CN107262157A - The preparation method of spherical mesoporous composite material containing meerschalminite and loaded catalyst and its preparation method and application and acid isopropyl - Google Patents

The preparation method of spherical mesoporous composite material containing meerschalminite and loaded catalyst and its preparation method and application and acid isopropyl Download PDF

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Publication number
CN107262157A
CN107262157A CN201610213169.4A CN201610213169A CN107262157A CN 107262157 A CN107262157 A CN 107262157A CN 201610213169 A CN201610213169 A CN 201610213169A CN 107262157 A CN107262157 A CN 107262157A
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meerschalminite
composite material
mesoporous composite
acid
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CN107262157B (en
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亢宇
张明森
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/03Catalysts comprising molecular sieves not having base-exchange properties
    • B01J29/0308Mesoporous materials not having base exchange properties, e.g. Si-MCM-41
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0215Sulfur-containing compounds
    • B01J31/0225Sulfur-containing compounds comprising sulfonic acid groups or the corresponding salts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/26Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/615100-500 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/617500-1000 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/6350.5-1.0 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63Pore volume
    • B01J35/638Pore volume more than 1.0 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64Pore diameter
    • B01J35/643Pore diameter less than 2 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64Pore diameter
    • B01J35/6472-50 nm
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/08Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/40Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
    • B01J2231/49Esterification or transesterification

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to catalyst field, and in particular to the preparation method of a kind of spherical mesoporous composite material containing meerschalminite and loaded catalyst and its preparation method and application and acid isopropyl.Wherein, disclose a kind of spherical mesoporous composite material containing meerschalminite, the preparation method of the spherical mesoporous composite material containing meerschalminite, the spherical mesoporous composite material containing meerschalminite prepared by this method, loaded catalyst containing the spherical mesoporous composite material containing meerschalminite, the preparation method of the loaded catalyst, the loaded catalyst prepared by this method, the application of the loaded catalyst in the esterification reaction.Wherein, the composite contains sepiolite and the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture, and the content of aluminium element is 5 30 weight % in the composite.The loaded catalyst that the composite provided using the present invention is made as carrier can significantly improve the conversion ratio of reaction raw materials in acid isopropyl preparation process.

Description

Spherical mesoporous composite material containing meerschalminite and loaded catalyst and preparation method thereof and Using and acid isopropyl preparation method
Technical field
The present invention relates to catalyst field, and in particular to a kind of spherical mesoporous composite material containing meerschalminite, The preparation method of the spherical mesoporous composite material containing meerschalminite, the spherical Hai Pao containing aluminium prepared by this method Stone mesoporous composite material, the loaded catalyst containing the spherical mesoporous composite material containing meerschalminite should The preparation method of loaded catalyst, the loaded catalyst prepared by this method, the loaded catalyst Application in the esterification reaction, and the method for preparing using the loaded catalyst acid isopropyl.
Background technology
Acid isopropyl is transparent oily liquid, can be dissolved each other with animal and vegetable oil, and its coefficient of dispersion is big, paving Malleability is good, thin electrolyte film can be formed on skin, with skin care effect.With the rapid hair of chemical industry Exhibition, the demand to acid isopropyl is continuously increased.Generally, acid isopropyl is by oleic acid and isopropyl Alcohol is made in the presence of catalyst by esterification.It is traditionally used for oleic acid and isopropyl alcohol esterification is anti- The catalyst answered is liquid organic acid, but is produced because its corrosiveness is big, trigger side reaction is more, after reaction Thing separation is complicated and the defect such as liquid waste processing difficulty and cause it using being subject to certain restrictions.With complete Increase of the ball to Catalytic processes greenization attention degree, solid acid catalysis technique substitution liquid acid Catalytic processes It is imperative.
In existing loaded catalyst, meso-porous molecular sieve material is used as carrier.Meso-porous molecular sieve material Have the advantages that duct is orderly, aperture is adjustable, specific surface area and pore volume are larger so that mesoporous using these In preparation technology of the loaded catalyst that molecular screen material is made as carrier in organic catalytic reaction Lot of advantages is shown, for example, catalytic activity is high, side reaction is few, post processing is simple etc., however, greatly Specific surface area and high pore volume enable these meso-porous molecular sieve materials have stronger water suction, the moisture absorption Power, so that these loaded catalysts can be caused to reunite in catalytic reaction process, and then reduces oil The conversion ratio of oleic acid in isopropyl propionate preparation technology.Therefore, further developing a kind of new is used to make The problem of catalyst of standby acid isopropyl turns into the urgent need to address.
The content of the invention
The invention aims to overcome the support type being made of existing meso-porous molecular sieve material to urge Agent relatively low defect of reaction raw materials conversion ratio during acid isopropyl is prepared is adapted to use there is provided one kind Make the spherical mesoporous composite material containing meerschalminite of carrier, the spherical mesoporous composite material containing meerschalminite Preparation method, the spherical mesoporous composite material containing meerschalminite prepared by this method is spherical containing aluminium containing this The loaded catalyst of sepiolite mesoporous composite material, the preparation method of the loaded catalyst, by the party Loaded catalyst prepared by method, the application of the loaded catalyst in the esterification reaction, and use should The method that loaded catalyst prepares acid isopropyl.
