CN1063100C - Catalyzer for preparation of cumin by benzene and propene hydrocarbon - Google Patents
Catalyzer for preparation of cumin by benzene and propene hydrocarbon Download PDFInfo
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- CN1063100C CN1063100C CN96116540A CN96116540A CN1063100C CN 1063100 C CN1063100 C CN 1063100C CN 96116540 A CN96116540 A CN 96116540A CN 96116540 A CN96116540 A CN 96116540A CN 1063100 C CN1063100 C CN 1063100C
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- Prior art keywords
- catalyst
- benzene
- isopropylbenzene
- preparing
- propylene
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Links
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 title claims abstract description 42
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title description 4
- 239000004215 Carbon black (E152) Substances 0.000 title 1
- 241000510672 Cuminum Species 0.000 title 1
- 235000007129 Cuminum cyminum Nutrition 0.000 title 1
- 229930195733 hydrocarbon Natural products 0.000 title 1
- -1 propene hydrocarbon Chemical class 0.000 title 1
- 239000003054 catalyst Substances 0.000 claims abstract description 68
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 229910052796 boron Inorganic materials 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 23
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 19
- 229910019142 PO4 Inorganic materials 0.000 claims description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 15
- 239000010452 phosphate Substances 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 150000003839 salts Chemical group 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- ODLMAHJVESYWTB-UHFFFAOYSA-N propylbenzene Chemical compound CCCC1=CC=CC=C1 ODLMAHJVESYWTB-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 19
- 235000021317 phosphate Nutrition 0.000 description 15
- 235000011007 phosphoric acid Nutrition 0.000 description 13
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 239000010949 copper Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000005804 alkylation reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229920000137 polyphosphoric acid Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 229940005657 pyrophosphoric acid Drugs 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The present invention relates to a catalyst for preparing isopropylbenzene by benzene and propene. The composition of the catalyst is fundamentally represented by the following general formula: ABaCb (P2O5)c (H2O)d. In the formula, A is Si, B is selected from Cu, Fe, Ni or a mixture of Cu, Fe and Ni, and C is selected from B, Sb, Bi or a mixture of B, Sb and Bi, wherein a is from 0 to 0.4, b is from 0.6 to 1.0, c is from 1.2 to 1.8, and d is from 0.69 to 1.26. In the process for preparing propylbenzene by benzene and propene, the catalyst has the characteristics of high activity, high strength, good performance of water resistance, and long service life. The catalyst is not easily slimed. The catalyst can be used on industrial equipment.
Description
The present invention relates to a kind of method for preparing isopropylbenzene, especially prepare the method for isopropylbenzene about benzene and propylene hydrocarbonylation.
Isopropylbenzene is not only the antiknock dope of aviation gasoline, and is the main intermediate of producing phenol and acetone.The method of producing isopropylbenzene mainly contains three kinds: 1. be to be the technology of catalyst with the alchlor, the shortcoming that this technology exists is that serious equipment corrosion is arranged, there is waste water handling problem, and the drying of benzene feedstock is had very high requirement, brought inconvenience to suitability for industrialized production.2. be to be the technology of catalyst with the molecular sieve, this technology might become the cleaning procedure of non-environmental-pollution, but in this technology, because the polymer of by-product can accumulate in the pore of molecular sieve catalyst, cause catalysqt deactivation easily, therefore it is industrial this class catalyst to be applied to, and needs macroporous catalyst, and needs to solve the generation problem that can produce the inhibition polymer.3. be to be the technology of catalyst with the solid phosphoric acid, this technology has advantages such as selectivity height, the three wastes are easily handled, production capacity is big.Solid phosphoric acid catalyst is made with the diatomite blend by strong phosphoric acid (or claiming polyphosphoric acid) usually, also claims the diatomite phosphoric acid catalyst.In long-term industrial practice, solid phosphoric acid catalyst existed water resistance poor in the past, shortcomings such as easy argillization.Document US 3201486 (nineteen sixty-five) has at first proposed the solid phosphoric acid catalyst of propylene-benzene-alkylation.It only is phosphoric acid and diatomite that its catalyst is formed.The reaction result that carries out benzene-alkylation is that the isopropylbenzene yield counts 90% with propylene, but does not mention problems such as coking that catalyst itself exists, argillization in this patent.Afterwards, the solid phosphate catalyst of modification is disclosed among the document PL152172 (1990), this catalyst mainly is to have added titanium dioxide and the catalyst of magnesia after modification has the catalyst activity height in the hydrocarbonylation process that is used for benzene and propylene in solid phosphate, reaction temperature is lower 50 ℃ than catalyst, the characteristics that catalyst life is long, coking is few, but the document is not still mentioned the situation of aspects such as the performance of catalyst, anti-argillization performance.
For overcoming the deficiency that exists in the above-mentioned document, the purpose of this invention is to provide a kind of water for preparing isopropylbenzene and prepare in the process of isopropylbenzene at benzene and propylene hydrocarbonylation, catalyst not only has high activity, high strength, and can be good, is difficult for argillization, the characteristics that the life-span is long.
The objective of the invention is to realize by following technical scheme: a kind of method for preparing isopropylbenzene, hydrocarbonylation prepare in the isopropylbenzene process, use basic composition by following general formula:
AB
aC
b(P
2O
5)
c(H
2O)
dSolid phosphate make catalyst,
A is Si in the formula;
B is selected from Cu, Fe, Ni or their mixture;
C is selected from B, Sb, Bi or their mixture;
A, b, c, d equal the mol ratio value of 1 o'clock corresponding component, wherein a=0～0.4, b=0.6～1.0, c=1.2～1.8, d=0.69～1.26 for the A component.
The preferable range of a is 0.2～0.35 in the technique scheme, the preferable range of b is 0.7～0.9, the preferable range of c is 1.3～1.6, the preferable range of d is 0.72～1.15; B component preferable range is to be selected from Cu, Fe or their mixture; C component preferable range is to be selected from B, Sb or their mixture, and the A component is introduced in the catalyst with the diatomite form, and B and C component are introduced in the catalyst with corresponding oxide, hydroxide or its corresponding decomposable salt form respectively.
The catalyst structural analysis internally that the present invention uses: mainly be by Si
3(PO
4)
4, SiP
2O
7, Cu
2P
2O
7, BPO
4And excessive H
3PO
4Be formed by combining.Therefore, performance such as this activity of such catalysts, life-span is more excellent.
At length narrate the concrete method for making of catalyst of the present invention below;
At first, with P
2O
5Add moisture or anhydrous H
3PO
4In, under 120～200 ℃, make polyphosphoric acids, the oxide, hydroxide or its corresponding decomposable salt that under 120～230 ℃, add copper again, after making its formation be the solution of Vlei green, under electronic stirring, under the above-mentioned uniform temp, add oxide, hydroxide or its corresponding decomposable salt of boron, make phosphate mixt, and remove the H that dereaction generated
2The gas that O and corresponding salt decomposed.At this moment, it is thick that material is, and continues to react half an hour, makes to react completely.Again this material is descended and the diatomite blend in 140～230 ℃, dry down in 160～200 ℃, behind extruded moulding, in 400～650 ℃ of roastings 1 hour in muffle furnace, after this, the employing water vapour is air-activated, makes the catalyst finished product that makes satisfy the water content ranges shown in the aforementioned formula, i.e. the atomicity of d.The rerum natura of catalyst is as follows: shape and size: cylindrical φ 4 * 6～8mm; Color and luster: white; Heap ratio: 0.9～1.0g/ml; Specific surface: 3.0～3.5m
2/ g; Rate of wear:＜3% (wt); Axial crushing strength:＞48.5Kg/cm
2
The active constituent of general solid phosphoric acid catalyst is that pyrophosphoric acid, orthophosphoric acid have some activity for aromatic hydrocarbons hydrocarbonylation process, and metaphosphoric acid does not have activity.As with orthophosphoric acid (H
3PO
4) thermal dehydration, because the degree of dehydration difference obtains corresponding pyrophosphoric acid (H
4P
2O
7) and metaphosphoric acid (HPO
3).Therefore can give full play to for the performance that makes catalyst, must in course of reaction, keep suitable moisture content.The change of water content not only can make the chemical property of catalyst change, and the physical property of catalyst is changed.Moisture loss can make catalyst owing to pulverizing and caking degenerates, and beds stops up as a result, and material can produce high pressure during by beds and heat exchanger and fall.On the other hand, if exist excessive water also unfavorable in the reaction raw materials, can make the softening mud that forms of catalyst.Mud also can make in beds and the reactor tubulation stop up, the increase that the result also can build-up of pressure falls.
Active condensed phosphoric acid and the salt ratio thereof of traditional solid phosphate " storage " is easier to hydrolysis, under the moisture 250～300ppm situation of raw material, the balance free acid amount of catalyst surface is when 12～13% (m), and catalyst can for a long time, stably keep the activity of appropriateness.If the water yield is big, during such as the 700ppm left and right sides (this is the frequent water content of industrial propane, propylene and benzene), a large amount of dehydroamino acids and salt thereof change to low condensation degree direction, and the balance acid content reaches more than 17% (m).At this moment, catalyst demonstrates thundering high activity, and skeleton structure also with thundering speed wear and tear, broken until " argillization ".
The solid phosphate catalyst that the present invention uses owing to introduced new component beyond phosphoric acid, diatomite, has generated the innovative product of being made up of a series of dehydroamino acids and complex salt.Therefore remove original advantage of the solid phosphate catalyst that has kept traditional, its water resistance is greatly raising also.This is that they are facile hydrolysis not, needs higher equilibrium water amount and could be hydrolyzed into free acid slowly, equably because generated various composite phosphates after having introduced new component in the catalyst of the present invention.Its reactor feed water content allows up to 1100～3500ppm.In the alkylation reaction of propylene and benzene, use catalyst of the present invention, contained not treated can the use of moisture content in employed propylene, the benzene raw materials.Be that catalyst of the present invention is used for the alkylation reaction that propylene, benzene prepare isopropylbenzene, have the advantages that high activity, life-span are long, be difficult for argillization, obtained good effect.The present invention is further illustrated below in conjunction with embodiment.
[embodiment 1]
H with 450g85%
3PO
4With 550gP
2O
5Be mixed with polyphosphoric acids under 150 ℃, the solution of gained adds 80gCuO and generates the Vlei green solution in the time of 180 ℃, under electronic stirring, adds 160gB (OH) in the time of 170 ℃
3Make phosphatic mixture, remove the H that dereaction generates simultaneously
2O.With the pastel of gained in 140 ℃ the time and 270g diatomite in kneading machine, kneaded several minutes, the powder ball material of gained is following dry 1 hour at 180 ℃, it is the cylindrical particle of 4 * 6mm that extrusion becomes diameter, insert that the heating rate with 300 ℃/hr rises to 560 ℃ in the muffle furnace, carry out roasting, constant temperature 1 hour stops heating afterwards, treat that it cools off naturally, take out after 8 hours.The white cylindrical particle that will obtain is at last packed in the stainless steel tubular type activator of φ 50mm, and with certain air speed, the water steam air activates, and the catalyst finished product that makes is met form the water content ranges shown in the general formula.
It consists of the catalyst that makes by this law:
Si
1Cu
0.247B
0.8(P
2O
5)
1.45·(H
2O)
0.8
At an internal diameter is in the reactor of φ 20mm, and the above-mentioned solid phosphate catalyst 25ml[total phosphorus content 64.41 (P that make pack into
2O
5) %, free phosphorus content 16.12 (P
2O
5) %], loading height is 130mm.
Reaction raw materials benzene (purity 99.8%, water content 470ppm) and propylene (concentration 52% is with the propane dilution), purified propylene is 97%, purified propylene oxide is 98%.Use measuring pump respectively, after mixing, enter and to reactor, react after preheater is heated to 190 ℃.Reaction condition is: 220 ℃ of reaction temperatures, reaction pressure are 3.0MPa, and benzene/propylene mol ratio is 5, and the liquid volume air speed is 4.0 hours
-1Product is after gas-liquid separator separates, and it is 98.1% that the gas phase part gets propylene conversion through on-line gas chromatography analysis component; Liquid phase part, it is 97.0% (in propylene) that sampling gets reaction selectivity through gas chromatograph analysis component.
