CN103569972B - A kind of preparation method of sugar industry sulfur dioxide gas - Google Patents
A kind of preparation method of sugar industry sulfur dioxide gas Download PDFInfo
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- CN103569972B CN103569972B CN201310558369.XA CN201310558369A CN103569972B CN 103569972 B CN103569972 B CN 103569972B CN 201310558369 A CN201310558369 A CN 201310558369A CN 103569972 B CN103569972 B CN 103569972B
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- dioxide gas
- sulfur dioxide
- sulphur
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Abstract
The present invention relates to a kind of preparation method of sugar industry sulfur dioxide gas, its concrete steps are: add in reaction vessel by the vitriol oil and sulphur, after reinforced end, be heated to start reaction and produce sulfur dioxide gas, the sulfur dioxide gas produced is cooled to 60-70 DEG C, the described vitriol oil and the mass ratio of sulphur are 5-7:1, and the mass concentration of the described vitriol oil is 93-98.3%.The method utilizes vitriol oil oxidizing simple substance sulphur, produce sulfur dioxide gas, traditional problems existing for sulfur burning preparation sugar sulfur dioxide gas can be solved preferably, there is following effect: the sulfur dioxide gas scale of construction easily controls, sublimed sulphur is few simultaneously; Pure, the oxygenous amount of sulfur dioxide gas produced is little and temperature is not high, easily cools; Raw material is easy to get, cost is low, and the sulphur amount used significantly reduces; The device preparing sulfur dioxide gas is simple, floor space is little.
Description
Technical field
The present invention relates to a kind of preparation method of sugar industry sulfur dioxide gas.
Background technology
At present, cane sugar factory generally adopts sulfurous method sugar refining technology, sulfurous method sugar refining technology mainly utilizes sulfur dioxide gas and milk of lime to react to generate calcium sulfite and precipitates, and calcium sulfite deposit seeds adsorbs the clarify and decolorize that non-sugar composition realizes Cane Mixed Juice; Sulfurous gas realizes bleaching action by reduction coloring matter simultaneously.Sugar refinery sulfur dioxide gas is generally produced by the burning of sulphur in sulphur-furnace, the subject matter of the method has, the sulfur dioxide gas scale of construction is difficult to control, sulphur-furnace and the corresponding cooling of high temperature sulfur dioxide gas to the burn into high temperature sulfur dioxide gas of cooling duct needs to consume a large amount of water coolants, sulfur burning process produces more sublimed sulphur, sulfur burning process easily produces sulphur trioxide and sulphur-furnace workshop floor space is large, environmental pollution is serious, so preparing sulfur dioxide gas is the important technology difficult problem that sugar refinery faces always.Although above-mentioned subproblem can be solved to a certain extent by the traditional sulphur-furnace of transformation, but produce sulphur-furnace expensive, easily the new problem such as to break down.
Summary of the invention
The technical problem to be solved in the present invention is: provide novel method prepared by a kind of sugar industry sulfur dioxide gas, the method utilizes vitriol oil oxidizing simple substance sulphur, produce sulfur dioxide gas, traditional problems existing for sulfur burning preparation sugar sulfur dioxide gas can be solved preferably, there is following effect: the sulfur dioxide gas scale of construction easily controls, sublimed sulphur is few simultaneously; High, the oxygenous amount of sulfur dioxide gas purity produced is few and temperature is not high, easily cools; Raw material is easy to get, cost is low, and the sulphur amount used significantly reduces; The device preparing sulfur dioxide gas is simple, floor space is little; Solve above-mentioned problems of the prior art.
The technical scheme solved the problems of the technologies described above is: a kind of preparation method of sugar industry sulfur dioxide gas, the vitriol oil and sulphur are added in reaction vessel, after reinforced end, be heated to 200-300 DEG C and start reaction generation sulfur dioxide gas, the sulfur dioxide gas produced adopts water quench to 60-70 DEG C, the described vitriol oil and the mass ratio of sulphur are 5-7:1, and the mass concentration of the described vitriol oil is 93-98.3%.
Described be heated to start reaction and produce sulfur dioxide gas and refer to that being heated to temperature is 200-250 DEG C.