In order to achieve the above object, the present inventor after research by having found, with one-dimensional channels Sepiolite is introduced in the meso-porous molecular sieve material of diplopore distributed architecture, sepiolite is entered mesopore molecular sieve material In the duct of material, and the mesoporous composite material is made to be not susceptible to reunite spherical, can so protected Stay the high-specific surface area of meso-porous molecular sieve material, big pore volume, large aperture and with one-dimensional channels diplopore point The features such as cloth structure, the reunion of meso-porous molecular sieve material can be reduced again, increase its mobility;Meanwhile, by In introducing aluminium element in meso-porous molecular sieve material so that spheroid intensity is increased, can be repeatedly as carrier It is used for multiple times, greatly reduces use cost.In addition, the support type being made of the mesoporous composite material Catalyst can significantly improve the conversion ratio of reaction raw materials when for preparing acid isopropyl.
Therefore, the invention provides the spherical mesoporous composite material containing meerschalminite of one kind, wherein, this is spherical Mesoporous composite material containing meerschalminite contains sepiolite and with the mesoporous of one-dimensional channels diplopore distributed architecture Molecular screen material, and the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 30-60 microns, Specific surface area is 100-600 meters squared per grams, and pore volume is 0.5-1.5 mls/g, and aperture is in bimodal distribution, And it is bimodal correspond to the first most probable pore size and the second most probable pore size respectively, first most probable pore size is 1-10 nanometers, second most probable pore size is 40-42 nanometers;It is described spherical mesoporous multiple containing meerschalminite The content of aluminium element is 5-30 weight %, preferably 10-29 weight % in condensation material.
Present invention also offers a kind of method for preparing the spherical mesoporous composite material containing meerschalminite, this method Comprise the following steps:
(1) providing the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture or preparation has The filter cake of the meso-porous molecular sieve material of one-dimensional channels diplopore distributed architecture, is used as component a;
(2) provide silica gel or prepare the filter cake of silica gel, be used as component b;
(3) the component a, the component b and sepiolite are mixed in high alumina ceramic ball grinder And ball milling, and by the solid powder obtained after ball milling water slurrying, then obtained slurry is sprayed Dry;
Wherein, above-mentioned steps make it that the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 30-60 microns, specific surface area is 100-600 meters squared per grams, and pore volume is 0.5-1.5 mls/g, hole Footpath is in bimodal distribution, and it is bimodal correspond to the first most probable pore size and the second most probable pore size respectively, described the One most probable pore size is 1-10 nanometers, and second most probable pore size is 40-42 nanometers;It is described spherical to contain The content of aluminium element is 5-30 weight %, preferably 10-29 weight % in meerschalminite mesoporous composite material.
Present invention also offers the spherical mesoporous composite material containing meerschalminite prepared by the above method.
Present invention also offers a kind of loaded catalyst, the catalyst contains carrier and is supported on the load P-methyl benzenesulfonic acid on body, wherein, the carrier is according to the described spherical containing meerschalminite Jie of the present invention Hole composite material.
Present invention also offers a kind of method for preparing loaded catalyst, this method includes:By carrier, P-methyl benzenesulfonic acid and water are well mixed, and obtained mixture is spray-dried, wherein, it is described to carry Body is the spherical mesoporous composite material containing meerschalminite according to the present invention.
Present invention also offers the loaded catalyst prepared by the above method.
Present invention also offers the application of above-mentioned loaded catalyst in the esterification reaction.
Present invention also offers a kind of preparation method of acid isopropyl, this method includes:In catalyst In the presence of, under conditions of esterification, contact oleic acid and isopropanol, to obtain acid isopropyl, Wherein, the catalyst is loaded catalyst of the present invention.
Spherical mesoporous composite material containing meerschalminite according to the present invention, is combined with one-dimensional channels The meso-porous molecular sieve material of diplopore distributed architecture, sepiolite, the advantage of aluminium element and ball type carrier, make The carrier that the spherical mesoporous composite material containing meerschalminite is suitable as loaded catalyst is obtained, is particularly fitted Share the carrier for the loaded catalyst for making to be used in acid isopropyl preparation process.
In loaded catalyst of the present invention, the spherical composite mesoporous containing meerschalminite of carrier is used as The characteristics of material has the loose structure of meso-porous molecular sieve material, but also p-methyl benzenesulfonic acid is loaded with, make Obtain the loaded catalyst and both had the advantages that loaded catalyst such as catalytic activity are high, side reaction is few, after Handle simple etc., there is the catalytic performance of acid again so that the loaded catalyst is for acid isopropyl Equipment corrosion will not only be caused when in preparation process, but also the conversion of reaction raw materials can be significantly improved Rate.
In addition, when preparing the loaded catalyst by the method for spray drying, the support type is urged Agent can be used repeatedly, and still can obtain during recycling higher anti- Answer feed stock conversion.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, with Following embodiment is used to explain the present invention together, but is not construed as limiting the invention. In accompanying drawing:
Fig. 1 is the X-ray diffraction of the spherical mesoporous composite material containing meerschalminite according to the present invention Spectrogram;
Fig. 2 is the microscopic appearance of the spherical mesoporous composite material containing meerschalminite according to the present invention SEM scanning electron microscope (SEM) photographs;
Fig. 3 is the graph of pore diameter distribution of the spherical mesoporous composite material containing meerschalminite according to the present invention.
