CN103664459A - Production process for continuously fractionating and purifying dihydromyrcene by using two towers - Google Patents
Production process for continuously fractionating and purifying dihydromyrcene by using two towers Download PDFInfo
- Publication number
- CN103664459A CN103664459A CN201310557395.0A CN201310557395A CN103664459A CN 103664459 A CN103664459 A CN 103664459A CN 201310557395 A CN201310557395 A CN 201310557395A CN 103664459 A CN103664459 A CN 103664459A
- Authority
- CN
- China
- Prior art keywords
- dihydromyrcene
- rectifying
- production technique
- pinene
- pinane
- 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.)
- Pending
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a production process for continuously fractionating and purifying dihydromyrcene by using two towers. The production process mainly comprises the following steps: rectifying high quality turpentine by using a first rectifying tower to obtain alpha-pinene; carrying out hydrogenation reaction on the alpha-pinene in the presence of hydrogen and a nickel catalyst to generate pinane; heating and cracking the pinane to obtain a crude product of the dihydromyrcene; and purifying the crude product by using a second rectifying tower to obtain a finished product of the dihydromyrcene. The production process of the dihydromyrcene, provided by the invention, is simple and the product has very high purity via the two rectifying towers.
Description
Technical field
The present invention relates to a kind of production technique of field of fine chemical, especially relate to a kind of production technique of double tower continuous rectification purification dihydromyrcene.
Background technology
Dihydromyrcene is a kind of good synthetic perfume and medicine intermediate.Synthetic its derived product of primary product dihydromyrcene of research and utilization pinane cracking is of great significance for the turps resource tool of comprehensive utilization China's abundant.The isomerization product of pinane is multiple terpene blend often, and its boiling-point difference is very little, and also has unreacted cis-pinane and trans pinane, so the separation and purification of product is very difficult.
Summary of the invention
The production technique that the object of this invention is to provide a kind of double tower continuous rectification purification dihydromyrcene.
What the present invention solved is the dihydromyrcene complex manufacturing existing in prior art, the defect that product purity is not high.
The technical scheme that technical solution problem of the present invention adopts is: a kind of production technique of double tower continuous rectification purification dihydromyrcene, and described production technique mainly comprises the following steps: high-quality turps can obtain α-pinene after the first rectifying tower rectifying; Under the effect of hydrogen and nickel catalyzator, there is hydrogenation reaction and generate pinane in α-pinene; Described pinane can obtain dihydromyrcene crude product after heating pyrolyze; Described crude product can obtain dihydromyrcene finished product after Second distillation column purifying.
In described the first rectifying tower rectifying, also can produce two kinds of by products: head, pin oil and beta-pinene.
In described Second distillation column rectifying, also can produce two kinds of by products: head, pin oil and mixed olefins.
Hydrogen in described hydrogenation reaction is that methyl alcohol and de-salted water obtain by cracking.
The invention has the beneficial effects as follows: compared with prior art, the production technique of dihydromyrcene provided by the invention, operation is simple, product has very high purity after two-stage rectification tower.
Accompanying drawing explanation
Fig. 1 is production technological process of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of production technique of double tower continuous rectification purification dihydromyrcene, described production technique mainly comprises the following steps: high-quality turps can obtain α-pinene after the first rectifying tower rectifying; Under the effect of hydrogen and nickel catalyzator, there is hydrogenation reaction and generate pinane in α-pinene; Described pinane can obtain dihydromyrcene crude product after heating pyrolyze; Described crude product can obtain dihydromyrcene finished product after Second distillation column purifying.In described the first rectifying tower rectifying, also can produce two kinds of by products: head, pin oil and beta-pinene.In described Second distillation column rectifying, also can produce two kinds of by products: head, pin oil and mixed olefins.Hydrogen in described hydrogenation reaction is that methyl alcohol and de-salted water obtain by cracking.
Claims (4)
1. a production technique for double tower continuous rectification purification dihydromyrcene, is characterized in that described production technique mainly comprises the following steps: high-quality turps can obtain α-pinene after the first rectifying tower rectifying; Under the effect of hydrogen and nickel catalyzator, there is hydrogenation reaction and generate pinane in α-pinene; Described pinane can obtain dihydromyrcene crude product after heating pyrolyze; Described crude product can obtain dihydromyrcene finished product after Second distillation column purifying.
2. the production technique of a kind of double tower continuous rectification purification dihydromyrcene as claimed in claim 1, is characterized in that also can producing in described the first rectifying tower rectifying two kinds of by products: head, pin oil and beta-pinene.
3. the production technique of a kind of double tower continuous rectification purification dihydromyrcene as claimed in claim 1, is characterized in that also can producing in described Second distillation column rectifying two kinds of by products: head, pin oil and mixed olefins.
