Method for utilizing ion implantation technology to modify serpentine

A technology of ion implantation and ion implanter, which is applied in the field of physical technology material modification to achieve the effect of changing performance and expanding applications

Inactive Publication Date: 2013-09-04
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] For the existing kaolin organic intercalation complex as a new mineral material, organic intercalation can make minerals have some special properties, thereby expanding the new uses of minerals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] Take a certain amount of serpentine sample, crush and ball mill to obtain serpentine powder with a particle size of less than 100 μm; weigh 50 g of serpentine powder sample, put it into the cavity of the ion implanter, and start vacuuming; Degree requirement is 1 x 10 -6 Torr.

[0015] Ionic form implanted NH 3 , the ion implantation energy is 30 keV; the implantation volume is 1×10 17 cm -2 ; Injection time is 5min. Finally, the ion-implanted sample was taken out from the cavity of the ion implanter to obtain a serpentine sample with "N" element inserted.

[0016] Phosphorus adsorption test:

[0017] The ion-implanted serpentine sample was used to adsorb phosphorus in phosphorus-containing wastewater; when the initial concentration of phosphorus in wastewater was 25mg / L, pH=6, the removal rate reached 99%. The phosphorus content in the wastewater is less than 0.5 mg / L, which has reached the first-level standard for the comprehensive discharge of wastewater in my...

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PUM

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Abstract

The invention relates to a method for utilizing ion implantation technology to modify serpentine, which belongs to the technical field of physical technology material modification. The method is characterized in that serpentine powder is placed in an ion implantation machine, a cavity of the ion implantation machine is vacuumized, and the vacuum degree requirement is 1*10-3-1*10-6Torr. NH3 is injected in ion mode, ion implantation energy is 30-60kev, implantation flux is 1*1017cm-2, and the implantation time is 3 to 20min. Finally samples where ion is implanted are taken out to obtain serpentine samples with N element implantation.

Description

technical field [0001] The invention relates to a method for modifying serpentine by ion implantation technology, and belongs to the technical field of physical technology material modification. Background technique [0002] my country is one of the big countries with serpentine resources, serpentine (Mg 3 [Si 2 o 3 ](OH) 4 or 3MgO·2SiO 2 2H 2 O) The resources are very rich, and the amount of mineral deposits is huge. The proven reserves in Anhui Province alone are more than 1 billion tons. my country's serpentine resources are widely distributed, with the largest reserves in Anhui, Jiangxi, Sichuan, and Henan, followed by Shandong, Jiangsu, Shaanxi, and Inner Mongolia. Because serpentine ore has leaf-like or phosphorus flaky crystals and large differentiation layers, it is open-pit mining in my country, and a large amount of crushed ore is produced during the mining process, with a particle size of <2-3cm, which is generally called serpentine powder or tailings. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/22
Inventor 朱萍周鸣王良有陈艳周劲
Owner SHANGHAI UNIV
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