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that this place is retouched The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides the spherical mesoporous composite material containing meerschalminite of one kind, wherein, this is spherical containing aluminium sea Afrodite mesoporous composite material contains sepiolite and the mesopore molecular sieve with one-dimensional channels diplopore distributed architecture Material, and the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 30-60 microns, compares table Area is 100-600 meters squared per grams, and pore volume is 0.5-1.5 mls/g, and aperture is in bimodal distribution, and Bimodal to correspond to the first most probable pore size and the second most probable pore size respectively, first most probable pore size is 1-10 nanometers, second most probable pore size is 40-42 nanometers;It is described spherical mesoporous multiple containing meerschalminite The content of aluminium element is 5-30 weight %, preferably 10-29 weight % in condensation material.
Spherical mesoporous composite material containing meerschalminite according to the present invention has one-dimensional channels diplopore point Cloth structure, the average grain diameter of its particle is measured using laser fineness gage, specific surface area, pore volume and Most probable pore size is measured according to nitrogen adsorption methods.In the present invention, the average grain diameter is average grain Diameter.
Spherical mesoporous composite material containing meerschalminite according to the present invention, by by spherical Hai Pao containing aluminium The particle size of stone mesoporous composite material is controlled within above range, it can be ensured that described spherical containing aluminium sea Afrodite mesoporous composite material is not susceptible to reunite, and be used as loaded catalyst that carrier is made can To improve the reaction raw materials conversion ratio in acid isopropyl preparation process.When described spherical containing meerschalminite Jie When the specific surface area of hole composite material is less than 100 meters squared per grams and/or pore volume less than 0.5 ml/g, Being used as the catalytic activity for the loaded catalyst that carrier is made can significantly reduce;When described spherical containing aluminium The specific surface area of sepiolite mesoporous composite material is more than 600 meters squared per grams and/or pore volume is more than 1.5 millis Rise/gram when, be used as the loaded catalyst that carrier is made and easily sent out in acid isopropyl preparation process It is raw to reunite, so as to influence the reaction raw materials conversion ratio in acid isopropyl preparation process.
In the preferred case, the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 35-55 Micron, specific surface area is 100-500 meters squared per grams, and pore volume is 0.9-1.3 mls/g, described first Most probable pore size is 2-10 nanometers, and second most probable pore size is 41-42 nanometers.
In the present invention, the aluminium element can enter by sepiolite and/or in high alumina ceramic ball grinder The mode of row ball milling is introduced.The sepiolite can be sepiolite commonly used in the art, preferable case Under, the content of aluminium element is 1-10 weight %, preferably 2-8 weight % in the sepiolite.Further Preferably, described in the percentage by weight of aluminium element is more than in the spherical mesoporous composite material containing meerschalminite The percentage by weight of aluminium element in sepiolite.
According to the present invention, relative to Jie described in 100 parts by weight with one-dimensional channels diplopore distributed architecture Porous molecular sieve material, the content of the sepiolite is 1-100 parts by weight, preferably 25-100 parts by weight, Preferably 15-50 parts by weight.
In the present invention, the spherical mesoporous composite material containing meerschalminite can also contain and be drawn by silica gel The silica entered." silica introduced by silica gel " refers to described spherical containing meerschalminite Jie In the preparation process of hole composite material, brought into by silica gel as preparing raw material finally prepare it is spherical containing aluminium sea Silica component in afrodite mesoporous composite material.In the spherical mesoporous composite material containing meerschalminite In, relative to the meso-porous molecular sieve material described in 100 parts by weight with one-dimensional channels diplopore distributed architecture, The content of the silica introduced by silica gel can be 1-200 parts by weight, preferably 50-150 weights Measure part, more preferably 75-150 parts by weight.
In the present invention, the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture can be Meso-porous molecular sieve material commonly used in the art, and can prepare according to the conventional method.
Present invention also offers a kind of method for preparing the spherical mesoporous composite material containing meerschalminite, this method Comprise the following steps:
(1) providing the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture or preparation has The filter cake of the meso-porous molecular sieve material of one-dimensional channels diplopore distributed architecture, is used as component a;
(2) provide silica gel or prepare the filter cake of silica gel, be used as component b;
(3) the component a, the component b and sepiolite are mixed in high alumina ceramic ball grinder And ball milling, and by the solid powder obtained after ball milling water slurrying, then obtained slurry is sprayed Dry;
Wherein, above-mentioned steps make it that the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 30-60 microns, specific surface area is 100-600 meters squared per grams, and pore volume is 0.5-1.5 mls/g, hole Footpath is in bimodal distribution, and it is bimodal correspond to the first most probable pore size and the second most probable pore size respectively, described the One most probable pore size is 1-10 nanometers, and second most probable pore size is 40-42 nanometers;It is described spherical to contain The content of aluminium element is 5-30 weight %, preferably 10-29 weight % in meerschalminite mesoporous composite material.
