CN109896939A - Composition and method for biphasic catalysis preparing aldehyde by hydroformylation - Google Patents
Composition and method for biphasic catalysis preparing aldehyde by hydroformylation Download PDFInfo
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Abstract
The present invention relates to a kind of compositions for biphasic catalysis preparing aldehyde by hydroformylation, comprising: rhodium catalyst and the cationic surfactant containing hydroxyl.The invention further relates to a kind of methods for biphasic catalysis preparing aldehyde by hydroformylation.Composition provided by the invention is used to that the conversion ratio of alkene and the selectivity of aldehyde can be significantly improved when biphasic catalysis preparing aldehyde by hydroformylation, while also reducing production cost.
Description
Technical field
The present invention relates to a kind of composition for biphasic catalysis preparing aldehyde by hydroformylation and a kind of biphasic catalysis hydrogen first
The acylated method for preparing aldehyde.
Background technique
In recent years, with the fast development of plastic processing in world wide, auto industry, cable industry and construction industry,
Demand of the whole world to plasticizer is increasing, and then increases the demand of plasticizer alcohol, especially the demand of C6 or more higher alcohols
Rapid development.
Currently, industrial hydroformylation production technology is broadly divided into homogeneous catalysis and biphasic catalysis.Homogeneous catalysis has
The advantages that reaction rate is fast, and activity is high, but product and catalyst need the method separation using distillation.With the increasing of carbochain
Long, the boiling point of hydroformylation reaction product high-carbon aldehyde increases, and needs higher temperature that could separate product.And there is high activity
Rhodium series catalysts easy in inactivation at high temperature, therefore high temperature distillation used in homogeneous catalysis technique will cause noble metal catalyst
Loss, increase production cost.
In order to overcome homogeneous reaction to prepare the disadvantages mentioned above of aldehyde, biphasic catalysis technique is developed (especially water-oil phase
Catalysis), the main reason is that: on the one hand, product and catalyst can be easily separated in water-oil phase catalytic reaction process, not need
High-temperature operation avoids rhodium catalyst inactivation, increases its service efficiency, reduce production cost；On the other hand, which uses
Solvent be water, reduce the use of organic solvent, meet the requirement of " Green Chemistry ".Water-oil phase Catalytic processes have been answered at present
In the industrial production of preparing aldehyde by hydroformylation of light olefins.But the dissolution due to the higher olefins of C6 or more in water
Property poor (some even fairly insoluble), cause mass transfer rate slow, influence reactivity, limit water-oil phase Catalytic processes and exist
Application in hydroformylation of higher olefins industrial production, therefore solve higher olefins mass transfer rate in water-oil phase catalytic process
Slow problem is particularly important.
Chinese patent CN105418394 discloses a kind of water soluble ligand of alcoholic hydroxy segment, which has in water
Good dissolubility can ensure the recycling for realizing catalyst by simple water-oil separating after reaction, still
There is no solve the problems, such as higher olefins mass transfer in water for the deliquescent increase of ligand.
To solve higher olefins mass transfer problem, Chinese patent CN1562932 discloses a kind of using ionic liquid progress hydrogen
The method that formylation reaction prepares aldehyde, the separation of this method although catalyst and product easy to accomplish, and there is yield and selection
The advantages that property is high, but the synthesis step of ionic liquid itself is cumbersome, easily causes environmental pollution, cost is extremely high；In addition,
United States Patent (USP) US6452055 discloses a kind of method that hydroformylation reaction is carried out in microemulsion, although this method increases
The mass transfer velocity of higher olefins not soluble in water in water, but this method need to use a large amount of emulsifiers, and post-processing can be brought tired
The problems such as difficult, at high cost." chemical journal " (2013, volume 71,844-848 pages) have delivered a kind of novel cation surface-active
Agent promotes the research of 1- octene hydroformylation water/oil two phase reaction, although the surfactant and traditional cation surface-active
Agent is compared, and is not only accelerated reaction speed but also is also improved just/different ratio of aldehyde, but its usage amount is still higher, easily causes molten
Liquid emulsification, brings the difficulty of later period two-phase laminated flow.
