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Preparation method of gamma-FeOOH catalyst and special device and application

A special device and catalyst technology, which is applied in the field of preparation of γ-FeOOH catalyst, can solve the problems of low content and complexity of γ-FeOOH, achieve the effect of reducing salt content and avoiding the generation of iron sludge

Pending Publication Date: 2017-08-18
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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Problems solved by technology

At present, the conditions and methods for preparing this type of iron oxyhydroxide are relatively complicated, because there are many iron hydroxides, including goethite, lepidocite, ferrihydrite, green iron ore, etc., mainly -FeOOH, the preparation The products are mainly α-FeOOH and β-FeOOH, and the content of γ-FeOOH is very small, and there is no high-purity γ-FeOOH on the market

Method used

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  • Preparation method of gamma-FeOOH catalyst and special device and application
  • Preparation method of gamma-FeOOH catalyst and special device and application
  • Preparation method of gamma-FeOOH catalyst and special device and application

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Embodiment Construction

[0037] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0038] In order to facilitate understanding of the design concept of the present invention, at first the experimental process of the present invention is described:

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Abstract

The invention relates to a preparation method of a gamma-FeOOH catalyst and a special device and an application. By employing a self-made gamma-FeOOH preparation device, optimization conditions of synthesizing high purity gamma-FeOOH is obtained by effectively controlling the dosages of N2 and O2 in a reaction process, investigating influence of factors, for example, the adding amount of phosphate, temperature and the like on shape and purity of gamma-FeOOH, and observing the shape characteristics and surface shape characteristics of gamma-FeOOH through XRD and SEM analysis. Therefore, the removal effect of iron ions in a water phase is investigated by employing gamma-FeOOH, thereby providing reliable scientific base data for an actual application.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a preparation method, a special device and application of a γ-FeOOH catalyst. Background technique [0002] Fenton Advanced Oxidation Technology Since the French scientist H.J.Fenton discovered Fe in 1894 2+ Can pass H 2 o 2 Since the oxidation of malic acid was effectively catalyzed, the Canadian scholar H.R.Eisenhaner successfully applied Fenton reagent to wastewater treatment. In the past ten years of research, Fenton reagent has been successfully applied to the treatment of various industrial wastewater. It is the most widely used and most mature technology in advanced wastewater treatment technology. Fenton technology has the advantages of simple operation, easy access to reactants, no complicated equipment, and environmental friendliness. It has been gradually applied to refractory biodegradable wastewater treatment projects such as pulp and paper, dyes, lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J19/24C02F1/72C01G49/02
CPCB01J19/24C01G49/02C02F1/725B01J23/745C01P2004/03C01P2002/88C01P2002/72
Inventor 王昶李荣张禛崔海军
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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