In the preferred case, the component a causes the flat of the spherical mesoporous composite material containing meerschalminite Equal particle diameter is 35-55 microns, and specific surface area is 100-600 meters squared per grams, and pore volume is 0.8-1.2 milliliters / gram, first most probable pore size is 1-10 nanometers, and second most probable pore size is 42-44 nanometers.
In step (1), the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture is prepared The process of filter cake can include:In the presence of template, trimethylpentane and ethanol, by tetramethoxy Silane is contacted with sour agent, and the mixture obtained after contact is carried out into crystallization and filtering.
The template, ethanol, the mol ratio of trimethylpentane and tetramethoxy-silicane can be 1: 100-500:200-500:50-200, preferably 1:180-400:250-400:70-150.
The template can be various templates commonly used in the art.Preferably, the template For triblock copolymer polyoxyethylene-poly-oxypropylene polyoxyethylene, the template can be commercially available (for example, Aldrich can be purchased from, trade name P123, molecular formula is EO20PO70EO20), It can also be prepared by existing various methods.When the template be PULLRONIC F68- During polyoxyethylene, molal quantity being averaged according to polyoxyethylene-poly-oxypropylene polyoxyethylene of the template Molecular weight calculation is obtained.
The material or mixture that the sour agent can be used for adjusting pH value for various routines are (such as molten Liquid).The sour agent is preferably used in form of an aqueous solutions, and its pH value can be 1-6, preferably 3-5. It is highly preferred that acetic acid and sodium acetate buffer solution that it is 1-6 (more preferably 3-5) that the sour agent, which is pH value,.
The condition that tetramethoxy-silicane is contacted with sour agent can include:Temperature is 10-60 DEG C, and the time is 10-72 hours, pH value was 1-7.In order to be more beneficial for the uniform mixing between each material, four methoxy Base silane is contacted with sour agent and preferably carried out under agitation.The consumption of the sour agent is preferably so that four methoxies The pH value of base silane and the haptoreaction system of sour agent is 1-7.
The condition of the crystallization can include:Temperature is 30-150 DEG C, and the time is 10-72 hours.It is preferred that In the case of, the condition of the crystallization includes:Temperature is 40-100 DEG C, and the time is 10-48 hours.It is described Crystallization is implemented by hydrothermal crystallization method.
There is the mistake of the filter cake of the meso-porous molecular sieve material of one-dimensional channels diplopore distributed architecture in above-mentioned preparation Cheng Zhong, can be included by filtering with the process for obtaining filter cake:After filtration, with deionized water repeatedly Wash (washing times can be 2-10), then carry out suction filtration.
In step (1), " meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture is provided " It can be the production for directly weighing or choosing the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture The meso-porous molecular sieve material of product or preparation with one-dimensional channels diplopore distributed architecture.It is described to have The preparation method of the meso-porous molecular sieve material of one-dimensional channels diplopore distributed architecture can be according to the conventional method Implement, for example, its preparation method can include:Being prepared according to the above method has one-dimensional channels diplopore point The filter cake of the meso-porous molecular sieve material of cloth structure, then by gained filtration cakes torrefaction, and will be obtained after drying Template removal in product.The condition of the removed template method can include:Temperature is 300-600 DEG C, Time is 10-80 hours.
In step (2), preparing the process of the filter cake of silica gel can include:By waterglass and inorganic acid Contacted with glycerine, and the mixture obtained after contact is filtered.
There is no particular limitation for the condition that waterglass is contacted with inorganic acid and glycerine, can be according to preparing silicon Suitably determined in the common process of glue.Under preferable case, waterglass is contacted with inorganic acid and glycerine Condition can include:Temperature is 10-60 DEG C, preferably 20-40 DEG C;Time is 1-5 hours, is preferably 1.5-3 hour;PH value is 2-4.
In order to be more beneficial for the uniform mixing between each material, waterglass and inorganic acid and glycerine haptoreaction Process preferably carry out under agitation.
The waterglass is the aqueous solution of sodium metasilicate, and its concentration can be 10-50 weight %, be preferably 12-30 weight %.
The inorganic acid can be various inorganic acids commonly used in the art, for example, can for sulfuric acid, At least one of nitric acid and hydrochloric acid.The inorganic acid can be used in pure form, can also be with it The form of the aqueous solution is used.The consumption of the inorganic acid is preferably so that the haptoreaction of waterglass and inorganic acid The pH value of system is 2-4.
In step (2), " offer silica gel " can directly weigh or choose silica gel product, can also It is to prepare silica gel.Preparing the method for silica gel can implement according to the conventional method, for example, can include:Root The filter cake of silica gel is prepared according to the above method, then by gained filtration cakes torrefaction.
In step (3), relative to the component a of 100 parts by weight, the consumption of the component b is 1-200 parts by weight, preferably 75-150 parts by weight;The consumption of the sepiolite is 1-100 parts by weight, Preferably 25-100 parts by weight.
