Patent · US Active

Preparation method for composite ferrate reagent

US9902624B2 · kind B2 · utility

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14Claims

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Inventors

Jun Ma · Jingwei, CN
Yulei Liu · Nanhu, CN
Lu Wang · Jingwei, CN
Xiaodan Zhao · Xi'an, CN
Qingliang Liu · Nanhu, CN

Key dates

Filing date	Apr 30, 2014
Grant date	Feb 27, 2018
Priority date	—
Expiry date	Apr 30, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01G49/0081
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A preparation method for a composite ferrate reagent. 1, Weigh raw materials; 2, evenly mix a ferric salt, an activating agent and an alkali maintaining agent and heat the mixture; 3, add an oxidant solution; and 4, cool and mix the solution with water. The technical problems of high energy consumption, low yield and poor ferrate product stability of the existing method for preparing ferrate are solved. The obtained product can be stably stored, and the yield of the ferrate reaches 60% to 95%.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.