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Preparation method of pb oxide nanopowder for recycling and manufacturing of lead-acid batteries

A nano-powder, oxide technology, applied in battery recycling, lead oxide, nanotechnology and other directions, can solve the problem of unsuitable lead-acid battery recycling and manufacturing process, inconsistent manufacturing process requirements, difficult commercial production and application, etc. problems, to achieve the effect of shortening the production cycle, simplifying the process and related logistics steps, and reducing production costs

Active Publication Date: 2017-08-08
杨春晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent No. is 02100264.9 (authorized announcement number CN 1171797C) invention patent also discloses a kind of method of synthesizing α, β type lead dioxide nanocrystal and trilead tetraoxide nanocrystal, but the prepared Pb oxide is different from existing Mature lead-acid battery manufacturing process requirements do not meet
[0005] In the above method for preparing Pb oxide powder, either the process cost is too high, or it is not suitable for the recovery and manufacturing process of the existing lead-acid battery, and it is difficult to be applied in commercial production.

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  • Preparation method of pb oxide nanopowder for recycling and manufacturing of lead-acid batteries

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Embodiment 1

[0032] The preparation method of the Pb oxide nano-powder that is used for lead-acid storage battery recovery and manufacture of the present invention, its schematic flow sheet, as shown in the accompanying drawings of description, its steps comprise:

[0033] (1) Place 0.1kg (0.308mol) of lead acetate in 0.9kg of water, then pass 0.136kg (3.08mol) of CO into the water 2 To form a carbonic acid solution, react with lead acetate at the same time to generate a precipitate, the reaction is carried out at room temperature, the reaction time is controlled until no precipitation continues to occur, and precipitate A is generated;

[0034] In addition, the above-mentioned 1kg lead acetate solution was also prepared, and 0.02kg (0.0308mol) of surfactant Triton X-100 was added thereto, and then the same CO 2 The operation, and the reaction system was supplemented with 30s ultrasound at intervals of 2 minutes during the process, resulting in precipitate B;

[0035] (2) Filter the above...

Embodiment 2

[0037] The preparation method of the Pb oxide nanopowder that is used for lead-acid storage battery recovery and manufacture of the present invention, its steps comprise:

[0038] (1) Mix 0.1kg of lead sulfate (0.33mol) with 1 liter of Na with a concentration of 1.65mol / L 2 CO 3 The aqueous solution is reacted, and the solution is removed after the reaction, and then the precipitate is mixed with 1 liter of Na with a concentration of 1.65mol / L 2 CO 3 The aqueous solution is reacted, so repeated 200 times, that is, 0.1kg of lead sulfate (0.33mol) is mixed with 333mol of Na in total 2 CO 3 Interact, fully remove sulfur, and obtain precipitate A;

[0039] In addition, the same preparation of the above Na 2 CO 3 solution, and 0.007kg (0.0165mol) of surfactant Tween-80 was added thereto, and then the same repeated operation was performed, and the reaction system was supplemented with 30s ultrasound during the interaction (reaction). 2 CO 3 In addition to the interaction, 0....

Embodiment 3

[0042] The preparation method of the Pb oxide nanopowder that is used for lead-acid storage battery recovery and manufacture of the present invention, its steps comprise:

[0043] (1) Place 0.1kg (0.303mol) of lead nitrate in 3kg of water, and then continuously feed 13.33kg (303mol) of CO into the water 2 To form a carbonic acid solution, react with lead nitrate at the same time to generate a precipitate, the reaction is carried out at room temperature, the reaction time is controlled until no precipitation continues to occur, and precipitate A is generated;

[0044] In addition, prepare above-mentioned 0.1kg (0.302mol) lead nitrate solution equally, and add the surfactant lauric acid of 3.02mol (0.6kg) wherein (or it and a certain amount, such as 1kg, ethanol solvent add together), stir simultaneously The reaction system was supplemented with ultrasound, and then the same CO 2 The operation produces precipitate B;

[0045] (2) Filter the above solution or / and oily liquid to...

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Abstract

The invention discloses a method for preparing Pb oxide nanopowder used in the recovery and manufacture of lead-acid batteries, comprising the steps of: (1) lead salt or lead paste of waste lead-acid batteries and organic compounds capable of complexing Pb atoms / ions; or inorganic compounds to react to achieve desulfurization or re-acidification; (2) perform a treatment process of filtering, drying to remove water, and heating to decompose to obtain Pb oxide nanopowder. The invention makes the recycling and production process environment-friendly, low energy consumption, greatly reduces the production cost, shortens the production cycle at the same time, and makes the prepared Pb oxide powder more conducive to the improvement of the performance of the process product.

Description

technical field [0001] The invention relates to the preparation of a Pb (lead) oxide nanopowder, in particular to a method for preparing the Pb oxide nanopowder used in the recovery and manufacture of lead-acid storage batteries. Background technique [0002] Compared with other commercialized batteries, lead-acid batteries show good cycle characteristics. This is because lead, the main raw material for batteries, has been better recycled. The early methods of lead recovery mainly include earth-fire method, that is, using reverberatory furnace, blast furnace, etc. to smelt the lead paste of waste batteries. PbSO in general lead paste 4 Its content is more than 50%, its melting point is high, and the temperature of complete decomposition is above 1000°C [Yang Jiakuan. Research progress of waste lead-acid battery lead paste recycling technology [J]. Modern Chemical Industry, 2009, 29 (3)]. In order to overcome the high energy consumption of pyrotechnics, high pollution emis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G21/02C01G21/06H01M10/54B82Y40/00
CPCY02W30/84
Inventor 杨春晓徐志国
Owner 杨春晓
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