In step (3), there is no particular limitation for concrete operation method and condition of the present invention to ball milling, It is defined by not destroying or not destroying carrier structure substantially and enter silica gel in carrier duct.Art technology Personnel can select various suitable conditions to implement the present invention according to mentioned above principle.In preferred situation Under, the ball milling can be carried out in ball mill, and the inwall of ball grinder is high alumina ceramic in the ball mill, The diameter of abrading-ball in ball mill can be 2-3mm;The quantity of abrading-ball can be entered according to the size of ball grinder Row is reasonably selected, and for the ball grinder that size is 50-150ml, can generally use 1 abrading-ball; The material of the abrading-ball is high alumina ceramic.In situations where it is preferred, aluminium element contains in the high alumina ceramic Measure as 30-40 weight %.There is no particular limitation in source of the present invention to the high alumina ceramic ball grinder, For example, can be by commercially available.The condition of the ball milling can include:The rotating speed of abrading-ball can be 300-500r/min;Temperature in high alumina ceramic ball grinder can be 15-100 DEG C, preferably 40-80 DEG C; The time of ball milling can be 0.1-100 hours, preferably 0.5-10 hours.
In step (3), the process by the solid powder water slurrying obtained after ball milling can be at 25-60 DEG C Lower progress.In pulping process, the weight ratio of the consumption of solid powder and water can be 1:0.1-2, it is excellent Elect 1 as:0.3-1, more preferably 1:0.5-1.
In step (3), the spray drying can be implemented according to conventional mode, for example can be Carried out in atomizer.The condition of the spray drying can include:Temperature is 100-300 DEG C, rotation Rotating speed can be 10000-15000r/min;Under preferable case, the condition of the spray drying includes:Temperature Spend for 150-250 DEG C, the rotating speed of rotation is 11000-13000r/min.
In step (3), when the component a is mesoporous point with one-dimensional channels diplopore distributed architecture The filter cake of son sieve material, when the component b is the filter cake of silica gel, namely when step (1) has to prepare There is the process of the filter cake of the meso-porous molecular sieve material of one-dimensional channels diplopore distributed architecture, step (2) is system During the process of the filter cake of standby silica gel, the preparation method of the spherical mesoporous composite material containing meerschalminite may be used also With including:After the spray drying of step (3), template is removed in the product obtained from spray drying Agent.The condition of the removed template method can include:Temperature is 300-600 DEG C, and the time is that 10-80 is small When;It is preferred that in the case of, temperature is 450-550 DEG C, and the time is 15-70 hours.
Present invention also offers the spherical mesoporous composite material containing meerschalminite prepared by the above method.
Present invention also offers a kind of loaded catalyst, the catalyst contains carrier and is supported on the load P-methyl benzenesulfonic acid on body, wherein, the carrier is situated between for the above-mentioned spherical meerschalminite that contains that the present invention is provided Hole composite material.
In the loaded catalyst, the content of the carrier and p-methyl benzenesulfonic acid is not limited particularly It is fixed, can suitably it be determined according to the conventional loaded catalyst in this area, for example, with described negative On the basis of the gross weight of supported catalyst, the content of p-methyl benzenesulfonic acid can be 1-50 weight %, be preferably 5-50 weight %;The content of the carrier is 50-99 weight %, preferably 50-95 weight %.
In the present invention, the loaded catalyst can be according to various method systems commonly used in the art It is standby, it is only necessary to by p-methyl benzenesulfonic acid load on the carrier.
In a preferred embodiment, in order that the loaded catalyst prepared may be repeated profit With, and higher reaction raw materials conversion ratio still can be obtained during recycling, prepare load The method of type catalyst includes:Carrier, p-methyl benzenesulfonic acid and water are well mixed, and by obtained mixing Thing is spray-dried, wherein, the carrier for the present invention provide it is above-mentioned it is spherical containing meerschalminite it is mesoporous Composite.
It is above-mentioned prepare loaded catalyst during, with the carrier and total consumption of p-methyl benzenesulfonic acid On the basis of, the consumption of p-methyl benzenesulfonic acid can be 1-50 weight %, preferably 5-50 weight %;It is described The consumption of carrier can be 50-99 weight %, preferably 50-95 weight %.
The spray drying can be implemented according to conventional mode, for example, can be carried out in atomizer.Institute Stating the condition of spray drying can include:Temperature is 100-300 DEG C, and the rotating speed of rotation can be 10000-15000r/min;Under preferable case, the condition of the spray drying includes:Temperature is 150-250 DEG C, the rotating speed of rotation is 11000-13000r/min.
Present invention also offers the loaded catalyst prepared by above-mentioned spray drying process.
Present invention also offers the application of above-mentioned loaded catalyst in the esterification reaction.
Present invention also offers a kind of preparation method of acid isopropyl, this method includes:In catalyst In the presence of, under conditions of esterification, contact oleic acid and isopropanol, to obtain acid isopropyl, Characterized in that, the catalyst is loaded catalyst of the present invention.
In the preparation method of the acid isopropyl, the consumption of oleic acid and isopropanol is not limited particularly It is fixed, acid isopropyl is obtained as long as can react, but in order to improve the utilization rate of raw material, preferably feelings Under condition, the mol ratio of oleic acid and isopropanol is 1:0.5-10, preferably 1:1-5.
Also there is no particular limitation for the consumption of the catalyst, can be prepared according to conventional acid isopropyl Technique is suitably determined.Under preferable case, relative to the oleic acid of 100 parts by weight, the catalyst Consumption be 1-15 parts by weight, more preferably 2-14 parts by weight.
