The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
Jul. 26, 2023
PT Qmb New Energy Materials, Jakarta, ID;
PT Esg New Energy Material, Jakarta, ID;
Gem Co., Ltd., Shenzhen, CN;
PT Gem Indonesia New Energy Materials, Jakarta, ID;
Kaihua Xu, Shenzhen, CN;
Satryo Soemantri Brodjonegoro, Jakarta, ID;
Guoquan Jin, Jakarta, ID;
Tegar Mukti Aji, Jakarta, ID;
Rizky Wanaldi, Jakarta, ID;
Andi Syaputra Hasibuan, Jakarta, ID;
Evan Wahyu Kristiyanto, Jakarta, ID;
Emil Salim, Jakarta, ID;
PT QMB NEW ENERGY MATERIALS, Jakarta, ID;
PT ESG NEW ENERGY MATERIAL, Jakarta, ID;
GEM CO., LTD., Shenzhen, CN;
PT GEM INDONESIA NEW ENERGY MATERIALS, Jakarta, ID;
Abstract
The disclosure discloses a method for preparing battery-grade nickel-cobalt-manganese sulfate crystals from low nickel matte, which includes the following steps: S, sequentially performing high-pressure leaching, iron-aluminum removal and nickel-cobalt-manganese precipitation treatment on laterite nickel ore to obtain an underflow containing nickel-cobalt-manganese hydroxide, wherein the pH value of the underflow is 7-8; S, performing oxygen-pressure leaching on the low nickel matte using sulfuric acid and oxygen to obtain a leached slurry containing residual acid, adding the underflow into the leached slurry to obtain a mixed slurry, and adjusting the pH value of the mixed slurry to be 3-5 using the underflow; and S, performing filter pressing on the mixed slurry to obtain filtrate and tailings, and performing nickel-cobalt-manganese co-extraction, concentration and crystallization on the filtrate to obtain the nickel-cobalt-manganese sulfate crystals. The method has the advantages of high utilization rate of nickel, cobalt and manganese, few impurities, reduced reagent consumption and technological processes, and high transportation efficiency.