Preparing process for copper iron compound powder by waste cupric liquor
A composite powder and waste liquid technology, which is applied in the field of preparing copper-iron composite powder, can solve the problems of high cost, complicated waste liquid treatment process, complex process, etc., and achieve the effect of low production cost, low cost and strong operability
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Embodiment 1
[0035] Filter out the solid impurities in the electrolytic waste liquid, take 1000 liters of electrolytic waste liquid, the concentration of copper ions is 0.2mol / l, neutralize the pH value of the waste liquid with ammonia water to 6.5; add 6 liters of acetic acid to the treated waste liquid, and stir evenly , its pH value is 3.5; add 63kg in the solution, -200 purpose reduced iron powder (loose ratio is 2.35g / cm 3 ), stirring and reacting for 30 minutes, after precipitation, the supernatant was recovered for subsequent use, and the precipitated powder was washed with deionized water until there was no SO in the washing solution. 4 2- Then soak it in hot soapy liquid (containing 100g of soap) for 20 minutes, wash it, dehydrate it, dry and reduce it to powder, sieve it, pack it, and do anti-oxidation treatment. That is, 64.6kg of -200 mesh copper-iron composite powder was obtained, the copper content was 20.5%, and the loose ratio was 1.90g / cm 3 .
Embodiment 2
[0037] Filter out solid impurities in the etching solution such as printed circuit boards, take 2000 liters of electrolytic waste liquid, the concentration of copper ions is 0.35mol / l, and use ammonia water to neutralize the pH value of the acid solution to 6.0; add 35 liters to the waste liquid after treatment acetic acid, stir well, its pH value is 3.0; add 219kg in the solution, -200 purpose reduced iron powder (loose ratio is 2.5g / cm 3 ), stirred and reacted for 28 minutes, and the supernatant was recovered for subsequent use after precipitation, and the precipitated powder was washed with deionized water until there was no SO in the washing solution. 4 2-Wait for impurities to exist, then soak in hot soapy liquid (containing 250g of soap) for 20 minutes, after washing, dehydrate, dry and reduce the powder, finally sieve, pack, and perform anti-oxidation treatment. That is, 224kg of -200 mesh copper-iron composite powder is obtained, the copper content is 19.8%, and the l...
Embodiment 3
[0039] The copper-containing waste slag produced by the atomization pulverizing intermediate frequency furnace is treated with sulfuric acid to obtain the copper-containing waste liquid, filter out the solid impurities in the waste liquid, take 2000 liters, the copper ion concentration is 0.45mol / l, and neutralize the acid liquid with ammonia water pH value to 8; Add 40 liters of acetic acid in the treated waste liquid, stir well, and its pH value is 4.0; Add 281kg in the solution, -100 purpose reduced iron powder (loose ratio is 2.7g / cm 3 ), stirred and reacted for 25 minutes, and the supernatant was recovered for subsequent use after precipitation, and the precipitated powder was washed with deionized water until there was no SO in the washing solution. 4 2- Wait for impurities to exist, then soak in hot soapy liquid (containing 250g of soap) for 20 minutes, after washing, dehydrate, dry and reduce the powder, finally sieve, pack, and perform anti-oxidation treatment. That ...
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