Described sulphur is SULPHUR POWDER, first adds in reaction vessel by the vitriol oil, adds in reaction vessel afterwards by SULPHUR POWDER, is first heated to SULPHUR POWDER melting, then continues to be heated to start reaction and produces sulfur dioxide gas.
Described sulphur is the Molten sulphur of heating and melting, first Molten sulphur is added in reaction vessel, then adds the vitriol oil, is then heated to start reaction and produces sulfur dioxide gas.
Described sulphur is the Molten sulphur of heating and melting, adds in reaction vessel by Molten sulphur and the vitriol oil simultaneously, after reinforced end, continues to be heated to start reaction and produces sulfur dioxide gas.
The present invention proposes novel method prepared by a kind of sugar industry sulfur dioxide gas, and the method, based on the oxidisability of the vitriol oil, in case of heating, gets final product oxidizing simple substance sulphur, produces sulfur dioxide gas, for Sulphitation and Neutralization or the stove drying of syrup secondary of mixing juice.
Principle of the present invention: under the condition of heating, utilizes vitriol oil oxidizing simple substance sulphur, produces sulfur dioxide gas.Its principle useful chemical equation is expressed as follows:
2H
2SO
4+S==3SO
2↑+2H
2O
Owing to adopting technique scheme, the preparation method of a kind of sugar industry sulfur dioxide gas of the present invention has following beneficial effect:
1, the sulfur dioxide gas scale of construction easily controls, sublimed sulphur is few: existingly produced in the technique of sulfur dioxide gas by sulfur burning, because sulfur burning is incomplete, there is a large amount of sublimed sulphur, and the present invention adopts the vitriol oil and sulfur reaction to produce sulfur dioxide gas, by controlling the growing amount of temperature of reaction or sulphur addition and adjustable sulfur dioxide gas, because temperature is not high and the Molten sulphur of melting is submerged in below the liquid level of the liquid vitriol oil, so sublimed sulphur is also less.
2, produce sulfur dioxide gas temperature not high, easily cool, and purity is little compared with high, oxygenous amount: in the existing technique by sulfur burning production sulfur dioxide gas, need to pass into sufficient air to ensure the Thorough combustion of sulphur, therefore can bring and generate more SO because there is excessive oxygen
3and containing excessive oxygen in sulfur dioxide gas, affect the decolorizing effect of syrup; And do not need to pass into air in production process of the present invention, therefore the SO produced
2do not have excessive oxygen in gas, do not have SO yet
3, the SO of generation
2gaseous mass is good.In addition, in the existing technique by sulfur burning production sulfur dioxide gas, the SO obtained
2gas temperature is higher, cooling difficulty; And the SO that the present invention produces
2gas temperature is generally below 300 DEG C, and cooling easily.
3, raw material is easy to get, cost is low, the sulphur amount used significantly reduces: the vitriol oil oxidizing simple substance sulphur that the present invention utilizes raw material to be easy to get, produce sulfur dioxide gas, the vitriol oil is main raw material, consumption is many, and sulphur is auxiliary material, and consumption is few, the cost of the vitriol oil is lower than sulphur, therefore the cost that the present invention produces sulfur dioxide gas relative to sulfur burning is lower.
4, the device preparing sulfur dioxide gas is simple, floor space is little: less demanding to production unit of the present invention, namely the device that can carry out stirring and evenly mixing and heating can be used for the present invention, and compared with existing brimstone furnace, device is simple, floor space is little.
Below, the technical characteristic of the preparation method of a kind of sugar industry sulfur dioxide gas of the present invention is further described in conjunction with the embodiments.
Embodiment
Embodiment 1:
The vitriol oil 200kg of mass concentration 98.3% is added in reactor, adds SULPHUR POWDER 30kg afterwards, after reinforced end mixing, heating makes sulfur melting, then continue to be heated to 280 DEG C of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 70 DEG C.
Embodiment 2:
The vitriol oil 140kg of mass concentration 93.0% is added in reactor, adds SULPHUR POWDER 20kg afterwards, after reinforced end mixing, heating makes sulfur melting, then continue to be heated to 300 DEG C of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 60-70 DEG C.
Embodiment 3:
Added in reactor by the Molten sulphur 30kg of heating and melting, then add the vitriol oil 150kg of mass concentration 97%, after reinforced end, be heated to 250 DEG C of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 70 DEG C.