Though the above various technologies solve the biography of higher olefins in water by changing solvent or the modes such as solubilizer being added
Geological Problems, but there are solubilizer usage amount is big, it is at high cost the deficiencies of, therefore the type of solubilizer is needed to improve, to solve oil water removal
Limitation of the biphasic catalysis technique in hydroformylation of higher olefins industrial production.
Summary of the invention
In water-oil phase reaction process, since solubility is low in water causes reaction rate slow even not anti-for higher olefins
It answers.In order to solve the above-mentioned technical problems, the present invention provides a kind of composition for biphasic catalysis preparing aldehyde by hydroformylation, packets
Include the cationic surfactant of rhodium catalyst and hydroxyl.
The preferred embodiment of composition according to the present invention, mole of the cationic surfactant and rhodium catalyst
Than for 5:1-0.08:1, preferably 4:1-0.1:1, more preferably 2.5:1-0.5:1.
The preferred embodiment of composition according to the present invention, the structure of the cationic surfactant such as formula (I) institute
Show,
In formula (I), n=0-10；R is C4-C20Linear paraffin or C4-C20Branched paraffin；M-For Cl-Or Br-。
Preferably, n 0-6, more preferably 0-3 (such as 1,2,3).
According to the preferred embodiment of the present invention, R C6-C18Linear paraffin or C6-C18Branched paraffin.More preferably
Ground, R C8-C16Branched paraffin.In some embodiments, R C15Straight chained alkyl.In other embodiments, R is
C15Branched alkyl, such as
According to the preferred embodiment of the present invention, the rhodium catalyst is water-soluble rhodium catalyst, comprising rhodium complex and
Organic phosphine compound.Preferably, the central metal of the rhodium catalyst of opposite 1mol, the amount of the organic phosphine compound are
0.5mol-200mol, preferably 3mol-70mol, more preferably 15mol-50mol.
The preferred embodiment of composition according to the present invention, the rhodium complex are rhodium trichloride hydrate, acetylacetone,2,4-pentanedione
Dicarbonyl rhodium, a chlorine one carbonyl two (trisulfonated triphenylphosphine trisodium salt) rhodium, one carbonyl of a chlorine, two (two sulfonated triphenylphosphine disodiums
Salt) rhodium, one carbonyl of a chlorine, two (one sodium salt of a sulfonated triphenylphosphine) rhodium and one carbonyl of a hydrogen, three (trisulfonated triphenylphosphine trisodium
At least one of salt) rhodium.
According to the preferred embodiment of the present invention, the organic phosphine compound (i.e. Phosphine ligands) is water-soluble three sulfonation three
At least one of one sodium salt of Phenylphosphine trisodium salt, two sulfonated triphenylphosphine disodium salts and a sulfonated triphenylphosphine.
Composition provided by the invention is used to significantly improve the conversion of alkene when biphasic catalysis preparing aldehyde by hydroformylation
The selectivity of rate and aldehyde, while also reducing production cost.Therefore, on the other hand, the present invention also provides a kind of two-phases to urge
The method for changing preparing aldehyde by hydroformylation, including making olefin feedstock in the solution of composition according to the present invention and water composition
In the presence of reacted with carbon monoxide and hydrogen, to generate aldehyde.
Cationic surfactant is added in hydroformylation reaction and overcomes existing two-phase water-soluble rhodium-phosphine catalyst technique
Middle C6 or more hydroformylation of higher olefins reaction rate is low, and required concentration is high when addition conventional surfactants, can generate
Two-phase emulsifies and leads to the shortcomings that mutually separating difficult and increase rhodium catalyst loss, and then improves rhodium catalyst service efficiency, drop
Low production cost.
Water used in the present invention is preferably deionized water.
According to the preferred embodiment of the present invention, in the solution, in terms of rhodium metal atom, the concentration of rhodium is
0.1mmol/L-2mmol/L, preferably 0.2mmol/L-1.6mmol/L, more preferably 0.7mmol/L-1.6mmol/L.
According to the preferred embodiment of the present invention, the concentration of the cationic surfactant is 0.01mmol/L-
5mmol/L, preferably 0.1mmol/L-3mmol/L, more preferably 0.1mmol/L-2mmol/L.It is described according to some embodiments
The concentration of cationic surfactant is 0.08mmol/L-3mmol/L.
