CN201144153Y - Device for recovering SiCl4 in TiCl4 refining process - Google Patents
Device for recovering SiCl4 in TiCl4 refining process Download PDFInfo
- Publication number
- CN201144153Y CN201144153Y CNU2007201742767U CN200720174276U CN201144153Y CN 201144153 Y CN201144153 Y CN 201144153Y CN U2007201742767 U CNU2007201742767 U CN U2007201742767U CN 200720174276 U CN200720174276 U CN 200720174276U CN 201144153 Y CN201144153 Y CN 201144153Y
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- CN
- China
- Prior art keywords
- sicl
- condenser
- rectifying tower
- sicl4
- fractionate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Silicon Compounds (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A device for recovering SiCl 4 during a process to refine TiCl4 consists of a plurality of parts of a distillation kettle, a rectifying tower, a condenser, a collection tank and a reflux slot; each part is connected by pipelines; a heating element is arranged in the distillation kettle; the lower end is provided with a slag discharge opening; a material inlet, a discharge, a steam tube and a reflux tub are arranged on the rectifying tower; the device has a simple structure and a low manufacture cost; the effect of the extracted SiCl4 is good; the economic benefit is increased by recycling and utilizing wastes; besides, the pollution to the environment caused by the waste gas of SiCl4 is reduced.
Description
One, technical field
The utility model relates to refining TiCl
4Equipment, relate in particular to a kind of refining TiCl
4Reclaim SiCl in the process
4Device.
Two, background technology
In titanium sponge is produced, the thick TiCl of its raw material
4Generally contain: as SiCl
4, VOCl
3, FeCl
3, AlCl
3Etc. many impurity, must could satisfy the production requirement of titanium sponge through purifying.In the refining production process of crude titanic chloride, all can produce a large amount of SiCl
4, because SiCl
4Belong to highly toxic substance, and in damp atmosphere, meet airborne moisture, promptly be decomposed into hydrogen chloride gas and ultra tiny silicon-dioxide aerosol dispersion; Most nano level and the Subnano-class particle diameters of belonging to of the silicon-dioxide aerosol colloidal particle that forms deposit on respiratory tract and lung and are difficult to after people and animals suck and get rid of, and easily produce serious " silicosis ".Bring serious atmospheric pollution; And, SiCl
4Still produce the basic raw material of electronic-grade polycrystalline silicon, utility value is preferably arranged.If SiCl
4Directly from waste gas, drain, cause pollution atmospheric environment, and the significant wastage of resource.For this reason, the cooperation of unit such as Zunyi Titanium Industry Co. Ltd. and Guizhou Material Technology Innovation Base, developed the Technology (application number: 200510003081.1) of a kind of separation and enrichment recovering silicon tetrachloride, the method and the related process parameter of recovery silicon tetrachloride that this technology is clear and definite lays the foundation for reclaim silicon tetrachloride from the refining waste gas of producing of crude titanic chloride.
Three, utility model content
The purpose of this utility model is, in order to reclaim refining TiCl in actual production
4The time SiCl that produces
4, the applicant has designed a kind of refining TiCl on existing equipment
4Reclaim SiCl in the process
4Device.The existing installation that this retrieving arrangement comprises mainly contains still kettle, rectifying tower, is connected with condenser by pipeline in the fractionate upper end, and condenser is connected with backflash again, and holding tank is connected with backflash, and backflash is connected with the upper end of fractionate.And tensimeter, thermometer, liquidometer are arranged on still kettle, thermometer is arranged on the rectifying tower, liquidometer is arranged on the holding tank.
The low boilers that in the leaching process refining titanic chloride is produced joins the still kettle heating, controls technical parameters such as certain temperature, pressure, isolates SiCl by rectifying tower
4, be recovered to holding tank through condenser condenses.Adopt the beneficial effect of the technical program to be: this equipment configuration is made easily, and simple in structure, extraction effect is good.When increasing economic benefit, also reduced because of SiCl
4Direct exhaust emission environment from waste gas.
Four, description of drawings
Fig. 1 is refining TiCl
4Reclaim SiCl in the process
4The apparatus structure synoptic diagram.
Among the figure: 1-still kettle, 2-rectifying tower, 3-heating unit, 4-condenser; 5-opening for feed, 6-holding tank, 7-discharge port, 8-slag notch, 9-backflash, 10-vapour pipe, 11-return line.
Five, embodiment
Below in conjunction with accompanying drawing to refining TiCl of the present utility model
4Reclaim SiCl in the process
1Device elaborate.This device mainly partly is made up of still kettle 1, rectifying tower 2, condenser 4, holding tank 6 etc., promptly fractionate 2 the lower end be connected with distiller 1 by vapour pipe 10, return line 11, be provided with heating unit 3 in the distiller 1, distiller 1 lower end is provided with slag notch 8, also be provided with opening for feed 5 on the fractionate 2, the lower end is provided with discharge port 7; The upper end of fractionate 2 is connected with condenser 4 by pipeline, and condenser 4 is connected with backflash 9 again, and holding tank 6 is connected with backflash 9, and backflash 9 is connected with the upper end of fractionate 2.
Tensimeter, thermometer, liquidometer are arranged on still kettle 1, and rectifying tower 2 is provided with thermometer, and holding tank 6 is provided with liquidometer.
During production, refining thick TiCl
4Low boilers add from opening for feed 5, backflow 11 along fractionate 2 lower ends enters still kettle 1, by the 3 heating vaporizations of the heating unit on the still kettle 1, the steam that produces carries out the solution-air heat exchange by rectifying tower 2 and adding raw material and phegma, in tower, form a thermograde, temperature increases progressively from top to bottom, relatively the lower SiCl of boiling point
4Gas rises to rectifying tower 2 cats head, is cooled to liquid through condenser and enters holding tank, realizes SiCl
4Recovery.Remove SiCl
4Discharge etc. lower boiling titanium tetrachloride discharging 7, the slag of generation is discharged from slag notch 8.
Claims (2)
1, a kind of refining TiCl
4Reclaim SiCl in the process
4Device, by still kettle (1), rectifying tower (2), condenser (4), holding tank (6), several parts of backflash (9) are formed, vapour pipe (10) is passed through in lower end at fractionate (2), return line (11) is connected with distiller (1), be provided with heating unit (3) in the distiller (1), distiller (1) lower end is provided with slag notch (8), also be provided with opening for feed (5) on the fractionate (2), the lower end is provided with discharge port (7), the upper end that it is characterized in that fractionate (2) is connected with condenser (4) by pipeline, condenser (4) is connected with backflash (9) again, holding tank (6) is connected with backflash (9), and backflash (9) is connected with the upper end of fractionate (2).
2, according to the refining TiCl of claim 1
4Reclaim SiCl in the process
4Device, it is characterized in that: on still kettle (1) tensimeter, thermometer, fluid level measuring gauge are arranged, rectifying tower (2) is provided with thermometer, and holding tank (6) is provided with fluid level measuring gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201742767U CN201144153Y (en) | 2007-12-15 | 2007-12-15 | Device for recovering SiCl4 in TiCl4 refining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201742767U CN201144153Y (en) | 2007-12-15 | 2007-12-15 | Device for recovering SiCl4 in TiCl4 refining process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144153Y true CN201144153Y (en) | 2008-11-05 |
Family
ID=40081021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201742767U Expired - Fee Related CN201144153Y (en) | 2007-12-15 | 2007-12-15 | Device for recovering SiCl4 in TiCl4 refining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144153Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483311A (en) * | 2013-08-27 | 2014-01-01 | 仙桃市康化科技有限公司 | Automatic production system for 2-acetylthiophene |
| CN103613127A (en) * | 2013-11-27 | 2014-03-05 | 攀枝花钢企欣宇化工有限公司 | Recycling method of low-boiling point matters in titanium tetrachloride production |
| CN104192894A (en) * | 2014-08-14 | 2014-12-10 | 仙桃市中星电子材料有限公司 | Refining method of titanium tetrachloride |
| CN105271385A (en) * | 2015-11-06 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method of removing silicon in coarse titanium tetrachloride |
-
2007
- 2007-12-15 CN CNU2007201742767U patent/CN201144153Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103483311A (en) * | 2013-08-27 | 2014-01-01 | 仙桃市康化科技有限公司 | Automatic production system for 2-acetylthiophene |
| CN103483311B (en) * | 2013-08-27 | 2018-10-30 | 仙桃市康化科技有限公司 | 2- acetyl thiophene Automatic Production Systems |
| CN103613127A (en) * | 2013-11-27 | 2014-03-05 | 攀枝花钢企欣宇化工有限公司 | Recycling method of low-boiling point matters in titanium tetrachloride production |
| CN103613127B (en) * | 2013-11-27 | 2015-08-05 | 攀枝花钢企欣宇化工有限公司 | The recoverying and utilizing method of low boilers in titanium tetrachloride production |
| CN104192894A (en) * | 2014-08-14 | 2014-12-10 | 仙桃市中星电子材料有限公司 | Refining method of titanium tetrachloride |
| CN105271385A (en) * | 2015-11-06 | 2016-01-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method of removing silicon in coarse titanium tetrachloride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20111215 |