CN107156608A - A kind of method of peculiar smell in removal purified salt - Google Patents
A kind of method of peculiar smell in removal purified salt Download PDFInfo
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- CN107156608A CN107156608A CN201710388481.1A CN201710388481A CN107156608A CN 107156608 A CN107156608 A CN 107156608A CN 201710388481 A CN201710388481 A CN 201710388481A CN 107156608 A CN107156608 A CN 107156608A
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Abstract
The invention discloses a kind of method for removing peculiar smell in purified salt.Initiator is being added under conditions of being stirred continuously into purified salt first, is being stirred and evenly mixed, mixture is obtained；Aqueous hydrogen peroxide solution, sodium chlorite aqueous solution and aqueous sodium hypochlorite solution are added into gained mixture to mix, and are dried in the baking oven that preset temperature is put it into after mixing；Products obtained therefrom purified salt after drying is analyzed using headspace gas chromatography, and calculates the content of residual smell substance.Purified salt after present invention processing can reach free from extraneous odour, meet the relevant regulations of latest edition national standard；Total volatile organism content can be down to below 5mg/kg in sample after present invention processing, and butyric acid is not detected then.Therefore, the peculiar smell effect in present invention processing purified salt is notable.
Description
Technical field
The invention belongs to technical field of salt chemical industry, and in particular to a kind of method of peculiar smell in removal purified salt.
Background technology
Chinese crude salt production capacity is up to 100,000,000 tons, in addition to as salt, and majority is used for chlorine industry.It is Chinese to turn into generation at present
Maximum chlor-alkali production state and country of consumption in boundary.China's crude salt production at this stage mainly has sea salt, lake salt and well mine salt.Wherein well
Rock salt is higher because of quality, progressively turns into the crude salt product of main flow.In well mine salt production, with Sichuan Province's yield highest, and river
Nan Sheng quality then highest.350,000,000,000 tons of Henan Province's salt mine prospective reserves, grade of ore sodium chloride content between 75~90%,
Averagely more than 85%, belong to CaSO4Type mineral deposit.Henan Province's salt Tanaka harmful components and impurity content are relatively low, can reach country excellent
Matter salt standard.But during Salt deposition and diagenesis, make the organic substance containing some residual in salt ore bed, these material bags
Short chain organic acid molecule and a small amount of hydrocarbons are included, causes bittern and finished product salt to carry larger different smell.Henan Province year system
Salt ability is about 2,600,000 tons, wherein about 580,000 tons for salt.For a long time, each salt making enterprises in Henan Province lack effectively
Method peculiar smell is handled.This causes the salt product that fixed point is produced often to have unpleasant stink, and each enterprise is equal for this
Heavy cost has been paid, the sound development of Henan Province's salt industry economy is also counteracts that.
Therefore, research and develop a kind of simply and effectively processing method and just seem particularly necessary.Especially reality from 1 day January in 2017
The new edition Standard for Food Grade Salt applied is even more the requirement that must not be made that and have peculiar smell.If this means enterprise is untreated, producing production
Can product will no longer conform to national standard after new standard implementation, smoothly list marketing turn into parameter.
The content of the invention
The technical problem to be solved in the present invention is：According to the technical problem that there is peculiar smell in current purified salt, the present invention is carried
For a kind of effective method for removing peculiar smell in purified salt.Purified salt is using conventional method preparation in technical solution of the present invention
, do not change existing production technology, do not increase large scale equipment substantially, one-time investment is few, instant effect.Meanwhile, the present invention is removed
Treatment agent noresidue used in method, to environment non-hazardous, without cumbersome process such as regeneration, and be easier to realize from
Dynamicization.