After turning round continuously in 1000 hours, the solid phosphate catalyst that unloads does not have the argillization sign.[embodiment 2]
Press the preparation method of embodiment 1, with 81gFe
2O
3Replaced C uO, catalyst consists of Si
1Fe
0.25B
0.96(P
2O
5)
1.45(H
2O)
0.73Use is estimated with the method for embodiment 1, and the result is a propylene conversion 98.8%, and reaction selectivity is 96.9% (in propylene).After turning round continuously in 1000 hours, the solid phosphate catalyst that unloads does not have the argillization sign.[embodiment 3]
Press the preparation method of embodiment 1, with 200gNi (CO)
4Replaced C uO, wherein B (OH)
3Use 180g instead, catalyst consists of Si
1Ni
0.29B
0.72(P
2O
5)
1.45(H
2O)
0.95Use is estimated with the method for embodiment 1, and the result is a propylene conversion 96.1%, and reaction selectivity is 95.9% (in propylene).After turning round continuously in 1000 hours, the solid phosphate catalyst that unloads does not have the argillization sign.[embodiment 4]
Press the preparation method of embodiment 1, with 470gSb
2O
3Replace B (OH)
3, wherein CuO uses 81g instead, and phosphoric acid is used 408g instead, P
2O
5Use 536g instead, catalyst consists of Si
1Cu
0.25Sb
0.8(P
2O
5)
1.37(H
2O)
1.10Use is estimated with the method for embodiment 1, and the result is a propylene conversion 96.4%, and reaction selectivity is 95.1% (in propylene).
After turning round continuously in 1000 hours, the solid phosphate catalyst that unloads does not have the argillization sign.[embodiment 5]
The data of catalyst strength and rate of wear are listed in the table below, wherein the serial number of catalyst is that the catalyst that makes by embodiment 1～4 method and the catalyst of offshore company compare, the catalyst strength test is to use the electronic strength tester of Qcy-602, and the calculating of rate of wear is to use following formula:
In the formula: W
1-sample does not grind preceding weight;
W
2-sample is weight after grinding.
[comparative example 1]
It consists of Si with reference to the solid phosphate catalyst of catalyst
1(P
2O
5)
1.45(H
2O)
0.9(through conversion) used and estimated with the method for embodiment 1, and the result is a propylene conversion 98.8%, and the selectivity of reaction is 95.0% (in propylene).
After turning round continuously in 1000 hours, the solid phosphate catalyst that unloads is argillization basically.
Claims (6)
1, a kind of method for preparing isopropylbenzene is characterized in that preparing in benzene and propylene hydrocarbonylation and uses basic composition by following general formula: AB in the isopropylbenzene process
aC
b(P
2O
5)
c(H
2O)
dSolid phosphate make catalyst, A is Si in the formula; B is selected from Cu, Fe, Ni or their mixture; C is selected from B, Sb, Bi or their mixture; A, b, c, d equal the mol ratio value of 1 o'clock corresponding component, wherein a=0～0.4, b=0.6～1.0, c=1.2～1.8, d=0.69～1.26 for the A component.
2, according to the described a kind of method for preparing isopropylbenzene of claim 1, it is characterized in that a=0.2～0.35, b=0.7～0.9, c=1.3～1.6, d=0.72～1.15.
3,, it is characterized in that B is selected from Cu, Fe or their mixture according to the described a kind of method for preparing isopropylbenzene of claim 1.
4,, it is characterized in that C is selected from B, Sb or their mixture according to the described a kind of method for preparing isopropylbenzene of claim 1.
5,, it is characterized in that the A component is with in the diatomite form introducing catalyst according to the described a kind of method for preparing isopropylbenzene of claim 1.
6,, it is characterized in that B and C component are respectively with in corresponding oxide, hydroxide or its corresponding decomposable salt form introducing catalyst according to the described a kind of method for preparing isopropylbenzene of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116540A CN1063100C (en) | 1996-10-22 | 1996-10-22 | Catalyzer for preparation of cumin by benzene and propene hydrocarbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96116540A CN1063100C (en) | 1996-10-22 | 1996-10-22 | Catalyzer for preparation of cumin by benzene and propene hydrocarbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1180586A CN1180586A (en) | 1998-05-06 |
| CN1063100C true CN1063100C (en) | 2001-03-14 |
Family
ID=5123639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96116540A Expired - Fee Related CN1063100C (en) | 1996-10-22 | 1996-10-22 | Catalyzer for preparation of cumin by benzene and propene hydrocarbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063100C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087617C (en) * | 1998-08-31 | 2002-07-17 | 李方瑞 | Hepatitis curing capsule |
-
1996
- 1996-10-22 CN CN96116540A patent/CN1063100C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180586A (en) | 1998-05-06 |
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