CN103342344A - Crude iodine purifying process - Google Patents
Crude iodine purifying process Download PDFInfo
- Publication number
- CN103342344A CN103342344A CN2013102961456A CN201310296145A CN103342344A CN 103342344 A CN103342344 A CN 103342344A CN 2013102961456 A CN2013102961456 A CN 2013102961456A CN 201310296145 A CN201310296145 A CN 201310296145A CN 103342344 A CN103342344 A CN 103342344A
- Authority
- CN
- China
- Prior art keywords
- iodine
- tail gas
- thick
- gas
- purifying technique
- 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.)
- Pending
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a crude iodine purifying process which comprises the following steps of: (1) adding crude iodine into a ceramic reaction kettle, and adding 2-5% of pure alkali in percentage by mass; (2) starting a heating device to heat the reaction kettle, and controlling the temperature of the reaction kettle to be 120-180 DEG C; (3) inserting an air tube into the reaction kettle, and opening a compressor to blow out iodine steam; (4) cooling to crystallize the blown iodine steam, and subsequently collecting so as to obtain a final fine iodine product; (5) feeding tail gas discharged from a condenser into a washing tank to wash, discharging the tail gas washed by washing liquid through a fan, and at the same time recycling the iodine in the tail gas. By using the process disclosed by the invention, the iodine in the tail gas with iodine steam or iodine in the overflowed iodine-containing gas is captured and recycled, so that not only is the environment protected, but also the iodine resource is sufficiently and efficiently recycled, the waste is turned into wealth, and good economic values are achieved.
Description
Technical field
The present invention relates to separate, specifically relate to the purification of thick iodine.
Background technology
Iodine has critical role as one of important Inorganic Chemicals in national economy, at present, the smart iodine that purity is high worldwide all belongs to narrow resources.The applicant applied for once that application number was the patent of 200810068752.6 " a kind of methods of refining industrial coarse iodine ", this technical scheme can reach effect preferably, but contains the tail gas of iodine steam or effusion contains iodine gas if directly discharging not only causes the waste of iodine resource but also also can work the mischief to environment.It is to add chemical substance to carry out removal of impurities that the present invention adopts, and blows out agent and vaporized chemical with what pressurized air was made iodine steam, comes iodine is purified in subliming method, obtains the smart iodine of iodine content 〉=99.5%.
Through retrieval, still useless adding chemical substance is carried out removal of impurities at present, blows out agent and vaporized chemical with what pressurized air was made iodine steam, to the purify patent application of invention of iodine.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of purifying technique of thick iodine is provided, reached tail gas or the effusion that to contain iodine steam and contained the purpose that the iodine capture in the iodine gas is reclaimed.
Technical scheme of the present invention: a kind of thick iodine purifying technique comprises the steps:
(1) thick iodine is added in the ceramic reactor, and add the soda ash of quality percentage composition 2～5%.
(2) start heating unit reacting by heating still, the temperature of control reactor is at 120～180 ℃;
(3) blast main is inserted in the reactor, and opens compressor, blow out iodine steam;
(4) blow out iodine steam behind the device crystallisation by cooling of sublimating, collect the smart iodine of the finished product;
(5) enter the washing tank washing through the device tail gas discharged of sublimating, the tail gas after the washings washing is discharged by blower fan, reclaims the iodine of trace in the tail gas simultaneously.
The mass percent of iodine is 50-90% in the thick iodine in the above-mentioned steps (1).
Heating unit in the above-mentioned steps (2) is to adopt jacketed type electric oil mode, controls the oil temperature by regulating electrically heated rod power, thereby reaches the control reactor temperature.
What compressor was blown in the above-mentioned steps (3) is dry air or nitrogen; Flow 0.5～the 5m of blow out air gas
3/ h, the flow 1～3m of bubbling air gas
3/ h.
Iodine content 〉=99.5% of the smart iodine that obtains in the above-mentioned steps (4).
Washings in the above-mentioned steps (5) is prepared as follows: with SO
2Gas feeds in the water, and is water-soluble and react with water and to generate mass percent 10%～20%H
2SO
3Solution.
Beneficial effect of the present invention: 1, this technology can be produced the smart iodine more than or equal to 99.5%, is 450,000 yuan/ton of the market value of 420,000 yuan/ton and smart iodine according to the market value of thick iodine, and both price differences are: 30,000 yuan/ton.If by 100 tons of calculating of annual product, can create 3,000,000 yuan of economic worths.2, be after the washing to contain in the iodine washings foreign matter content few, it is above and make washings still have lower viscosity that the iodine concentration of washings can reach 100g/L, is beneficial to the carrying out of analysing the iodine operation, is more conducive to reclaim iodine.3, contain that the tail gas of iodine steam or effusion contain iodine gas if directly discharging not only causes the waste of iodine resource but also also can work the mischief to environment.This technology will contain the tail gas of iodine steam or effusion and contain iodine in the iodine gas and capture and reclaim, and not only protect environment but also reclaim the iodine resource fully efficiently, turn waste into wealth.Market value according to thick iodine is 420,000 yuan of/ton meters, if reclaimed 10 tons of thick iodine by 1 year, then can create 4,200,000 yuan of economic worths in 1 year.
