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:
Aug. 12, 2025
Filed:
Jun. 30, 2023
PT Esg New Energy Material, Jakarta, ID;
PT Qmb New Energy Materials, Jakarta, ID;
Gem Co., Ltd., Shenzhen, CN;
PT Gem Indonesia New Energy Materials, Jakarta, ID;
Satryo Soemantri Brodjonegoro, Jakarta, ID;
Kaihua Xu, Shenzhen, CN;
Rizky Wanaldi, Jakarta, ID;
Andi Syaputra Hasibuan, Jakarta, ID;
Tegar Mukti Aji, Jakarta, ID;
Piyan Rahmadi, Jakarta, ID;
Emil Salim, Jakarta, ID;
Xiaodong Yan, Jakarta, ID;
PT ESG NEW ENERGY MATERIAL, Jakarta, ID;
PT QMB NEW ENERGY MATERIALS, Jakarta, ID;
GEM CO., LTD., Shenzhen, CN;
PT GEM INDONESIA NEW ENERGY MATERIALS, Jakarta, ID;
Abstract
A wastewater treatment process in the production of nickel cobalt hydroxide includes the following steps: S. subjecting a laterite nickel ore acid-leaching solution successively to iron-aluminum removal and nickel-cobalt precipitation to obtain wastewater; S. subjecting the wastewater successively to chromium ions, manganese ions, and silicon ion removal treatments to obtain a suspension; and S. reusing portion of the suspension and continuing iron-aluminum removal; subjecting the remaining suspension successively to homogenizing, alkali adjusting, standing still, CCD counter-current washing, and solid-liquid separation to obtain a supernatant and a residue phase, collecting the residue phase, and discharging the supernatant after neutralization. This method used to treat the laterite nickel ore wastewater can meet the discharge standard, with high safety.