According to the preferred embodiment of the present invention, the olefin feedstock is C6+ alkene, preferably octene.
According to the preferred embodiment of the present invention, the reaction temperature is 50 DEG C -120 DEG C, preferably 90 DEG C -110 DEG C.
According to the preferred embodiment of the present invention, reaction pressure 0.1MPa-10MPa, preferably 0.1MPa-4MPa.
According to the preferred embodiment of the present invention, the reaction time is -8 hours 1 hour, preferably -5 hours 2 hours.
According to the preferred embodiment of the present invention, the olefin feedstock and the rhodium catalyst are (with the rhodium catalyst
Central metal meter) molar ratio be 100000:1-500:1, preferably 10000:1-1000:1, more preferably 8000:1-1000:
1。
According to the preferred embodiment of the present invention, the molar ratio of carbon monoxide and hydrogen is 0.9-1.1:1, preferably 1:1.
According to the preferred embodiment of the present invention, before the olefin feedstock is contacted with carbon monoxide and hydrogen, elder generation and institute
Solution premix is stated, doing time in advance is 0-10 minutes, preferably 1-5 minutes, 1-3 minutes more preferable.
The present invention by a small amount of cationic surfactant being added especially containing the cationic surfactant of hydroxyl,
Hydroformylation of higher olefins reaction rate is improved, and avoids the serious emulsification after concentrated surfactant addition to reduce
Rhodium catalyst loss reduces production cost, improves water/oil biphasic catalysis technique in hydroformylation of higher olefins industrial production
Possibility.
Specific embodiment
The present invention is described in detail with reference to embodiments, but the present invention is not limited by following embodiments.Implement
Cationic surfactant described in example is prepared referring to 101745343 B of patent CN.
Embodiment 1
By a hydrogen one carbonyl three (trisulfonated triphenylphosphine trisodium salt) rhodium HRh (CO) (TPPTS)3, trisulfonated triphenylphosphine
Trisodium salt TPPTS, cationic surfactant (compound of formula (I) structure, wherein n=3, R C15Branched paraffin, structure
ForM-For Cl-) and deionized water be made into 25mL aqueous solution and 50mL be added with blender and thermocouple
Stainless steel autoclave in, stir evenly, make the concentration of the concentration 0.8mmol/L, TPPTS of rhodium in solution be
24mmol/L, surfactant concentration 1mmol/L, reaction kettle synthesis gas are replaced 3 times.1- octene is added, makes water-oil phase body
Product is than being 1:5.Premixing stirring 2min sets pressure as 2MPa, and temperature is 100 DEG C, is passed through synthetic gas (CO:H thereto2
=1:1) it is reacted, it reacts 2 hours, takes out reactant after cooling, analyzed with gas-chromatography, test result such as 1 institute of table
Show.
Embodiment 2
Experimental method with embodiment 1, wherein cationic surfactant structure change (compound of formula (I) structure, wherein
N=0, remaining structure are constant), remaining experiment condition is constant, and test result is as shown in table 1.
Embodiment 3
Experimental method with embodiment 1, wherein cationic surfactant structure change (compound of formula (I) structure, wherein
N=5, remaining structure are constant), remaining experiment condition is constant, and test result is as shown in table 1.
Embodiment 4
Experimental method with embodiment 1, wherein cationic surfactant structure change (compound of formula (I) structure, wherein
M-For Br-, remaining structure is constant), remaining experiment condition is constant, and test result is as shown in table 1.
Embodiment 5
Experimental method with embodiment 1, wherein cationic surfactant structure change (compound of formula (I) structure, wherein
R is C15Linear paraffin, remaining structure is constant), remaining experiment condition is constant, and test result is as shown in table 1.
Embodiment 6:
Experimental method with embodiment 1, wherein cationic surfactant structure change (compound of formula (I) structure, wherein
N=0, R C15Linear paraffin, remaining structure is constant), remaining experiment condition is constant, and test result is as shown in table 1.
Embodiment 7,8 and 9:
The experimental method of embodiment 6,7 and/8 is with embodiment 1, and wherein cationic surfactant concentration becomes respectively
0.08mmol/L, 0.4mmol/L and 3mmol/L, remaining experiment condition is constant, and test result is as shown in table 1.
