EP4107124A1 - Verfahren zur herstellung von limonen und zusammensetzung enthaltend limonen - Google Patents
Verfahren zur herstellung von limonen und zusammensetzung enthaltend limonenInfo
- Publication number
- EP4107124A1 EP4107124A1 EP20706439.5A EP20706439A EP4107124A1 EP 4107124 A1 EP4107124 A1 EP 4107124A1 EP 20706439 A EP20706439 A EP 20706439A EP 4107124 A1 EP4107124 A1 EP 4107124A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- limonene
- pinene
- beta
- reactor
- zeolite
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/31—Rearrangement of carbon atoms in the hydrocarbon skeleton changing the number of rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/084—Y-type faujasite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/7038—MWW-type, e.g. MCM-22, ERB-1, ITQ-1, PSH-3 or SSZ-25
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2529/00—Catalysts comprising molecular sieves
- C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
- C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- C07C2529/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups C07C2529/08 - C07C2529/65
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated
Definitions
- Limonene is a natural product from the group of monocyclic terpenes that occurs in two enantiomers the (/?) - (+) - limonene (also called D - (+) - limonene or (+) - limonene for short) and the (S) - (-) - limonene (also called L - (-) - Limonen or (-) - Limonen for short).
- the racemate of the two enantiomers is also called dipentene.
- Limonene is the most common monoterpene found in plants.
- (/?) - (+) - Limonene is mainly found in bitter orange peel oil, caraway seed oil, dill oil, coriander oil, lemon oil (approx. 65%) and orange oil (mostly> 90%). It has an orange-like odor.
- (S) - (-) - limonene is contained in silver fir and peppermint oil and smells like turpentine. The racemic limonene is found in pine oil, Siberian spruce needle oil, neroli oil, nutmeg oil and camphor oil, among others.
- limonene is an essential raw material for the fragrance industry and starting material for a variety of applications and products. In particular, it has recently also been used as a “green” solvent and represents an alternative to the BTX solvents, which are questionable from an ecological point of view.
- Beta-pinene is a readily available source for the production of limonene, but the difficulty in the acid-catalyzed isomerization of ß-pinene there is, however, the possibility of the formation of a broad product spectrum of bi-, tri- and monocyclic terpenes via a series of equilibrium reactions, which must be avoided in order to achieve a high limonene selectivity Excerpt from this possible product range is shown below.
- a first object of the present invention was therefore to provide a process for the continuous isomerization of beta-pinene to limonene which has yields and selectivities of at least 65%, preferably at least 75%, and is a by-product largely (ie about 15 to 20% by weight) only supplies camphene.
- the limonene should be specifically (> 90% by weight) as an L-isomer.
- Another object was to carry out the process in such a way that the use of toxic solvents, especially from the BTX series, can be entirely or at least partially dispensed with if possible.
- the reaction should also be feasible below 100 ° C. and the catalyst should have such a long service life that it can be used and recycled several times even without working up.
- a first subject of the invention relates to a continuous process for the production of limonene, which is characterized in that beta-pinene or beta-pinene-containing starting materials are isomerized in a trickle bed reactor in the presence of acidic catalysts.
- beta-pinene can exist in two enantiomeric forms, namely (S, S) and (R, R). Accordingly, the term “beta-pinene” in the context of the present invention encompasses both forms or mixtures thereof.
- the preferred feedstock is (IS, 5S) beta-pinene, which is also referred to as (-) - beta-pinene.
- (IR, 5R) beta-pinene which is also referred to as (+) - beta-pinene, is particularly preferred, since enantiomerically pure D-limonene can be obtained in this way.
- the isomerization takes place in the presence of solid acids; Brönsted or Lewis acids are preferably used as heterogeneous catalysts.
- Zeolites in particular are suitable for this purpose, especially those selected from the group formed by the types Y, H-Beta, ZSM-5 and MMW.
- MWW zeolites of the MCM-22 or PSH-3 type are particularly given.
- MWW means a type of zeolite as shown in Figure 2 (cf. pubs.acs.org/doi/abs/10.1021/jp972319k).
- MWW zeolites consist of two separate ten-ring pore systems. A distinction is made between variants A and B, in which the cavities are linked linearly on the one hand and sinusoidally on the other.
- MWW zeolites which have previously been calcined and / or activated by acids.
- Zeolites of the MCM-22 or PSH-3 type those of the formula
- M 2 / nO * Al2O3 * (20-150) SiO 2 are known, for example, from EP 0064205 B1 (BAYER). It is preferred to calcine the MMW zeolites and / or to activate them by acid treatment before use.
- the calcination can preferably take place over a period of about 1 to about 10 hours and preferably 4 to 6 hours at a temperature of about 400 to about 1,000 ° C and in particular 400 to 600 ° C; nitric acid is particularly suitable for acid activation .
- MCM-22 zeolites which have previously been calcined and activated with nitric acid are very particularly preferred.
- Trickle bed reactors are essentially known from wastewater treatment.
