Patent · US Active

Method for efficiently preparing ferrate based on nascent interfacial activity

US10196279B2 · kind B2 · utility

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2References

2Claims

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Inventors

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

Key dates

Filing date	Jan 22, 2015
Grant date	Feb 5, 2019
Priority date	—
Expiry date	Mar 19, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC01G49/0036
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for efficiently preparing ferrate based on nascent state interfacial activity. The method is as follows: (a) preparing nascent iron solution; (b) adding an oxidizing agent to the iron solution of step (a); (c) adding alkali solution or alkali particles to the mixed solution of step (b), mixing by stirring, and carrying out solid-liquid separation; (d) adding a stabilizing agent to the liquid separated out in step (c), and thus obtaining ferrate solution. The yield is 78-98%. The prepared ferrate solution is stable and can be stored for 3-15 days.

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