It is described anti-in order to be more beneficial for the progress of esterification in the acid isopropyl preparation process It should be carried out preferably in there-necked flask, i.e. 25~100 DEG C of the reaction temperature.Reaction time can be 1-20 Hour, preferably 2-15 hours.
The preparation method of the acid isopropyl is additionally may included in after esterification terminates, to final anti- Mixture is answered to carry out suction filtration separation, and vacuum is done at 25-200 DEG C by the isolated solid product of suction filtration It is dry 1-24 hours;It is preferred that being dried in vacuo 6-10 hours at 50-150 DEG C, to reclaim catalyst.
The present invention will be described in detail by way of examples below.
In the following Examples and Comparative Examples, polyoxyethylene-poly-oxypropylene polyoxyethylene is purchased from Aldrich Company, is abbreviated as P123, and molecular formula is EO20PO70EO20, it is in the registration number of U.S. chemical abstract 9003-11-6 material, average molecular mass Mn is 5800.
In following examples and comparative example, X-ray diffraction analysis are purchased from German Bruker AXS companies Model D8Advance X-ray diffractometer on carry out;Scanning electron microscope analysis is purchased from U.S. FEI Carried out in the model XL-30 of company SEM;Pore structure parameter is analyzed purchased from the U.S. Carried out on the model Autosorb-1 of Kang Ta companies nitrogen adsorption desorption instrument, wherein, before being tested, Sample is deaerated 4 hours at 200 DEG C;The analysis of reaction product liquid phase ingredient is purchased from Britain Agilent Carried out on company's 7890A/5973N gas chromatograph-mass spectrometers.Aluminium content result is surveyed by XPS Analysis instrument .
In following EXPERIMENTAL EXAMPLE and Experimental comparison's example, the conversion ratio of oleic acid and the selectivity of acid isopropyl Calculated and obtained according to below equation.
Consumption × 100% of the conversion ratio (%) of oleic acid=(content of oleic acid in consumption-reaction product of oleic acid) ÷ oleic acid The theoretical yield of the actual production ÷ acid isopropyls of selectivity (%)=acid isopropyl of acid isopropyl × 100%
The present invention will be described in detail by way of examples below.
Embodiment 1
The present embodiment is used to illustrate that the spherical mesoporous composite material containing meerschalminite and support type of the present invention to be urged Agent and their preparation method.
(1) spherical mesoporous composite material containing meerschalminite is prepared
By 1.0g (0.0002mol) triblock copolymer surfactant P123 and 1.69g (0.037mol) Ethanol be added to 28ml, pH value be 4 acetic acid and sodium acetate buffer in, stirred at 15 DEG C to P123 is completely dissolved, the solution obtained backward in add 6g (0.053mol) trimethylpentane, Stir 8h at 15 DEG C, then add 2.13g (0.014mol) tetramethoxy-silicane thereto, 15 DEG C, PH value be 4.5 under conditions of stir 20h, obtained solution is then transferred to polytetrafluoroethyllining lining In reactor, the crystallization 24h at 60 DEG C, then carry out filtering and and be washed with deionized 4 times, so Suction filtration obtains the filter cake A1 of the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture afterwards.
The sulfuric acid solution and glycerine that the waterglass and concentration for being 15 weight % by concentration are 12 weight % with Weight ratio is 5:1:1 is mixed and haptoreaction 2 hours at 30 DEG C, is then 98 weights with concentration The sulfuric acid for measuring % adjusts pH value to 3, then carries out suction filtration to obtained reaction mass, and use distilled water Washing to sodium ions content is 0.02 weight %, obtains the filter cake B1 of silica gel.
10g filter cake A1,10g filter cake B1 and 10g sepiolites of above-mentioned preparation are put into 100ml together (wherein, the material of ball grinder and abrading-ball is high alumina ceramic, aluminium element in the high alumina ceramic in ball grinder Content be 35 weight %, a diameter of 3mm of abrading-ball, quantity be 1, rotating speed is 400r/min). Ball grinder is closed, temperature is ball milling 1 hour at 60 DEG C in ball grinder, obtains 30g solid powders;Will The solid powder is dissolved in 30 grams of deionized waters, is sprayed at 200 DEG C in the case where rotating speed is 12000r/min Mist is dried;By the product obtained after spray drying in Muffle furnace at 500 DEG C calcine 24 hours, removing Template, obtaining 28 grams has the spherical composite mesoporous containing meerschalminite of one-dimensional channels diplopore distributed architecture Material C 1.According to the result of XPS Analysis, the content of aluminium is 18 weight % in C1.
(2) loaded catalyst is prepared
At 25 DEG C, the spherical composite mesoporous materials containing meerschalminite of 30g that will be prepared in above-mentioned steps (1) Material C1 is put into deionized water together with p-methyl benzenesulfonic acid, stirring to dissolving, and spherical containing meerschalminite The weight ratio of mesoporous composite material C1 and p-methyl benzenesulfonic acid is 50:50, deionized water and p-methyl benzenesulfonic acid Mol ratio is 25:1, it is spray-dried at 200 DEG C in the case where rotating speed is 12000r/min, obtains support type and urge Agent Cat-1.