In order to solve the above problems, the present invention is adopted the technical scheme that：
The present invention provides a kind of method for removing peculiar smell in purified salt, and the minimizing technology comprises the following steps：
A, feed purification salt is weighed, initiator is added under conditions of being stirred continuously, the addition of the initiator accounts for purified salt
The 2 of weight~10 ‰, are stirred well to the two and are well mixed, obtain mixture；
B, under conditions of stirring, add aqueous hydrogen peroxide solution into mixture obtained by step a and sodium chlorite aqueous solution enter
Row is well mixed, is put it into after mixing in the baking oven of preset temperature, sets drying temperature；The aqueous hydrogen peroxide solution plus
It is 1~the 10 ‰ of purified salt weight to enter amount, and the addition of sodium chlorite aqueous solution is 0~the 10 ‰ of purified salt weight；
Or, under conditions of stirring, aqueous hydrogen peroxide solution, sodium chlorite aqueous solution are added into mixture obtained by step a
It is well mixed with aqueous sodium hypochlorite solution, is put it into after mixing and drying temperature is set in baking oven；The aquae hydrogenii dioxidi
The addition of solution is 1~the 10 ‰ of purified salt weight, the addition of sodium chlorite aqueous solution for purified salt weight 0~
10 ‰, the addition of aqueous sodium hypochlorite solution is 1~the 5 ‰ of purified salt weight；
Drying temperature is set in c, step b as 85~140 DEG C, drying time is 10~30min；
D, products obtained therefrom purified salt after drying is analyzed using headspace gas chromatography, and calculate containing for residual smell substance
Amount.
According to the above-mentioned method for removing peculiar smell in purified salt, purified salt described in step a is refining industrial salt or refined
Edible salt.
According to the above-mentioned method for removing peculiar smell in purified salt, initiator described in step a is hydrochloric acid or citric acid.
According to the above-mentioned method for removing peculiar smell in purified salt, the quality percentage of aqueous hydrogen peroxide solution described in step b
Concentration is 3~60%；The mass percentage concentration of sodium chlorite aqueous solution is 5~50%；The quality hundred of the aqueous sodium hypochlorite solution
It is 20% to divide concentration.
According to the above-mentioned method for removing peculiar smell in purified salt, the mass percentage concentration of the aqueous hydrogen peroxide solution is 20
~50%；The mass percentage concentration of the sodium chlorite aqueous solution is 10~25%.
According to the above-mentioned method for removing peculiar smell in purified salt, preset temperature described in step b is 35~75 DEG C.
According to the above-mentioned method for removing peculiar smell in purified salt, the initiator, hydrogen peroxide, sodium chlorite and hypochlorous acid
Sodium is food-grade.
The positive beneficial effect of the present invention：
1st, the raw material employed in technical solution of the present invention has the characteristics of noresidue, wide material sources and buying facilitate.
2nd, the method for technical solution of the present invention use is simple to operate, one-time investment is small, be easy to industrialized production.
3rd, the method that technical solution of the present invention is used has the characteristics of processing cost is low, treatment effect is stable.4th, this hair
Bright technical scheme is compared with existing resin adsorption method, the step of eliminating regeneration, follow-up ring
Packing pressure is small.
5th, the operation of technical solution of the present invention is used method is flexible, can according in actual product smell substance content it is many
Chemical feeding quantity is adjusted less, and adaptability is stronger.
6th, the purified salt after technical solution of the present invention is handled can reach free from extraneous odour, meet the phase of latest edition national standard
Close regulation.
7th, total organic content is in purified salt before processing sample：430.0mg/kg (is converted) with butyric acid, and butyric acid content is
92.2mg/kg；Total volatile organism content can be down to below 5mg/kg, fourth in sample after technical solution of the present invention is handled
It is sour then do not detect.
Brief description of the drawings：
The gas chromatogram of Fig. 1 purified salt before processing samples；
The gas chromatogram of sample after the processing of Fig. 2 embodiment of the present invention 1；
The gas chromatogram of sample after the processing of Fig. 3 embodiment of the present invention 2；
The gas chromatogram of sample after the processing of Fig. 4 embodiment of the present invention 3；
The gas chromatogram of sample after the processing of Fig. 5 embodiment of the present invention 4；
The gas chromatogram of sample after the processing of Fig. 6 embodiment of the present invention 5；
The gas chromatogram of sample after the processing of Fig. 7 embodiment of the present invention 6；
The gas chromatogram of sample after the processing of Fig. 8 embodiment of the present invention 7；
The gas chromatogram of sample after the processing of Fig. 9 embodiment of the present invention 8；
The gas chromatogram of sample after the processing of Figure 10 embodiment of the present invention 9；
The gas chromatogram of sample after the processing of Figure 11 embodiment of the present invention 10；
The gas chromatogram of sample after the processing of Figure 12 embodiment of the present invention 11；
The gas chromatogram of sample after the processing of Figure 13 embodiment of the present invention 12.
Embodiment：
The present invention is expanded on further with reference to embodiments, but is not intended to limit present disclosure.
