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Method for preparing babbitt alloy from residue containing silver of copper anode slime

A technology of babbitt alloy and copper anode slime, which is applied in the field of smelting-electrolysis-melting-casting to produce babbitt alloy, can solve the problems of accumulation of harmful impurity elements, increase of charge handling capacity, serious pollution, etc., and achieve improved recovery rate and low cost , the effect of short process

Inactive Publication Date: 2012-01-11
广东省资源综合利用研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only increases the processing capacity of the charge, but also easily causes the accumulation of harmful impurity elements; 2. It is temporarily piled up and becomes sluggish material, which is reserved for further development and utilization; 3. The extraction of a single metal is not only a waste of resources, but also causes serious pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Divide 500g of silver slag, containing 24.07% of lead, 26.34% of tin, 11.57% of antimony, 1635.4 g / t of silver, and 217.1 g / t of gold, add 75g of sodium carbonate, 75g of carbon powder and 30g of borax, and mix well. The material was put into an intermediate frequency furnace for reduction smelting, and kept at a reduction temperature of 1200°C for 40 minutes to obtain 313 g of a crude alloy containing 38.14% lead, 40.89% tin, 18.27% antimony, 342.3g / t gold, and 2586.7g / t silver. Dissolve 102.2g of stannous oxide in 1343.7mL of fluorosilicic acid with a concentration of 387g / L, add 67.5g of lead fluorosilicate, 50.4g of potassium antimony tartrate, 1g of gelatin and 1g of acetophenone, and make the volume to 2L with distilled water. where [H 2 SiF 6 ] T =260 g / L, Pb 2+ Concentration 20 g / L, Sb 3+ Concentration 10 g / L, Sn 2+ and Sn 4+ The total concentration is 45g / L, gelatin 0.5 g / L, and acetaminophen 0.5 g / L. The crude alloy is cast into an anode plate, and a st...

Embodiment 2

[0019] Divide 500g of silver slag, containing 27.18% of lead, 20.31% of tin, 8.61% of antimony, 1276.3 g / t of silver, and 208.7 g / t of gold, add 100g of sodium carbonate, 100g of carbon powder and 10g of borax, and mix well. Put the material into an intermediate frequency furnace for reduction and smelting, and keep it at a reduction temperature of 1100°C for 30 minutes to obtain 47.65% lead, 34.43% tin,

[0020] Antimony 15.02% and gold 354.4g / t, silver 2201.9g / t crude alloy 284g. Dissolve 90.8g of stannous oxide in 1550.4mL of fluorosilicic acid with a concentration of 387g / L, add 101.1g of lead fluorosilicate, 25.2g of potassium antimony tartrate, 2g of gelatin, and 2g of acetaminophen, and make the volume to 2 L with distilled water . where [H 2 SiF 6 ] T =300 g / L, Pb 2+ Concentration 30 g / L, Sb 3+ Concentration 5.0 g / L, Sn 2+ with Sn 4+ The total concentration is 40 g / L, gelatin 1 g / L, and acetophenone 1 g / L. The crude alloy is cast into an anode plate, and a sta...

Embodiment 3

[0022] Divide 500g of silver slag, containing 26.61% lead, 25.08% tin, 6.97% antimony, 1576.1 g / t silver, and 224.6 g / t gold, add 75g sodium carbonate, 75g carbon powder and 40g borax, and mix well. The material was put into an intermediate frequency furnace for reduction smelting, and kept at a reduction temperature of 1300°C for 15 minutes to obtain 293g of a crude alloy containing 44.83% lead, 40.59% tin, 11.37% antimony, 373.1g / t gold, and 2635.4g / t silver. Dissolve 79.4g of stannous oxide in 1033.6mL of fluorosilicic acid with a concentration of 387g / L, add 50.6g of lead fluorosilicate, 40.3g of potassium antimony tartrate, 0.8g of gelatin, and 0.4g of acetophenone, and dilute to 2 L. where [H 2 SiF 6 ] T =200 g / L, Pb 2+ Concentration 15 g / L, Sb 3+ Concentration 8 g / L, Sn 2+ and Sn 4+ The total concentration is 35 g / L, gelatin 0.4 g / L, and acetophenone 0.2 g / L. The crude alloy is cast into an anode plate, and a stainless steel sheet with a thickness of 1.0mm and a...

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Abstract

The invention relates to a method for preparing a babbitt alloy from residue containing silver of copper anode slime. The method comprises the following steps:1, adding sodium carbonate, powdered carbon and borax according to the mass of the residue containing silver, and uniformly mixing; 2, melting to obtain a crude alloy containing lead; 3, preparing an electrolyte from fluosilicic acid, lead fluorosilicate, stannous oxide and potassium antimonyl tartrate, and adding with gelatin and ethyl naphthol; 4, treating the crude alloy as an anode and a stainless steel plate as a cathode, and taking the cathode plate (the stainless steel plate) and peeling cathode products each 12h; and 5, adding lead, antimony and copper or tin, antimony and copper to the cathode products, and melting to obtain the lead-based or tin-based babbitt alloy. The method which has the advantages of short flow, low cost, and strong practicality and allows the lead-based or tin-based babbitt alloy to be prepared from the residue containing silver of the copper anode slime is especially suitable for anode slime processing in electrolyzing electronic wastes with regenerated copper, and has the characteristics of simple and feasible operation, and high recovery rate of valuable metals.

Description

[0001] technical field [0002] The invention relates to a method for producing alloy by smelting-electrolysis-melting casting, in particular to a method for producing babbitt alloy by smelting-electrolysis-melting casting from silver slag separated from copper anode slime. technical background [0003] Babbitt alloy is a low-melting bearing alloy with hard particle phase distributed on a soft matrix. It has good friction reduction and wear resistance. It is the only material suitable for shaft rotation with relatively low hardness. It is widely used in large marine diesel engines , turbines, alternators and other mining machinery and large rotating machinery. According to different base metals, it is divided into lead-based and tin-based babbitt alloys. Lead-based babbitt alloys contain 1-20% antimony, 5-16% tin, 0-3% copper, and the balance is lead; tin-based babbitt alloys The alloy contains 4~15% antimony, 0~18% lead, 2~8% copper, and the balance is tin. The convention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00
CPCY02P10/20
Inventor 刘勇刘珍珍刘牡丹
Owner 广东省资源综合利用研究所
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