With XRD, ESEM and U.S.'s Kang Ta companies Atsorb-1 types instrument come to the support type to first Benzene sulfonic acid catalyst is characterized.
Fig. 1 is X-ray diffracting spectrum, the XRD for being the spherical C1 of mesoporous composite material containing meerschalminite spectrums Figure, abscissa is 2 θ, and ordinate is intensity.The low-angle spectral peak occurred in XRD spectra, ball Shape mesoporous composite material containing meerschalminite C1 has one-dimensional channels diplopore distribution knot specific to mesoporous material Structure.
Fig. 2 is the SEM ESEMs of the spherical C1 of mesoporous composite material containing meerschalminite microscopic appearance Figure.As seen from the figure, the spherical C1 of mesoporous composite material containing meerschalminite microscopic appearance is that particle diameter is 30-60 μm of Mesoporous Spheres.
Fig. 3 is the spherical C1 of mesoporous composite material containing meerschalminite pore size distribution curve.
The spherical C1 of mesoporous composite material containing meerschalminite and loaded catalyst Cat-1 pore structure parameter It is as shown in table 1 below.
Table 1
Sample Specific surface area (m2/g) Pore volume (ml/g) Most probable pore size*(nm) Particle diameter (μm)
Composite C1 200 1.2 8,42 50
Catalyst Cat-1 170 0.8 3,27 50
*:First most probable pore size and the second most probable pore size are separated with comma:It is the first most probable pore size before comma, It is the second most probable pore size after comma.
Spherical mesoporous composite material containing meerschalminite is being loaded to toluene it can be seen from the data of upper table 1 After sulfonic acid, specific surface area and pore volume have reduced, and this explanation is during load-reaction to toluene Sulfonic acid enters the inside of the spherical mesoporous composite material containing meerschalminite.
Comparative example 1
Spherical mesoporous composite material containing meerschalminite and supported catalyst are prepared according to the method for embodiment 1 Agent, it is different, sepiolite is added without during the mesoporous composite material as carrier is prepared, from And mesoporous composite material D1 and loaded catalyst Cat-D-1 is made respectively.According to XPS Analysis Result, the content of aluminium is 11 weight % in D1.
Comparative example 2
Spherical mesoporous composite material containing meerschalminite and supported catalyst are prepared according to the method for embodiment 1 Agent, it is different, during loaded catalyst is prepared, with the bar-shaped mesoporous dioxy of identical weight SiClx SBA-15 (being purchased from high-tech limited company of Jilin University) replaces having one-dimensional channels diplopore The filter cake A1 of the meso-porous molecular sieve material of distributed architecture, so that mesoporous composite material D2 is made respectively and negative Supported catalyst Cat-D-2.According to the result of XPS Analysis, the content of aluminium is 12 weights in D2 Measure %.
Comparative example 3
Spherical mesoporous composite material containing meerschalminite and supported catalyst are prepared according to the method for embodiment 1 Agent, except that, the material of ball grinder is during the mesoporous composite material as carrier is prepared Polytetrafluoroethylene (PTFE), Material quality of grinding balls is agate.So as to which obtained mesoporous composite material D3 and support type are urged respectively Agent Cat-D-3.According to the result of XPS Analysis, the content of aluminium is 4 weight % in D3.
Comparative example 4
Spherical mesoporous composite material containing meerschalminite and supported catalyst are prepared according to the method for embodiment 1 Agent, it is different, the step of not being spray-dried during preparing loaded catalyst, and only lead to P-methyl benzenesulfonic acid is supported on spherical mesoporous composite material containing meerschalminite by the method for crossing dipping, so as to make Obtain loaded catalyst Cat-D-4.
Embodiment 2
The present embodiment is used to illustrate that the spherical mesoporous composite material containing meerschalminite and support type of the present invention to be urged Agent and their preparation method.
(1) spherical mesoporous composite material containing meerschalminite is prepared
By 1.0g (0.0002mol) triblock copolymer surfactant P123 and 1.84g (0.04mol) Ethanol be added to 28ml, pH value be 5 acetic acid and sodium acetate buffer in, stirred at 15 DEG C to P123 is completely dissolved, the solution obtained backward in add 9.12g (0.08mol) trimethylpentane, Stir 8h at 15 DEG C, then add 3.04g (0.02mol) tetramethoxy-silicane thereto, 25 DEG C, PH value be 5.5 under conditions of stir 15h, obtained solution is then transferred to polytetrafluoroethyllining lining In reactor, the crystallization 10h at 100 DEG C, then carry out filtering and and be washed with deionized 4 times, Then suction filtration obtains the filter cake A2 of the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture.
The sulfuric acid solution and glycerine that the waterglass and concentration for being 15 weight % by concentration are 12 weight % with Weight ratio is 4:1:1 is mixed and haptoreaction 1.5 hours at 40 DEG C, is then 98 weights with concentration The sulfuric acid for measuring % adjusts pH value to 2, then carries out suction filtration to obtained reaction mass, and use distilled water Washing to sodium ions content is 0.02 weight %, obtains the filter cake B2 of silica gel.
