Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Atomization preparation method of potassium ferrate

A technology of potassium ferrate and potassium hypochlorite, which is applied in the field of the atomization preparation method of potassium ferrate, can solve the problems of violent reaction process, insufficient utilization of raw materials, low conversion rate of iron source, etc., and achieves improved reaction efficiency and mild reaction conditions. , the effect of improving the purity

Active Publication Date: 2015-09-02
JINAN UNIVERSITY
View PDF33 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The complex process makes the wet method of preparing ferrate have strict requirements on the process conditions; the conversion rate of iron source is not high during the experiment, and the traditional method of preparing hypochlorite also has a relatively violent reaction process and insufficient utilization of raw materials and other shortcomings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation of potassium ferrate in this embodiment includes the following steps:

[0021] S1. Prepare a KOH solution with a concentration of 14mol / L, add 550g of calcium hypochlorite solids per liter; after full reaction, use 800 mesh filter cloth to suction and retain the filtrate;

[0022] S2. Add an equal volume of 14mol / L KOH solution to the filtrate to obtain a saturated potassium hypochlorite solution;

[0023] S3. Add 150g of hydrated ferric nitrate per liter of deionized aqueous solution at room temperature, and stir evenly with a magnetic stirrer to obtain a saturated ferric nitrate solution;

[0024] S4. The two saturated solutions obtained from S2 and S3 are respectively atomized with a jet atomizer and introduced into the high-pressure reactor, and chlorine gas is also introduced into the high-pressure reactor at the same time. The temperature of the reactor is maintained at 20°C for 90 minutes to obtain Potassium ferrate crystals;

[0025] S5. Wash potassium fe...

Embodiment 2

[0027] The preparation of potassium ferrate in this embodiment includes the following steps:

[0028] S1. Prepare a KOH solution with a concentration of 15mol / L, add 600g calcium hypochlorite solids per liter; after full reaction, use a 1000 mesh filter cloth to suction filter, and retain the filtrate;

[0029] S2. Add an equal volume of 15mol / L KOH solution to the filtrate to obtain a saturated potassium hypochlorite solution;

[0030] S3. Add 160g of hydrated ferric nitrate per liter of deionized aqueous solution at room temperature, and stir evenly with a magnetic stirrer to obtain a saturated ferric nitrate solution;

[0031] S4. Separately atomize the two saturated solutions with a non-ionic atomizer and introduce them into the high-pressure reactor, and introduce chlorine into the high-pressure reactor at the same time, and keep the reactor temperature at 25°C for 90 minutes to obtain potassium ferrate crystals;

[0032] S5. Wash potassium ferrate crystals with n-hexane and anhydr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of environment-friendly water treatment materials, particularly an atomization preparation method of potassium ferrate, which comprises the following steps: respectively atomizing an iron salt solution and a saturated potassium hypochlorite solution, introducing the atomized iron salt solution and saturated potassium hypochlorite solution into a high-pressure reactor together with chlorine, reacting at 5-35 DEG C to obtain a crystal, eluting and drying to obtain the potassium ferrate. The method has the advantages of simple raw material preparation and mild reaction conditions. Compared with the existing potassium ferrate preparation method, the method provided by the invention enhances the reaction efficiency and the product purity since the main reactants are in the atomization state in the preparation process. The purity of the obtained potassium ferrate is up to 99.0% above.

Description

technical field [0001] The invention relates to the technical field of environmental protection water treatment materials, in particular to an atomization preparation method of potassium ferrate. Background technique [0002] Potassium ferrate has been widely concerned in the field of water treatment because of its strong oxidizing properties. In aqueous solution, ferrate FeO 4 2- Existing in form, it is highly oxidizing, and its oxidation-reduction potentials are +2.20V and +0.72V under acidic and alkaline conditions, respectively. Potassium ferrate has the characteristics of integrating oxidation, adsorption, flocculation and coagulation aid. It is mainly used for industrial wastewater and urban domestic sewage treatment, and also for drinking water disinfection, which can quickly kill bacteria and viruses in water. Potassium ferrate is not only effective in use, but also does not cause harm to the human body during the application process. It is a new type of water trea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01G49/00
Inventor 曹刚黄郑郑罗恺李紫惠邵基伦
Owner JINAN UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com