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

Preparation method for ultra pure silicon material used in solar energy photovoltaic industry

A solar photovoltaic, industrial technology, applied in the manufacture of final products, chemical instruments and methods, silicon compounds, etc., can solve the problems of restricting the development of high-tech industries and technological upgrading, and achieve the effect of improving application value and simple process

Active Publication Date: 2011-10-26
JIANGSU SHENGDA QUARTZ PROD CO LTD
View PDF6 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no mass production of ultra-pure silicon materials used in the domestic solar photovoltaic industry. If it cannot catch up with the world's advanced level, it will inevitably restrict the further development and technological upgrading of my country's high-tech industries.

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

[0022] Embodiment 1: Prepare ultrapure silicon material according to the following specific steps:

[0023] (1) Mineral processing: select quartz ore with a total content of aluminum, iron, calcium, magnesium, titanium, nickel, manganese, copper, lithium, sodium, potassium, and boron at 50ppm and a silica content of 99.95%; The mined mines are first observed directly with the naked eye, and then brought back for inspection, testing, testing, and re-inspection, and finally determine whether they can meet the requirements for use;

[0024] (2) Cleaning of quartz ore: Clean the selected quartz ore with water to remove useless soil and other mineral impurities as well as foreign objects during mining and transportation; the cleaning method is to flush the quartz ore with the tap, and the cleaning process Turn the quartz ore in the middle, easy to rinse;

[0025] (3) Primary selection: crush the cleaned quartz ore to obtain quartz blocks with a diameter of 5 cm, and remove mica, f...

Embodiment 2

[0038] Embodiment 2: prepare ultrapure silicon material according to the following specific steps:

[0039] (1) Mineral processing: select quartz ore with a total content of aluminum, iron, calcium, magnesium, titanium, nickel, manganese, copper, lithium, sodium, potassium, and boron at 50ppm and a silica content of 99.95%; The mined mines are first observed directly with the naked eye, and then brought back for inspection, testing, testing, and re-inspection, and finally determine whether they can meet the requirements for use;

[0040] (2) Cleaning of quartz ore: Clean the selected quartz ore with water to remove useless soil and other mineral impurities as well as foreign objects during mining and transportation; the cleaning method is to flush the quartz ore with the tap, and the cleaning process Turn the quartz ore in the middle, easy to rinse;

[0041] (3) Primary selection: crush the cleaned quartz ore to obtain quartz blocks with a diameter of 5 cm, and remove mica, fel...

Embodiment 3

[0054] Embodiment 3: prepare ultrapure silicon material according to the following specific steps:

[0055] (1) Mineral processing: select quartz ore with a total content of aluminum, iron, calcium, magnesium, titanium, nickel, manganese, copper, lithium, sodium, potassium, and boron at 50ppm and a silica content of 99.95%; The mined mines are first observed directly with the naked eye, and then brought back for inspection, testing, testing, and re-inspection, and finally determine whether they can meet the requirements for use;

[0056] (2) Cleaning of quartz ore: Clean the selected quartz ore with water to remove useless soil and other mineral impurities as well as foreign objects during mining and transportation; the cleaning method is to flush the quartz ore with the tap, and the cleaning process Turn the quartz ore in the middle, easy to rinse;

[0057] (3) Primary selection: crush the cleaned quartz ore to obtain quartz blocks with a diameter of 5 cm, and remove mica, f...

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 discloses a preparation method for an ultra pure silicon material used in solar energy photovoltaic industry. The method is characterized by comprising the steps of ore dressing, quartz ore cleaning, primary selection, first chemical treatment, secondary selection, first high temperature treatment, third selection, magnetic separation treatment, multielement chemical treatment, ultrasonic treatment, treatment with a flotation machine, high temperature chlorination treatment, centrifuge dewatering and drying, deshydroxy treatment and magnetic separation. The ultra pure silicon material prepared by the method provided in the invention can be used to fabricate solar energy photovoltaic products; therefore, developmental demands in domestic solar energy photovoltaic industry andother high and new technology industries are satisfied, and the passive situation that ultra pure silicon materials used in the solar energy photovoltaic industry are depended on import is changed.

Description

technical field [0001] The invention relates to a preparation method of an ultra-pure silicon material, in particular to a preparation method of an ultra-pure silicon material used in the solar photovoltaic industry. Background technique [0002] Ultra-pure silicon materials for solar photovoltaic industry are upstream materials in high-tech fields such as semiconductor electronics, optical fiber communications, special light sources, aerospace, and national defense. They support industries worth trillions of dollars. Ultra-pure silicon for solar photovoltaic products Materials have always been dependent on imports, which has severely restricted the rapid development and technological upgrading of my country's related high-tech industries. At present, the ultra-pure silicon materials used in the domestic solar photovoltaic industry have not yet been mass-produced. If they cannot catch up with the world's advanced level, it will inevitably restrict the further development and ...

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): C01B33/021H01L31/18
CPCY02P70/50
Inventor 段其九段玉伟谢大春
Owner JIANGSU SHENGDA QUARTZ PROD 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