CN1157285A - Process for producing nicotine - Google Patents
Process for producing nicotine Download PDFInfo
- Publication number
- CN1157285A CN1157285A CN 96101752 CN96101752A CN1157285A CN 1157285 A CN1157285 A CN 1157285A CN 96101752 CN96101752 CN 96101752 CN 96101752 A CN96101752 A CN 96101752A CN 1157285 A CN1157285 A CN 1157285A
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- CN
- China
- Prior art keywords
- sulfuric acid
- distillate
- filter
- concentrated
- nicotine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The production process of nicotine sulfate includes the following steps: soaking tobaco leaf in water; using sulfuric acid to regulate pH to 3; obtaining extract; heating extract in reactor; filtering by centrifugal machine; concentrating and filtering filtrate so as to obtain purified liquor; adding industrial caustic soda in the purified liquor at a certain proportion; making distillation; using sulfuric acid to regulate distillate pH to 4; then concentrating the distillate to nicotine content more than 40%; filtering and packing so as to obtain the invented product. Said ivnention features simple technological process, low cost and free from organic solvent treatment.
Description
The invention belongs to a kind of from tobacco leaf the technology of extraction nicotine.
The method of extracting nicotine sulfate at present from tobacco leaf is a lot, in these methods, owing to adopt organic solvent to make extraction agent, its complex process, production cost is increased, and is unfavorable for the application of product.
The objective of the invention is: a kind of method that does not need organic solvent process for producing nicotine sulfate is provided, thereby reduces production costs, make product obtain better utilised.
The present invention constitutes like this: it is formed by soaking, purify, distill, concentrate several steps, and tobacco leaf is soaked in water, and the sulfuric acid with 98% is adjusted to PH3～4, and cover is dipped into leach liquor and reaches more than 3 Baumes; Leach liquor added be heated to 80 ℃ in the retort, kept 2 hours, filter with whizzer; Filtrate is concentrated with thin-film evaporator earlier, being concentrated into relative density with vacuum concentration pot again is 1.3 again, filter scavenging solution; Get scavenging solution and add industrial caustic soda with 10: 1 ratio, distill with extractor then, distillate is adjusted to PH4 with 98% sulfuric acid; At last distillate is concentrated into and contains nicotine and be not less than 40%, filter and package promptly.
The present invention compared with prior art, it is simple to have a technical process, does not need organic solvent to handle, low cost and other advantages is compared with other method, cost decreases 30%, and less demanding to production unit, easy to implement, the utmost point is beneficial to be applied.
Enforcement of the present invention is sharp; Inferior tobacco leaf is soaked in water, and the sulfuric acid with 98% is adjusted to PH3, and cover is dipped into leach liquor and reaches more than 3 Baumes; Leach liquor added be heated to 80 ℃ in the retort, kept 2 hours, filter with whizzer; Filtrate is concentrated with thin-film evaporator earlier, being concentrated into relative density with vacuum concentration pot again is 1.3 again, filter scavenging solution; Get scavenging solution and add industrial caustic soda with 10: 1 ratio, distill with extractor then, distillate is adjusted to PH4 with 98% sulfuric acid; At last with the distillate vacuum concentration to containing nicotine 45%, filter and package promptly.
Claims (1)
1, a kind of production technique of nicotine sulfate is formed by soaking, purify, distill, concentrate several steps, and it is characterized in that: tobacco leaf is soaked in water, and the sulfuric acid with 98% is adjusted to PH3～4, and cover is dipped into leach liquor and reaches more than 3 Baumes; Leach liquor added be heated to 80 ℃ in the retort, kept 2 hours, filter with whizzer; Filtrate is concentrated with thin-film evaporator earlier, being concentrated into relative density with vacuum concentration pot again is 1.3 again, filter scavenging solution; Get scavenging solution and add industrial caustic soda with 10: 1 ratio, distill with extractor then, distillate is adjusted to PH4 with 98% sulfuric acid; At last distillate is concentrated into and contains nicotine and be not less than 40%, filter and package promptly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96101752 CN1157285A (en) | 1996-02-12 | 1996-02-12 | Process for producing nicotine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96101752 CN1157285A (en) | 1996-02-12 | 1996-02-12 | Process for producing nicotine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1157285A true CN1157285A (en) | 1997-08-20 |
Family
ID=5117251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96101752 Pending CN1157285A (en) | 1996-02-12 | 1996-02-12 | Process for producing nicotine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1157285A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422277B (en) * | 2008-12-02 | 2010-12-15 | 广东省金叶烟草薄片技术开发有限公司 | Method for adjusting and controlling nicotine content in tobacco extract |
| CN103688935A (en) * | 2013-12-13 | 2014-04-02 | 云南省烟草公司红河州公司 | Preparation method of nicotinic type biological pesticide by using waste fresh tobacco leaves |
| CN114605382A (en) * | 2020-12-04 | 2022-06-10 | 上海烟草集团有限责任公司 | Nicotine and preparation method thereof |
-
1996
- 1996-02-12 CN CN 96101752 patent/CN1157285A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422277B (en) * | 2008-12-02 | 2010-12-15 | 广东省金叶烟草薄片技术开发有限公司 | Method for adjusting and controlling nicotine content in tobacco extract |
| CN103688935A (en) * | 2013-12-13 | 2014-04-02 | 云南省烟草公司红河州公司 | Preparation method of nicotinic type biological pesticide by using waste fresh tobacco leaves |
| CN114605382A (en) * | 2020-12-04 | 2022-06-10 | 上海烟草集团有限责任公司 | Nicotine and preparation method thereof |
| CN114605382B (en) * | 2020-12-04 | 2023-12-22 | 上海烟草集团有限责任公司 | Nicotine and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |