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

Magnetic flocculant with aluminum salt loaded with ferroferric oxide and preparation method of magnetic flocculant

A technology of ferric oxide and magnetic flocculant, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, magnetic field/electric field water/sewage treatment, etc., can solve the problems of low adsorption capacity, difficult separation and recovery, etc. Achieve the effect of strong adsorption performance, advanced technology and short flocculation time

Inactive Publication Date: 2017-07-21
SCIMEE TECH & SCI CO LTD
View PDF11 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings such as low adsorption capacity and difficulty in separation and recovery of existing magnetic flocculants, and provide a magnetic flocculant with aluminum salt loaded ferric oxide

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

[0032] Specific steps are as follows:

[0033] (1) Add 100g of aluminum chloride and 500ml of water in sequence in the reactor, heat up to 65°C and stir at a stirring speed of 300rpm, after it is completely dissolved;

[0034] (2) Make 50g NaOH into a 2mg / l solution and slowly add it dropwise into the reactor, continue to heat up to 100°C after dropping, stir at constant temperature for 3 hours, and then pour the reaction solution into an ultrasonic cleaner;

[0035] (3) Add 4g of ferroferric oxide magnetic nanoparticles to 20g of 20% hydrochloric acid for acidification for 13 hours; filter out and put in an ultrasonic cleaning machine, the ultrasonic frequency is controlled at 80Hz, and pour out after mixing for 40 minutes , and after aging for 21 hours, the magnetic flocculant of ferric oxide loaded on aluminum salt was obtained.

[0036] Average particle size determination

[0037] For the average particle size, the aluminum salt-supported Fe prepared in Example 1 was obs...

Embodiment 2

[0043] Specific steps are as follows:

[0044] (1) Add 120g of aluminum sulfate and 500ml of water in sequence in the reactor, heat up to 60°C and stir at a stirring speed of 330rpm, after it is completely dissolved;

[0045] (2) Make 55g of NaOH into a 2 mg / l solution and slowly add it dropwise into the reactor, continue to heat up to 100°C after dropping, stir at constant temperature for 4 hours, and then pour the liquid into an ultrasonic cleaner;

[0046] (3) Add 4g of nano-ferroferric oxide magnetic particles to 20g of 20% hydrochloric acid for acidification for 14 hours; filter out and put it in an ultrasonic cleaning machine, the ultrasonic frequency is controlled at 75Hz, and pour it out after mixing for 45 minutes , and after aging for 22 hours, the magnetic flocculant of ferric oxide loaded on aluminum salt was obtained.

[0047] Using the method provided in Example 1, the powder properties of the aluminum salt-loaded ferric oxide magnetic flocculant obtained above ...

Embodiment 3

[0050] Specific steps are as follows:

[0051] (1) Add 110g of aluminum nitrate and 500ml of water successively in the reactor, heat up to 65°C and stir at a stirring speed of 350rpm, after it is completely dissolved;

[0052] (2) Make 60g of NaOH into a 2mg / l solution and slowly add it dropwise into the reactor, continue to heat up to 100°C after dropping, stir at constant temperature for 3 hours, and then pour the liquid into an ultrasonic cleaner;

[0053] (3) Add 2g of nano-ferroferric oxide magnetic particles to 20g of 20% hydrochloric acid for acidification for 13 hours; filter out and put it in an ultrasonic cleaning machine, the ultrasonic frequency is controlled at 80Hz, and pour it out after mixing for 50 minutes , and after aging for 20 hours, the magnetic flocculant of ferric oxide loaded on aluminum salt was obtained.

[0054] Using the method provided in Example 1, the powder properties of the magnetic flocculant of ferric oxide loaded on aluminum salt obtained ...

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

PropertyMeasurementUnit
concentrationaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a magnetic flocculant with aluminum salt loaded with ferroferric oxide. The magnetic flocculant is prepared by loading ferroferric oxide nanoparticles on aluminum salt. The invention further discloses a preparation method of the magnetic flocculant. The preparation method comprises the following steps: S1, adding aluminum salt and water into a reactor, and stirring till the aluminum salt is dissolved and sufficiently mixed; S2, adding NaOH, performing high-temperature polymerization reaction, and transferring a reaction solution into an ultrasonic cleaning machine; S3, adding ferroferric oxide nanoparticles into hydrochloric acid for acidizing treatment, filtering, adding into the ultrasonic cleaning machine of the step S2, performing ultrasonic treatment, and performing standing to age, thereby obtaining the magnetic flocculant. The magnetic flocculant disclosed by the invention has the advantages of being small in addition amount, short in flocculation time, good in flocculation property, small in pH value and temperature influence and the like as compared with a conventional flocculant, not only is a relatively large specific surface area maintained, but also a relatively good adsorption property is achieved, and the magnetic flocculant can be effectively separated and recycled after being used.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a magnetic flocculant with aluminum salt loaded ferric oxide. Background technique [0002] Magnetic separation is a technology that achieves material separation through the magnetic field attraction provided by a magnet. It belongs to the physical separation method and was developed in the United States in the early 1970s. It can quickly separate magnetic impurities in a mixture. The ultra-magnetic separation water purification technology is based on the magnetic separation technology, and the magnetic inoculation technology can make them magnetic. Suspended substances in water are generally non-magnetic. Micro-magnetic flocculation technology is to add magnetic seeds to the water to be treated, using the magnetic seeds as "coagulation nuclei", and adding coagulants and coagulants to make non-magnetic suspended substances and The magnetic seeds quickly condense into tiny ma...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/48
CPCC02F1/48C02F1/5236
Inventor 何嵩德黄光华肖波吕志国
Owner SCIMEE TECH & SCI CO LTD
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