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Refining slagging agent for zinc-based alloy smelting and preparation method thereof

A technology of slag-removing agent and alloy, which is applied in the field of refining slag-removing agent for zinc-based alloy smelting and its preparation, which can solve the problems of lower recovery rate of zinc alloy, slow reaction, poor separation of zinc and slag, etc., and achieve the reduction of zinc content Effect

Active Publication Date: 2018-03-23
ZHUZHOU CHUANGLIN ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The smelting temperature of zinc-based alloy is low, and the dross on the surface of the zinc liquid is sandwiched by a large amount of zinc liquid due to the low temperature. The general zinc slag removal agent is to add a certain amount of sodium nitrate. When the zinc liquid is added, the sodium nitrate decomposes to produce oxygen and zinc. Oxidation reaction is used to generate heat to increase the temperature of slag. Due to the low temperature of zinc smelting, the reaction is very slow, and the temperature does not increase much. The separation of zinc and slag is not good, and the effect of slag breaking is not good. The recovery rate decreases in zinc-based alloy smelting, the slag temperature is low, and the refining effect is not good. If the smelting temperature is increased, the burning loss will increase and the recovery rate of zinc alloy will decrease.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] Add 300 kg of sodium chloride, 300 kg of potassium chloride, 150 kg of calcium fluoride, and 240 kg of sodium sulfate into the heating mixer, turn on the heating power, set the heating temperature to 110°C, turn on the stirring power, after 50 minutes, turn off Heat the power supply, add 450 kg of sodium nitrate and 60 kg of charcoal powder, stir for 10 minutes, put the refined slag removal agent (secondary mixture) that has been dried and stirred evenly through a 20-mesh sieve, and put it into a holding tray, and cool it down to room temperature naturally , carry out hot-sealing packaging, each plastic bag is 2 kg, and then put it into a carton, and pack the carton, each carton is 20 kg.

example 2

[0028] Add 375 kg of sodium chloride, 225 kg of potassium chloride, 225 kg of calcium fluoride, and 270 kg of sodium sulfate into the heating mixer, turn on the heating power, set the heating temperature to 105°C, turn on the stirring power, and after 50 minutes, turn off Heat the power supply, add 360 kg of sodium nitrate and 45 kg of charcoal powder, stir for 10 minutes, put the refined slag removal agent (secondary mixture) that has been dried and stirred evenly through a 20-mesh sieve, and put it into a holding tray, and let it cool naturally to room temperature , carry out hot-sealing packaging, each plastic bag is 2 kg, and then put it into a carton, and pack the carton, each carton is 20 kg.

example 3

[0030] Add 330 kg of sodium chloride, 195 kg of potassium chloride, 210 kg of calcium fluoride, and 300 kg of sodium sulfate into the heating mixer, turn on the heating power, set the heating temperature to 95°C, turn on the stirring power, and turn it off after 50 minutes Heat the power supply, add 405 kg of sodium nitrate and 60 kg of charcoal powder, stir for 10 minutes, put the refined slag removal agent (secondary mixture) that has been dried and stirred evenly through a 20-mesh sieve, and put it into a holding pan, and let it cool naturally to room temperature , carry out hot-sealing packaging, each plastic bag is 2 kg, and then put it into a carton, and pack the carton, each carton is 20 kg.

[0031] The 20-mesh aperture=0.9mm, and the 80-mesh aperture=0.178mm.

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Abstract

The invention discloses a refining fluxing medium for zinc-based alloy smelting and a preparation method of the refining fluxing medium and aims at providing the refining fluxing medium for zinc-based alloy smelting and the preparation method of the refining fluxing medium. The refining fluxing medium is characterized by comprising the raw materials in parts by weight: 20-30 parts of sodium chloride, 10-20 parts of potassium chloride, 18-30 parts of sodium nitrate, 10-15 parts of calcium fluoride, 10-20 parts of sodium sulfate and 3-5 parts of charcoal powder and comprising the following steps of A, adding sodium chloride, potassium chloride, calcium fluoride and sodium sulfate into a heating stirrer according to the weight ratio, heating and stirring at the temperature of 95-110 DEG C for 50min, and then, stopping heating to form a uniformly dried primary mixture; B, adding 18-30 parts of sodium nitrate and 3-5 parts of charcoal powder into the uniformly dried primary mixture, and stirring for 10min in the heating stirrer to obtain a secondary mixture; and C, discharging the secondary mixture in the step B to a holding tray, naturally cooling to the room temperature, and subpackaging finished products into 2kg / bag and 20kg / box. The refining fluxing medium is mainly used for after-treatment of zinc-based alloy smelting.

Description

technical field [0001] The invention relates to a slagging agent and a preparation method thereof, in particular to a refining slagging agent for zinc-based alloy smelting and a preparation method thereof. Background technique [0002] The smelting temperature of zinc-based alloy is low, and the dross on the surface of the zinc liquid is sandwiched by a large amount of zinc liquid due to the low temperature. The general zinc slag removal agent is to add a certain amount of sodium nitrate. When the zinc liquid is added, the sodium nitrate decomposes to produce oxygen and zinc. Oxidation reaction is used to generate heat to increase the temperature of slag. Due to the low temperature of zinc smelting, the reaction is very slow, and the temperature does not increase much. The separation of zinc and slag is not good, and the effect of slag breaking is not good. The recovery rate in zinc-based alloy smelting is reduced, the slag temperature is low, and the refining effect is not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/06C22C18/00
CPCC22C1/06C22C18/00
Inventor 周林周立华
Owner ZHUZHOU CHUANGLIN ALLOY
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