Production technique for red lead containing rare earth

A production process, the technology of red lead, applied in the direction of lead red, lead oxide, etc., can solve the problems of low formation efficiency, general stability, and general performance, and achieve the effect of high formation efficiency, good stability and simple formula

Inactive Publication Date: 2014-04-09
JIESHOU CITY JUNMA IND & TRADE
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  • Abstract
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AI Technical Summary

Problems solved by technology

It is sometimes used to relieve prickly heat, but it should be used with caution because it contains lead, which can easily cause lead poisoning
Red lead is also one of the important lead paste materials for the prod

Method used

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Embodiment Construction

[0010] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific examples.

[0011] A production process of red lead containing rare earth, comprising the following steps: (1) lead is melted at 670°C and then poured into cold water quickly to obtain soaked lead; (2) soaked lead is oxidized under an oxidation accelerator to obtain Lead hydroxide; (3) react with 4% acetic acid to produce lead acetate; (4) add rare earth elements to lead carbonate; (5) lead carbonate and rare earth elements are passed into carbon dioxide at room temperature to obtain lead carbonate precipitation; (6) ) Lead carbonate precipitate is filtered and fired at 470°C to make red lead. Rare earth elements include one or more of rare earth oxides, rare earth nitrates or rare earth organic compounds. Soaked lead is oxidized for 2 hours in the environment ...

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Abstract

The invention discloses a production technique for red lead containing rare earth, relating to the technical field of red lead production. The production technique is characterized by comprising the following steps: (1) melting lead at the temperature of 670DEG C and fast pouring into cold water to obtain lead foam; (2) oxidizing the foam lead to obtain lead hydroxide in the presence of an oxidization accelerator; (3) enabling the lead hydroxide to react with 4%-5% acetic acid to obtain lead acetate; (4) adding rare earth elements into lead carbonate; (5) introducing carbon dioxide in the lead carbonate and the rare earth elements at atmospheric temperature to obtain lead carbonate precipitate; and (6) filtering the lead carbonate precipitate and firing at the temperature of 470DEG C to obtain the red lead. The production technique is simple in formula, convenient to control, good in stability, high in formation efficiency, and capable of greatly increasing the early-stage capacity and prolonging the cycle life of a storage battery.

Description

Technical field: [0001] The invention relates to the technical field of red lead production, in particular to a rare earth-containing red lead production process. Background technique: [0002] Red lead is three lead tetroxide, also known as lead red. It is bright red powder at room temperature. After blending with oil, apply it on ironware to prevent rust. Sometimes it is used to relieve prickly heat, but it should be used with caution because it contains lead, which can easily cause lead poisoning. Red lead is also one of the important lead paste materials for the production of batteries. In the existing production of red lead, pure red lead is generally produced. The produced red lead has general performance and stability when used as battery lead paste materials. less efficient. Invention content: [0003] The technical problem to be solved by the present invention is to provide a rare earth-containing red lead production process with high stability and high conver...

Claims

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Application Information

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IPC IPC(8): C01G21/10
Inventor 朱管义张保兴房超彩
Owner JIESHOU CITY JUNMA IND & TRADE
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