draft fan through the conveying pi...

Embodiment 3

[0050] A method for preparing rare earth red lead using a red lead production process, the steps are as follows:

[0051] S1. Lead ingot melting and powder making: first put the lead ingot (electrolytic lead) into the lead melting furnace to make the lead liquid (lead water), and then inject it into the Pakistan machine powder furnace under negative pressure;

[0052] S2. Add metal cerium to the Pakistani powder furnace, the weight ratio of lead liquid to metal cerium is 100:2, stir at a rate of 120 revolutions per minute, without additional heating, use the residual temperature of the lead liquid to mix the lead The liquid surface, co-precipitation reaction with oxygen in the air on the liquid surface, to prepare lead oxide powder containing rare earth elements;

[0053] S3. Cooling and dust removal: The prepared lead oxide powder containing rare earth elements is continuously introduced into the bag filter through the induced draft fan through the conveying pipe, on the one hand, t...

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Abstract

A method for preparing rare earth red lead by using a red lead production process is characterized in that the method comprises the following steps: S1, lead ingot melting and powdering; S2, additionof a rare earth element into a Baji powdering furnace; S3, cooling and dust removal; S4, water process granulation; S5, screen separation; S6, calcination oxidation; S7, finished product inspection; and S8, finished product packaging. The method has the advantages of no environmental pollution or occupational hazards, energy saving and reduction of the production cost of enterprises, so the marketcompetitiveness of enterprise products is enhanced, and the technology makes the enterprises have great environmentally-friendly, ecological and economic benefits.

Description

Technical field [0001] The invention relates to the field of red lead production facilities, in particular to a method for preparing rare earth red lead using a red lead production process. Background technique [0002] At present, Hongdan products are mainly used in lead-acid batteries, medicines, paints and pigments, electronics and other fields. However, more than 98% of Hongdan products are used in lead-acid batteries. Hongdan products are used as the active part of the battery positive plate in lead-acid batteries. Substances, under normal circumstances, the red lead given the following reaction formula to transform into: [0003] β-PbO 2 : Pb 3 0 4 +H 2 SO 4 →β-Pb0 2 +2PbSO 4 +2H 2 O [0004] PbO 2 And Pb 3 0 4 The relationship is expressed by the following formula (wt%): Pb 3 0 4 %=2.8662×PbO 2 % [0005] Utilizing the high oxidation content of red lead to be used in lead-acid batteries, it has the functions of improving curing, shortening formation time, improving deep cycle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/16C01G21/10
CPCC01G21/10H01M4/16Y02E60/10Y02P20/10
Inventor 徐志强吴国庆龚卫国周春平朱可可
Owner JIESHOU CITY JUNMA IND & TRADE
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