CN101759151A - Method for iodine granulation - Google Patents
Method for iodine granulation Download PDFInfo
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- CN101759151A CN101759151A CN200910102858A CN200910102858A CN101759151A CN 101759151 A CN101759151 A CN 101759151A CN 200910102858 A CN200910102858 A CN 200910102858A CN 200910102858 A CN200910102858 A CN 200910102858A CN 101759151 A CN101759151 A CN 101759151A
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- iodine
- granulation
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- air
- described method
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Abstract
The invention discloses a method for iodine granulation. The method includes the following steps: (1) iodine is heated to the state of fusion; (2) the iodine in the state of fusion is pressed to a granulator by compressed air for granulation; (3) iodine granules from the granulator directly enter a cooling tank for cooling; (4) after the iodine granules are formed through cooling, moisture on the surfaces of the iodine granules is dried by the air so as to form iodine granular products. The invention adopts the comprehensive method including iodine heating and fusing, air extruding and granulating, cold water cooling and forming and air drying of surface moisture; the iodine granular products produced by the above method are uniform, the diameter of the iodine granular products is within 2 to 4mm, and the surface is smooth, mellow, round and non-volatile. Therefore, the iodine granular products produced by the above method can adapt to the development of the market and can meet the requirements of merchants.
Description
Technical field
The present invention relates to iodine, relate in particular to the method for iodine granulation.
Background technology
Iodine is the basic raw material of making inorganic or organic iodide, is again the requisite nutritive element of human body and plant, is widely used in medicine, agricultural, dyestuff, controls gold, synthetic rubber, national defence and sophisticated technology field.Iodine is the widest in China's purposes to be as the additive in the salt, prevents and treats the harm of iodine deficiency, and consumption accounts for 60% of China's iodine consumption.Though iodine only accounts for 40% at the consumption of other industry, these industries are increasing the demand of iodine is annual, and consumption is increasing, requires also more and more higher.Particularly, very strict to the requirement of iodine quality in the iodine catalyst field, and the profile particle of iodine also had special requirement.Iodine the purposes of catalyst field very extensively, iodine has katalysis efficiently when synthetic rubber (polybutene), iodine also has very big catalytic activity in the manufacturing processed of acetic acid; Part ester, aldehyde etc. organic synthetic in, iodine also is indispensable catalyzer.Iodine in the purposes of catalyst field is more and more widely made with extra care and granulation is the development that adapts to market iodine.
At present, the Chinese patent application part that relates to the iodine crystallization method only has No. 200810068752.6 " a kind of method of refining industrial coarse iodine " and No. 200910102719.5 " a kind of iodine crystallizer ", does not still have the Chinese patent application part that relates to the iodine granulation method.
Summary of the invention
The object of the present invention is to provide a kind of method of iodine granulation, make the particulate product that to produce iodine in this way,, satisfy the requirement of businessman to adapt to the development in market.
The method of a kind of iodine granulation that the contriver provides may further comprise the steps:
(1) iodine is heated to molten state;
(2) with pressurized air the iodine of molten state is squeezed to tablets press, carries out granulation;
(3) the iodine particle that comes out from tablets press directly enters the cooling pool cooling;
(4) treat iodine particle cooling forming after, with dry air its surperficial moisture, make the particulate product of iodine.
In the first step of aforesaid method, the temperature that iodine is heated to molten state is 110 ℃～120 ℃.
In second step of aforesaid method, compressed-air actuated pressure is 0.2MPa～1MPa; The caliber variable range is 2～4mm in the tablets press; The granulation time is 0.5～2s.
In the 3rd step of aforesaid method, 10 ℃～15 ℃ of cooling pool water temperature controls, be 10min cooling time.
In the 4th step of aforesaid method, used air pressure is 0.4MPa～0.5MPa; Temperature is 20 ℃～45 ℃, and be 30min time of drying.
The present invention is by heating and melting, air extrusion granulation, cold water cooling forming, the dry air surface-moisture integrated approach of iodine, and the iodine product particle homogeneous diameter of producing is 2～4mm, and smooth surface is mellow and full, grain is round, not volatile.Thereby adapt to the development in market, satisfy the requirement of businessman.
Embodiment
Below, further specify beneficial effect of the present invention by embodiment.
The granulation step of embodiment iodine:
(1) iodine is heated to 110～120 ℃ and becomes molten state;
(2) be that the pressurized air of 0.6M Pa is squeezed to tablets press with the iodine of molten state with pressure, carry out granulation, the caliber variable range is 2～4mm in the tablets press; The granulation time is 1s;
(3) the iodine particle that comes out from tablets press directly enters the cooling pool cooling, 10 ℃～15 ℃ of water temperature controls;
(4) treat iodine particle cooling forming after, be that 0.5M Pa, temperature are its surperficial moisture of dry air of 35 ℃ with pressure, make the particulate product of iodine.
The product particle homogeneous diameter that obtains is 2～4mm, and smooth surface is mellow and full, grain is round.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (5)
1. the method for an iodine granulation, its feature comprises:
(1) iodine is heated to molten state;
(2) with pressurized air the iodine of molten state is squeezed to tablets press, carries out granulation;
(3) the iodine particle that comes out from tablets press directly enters the cooling pool cooling;
(4) treat iodine particle cooling forming after, with dry air its surperficial moisture, make the particulate product of iodine.
2. the prilling process of iodine as claimed in claim 1 is characterized in that in the first step of described method, and the temperature that iodine is heated to molten state is 110 ℃～120 ℃.
3. the prilling process of iodine as claimed in claim 1 is characterized in that compressed-air actuated pressure is 0.2MPa～1MPa in second step of described method; The caliber variable range is 2～4mm in the tablets press; The granulation time is 0.5～2s.
4. the prilling process of iodine as claimed in claim 1 is characterized in that the cooling pool water temperature is controlled at 10 ℃～15 ℃ in the 3rd step of described method; Be 10min cooling time.
5. the prilling process of iodine as claimed in claim 1 is characterized in that used air pressure is 0.4MPa～0.5MPa in the 4th step of described method; 20 ℃～45 ℃ of temperature, be 30min time of drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102858A CN101759151A (en) | 2009-11-17 | 2009-11-17 | Method for iodine granulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102858A CN101759151A (en) | 2009-11-17 | 2009-11-17 | Method for iodine granulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101759151A true CN101759151A (en) | 2010-06-30 |
Family
ID=42490560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910102858A Pending CN101759151A (en) | 2009-11-17 | 2009-11-17 | Method for iodine granulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101759151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032283A (en) * | 2015-06-26 | 2015-11-11 | 山东阳谷华泰化工股份有限公司 | Granulation method and granulation system for 1, 3-bis(citraconoyl formimino) benzene |
-
2009
- 2009-11-17 CN CN200910102858A patent/CN101759151A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032283A (en) * | 2015-06-26 | 2015-11-11 | 山东阳谷华泰化工股份有限公司 | Granulation method and granulation system for 1, 3-bis(citraconoyl formimino) benzene |
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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: 20100630 |