- the starting material is added to the top of the reactor and then trickles through the catalytic fixed bed in which the isomerization takes place.
- an inert gas especially nitrogen, which is conducted concurrently, but preferably in countercurrent, since in this way oxidative degradation reactions can be avoided and the service life of the catalyst is increased.
- Suitable solvents are aprotic solvents such as C ö -Cs-alkanes, especially heptane, 1,4-dioxane or acetic acid Ci-C4 alkyl ester, especially ethyl acetate.
- the mass ratio of solvent to ß-pinene is preferably between 90:10 and 50:50, a ratio of about 80:20 is preferred. It has proven to be possible and advantageous to carry out the process under mild conditions, namely at a temperature in the range from 50 to 120.degree. C. and in particular at around 70 to 80.degree. C. and at a pressure in the range from 1 to 10 to be carried out bar and in particular at about 2 to 4 bar.
- Another object of the present invention relates to a solvent composition which is obtainable or is obtained according to the present process, consisting of
- Zeolites of the MMC-22 type optionally after previous calcination and / or acid activation, as a catalyst for the rearrangement of beta-pinene into limonene in a process as explained above.
- the liquid feed was supplied via an HPLC pump and argon via a mass flow controller
- the temperature, pressure and flows were monitored and adjusted using associated software.
- the granulated catalyst was poured into the center of the reactor tube. Free reactor volume above and below the catalyst bed was filled with inert granules.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2020/054233 WO2021164852A1 (de) | 2020-02-18 | 2020-02-18 | Verfahren zur herstellung von limonen und zusammensetzung enthaltend limonen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4107124A1 true EP4107124A1 (de) | 2022-12-28 |
Family
ID=69645955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20706439.5A Pending EP4107124A1 (de) | 2020-02-18 | 2020-02-18 | Verfahren zur herstellung von limonen und zusammensetzung enthaltend limonen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12049441B2 (de) |
| EP (1) | EP4107124A1 (de) |
| CN (1) | CN115210180B (de) |
| BR (1) | BR112022013640A2 (de) |
| MY (1) | MY208759A (de) |
| WO (1) | WO2021164852A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY208759A (en) | 2020-02-18 | 2025-05-27 | Symrise Ag | Process for preparing limonene and composition containing limonene |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270075A (en) | 1965-02-16 | 1966-08-30 | Glidden Co | Catalytic terpene isomerization process |
| US3780125A (en) | 1972-12-18 | 1973-12-18 | E Takacs | Isomerization of alpha-pinene-containing feed by zeolite |
| US3780124A (en) | 1973-02-26 | 1973-12-18 | Arizona Chem | Molecular sieve 13x catalyzed isomerization of alpha-pinene-improvement of catalyst activity by iodine |
| DE3117135A1 (de) | 1981-04-30 | 1982-11-18 | Bayer Ag, 5090 Leverkusen | Kristallines alumosilicat, verfahren zu dessen herstellung sowie dessen verwendung zur katalytischen umwandlung von methanol und/oder dimethylether in kohlenwasserstoffe |
| US4508930A (en) | 1984-07-20 | 1985-04-02 | The Goodyear Tire & Rubber Company | Process for the conversion of terpenes to limonene |
| CN1003644B (zh) * | 1986-08-26 | 1989-03-22 | 中国科学院广州化学研究所 | 天然丝光沸石催化合成单萜基醚 |
| CN102126904B (zh) * | 2011-01-20 | 2013-07-17 | 大连理工大学 | 一种α-蒎烯异构化方法 |
| CN102343277B (zh) * | 2011-06-30 | 2015-11-18 | 大连理工大学 | 一种高性能α-蒎烯异构化催化剂及应用 |
| CN104496741A (zh) | 2014-12-16 | 2015-04-08 | 上海华谊(集团)公司 | 蒎烯异构化生成莰烯和三环烯的方法 |
| MY208759A (en) | 2020-02-18 | 2025-05-27 | Symrise Ag | Process for preparing limonene and composition containing limonene |
-
2020
- 2020-02-18 MY MYPI2022004256A patent/MY208759A/en unknown
- 2020-02-18 CN CN202080096830.2A patent/CN115210180B/zh active Active
- 2020-02-18 US US17/799,506 patent/US12049441B2/en active Active
- 2020-02-18 WO PCT/EP2020/054233 patent/WO2021164852A1/de not_active Ceased
- 2020-02-18 EP EP20706439.5A patent/EP4107124A1/de active Pending
- 2020-02-18 BR BR112022013640A patent/BR112022013640A2/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MY208759A (en) | 2025-05-27 |
| BR112022013640A2 (pt) | 2022-09-06 |
| US20230144944A1 (en) | 2023-05-11 |
| WO2021164852A1 (de) | 2021-08-26 |
| US12049441B2 (en) | 2024-07-30 |
| CN115210180B (zh) | 2025-01-28 |
| CN115210180A (zh) | 2022-10-18 |
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