4. the production technique of a kind of double tower continuous rectification purification dihydromyrcene as claimed in claim 1, is characterized in that the hydrogen in described hydrogenation reaction is that methyl alcohol and de-salted water obtain by cracking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557395.0A CN103664459A (en) | 2013-11-12 | 2013-11-12 | Production process for continuously fractionating and purifying dihydromyrcene by using two towers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310557395.0A CN103664459A (en) | 2013-11-12 | 2013-11-12 | Production process for continuously fractionating and purifying dihydromyrcene by using two towers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103664459A true CN103664459A (en) | 2014-03-26 |
Family
ID=50303358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310557395.0A Pending CN103664459A (en) | 2013-11-12 | 2013-11-12 | Production process for continuously fractionating and purifying dihydromyrcene by using two towers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103664459A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909988A (en) * | 2015-04-17 | 2015-09-16 | 广西藤县通轩立信化学有限公司 | Method for preparing dihydromyrcenol from turpentine |
| CN108658719A (en) * | 2018-06-22 | 2018-10-16 | 福州大学 | A kind of method of purification of laurene |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239885A (en) * | 2007-02-09 | 2008-08-13 | 嘉兴香料厂 | Technique for synthesizing dihydromyrcenol |
| CN101544537A (en) * | 2008-03-25 | 2009-09-30 | 西安航天华威化工生物工程有限公司 | Method for producing low carbon chemical ethanol from C6 sugar alcohol |
-
2013
- 2013-11-12 CN CN201310557395.0A patent/CN103664459A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239885A (en) * | 2007-02-09 | 2008-08-13 | 嘉兴香料厂 | Technique for synthesizing dihydromyrcenol |
| CN101544537A (en) * | 2008-03-25 | 2009-09-30 | 西安航天华威化工生物工程有限公司 | Method for producing low carbon chemical ethanol from C6 sugar alcohol |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909988A (en) * | 2015-04-17 | 2015-09-16 | 广西藤县通轩立信化学有限公司 | Method for preparing dihydromyrcenol from turpentine |
| CN108658719A (en) * | 2018-06-22 | 2018-10-16 | 福州大学 | A kind of method of purification of laurene |
| CN108658719B (en) * | 2018-06-22 | 2021-01-29 | 福州大学 | Purification method of myrcene |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102146019B (en) | Method for preparing alcohols from olefin | |
| CN102070391B (en) | The method of comprehensive utilization mixed c 4 preparing isobutene | |
| CN100441554C (en) | Method of utilizing cracked, C5 fraction | |
| CN103193595B (en) | Ethylene glycol rectification device system and rectification technique in industry of producing ethylene glycol by synthesis gas | |
| CN102690172A (en) | Method for producing isopropanol by acetone hydrogenation | |
| CN104926587A (en) | Energy-saving process flow of 1-butene separation purification | |
| CN103254038B (en) | Method for preparing cyclohexanol by using benzene | |
| CN103664459A (en) | Production process for continuously fractionating and purifying dihydromyrcene by using two towers | |
| WO2010081700A3 (en) | Process for the production of lower alcohols by olefin hydration | |
| CN101967078A (en) | Crude benzene hydrofining method | |
| CN104355960B (en) | A kind of method by preparing propylene from methanol and BTX | |
| CN104591952A (en) | Method for refining mesitylene by virtue of differential pressure thermal coupling rectification | |
| WO2010082772A3 (en) | Process for preparing high purity butanol | |
| CN111116290B (en) | Energy expanding method for olefin cracking device | |
| CN101891578B (en) | New method for producing dihydromyrcene | |
| CN102675030B (en) | Process method for directly separating petroleum resin raw materials from cracking C9 fraction | |
| CN202516333U (en) | Crude methanol purification and rectification device | |
| CN101260025A (en) | Separation purification method for producing isobutyl alcohol by methylacrolein hydrogenation | |
| CN104557409B (en) | The method of the amylene of high-purity 1 | |
| CN203174007U (en) | Ethylene glycol rectification device system in ethylene glycol production industry through synthesis gas | |
| CN207828188U (en) | A kind of rectifier unit producing high-quality lightweight white oil by base oil | |
| CN103304362A (en) | Preparation method of high purity cyclopentene | |
| CN102206137A (en) | Method for synthesizing citronellol by liquid phase hydrogenation of citral | |
| CN104557410A (en) | A method of preparing high-purity 1-pentene | |
| CN103214365A (en) | Method for producing cyclohexyl acetate through benzene |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Jiaxing City, Zhejiang province 314000 Nanhu District of new Fengzhen new Lotus Road No. 580 Applicant after: ZHEJIANG DONGPING PERFUME Co.,Ltd. Address before: Jiaxing City, Zhejiang province 314000 Nanhu District of new Fengzhen new Lotus Road No. 580 Applicant before: Dongping Jiaxing spice Co.,Ltd. Address after: Jiaxing City, Zhejiang province 314000 Nanhu District of new Fengzhen new Lotus Road No. 580 Applicant after: Dongping Jiaxing spice Co.,Ltd. Address before: Jiaxing City, Zhejiang province 314000 Nanhu District of new Fengzhen new Lotus Road No. 580 Applicant before: Jiaxing Perfume Factory |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: JIAXING DONGPING SPICE CO., LTD. TO: ZHEJIANG DONGPING SPICES CO., LTD. Free format text: CORRECT: APPLICANT; FROM: JIAXING PERFUME FACTORY TO: JIAXING DONGPING SPICE CO., LTD. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |