Three-dimensional electrode filling material and preparation method thereof

A three-dimensional electrode, mass percentage technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as easy corrosion, easy hardening of fillers, short service life, etc., to prolong service life and improve ductility performance, and the effect of improving the utilization rate

Active Publication Date: 2015-12-30
ABA CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has the characteristics of high stability, corrosion resistance, high strength, high activity, no secondary pollution to water, and long service life. good plan

Method used

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  • Three-dimensional electrode filling material and preparation method thereof

Examples

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Embodiment 1

[0036] Put 200g of iron filings with a diameter of 0.5-2mm into 15% sodium hydroxide solution, heat at 60°C and ultrasonically treat for 40min, then filter to remove oil. The resulting solid was soaked in 10% dilute sulfuric acid for 30 minutes and then filtered to remove rust. The above-mentioned degreasing and derusting treatments are collectively referred to as activating iron filings. The activated iron filings were placed in 5% copper sulfate solution, heated and reacted at 60°C for 60 minutes, filtered, dried, and then calcined at 500°C for 4 hours without oxygen. Soak the cooled iron filings in the prepared 1000mL nickel-plating solution, heat (50°C) under ultrasonic conditions for nickel-plating for 40min, filter, wash with distilled water for 3 times, dry, and bake at 800°C for 4 hours without air to obtain Improved iron filings. Wherein the step of configuring the nickel plating solution comprises: preparing 500ml of 3% nickel sulfate solution, adding sodium citrat...

Embodiment 2

[0040]Put 200g of iron filings with a diameter of 0.5-2mm into 10% sodium hydroxide solution, heat at 60°C and ultrasonically treat for 40min, then filter to remove oil. The resulting solid was soaked in 10% dilute sulfuric acid for 30 minutes and then filtered to remove rust. The above-mentioned degreasing and derusting treatments are collectively referred to as activating iron filings. The activated iron filings were placed in 5% copper sulfate solution, heated and reacted at 60°C for 60 minutes, filtered, dried, and then calcined at 500°C for 4 hours without oxygen. Soak the cooled iron filings in the prepared 1000mL nickel plating solution, heat nickel plating at 50°C for 40min under ultrasonic conditions, filter, wash 3 times with distilled water, dry, and bake at 800°C for 4 hours without air to get improved Iron filings. Wherein the step of configuring nickel plating solution comprises: wherein the step of configuring nickel plating solution comprises: preparing 500ml...

Embodiment 3

[0044] Put 200g of iron filings with a diameter of 0.5-2mm into 10% sodium hydroxide solution, heat at 60°C and ultrasonically treat for 40min, then filter to remove oil. The resulting solid was soaked in 10% dilute sulfuric acid for 30 minutes and then filtered to remove rust. The above-mentioned degreasing and derusting treatments are collectively referred to as activating iron filings. The activated iron filings were placed in 5% copper sulfate solution, heated and reacted at 60°C for 60 minutes, filtered, dried, and then calcined at 500°C for 4 hours without oxygen. Soak the cooled iron filings in the prepared 1000mL nickel plating solution, heat the nickel plating at 40°C for 40min under ultrasonic conditions, filter, wash with distilled water for 3 times, dry, and bake at 700°C for 4 hours without air to get improved Iron filings. Wherein the step of configuring the nickel plating solution comprises: preparing 500ml of 5% nickel sulfate solution, adding sodium citrate ...

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Abstract

The invention discloses a three-dimensional electrode filling material and a preparation method thereof. The preparation method mainly comprises the following steps: subjecting iron filings to activation including oil removal and rust removal, copper plating and nickel plating so as to obtain improved iron filings; and uniformly mixing the improved iron filings obtained after nickel plating with powdery active carbon and mixed clay in proportion so as to prepare a granular filling material with a diameter of 5 to 10 mm, drying the granular filling material, sintering the granular filling material at 600 DEG C for 2 h under the condition of isolation of oxygen and then carrying out cooling so as to obtain the three-dimensional electrode filling material. The main characteristic of the three-dimensional electrode filling material is that the surfaces of the iron filings are plated with a stable nickel coating, which enables the service life of the iron-carbon filling material to be substantially prolonged. When the three-dimensional electrode filling material is used to treat waste water containing phenol, the degradation rate of phenol is more than 80%, and biodegradability of a water sample is greatly improved. When a recovered three-dimensional electrode filling material is repeatedly used, the degradation rate of phenol can also reach more than 60%, so waste water treatment cost is reduced.

Description

technical field [0001] The invention relates to an electrode filler, in particular to a three-dimensional electrode filler and a preparation method thereof. Background technique [0002] Phenol is an important chemical raw material and has a wide range of uses in the chemical industry. However, due to its carcinogenicity and mutagenicity, it is listed as a priority pollutant by the US EPA and my country. Therefore, any discharge of phenol-containing wastewater should be strictly controlled. The removal methods of phenol-containing wastewater and groundwater polluted by it include activated carbon adsorption, polymer resin adsorption, steam and air stripping, biodegradation and thermal destruction, etc. Although these methods have high removal efficiency, there are problems such as large energy consumption, high cost and low recovery efficiency. In recent years, three-dimensional electrolysis technology has increasingly become an important technology for industrial wastewat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/34
CPCC02F1/461
Inventor 许应玉罗德智李隽赵雪峰
Owner ABA CHEM CORP
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