硫酸镍煅烧的实验研究

doi:10.11962/1006-4990.2019-0530

Abstract

Abstract:

Nickel-based oxide was prepared by calcination of nickel sulfate,which can be used as raw material for preparation of NiO. With NiSO₄·6H₂O as raw material,the calcination process was analyzed by thermo-gravimetric and differential ther-mal analysis（TG-DTA） and the product was characterized by X-ray diffraction（XRD）.The results showed that the calcina-tion process of NiSO₄·6H₂O can be divided into three stages.The first stage（27~250 ℃） and the second stage（250~600 ℃） are the dehydration stage,and the third stage（600~900 ℃） is the decomposition stage.NiO was prepared from NiSO₄·6H₂O under the conditions as follows：calcination time was 30 min,calcination temperature was 850 ℃ and particle size was at 74~147 μm.

Key words: nickel sulfate, nickel oxide, calcination

CLC Number:

TQ138.13

Ma Yuwen,Kong Dexu,Wang Fei. Study on calcination of nickel sulfate[J]. Inorganic Chemicals Industry, 2020, 52(9): 32-33.

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Inorganic Acid-Base-Salt Committee of CIESC

Study on calcination of nickel sulfate

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