Description of drawings
Fig. 1 is process flow sheet of the present invention;
Among the figure: the 1-device of sublimating; The 2-ceramic reactor; The 3-washing tank; The 4-compressor; 5-washings Preparation tank; 6-product storage tank; 7-washings storage tank; The 8-centrifugal blower; The 9-blower fan.
Embodiment
Embodiment
A kind of thick iodine purifying technique comprises the steps:
(1) thick iodine is added in the ceramic reactor, and add the soda ash of quality percentage composition 2～5%;
(2) start heating unit reacting by heating still, the temperature of control reactor is at 120～180 ℃;
(3) blast main is inserted in the reactor, and opens compressor, blow out iodine steam; Blow the flow 0.5～5m of air gas
3/ h, the flow 1～3m of bubbling air gas
3/ h;
(4) blow out iodine steam behind the device crystallisation by cooling of sublimating, collect the smart iodine of the finished product;
(5) enter the washing tank washing through the device tail gas discharged of sublimating, the tail gas after the washings washing is discharged by blower fan, reclaims the iodine of trace in the tail gas simultaneously.
The mass percent of iodine is 50-90% in the thick iodine in the above-mentioned steps (1).
Heating unit in the above-mentioned steps (2) is to adopt jacketed type electric oil mode, controls the oil temperature by regulating electrically heated rod power, thereby reaches the control reactor temperature.
What compressor was blown in the above-mentioned steps (3) is dry air or nitrogen.
Iodine content 〉=99.5% of the smart iodine that obtains in the above-mentioned steps (4).
Washings in the above-mentioned steps (5) is prepared as follows: with SO
2Gas feeds in the water, and is water-soluble and react with water and to generate mass percent 10%～20%H
2SO
3Solution.
Claims (6)
1. a thick iodine purifying technique is characterized in that it comprises the steps:
(1) thick iodine is added in the ceramic reactor, and add the soda ash of quality percentage composition 2～5%; (2) start heating unit reacting by heating still, the temperature of control reactor is at 120～180 ℃;
(3) blast main is inserted in the reactor, and opens compressor, blow out iodine steam;
(4) blow out iodine steam behind the device crystallisation by cooling of sublimating, collect the smart iodine of the finished product;
(5) enter the washing tank washing through the device tail gas discharged of sublimating, the tail gas after the washings washing is discharged by blower fan, reclaims the iodine of trace in the tail gas simultaneously.
2. thick iodine purifying technique according to claim 1, the mass percent that it is characterized in that iodine in the thick iodine in the step (1) is 50-90%.
3. thick iodine purifying technique according to claim 1 is characterized in that the heating unit in the step (2) is to adopt jacketed type electric oil mode, controls the oil temperature by regulating electrically heated rod power, thereby reaches the control reactor temperature.
4. thick iodine purifying technique according to claim 1, what it is characterized in that compressor is blown in the step (3) is dry air or nitrogen; Flow 0.5～the 5m of the gas of blow gas
3/ h, the flow 1～3m of bubbled gas
3/ h.
5. thick iodine purifying technique according to claim 1 is characterized in that iodine content 〉=99.5% of the smart iodine that obtains in the step (4).
