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A preservative and stabilizer technology, applied in the field of preservatives and their preparation, can solve the problems of poor stability of preservatives and the influence of protected products, and achieve the effect of ensuring long-term stability and wide application range
Inactive Publication Date: 2019-03-05
三博生化科技(上海)有限公司
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Abstract
Description
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Problems solved by technology
[0012] In order to solve the problem of poor stability of preservatives in the prior art or the introduction of heavy metals and high-concentration salts into the preservatives that will affect the environment and the protected product itself, the purpose of the present invention is to provide a preservative and its preparation method
Method used
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Embodiment 1
[0027] A preparation method of preservative, comprising the steps of:
[0028] S1, weigh 5000g of Cathone 14%, 500g of 2-bromo-2-nitropropane, 94.5kg of water;
[0029] S2, putting the Casson in S1 into the reactor and stirring;
[0030] S3, adding water and 2-bromo-2-nitropropane in S1 to the stirred system in S2, and stirring to obtain a preservative.
Embodiment 2
[0032] A preparation method of preservative, comprising the steps of:
[0033] S1, weigh 20 kg Cathone 14%, 100 g 2-bromo-2-nitro-1,3-propanediol, 79.9 kg water;
[0034] S2, putting the Casson in S1 into the reactor and stirring;
[0035] S3, adding water and 2-bromo-2-nitro-1,3-propanediol in S1 to the stirred system in S2, and stirring to obtain a preservative.
Embodiment 3
[0037] A preparation method of preservative, comprising the steps of:
[0038] S1, weigh 50 kg Cathone 14%, 10 kg 2.2-dibromo-3-cyanopropionamide, 40 kg water;
[0039] S2, putting the Casson in S1 into the reactor and stirring;
[0040] S3, adding water and 2.2-dibromo-3-cyanopropionamide in S1 to the stirred system in S2, and stirring to obtain a preservative.
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PUM
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Abstract
The invention discloses a preservative and a preparation method thereof. The preservative comprises the following components in percentage by mass: 0.7-7 parts of isothiazolinone, 0.1-10 parts of a bromine-containing stabilizer and 40-90 parts of water. According to the preservative disclosed by the invention, introduction of heavy metals or nitrates is avoided, the environment is not avoided, andmeanwhile, the physical morphology of a protected product is not damaged. The preservation ensures long-term stability of the protected product, and the content of 5-chloro-2-methylisothiazolinone inthe system is not consumed after the protected product is stored in an environment of 54 DEG C for 30 days. The preservative provided by the invention can be diluted into different concentrations, cross-linking reaction is avoided, and the application range is wide.
Description
technical field [0001] The invention relates to the technical field of antiseptic reagents, in particular to an antiseptic and a preparation method thereof. Background technique [0002] At present, the most widely used preservatives on the market are isothiazolinone products, especially 5-chloro-2-methylisothiazolinone, referred to as Kathon, which is usually sold as a raw material of 14% concentrated solution. It is currently Occupy 40% of the market of industrial preservatives. Kathon 14% itself is unstable, and the final product prepared by diluting Kathon 14% is even more unstable, requiring a high concentration of nitrate to stabilize. For example, the most widely used Dow Kathon LXE in the world is Kathon 14%. Diluent, it uses copper nitrate, magnesium nitrate and magnesium chloride as stabilizers, and the others are water. Kathon LXE or a similar product is formulated as: [0003] Casson 14% 7-20% [0004] Copper nitrate 0.1-0.3% [0005] Magnesium nitrate 1-20%...
Claims
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Application Information
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