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Hebei Yunsheng Biological Technology Co., Ltd.

Contact Person: Ms. Eva Lee

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The principle of insoluble saccharin preparation
Edit:Hebei Yunsheng Biological Technology Co., Ltd.   PublicDate:2020-08-24

Insoluble saccharinIt is a relatively common additive that can be used as an intermediate in the production of pesticides in industry, and is often used in the production of fungicides and herbicides in agriculture. At the same time, in the food industry, insoluble saccharin can be slowly dissolved in the oral cavity, so insoluble saccharin can be used to prepare chewing gum. So what is our process when preparing insoluble saccharin?

When potassium permanganate or sodium permanganate is used as an oxidant, since o-toluenesulfonamide (insoluble saccharin) is difficult to dissolve in water, the insoluble saccharin must be prepared into sodium salt first. Potassium permanganate and sodium permanganate Perform oxidation. After being prepared into soluble sodium saccharin, our process in the production process is oxidation, chlorosulfonation, acid precipitation and other processes. At the same time, in the process of acid precipitation, the amount of excellent carboxyphenyl amide is very small, and the solubility in hot water is very large. It is only necessary to maintain a certain temperature during acid precipitation of insoluble saccharin so that it can be brought into the waste water along with the waste water. In the pool, the insoluble saccharin can be made free of this substance.

When preparing insoluble saccharin, we use potassium permanganate and sodium permanganate as oxidants, which can also be divided into three oxidation schemes. The first solution is to use potassium permanganate as the oxidant, and put the o-toluene sulfonamide, concentrated alkali and water into a reactor with stirring function in a certain proportion. Within a certain temperature range, we put the permanganate Potassium is gradually added in a certain amount of potassium permanganate within 5 hours, and the temperature is kept for 6.5 hours. After cooling and decolorization, the manganese dioxide is filtered out.

For the second option, we use sodium permanganate as the oxidant. The time limit for sodium permanganate addition is within 2 hours and the temperature is kept for three hours.

In the third scheme, we use a mixture of potassium permanganate and sodium permanganate as a catalyst, and the weight ratio of potassium permanganate to sodium permanganate is 8:7. Within a certain temperature control range, put the mixture in within 2 hours and keep it warm for 3 hours.

Through data measurement, we know that the yields of the above three different oxidation schemes are 80%, 83%, and 85%, respectively.

不溶性糖精