Embodiment 4:
Added in reactor by the Molten sulphur 15kg of heating and melting, then add the vitriol oil 90kg of mass concentration 97.5%, after reinforced end, be heated to 200 DEG C of reactions and produce sulfur dioxide gas, the sulfur dioxide gas of generation, utilizes tap water to be cooled to 60-70 DEG C.
Embodiment 5:
120 kg Molten sulphur is pumped in reactor by 120 kg metering per hour by the Molten sulphur of heating and melting, pump into the vitriol oil 800 kilograms of mass concentration 98.3% by 800 kilograms of meterings per hour simultaneously, after stirring, be heated to 250 DEG C of reactions and produce sulfur dioxide gas, reactor adopts electromagnetic relay to carry out thermostatic control.The sulfur dioxide gas produced, utilizes tap water to be cooled to 70 DEG C.
Embodiment 6:
Pump in reactor by the Molten sulphur 55 kilograms of heating and melting, pump into the vitriol oil 300 kilograms of mass concentration 95.0% simultaneously, after reinforced end, be heated to 230 DEG C and start reaction generation sulfur dioxide gas, reactor adopts electromagnetic relay to carry out thermostatic control.The sulfur dioxide gas produced, utilizes tap water to be cooled to 70 DEG C.
The tap water that utilizes described in various embodiments of the present invention is cooled to 60-70 DEG C, and its embodiment can be that sulfur dioxide gas to be passed into heat-eliminating medium be in the interchanger of water.One as various embodiments of the present invention converts, and described sulfur dioxide gas can also adopt other modes to cool.
Claims (4)
1. the preparation method of a sugar industry sulfur dioxide gas, it is characterized in that: the vitriol oil and sulphur are added in reaction vessel, after reinforced end, be heated to 200-250 DEG C and start reaction generation sulfur dioxide gas, the sulfur dioxide gas produced adopts water quench to 60-70 DEG C, the described vitriol oil and the mass ratio of sulphur are 5-7:1, and the mass concentration of the described vitriol oil is 93-98.3%.
2. the preparation method of a kind of sugar industry sulfur dioxide gas according to claim 1, it is characterized in that: described sulphur is SULPHUR POWDER, first the vitriol oil is added in reaction vessel, afterwards SULPHUR POWDER is added in reaction vessel, first be heated to SULPHUR POWDER melting, then continue to be heated to start reaction and produce sulfur dioxide gas.
3. the preparation method of a kind of sugar industry sulfur dioxide gas according to claim 1, it is characterized in that: described sulphur is the Molten sulphur of heating and melting, first Molten sulphur is added in reaction vessel, then add the vitriol oil, be then heated to start reaction and produce sulfur dioxide gas.
4. the preparation method of a kind of sugar industry sulfur dioxide gas according to claim 1, it is characterized in that: described sulphur is the Molten sulphur of heating and melting, Molten sulphur and the vitriol oil are added in reaction vessel simultaneously, after reinforced end, continue to be heated to start reaction and produce sulfur dioxide gas.
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| CN103569972B true CN103569972B (en) | 2015-09-23 |
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| CN104291277A (en) * | 2014-09-26 | 2015-01-21 | 青岛奥盖克化工股份有限公司 | Environment-friendly production process for producing sulfuric acid by using waste sulfuric acid by virtue of sulfur reduction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020570A (en) * | 2006-03-22 | 2007-08-22 | 蒋胜 | Production process of eliminating simple substance sulphur from SO2 gas |
| CN103193206A (en) * | 2013-02-28 | 2013-07-10 | 四川大学 | Method for producing SO2 through sulfur reduction and decomposition of sulfate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020570A (en) * | 2006-03-22 | 2007-08-22 | 蒋胜 | Production process of eliminating simple substance sulphur from SO2 gas |
| CN103193206A (en) * | 2013-02-28 | 2013-07-10 | 四川大学 | Method for producing SO2 through sulfur reduction and decomposition of sulfate |
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Effective date of registration: 20190702 Address after: 115214 North of Weiba Road, Yingkou Xianren Island New Area, Liaoning Province Patentee after: COFCO Sugar Industry Liaoning Co., Ltd. Address before: 545006 268 East Ring Road, Liuzhou, the Guangxi Zhuang Autonomous Region Patentee before: Guangxi University of Science and Technology |