Embodiment 1：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 4.5g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 3.5g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 5g, and default temperature is put it into after mixing
Spend in the baking oven for 75 DEG C, drying temperature is set；
Final drying temperature is set in c, step b as 105 DEG C, drying time is 30min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 7.20mg/kg,
Butyric acid content is 0.47mg/kg；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt
（Refer to accompanying drawing 2）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Untreated purified salt sample employed in following examples is identical with the present embodiment.
Embodiment 2：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 2.5g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 4.0g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 2.0g, are put it into after mixing default
Temperature is in 60 DEG C of baking oven, sets drying temperature；
Final drying temperature is set in c, step b as 125 DEG C, drying time is 12min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 16.1mg/kg,
Butyric acid content is 0.73mg/kg；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt
（Refer to accompanying drawing 3）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 3：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 4.0g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 2.5g, are put it into after mixing default
Temperature is in 60 DEG C of baking oven, sets drying temperature；
Final drying temperature is set in c, step b as 130 DEG C, drying time is 12min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 8.23mg/kg,
Butyric acid content is 0.57mg/kg；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt
（Refer to accompanying drawing 4）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 4：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, the aqueous hydrogen peroxide solution that mass percentage concentration is 50% is added into mixture obtained by step a
3.5g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 0.5g, and default temperature is put it into after mixing
Spend in the baking oven for 75 DEG C, drying temperature is set；
Final drying temperature is set in c, step b as 110 DEG C, drying time is 20min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 10.7mg/kg,
Butyric acid is not detected；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt（Refer to accompanying drawing
5）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 5：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.0g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, the aqueous hydrogen peroxide solution that mass percentage concentration is 50% is added into mixture obtained by step a
3.5g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 1.0g, and default temperature is put it into after mixing
Spend in the baking oven for 75 DEG C, drying temperature is set；
Final drying temperature is set in c, step b as 120 DEG C, drying time is 20min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 8.95mg/kg,
Butyric acid is not detected；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt（Refer to accompanying drawing
6）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 6：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 4.0g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 2.5g, are put it into after mixing default
Temperature is in 35 DEG C of baking oven, sets drying temperature；
Final drying temperature is set in c, step b as 140 DEG C, drying time is 20min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 4.36mg/kg,
Butyric acid is not detected；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt（Refer to accompanying drawing
7）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 7：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 1.0g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 0.5g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 2.5g, are put it into after mixing default
Temperature is in 35 DEG C of baking oven, sets drying temperature；
Final drying temperature is set in c, step b as 85 DEG C, drying time is 30min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 9.30mg/kg,
Butyric acid content is 0.60mg/kg；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt
（Refer to accompanying drawing 8）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 8：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, the aqueous hydrogen peroxide solution that mass percentage concentration is 20% is added into mixture obtained by step a
2.5g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 0.5g, and default temperature is put it into after mixing
Spend in the baking oven for 45 DEG C, drying temperature is set；
Final drying temperature is set in c, step b as 120 DEG C, drying time is 25min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 9.37mg/kg,
Butyric acid content is 0.56mg/kg；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt
（Refer to accompanying drawing 9）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 9：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refined edible salt weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 5.0g is well mixed, and is put it into after mixing in the baking oven that preset temperature is 75 DEG C, is set drying temperature；
Final drying temperature is set in c, step b as 120 DEG C, drying time is 25min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 3.06mg/kg,
Butyric acid is not detected；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt（Refer to accompanying drawing
10）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 10：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refining industrial salts weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, the aqueous hydrogen peroxide solution that mass percentage concentration is 20% is added into mixture obtained by step a
2.5g and mass percentage concentration are well mixed for 20% aqueous sodium hypochlorite solution 0.5g, and default temperature is put it into after mixing
