Method for wet leaching of nickel-ammonia solution from nickel-iron alloy and application
The invention belongs to the field of metallurgy, and discloses a method for wet leaching of a nickel-ammonia solution from a nickel-iron alloy and application. The method comprises the following steps: carrying out oxidizing roasting on a rough nickel-iron alloy, and then carrying out spray granula...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
17.08.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention belongs to the field of metallurgy, and discloses a method for wet leaching of a nickel-ammonia solution from a nickel-iron alloy and application. The method comprises the following steps: carrying out oxidizing roasting on a rough nickel-iron alloy, and then carrying out spray granulation to obtain nickel-iron oxide powder; adding the nickel-iron oxide powder into an alkaline solution, heating, carrying out ammonia leaching reaction, and filtering to obtain iron slag and leachate; and extracting the leachate, and removing oil from raffinate to obtain the nickel-ammonia solution. According to the method, the ferronickel is subjected to oxidizing roasting, spray granulation and normal-pressure ammonia leaching, so that the high-pressure leaching energy consumption is reduced, meanwhile, the obtained nickel-ammonia solution is directly used for ternary precursor synthesis, and an ammonium source needing to be introduced in the synthesis process is reduced.
本发明属于冶金领域,公开了一种镍铁合金湿法浸出镍氨溶液的方法和应用,该方法包括以下 |
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Bibliography: | Application Number: CN202110384320 |