6. thick iodine purifying technique according to claim 1 is characterized in that the washings in the step (5) is prepared as follows: with SO
2Gas feeds in the water, and is water-soluble and react with water and to generate mass percent 10%～20%H
2SO
3Solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102961456A CN103342344A (en) | 2013-07-16 | 2013-07-16 | Crude iodine purifying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102961456A CN103342344A (en) | 2013-07-16 | 2013-07-16 | Crude iodine purifying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103342344A true CN103342344A (en) | 2013-10-09 |
Family
ID=49277187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102961456A Pending CN103342344A (en) | 2013-07-16 | 2013-07-16 | Crude iodine purifying process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103342344A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671209A (en) * | 2013-11-27 | 2015-06-03 | 天津市艾碘科技有限公司 | Method for sublimating industrial crude iodine |
| CN107638775A (en) * | 2017-08-24 | 2018-01-30 | 陈红珍 | A kind of iodine gas emission device |
| CN115948799A (en) * | 2023-03-14 | 2023-04-11 | 四川科宏达集团有限责任公司 | Method for preparing iodine single crystal from crude iodine at low temperature and iodine single crystal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274748A (en) * | 2008-05-21 | 2008-10-01 | 瓮福（集团）有限责任公司 | Method for refining industrial coarse iodine |
| CN101759152A (en) * | 2009-11-17 | 2010-06-30 | 瓮福（集团）有限责任公司 | Method for removing impurities in process of extracting iodine by using iodine-contained phosphate ore as raw materials |
| CN202465270U (en) * | 2012-02-06 | 2012-10-03 | 江苏焕鑫高新材料科技有限公司 | Coarse iodine recovery device |
| CN103011083A (en) * | 2012-12-04 | 2013-04-03 | 瓮福（集团）有限责任公司 | Gas-phase iodine crystallization method |
-
2013
- 2013-07-16 CN CN2013102961456A patent/CN103342344A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274748A (en) * | 2008-05-21 | 2008-10-01 | 瓮福（集团）有限责任公司 | Method for refining industrial coarse iodine |
| CN101759152A (en) * | 2009-11-17 | 2010-06-30 | 瓮福（集团）有限责任公司 | Method for removing impurities in process of extracting iodine by using iodine-contained phosphate ore as raw materials |
| CN202465270U (en) * | 2012-02-06 | 2012-10-03 | 江苏焕鑫高新材料科技有限公司 | Coarse iodine recovery device |
| CN103011083A (en) * | 2012-12-04 | 2013-04-03 | 瓮福（集团）有限责任公司 | Gas-phase iodine crystallization method |
Non-Patent Citations (1)
| Title |
|---|
| 舒文等: ""一种碘蒸汽的回收工艺与装置"", 《医药工程设计》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671209A (en) * | 2013-11-27 | 2015-06-03 | 天津市艾碘科技有限公司 | Method for sublimating industrial crude iodine |
| CN107638775A (en) * | 2017-08-24 | 2018-01-30 | 陈红珍 | A kind of iodine gas emission device |
| CN115948799A (en) * | 2023-03-14 | 2023-04-11 | 四川科宏达集团有限责任公司 | Method for preparing iodine single crystal from crude iodine at low temperature and iodine single crystal |
| CN115948799B (en) * | 2023-03-14 | 2023-05-12 | 四川科宏达集团有限责任公司 | Method for preparing iodine single crystal by crude iodine at low temperature and iodine single crystal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101817526B (en) | Method for recovering polyethylene glycol and silicon carbide from silicon crystal cutting waste liquid | |
| CN104313349A (en) | Method of extracting lithium salt from lepidolite | |
| CN106517256A (en) | Method for producing lithium hydroxide monohydrate from lithium carbonate | |
| CN103771425A (en) | Production process for preparing white carbon black by use of rice hull ash | |
| CN103342344A (en) | Crude iodine purifying process | |
| CN105084370A (en) | Slag slurry treatment method and treatment apparatus in high-pressure low-temperature hydrogenation process | |
| CN103193238B (en) | Method for producing superfine white carbon black, ferric hydroxide and aluminum oxide by using coal ash | |
| CN102180502B (en) | Method for extracting alum from lepidolite raw material | |
| CN106636615B (en) | The mica treatment process of lithium carbonate is prepared using lepidolite | |
| CN203346452U (en) | Device for dechlorination of zinc oxide fume through steam activation/microwave roasting | |
| CN104258662A (en) | Sulfur melting waste gas recycling method | |
| CN104959002A (en) | Method for removing hydrogen chloride by continuously recycling glyphosate hydrolyzed tail gas | |
| CN106268241A (en) | Copper making ring collection fume desulphurization method and device | |
| CN107746066A (en) | Ammonium chloride preparation system and method for lime-ash plasma melting processing system | |
| CN101531352A (en) | Method for using phosphoric oxide to concentrate diluted phosphoric acid to prepare crystal polyphosphoric acid | |
| CN101323441B (en) | Reclaiming method of wet method phosphoric acid ardealite storage yard eluviate water | |
| CN101792862B (en) | Method for recovering metal through purified flue gas of scrap nickel-hydrogen battery | |
| CN103318958B (en) | Separation and refining method of arsenic trioxide | |
| CN105152171A (en) | Special system and method for continuously recovering chlorosilane containing slurry in polycrystalline silicon production process | |
| CN109761254A (en) | A method of reducing aluminium hydroxide or sodium oxide in aluminum oxide impurity content | |
| CN101219943A (en) | Method for purifying and using chloroethanoic acid tail gas | |
| CN112090105B (en) | Method for refining iodine by circulating air sublimation | |
| CN101798121B (en) | Method for recovering and recycling sodium bromide from diethylbutylmalonate waste water | |
| CN103537112A (en) | Method for recovering water from hot carrier gas for lignite drying | |
| CN102030342B (en) | Method and device for recovering anhydrous sodium sulfate from hydroxy benzotriazole production waste liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131009 |