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Granular 13x molecular sieve/attapulgite loaded nano-iron-nickel material and preparation method thereof

A technology of attapulgite and molecular sieve, which is applied in chemical instruments and methods, other chemical processes, adsorption water/sewage treatment, etc., can solve the problems of poor selectivity of activated carbon, high price of activated carbon, high production cost of materials, etc. Settability, effect of good reduction performance

Inactive Publication Date: 2017-06-16
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high price of activated carbon, the production cost of the prepared material is high; the strength of activated carbon is not enough, it is easy to become powder, which reduces its sedimentation performance; the selectivity of activated carbon is poor, and it is highly targeted when dealing with pollutants

Method used

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  • Granular 13x molecular sieve/attapulgite loaded nano-iron-nickel material and preparation method thereof
  • Granular 13x molecular sieve/attapulgite loaded nano-iron-nickel material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A granular 13X molecular sieve / attapulgite loaded nano-iron-nickel material and a preparation method thereof. The preparation steps of this embodiment are:

[0029] Step 1, according to the mass ratio of 13X molecular sieve powder: attapulgite powder is 1: (0.25 ~ 1), mix 13X molecular sieve and attapulgite powder evenly, make 13X molecular sieve / attapulgite powder; then press 13X molecular sieve / attapulgite powder Attapulgite powder: the mass ratio of distilled water is 1: (1.4~1.5), add distilled water to 13X molecular sieve / attapulgite powder, stir evenly, make 13X molecular sieve / attapulgite mud; then mix 13X molecular sieve / attapulgite mud The soil mud is baked at a temperature of 90-95°C for 10-12 hours to obtain a 13X molecular sieve / attapulgite mud block.

[0030] Step 2. Break the 13X molecular sieve / attapulgite mud block obtained in step 1 and grind it to particles with a particle size of 0.45~0.9mm; then place the particles in a muffle furnace at a temperatu...

Embodiment 2

[0038] A granular 13X molecular sieve / attapulgite loaded nano-iron-nickel material and a preparation method thereof. The preparation steps of this embodiment are:

[0039]Step 1. According to the mass ratio of 13X molecular sieve powder: attapulgite powder is 1: (1~3), mix 13X molecular sieve and attapulgite powder evenly to obtain 13X molecular sieve / attapulgite powder; then press 13X molecular sieve / attapulgite powder Attapulgite powder: the mass ratio of distilled water is 1: (1.5~1.6), add distilled water to 13X molecular sieve / attapulgite powder, stir evenly, make 13X molecular sieve / attapulgite mud; then mix 13X molecular sieve / attapulgite mud The soil mud is baked at a temperature of 95-100°C for 9-10 hours to obtain a 13X molecular sieve / attapulgite mud block.

[0040] Step 2. Break the 13X molecular sieve / attapulgite mud block obtained in step 1 and grind it to particles with a particle size of 0.45~0.9mm; then place the particles in a muffle furnace at a temperature...

Embodiment 3

[0048] A granular 13X molecular sieve / attapulgite loaded nano-iron-nickel material and a preparation method thereof. The preparation steps of this embodiment are:

[0049] Step 1. According to the mass ratio of 13X molecular sieve powder: attapulgite powder is 1: (3~6, mix 13X molecular sieve and attapulgite powder evenly to obtain 13X molecular sieve / attapulgite powder; then press 13X molecular sieve / attapulgite powder Attapulgite powder: the mass ratio of distilled water is 1: (1.6~1.8), add distilled water to 13X molecular sieve / attapulgite powder, and stir evenly to obtain 13X molecular sieve / attapulgite mud; then mix 13X molecular sieve / attapulgite mud with The mud is dried at a temperature of 100-105°C for 8-9 hours to obtain 13X molecular sieve / attapulgite mud blocks.

[0050] Step 2. Break the 13X molecular sieve / attapulgite mud block obtained in step 1 and grind it to particles with a particle size of 0.45~0.9mm; then place the particles in a muffle furnace at a temp...

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Abstract

The invention relates to a particle-type 13X molecule sieve / attapulgite-loaded nanometer iron-nickel material and a preparation method thereof. According to the technical scheme, a 13X molecule sieve and attapulgite powder are evenly mixed, distilled water is added, and the mixture is stirred, dried and ground to obtain particle-type 13X molecule sieve / attapulgite; a ferric salt solution is prepared, wherein the Fe concentration of the ferric salt solution is 1-6 mol / L, and nickel salt is added into the ferric salt solution according to the mole ratio that n(Fe):n(Ni)=1:(0.2-9); the prepared iron-nickel salt mixed liquid and the particle-type 13X molecule sieve / attapulgite are placed into a reactor to be mixed, stand and be cooled through microwaves inside a microwave oven; microwave particle-type 13X molecule sieve / attapulgite obtained through cooling is placed into a reaction container where methanol solutions are loaded, and reducing agents are added for reaction for 1-2 h; flushing is performed, drying is performed inside a vacuum drier, and then the particle-type 13X molecule sieve / attapulgite-loaded nanometer iron-nickel material is obtained. The nanometer iron-nickel material has the advantages of being low in production cost, good in dispersity, excellent in adsorption performance and good in reducing performance.

Description

technical field [0001] The invention belongs to the technical field of nano iron-nickel materials. In particular, it relates to a granular 13X molecular sieve / attapulgite loaded nano-iron-nickel material and a preparation method thereof. Background technique [0002] Chlorinated organic compounds are a kind of common refractory and toxic organic pollutants. If the chlorinated organic compounds in the sewage are not up to the standard and discharged into the water body, it will seriously threaten the water ecological security and human life and health; heavy metal wastewater has rich Accumulative, it is difficult to degrade naturally in the environment, and it can also affect human health through the food chain. [0003] Zero-valent nano-iron is widely used in the treatment of chlorinated organics due to its ability to reduce and degrade chlorinated organics. However, zero-valent nano-iron particles are prone to agglomeration, resulting in reduced removal efficiency. The tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/18B01J20/30C02F1/28C02F101/36C02F101/20
Inventor 刘红程浪杨恩龚璇
Owner WUHAN UNIV OF SCI & TECH
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