Embodiment 10 and 11:
The experimental method of embodiment 9 and 10 is with embodiment 1, wherein the concentration of rhodium in solution is become respectively
0.25mmol/L and 2.5mmol/L, remaining experiment condition is constant, and test result is as shown in table 1.
Comparative example 1
Experimental method is with embodiment 1, wherein cationic surfactant is not added, remaining experiment condition is constant, test result
As follows: 1- octene conversion ratio is less than 10%.
As can be seen that surfactant is not added from comparative example, catalyst reaction activity is lower.
Comparative example 2
Experimental method is with embodiment 1, wherein change cationic surfactant into cationicsurfactants, remaining
Experiment condition is constant, and test result is as follows: 1- octene conversion ratio 35.1%.
As can be seen that using the common cation surfactant of same concentration from comparative example, catalyst reaction activity
It is lower.
Table 1
It can be seen that for example, by the comparison of embodiment 1 and 5 and the comparison of embodiment 2 and 6 when R is branched structure
When, the selectivity of Olefin conversion rate and aldehyde is higher.
By the comparison of embodiment 1,2 and 3, the comparison of embodiment 5 and 6 can be seen that n be 3 when, Olefin conversion rate and
The selectivity of aldehyde is best.
It can be seen that M by the comparison of embodiment 1 and 4-For Cl-Or Br-When to the selectivity of Olefin conversion rate and aldehyde
It influences similar.
Above-described is only preferred embodiment of the invention.It should be understood that for those of ordinary skill in the art,
Under technical inspiration provided by the present invention, as the common knowledge of this field, other equivalent modifications and improvement can also be made,
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of composition for biphasic catalysis preparing aldehyde by hydroformylation, comprising: rhodium catalyst and the cation containing hydroxyl
Surfactant.
2. composition according to claim 1, which is characterized in that the cationic surfactant and rhodium catalyst rub
You are than being 5:1-0.08:1, preferably 4:1-0.1:1, more preferably 2.5:1-0.5:1.
3. composition according to claim 1 or 2, which is characterized in that the structure of the cationic surfactant such as formula
(I) shown in,
Wherein, n=0-10, preferably 0-6, more preferably 0-3；R is C4-C20Linear paraffin or C4-C20Branched paraffin, it is excellent
It is selected as C6-C18Linear paraffin or C6-C18Branched paraffin, more preferably C8-C16Branched paraffin；M-For Cl-Or Br-。
4. composition according to any one of claim 1-3, which is characterized in that the rhodium catalyst is urged for water-soluble rhodium
Agent includes rhodium complex and organic phosphine compound；Preferably, the central metal rhodium of the rhodium catalyst of opposite 1mol is former
Son, the amount of the organic phosphine compound are 0.5mol-200mol, preferably 3mol-70mol, more preferably 15mol-50mol.
5. composition according to claim 4, which is characterized in that the rhodium complex is rhodium trichloride hydrate, levulinic
Ketone dicarbonyl rhodium, a chlorine one carbonyl two (trisulfonated triphenylphosphine trisodium salt) rhodium, one carbonyl of a chlorine, two (two sulfonated triphenylphosphines two
Sodium salt) rhodium, one carbonyl of a chlorine, two (one sodium salt of a sulfonated triphenylphosphine) rhodium and one carbonyl of a hydrogen, three (trisulfonated triphenylphosphine trisodium
At least one of salt) rhodium；And/or the organic phosphine compound is water-soluble trisulfonated triphenylphosphine trisodium salt, two sulfonation
At least one of one sodium salt of triphenylphosphine disodium salt and a sulfonated triphenylphosphine.
6. a kind of method of biphasic catalysis preparing aldehyde by hydroformylation, including keep olefin feedstock any according to claim 1-5
It is reacted under the conditions of the solution of composition and water composition described in is existing with carbon monoxide and hydrogen, to generate aldehyde.
7. according to the method described in claim 6, it is characterized in that, in the solution, in terms of rhodium metal atom, the concentration of rhodium
For 0.1mmol/L-2mmol/L, preferably 0.2mmol/L-1.6mmol/L, more preferably 0.7mmol/L-1.6mmol/L；With/
Or, the concentration of the cationic surfactant be 0.01mmol/L-5mmol/L, preferably 0.1mmol/L-3mmol/L, more
Preferably 0.1mmol/L-2mmol/L.