Spend in the baking oven for 45 DEG C, drying temperature is set；
Final drying temperature is set in c, step b as 120 DEG C, drying time is 25min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 7.20mg/kg,
Butyric acid is not detected；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt（Refer to accompanying drawing
11）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 11：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, the hydrochloric acid for being first 36% by mass percentage concentration are diluted with water into the watery hydrochloric acid that mass percentage concentration is 7%, continuous
Gained watery hydrochloric acid 3.2g is added under conditions of stirring in the 500g refining industrial salts weighed, is stirred well to the two mixing equal
It is even, obtain mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 3.5g and mass percentage concentration are well mixed for 20% aqueous sodium hypochlorite solution 2.5g, are put it into after mixing default
Temperature is in 55 DEG C of baking oven, sets drying temperature；
Final drying temperature is set in c, step b as 120 DEG C, drying time is 25min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 5.08mg/kg,
Butyric acid is not detected；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt（Refer to accompanying drawing
12）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Embodiment 12：
The method that the present invention removes peculiar smell in purified salt, the detailed step of this method is as follows：
A, first by citric acid be diluted with water into mass percentage concentration be 20% citric acid solution, under conditions of being stirred continuously
Gained citric acid solution 3.5g is added in the 500g refined edible salt weighed, is stirred well to the two and is well mixed, obtain
Mixture；
B, under conditions of stirring, mass percentage concentration is added into mixture obtained by step a water-soluble for 27.5% hydrogen peroxide
Liquid 3.5g and mass percentage concentration are well mixed for 10% sodium chlorite aqueous solution 1.0g, are put it into after mixing default
Temperature is in 55 DEG C of baking oven, sets drying temperature；
Final drying temperature is set in c, step b as 120 DEG C, drying time is 25min；
D, to the sample after drying with gas chromatography determine each component content, total volatile organism content be 9.72mg/kg,
Butyric acid content is 0.64mg/kg；Total volatile organism, butyric acid content reach the standard content requirement of free from extraneous odour purified salt
（Refer to accompanying drawing 13）.
Total volatile organism content is 430.0mg/kg in untreated purified salt sample, and butyric acid content is 92.2mg/kg.
Claims (7)
1. a kind of method for removing peculiar smell in purified salt, it is characterised in that the minimizing technology comprises the following steps：
A, feed purification salt is weighed, initiator is added under conditions of being stirred continuously, the addition of the initiator accounts for purified salt
The 2 of weight~10 ‰, are stirred well to the two and are well mixed, obtain mixture；
B, under conditions of stirring, add aqueous hydrogen peroxide solution into mixture obtained by step a and sodium chlorite aqueous solution enter
Row is well mixed, is put it into after mixing in the baking oven of preset temperature, sets drying temperature；The aqueous hydrogen peroxide solution plus
It is 1~the 10 ‰ of purified salt weight to enter amount, and the addition of sodium chlorite aqueous solution is 0~the 10 ‰ of purified salt weight；
Or, under conditions of stirring, aqueous hydrogen peroxide solution, sodium chlorite aqueous solution are added into mixture obtained by step a
It is well mixed with aqueous sodium hypochlorite solution, is put it into after mixing and drying temperature is set in baking oven；The aquae hydrogenii dioxidi
The addition of solution is 1~the 10 ‰ of purified salt weight, the addition of sodium chlorite aqueous solution for purified salt weight 0~
10 ‰, the addition of aqueous sodium hypochlorite solution is 1~the 5 ‰ of purified salt weight；
Drying temperature is set in c, step b as 85~140 DEG C, drying time is 10~30min；
D, products obtained therefrom purified salt after drying is analyzed using headspace gas chromatography, and calculate containing for residual smell substance
Amount.
2. the method according to claim 1 for removing peculiar smell in purified salt, it is characterised in that：Purified salt described in step a
For refining industrial salt or refined edible salt.
3. the method according to claim 1 for removing peculiar smell in purified salt, it is characterised in that：Initiator described in step a
For hydrochloric acid or citric acid.
4. the method according to claim 1 for removing peculiar smell in purified salt, it is characterised in that：Peroxidating described in step b
The mass percentage concentration of aqueous solution of hydrogen is 3~60%；The mass percentage concentration of sodium chlorite aqueous solution is 5~50%；Described chlorine
The mass percentage concentration of acid sodium aqueous solution is 20%.
5. the method according to claim 4 for removing peculiar smell in purified salt, it is characterised in that：The aqueous hydrogen peroxide solution
Mass percentage concentration be 20~50%；The mass percentage concentration of the sodium chlorite aqueous solution is 10~25%.
6. the method according to claim 1 for removing peculiar smell in purified salt, it is characterised in that：Temperature is preset described in step b
Spend for 35~75 DEG C.
7. the method according to claim 1 for removing peculiar smell in purified salt, it is characterised in that：The initiator, peroxidating
Hydrogen, sodium chlorite and sodium hypochlorite are food-grade.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108584988A (en) * | 2018-04-11 | 2018-09-28 | 郑州大学 | A kind of deep purifying edible salt mixes the method for smell substance |
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