8. the method according to any one of claim 6-7, which is characterized in that the olefin feedstock is C6+ alkene, preferably
For octene, the reaction temperature is 50 DEG C -120 DEG C, preferably 90 DEG C -110 DEG C, reaction pressure 0.1MPa-10MPa, preferably
0.1MPa-4MPa, reaction time are -8 hours 1 hour, preferably -5 hours 2 hours.
9. method a method according to any one of claims 6-8, which is characterized in that the olefin feedstock and the rhodium catalyst
Molar ratio be 100000:1-500:1, preferably 10000:1-1000:1, more preferably 8000:1-1000:1.
10. the method according to any one of claim 6-9, which is characterized in that the olefin feedstock and carbon monoxide and
Before hydrogen contact, first premixed with the solution, doing time in advance is 0-10 minutes, preferably 1-5 minutes, 1-3 minutes more preferable.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578393A (en) * | 2020-04-30 | 2021-11-02 | 中国石油化工股份有限公司 | Composition and method for preparing aldehyde by two-phase catalytic hydroformylation |
| CN113698280A (en) * | 2020-05-21 | 2021-11-26 | 中国石油化工股份有限公司 | Olefin hydroformylation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305450A (en) * | 1998-05-25 | 2001-07-25 | Rwe-Dea矿物油化学有限公司 | Method for catalytic hydroformylation of olefins |
| CN101348423A (en) * | 2008-09-04 | 2009-01-21 | 青岛三力本诺化学工业有限公司 | Method for preparing aldehyde by alkene hydroformylation |
| CN101462932A (en) * | 2009-01-21 | 2009-06-24 | 成都欣华源科技有限责任公司 | Method for preparing aldehyde by hydroformylation of light olefins |
| CN101722048A (en) * | 2008-10-31 | 2010-06-09 | 中国石油化工股份有限公司 | Catalyst for preparing aldehyde by two-phase catalytic hydrogen formylation reaction and application thereof |
| CN101745343A (en) * | 2008-12-02 | 2010-06-23 | 中国科学院理化技术研究所 | Has alkyl polyoxyethylene ether surfactant of Ju Beite structure and its production and use |
-
2017
- 2017-12-07 CN CN201711281297.3A patent/CN109896939B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305450A (en) * | 1998-05-25 | 2001-07-25 | Rwe-Dea矿物油化学有限公司 | Method for catalytic hydroformylation of olefins |
| CN101348423A (en) * | 2008-09-04 | 2009-01-21 | 青岛三力本诺化学工业有限公司 | Method for preparing aldehyde by alkene hydroformylation |
| CN101722048A (en) * | 2008-10-31 | 2010-06-09 | 中国石油化工股份有限公司 | Catalyst for preparing aldehyde by two-phase catalytic hydrogen formylation reaction and application thereof |
| CN101745343A (en) * | 2008-12-02 | 2010-06-23 | 中国科学院理化技术研究所 | Has alkyl polyoxyethylene ether surfactant of Ju Beite structure and its production and use |
| CN101462932A (en) * | 2009-01-21 | 2009-06-24 | 成都欣华源科技有限责任公司 | Method for preparing aldehyde by hydroformylation of light olefins |
Non-Patent Citations (2)
| Title |
|---|
| 李鑫: "聚醚季铵盐的合成及其在水/有机两相高碳烯烃氢甲酰化反应中的应用", 《中国优秀硕士学位论文全文数据库-工程科技I辑》 * |
| 苏珂: "十六烷基三羟乙基溴化铵促进1-辛烯氢甲酰化水/有机两相反应研究", 《化学学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113578393A (en) * | 2020-04-30 | 2021-11-02 | 中国石油化工股份有限公司 | Composition and method for preparing aldehyde by two-phase catalytic hydroformylation |
| CN113698280A (en) * | 2020-05-21 | 2021-11-26 | 中国石油化工股份有限公司 | Olefin hydroformylation method |
| CN113698280B (en) * | 2020-05-21 | 2023-10-13 | 中国石油化工股份有限公司 | Olefin hydroformylation method |
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