20g filter cake A2,15g filter cake B2 and 15g sepiolites of above-mentioned preparation are put into 100ml together (wherein, the material of ball grinder and abrading-ball is high alumina ceramic, aluminium element in the high alumina ceramic in ball grinder Content be 35 weight %, a diameter of 3mm of abrading-ball, quantity be 1, rotating speed is 300r/min). Ball grinder is closed, temperature is ball milling 0.5 hour at 80 DEG C in ball grinder, obtains 50g solid powders; The solid powder is dissolved in 36 grams of deionized waters, at 250 DEG C in the case where rotating speed is 11000r/min Spray drying;By the product obtained after spray drying in Muffle furnace at 550 DEG C calcine 15 hours, take off Template agent removing, obtains 30 grams of spherical C2 of mesoporous composite material containing meerschalminite.According to photoelectron spectroscopy point The content of aluminium is 10 weight % in the result of analysis, C2.
(2) loaded catalyst is prepared
At 25 DEG C, the spherical composite mesoporous materials containing meerschalminite of 20g that will be prepared in above-mentioned steps (1) Material C2 is put into deionized water together with p-methyl benzenesulfonic acid, stirring to dissolving, and spherical containing meerschalminite The weight ratio of mesoporous composite material C2 and p-methyl benzenesulfonic acid is 95:5, deionized water and p-methyl benzenesulfonic acid Mol ratio is 25:1, it is spray-dried at 150 DEG C in the case where rotating speed is 13000r/min, obtains support type and urge Agent Cat-2.
The spherical C2 of mesoporous composite material containing meerschalminite and loaded catalyst Cat-2 pore structure parameter It is as shown in table 2 below.
Table 2
Sample Specific surface area (m2/g) Pore volume (ml/g) Most probable pore size*(nm) Particle diameter (μm)
Composite C2 270 1.3 9,41 52
Catalyst Cat-2 240 0.9 3.5,32 45
*:First most probable pore size and the second most probable pore size are separated with comma:It is the first most probable pore size before comma, It is the second most probable pore size after comma.
Spherical mesoporous composite material containing meerschalminite is being loaded to toluene it can be seen from the data of upper table 2 After sulfonic acid, specific surface area and pore volume have reduced, and this explanation is during load-reaction to toluene Sulfonic acid enters the inside of the spherical mesoporous composite material containing meerschalminite.
Embodiment 3
The present embodiment is used to illustrate that the spherical mesoporous composite material containing meerschalminite and support type of the present invention to be urged Agent and their preparation method.
(1) spherical mesoporous composite material containing meerschalminite is prepared
By 1.0g (0.0002mol) triblock copolymer surfactant P123 and 3.68g (0.08mol) Ethanol be added to 28ml, pH value be 3 acetic acid and sodium acetate buffer in, stirred at 15 DEG C to P123 is completely dissolved, the solution obtained backward in add 5.7g (0.05mol) trimethylpentane, Stir 8h at 15 DEG C, then add 4.56g (0.03mol) tetramethoxy-silicane thereto, 40 DEG C, PH value be 3.5 under conditions of stir 10h, obtained solution is then transferred to polytetrafluoroethyllining lining In reactor, the crystallization 48h at 40 DEG C, then carry out filtering and and be washed with deionized 4 times, so Suction filtration obtains the filter cake A3 of the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture afterwards.
The sulfuric acid solution and glycerine that the waterglass and concentration for being 15 weight % by concentration are 12 weight % with Weight ratio is 6:1:1 is mixed and haptoreaction 3 hours at 20 DEG C, is then 98 weights with concentration The sulfuric acid for measuring % adjusts pH value to 4, then carries out suction filtration to obtained reaction mass, and use distilled water Washing to sodium ions content is 0.02 weight %, obtains the filter cake B3 of silica gel.
20g filter cake A3,30g filter cake B3 and 5g sepiolites of above-mentioned preparation are put into 100ml together (wherein, the material of ball grinder and abrading-ball is high alumina ceramic, aluminium element in the high alumina ceramic in ball grinder Content be 35 weight %, a diameter of 3mm of abrading-ball, quantity be 1, rotating speed is 500r/min). Ball grinder is closed, temperature is ball milling 10 hours at 40 DEG C in ball grinder, obtains 55g solid powders; The solid powder is dissolved in 30 grams of deionized waters, at 150 DEG C in the case where rotating speed is 13000r/min Spray drying;By the product obtained after spray drying in Muffle furnace at 450 DEG C calcine 70 hours, take off Template agent removing, obtains 33 grams of spherical C3 of mesoporous composite material containing meerschalminite.According to photoelectron spectroscopy point The content of aluminium is 29 weight % in the result of analysis, C3.
(2) loaded catalyst is prepared
At 25 DEG C, the spherical composite mesoporous materials containing meerschalminite of 20g that will be prepared in above-mentioned steps (1) Material C3 is put into deionized water together with p-methyl benzenesulfonic acid, stirring to dissolving, and spherical containing meerschalminite The weight ratio of mesoporous composite material C3 and p-methyl benzenesulfonic acid is 85:15, deionized water and p-methyl benzenesulfonic acid Mol ratio is 25:1, it is spray-dried at 250 DEG C in the case where rotating speed is 11000r/min, obtains support type and urge Agent Cat-3.
The spherical C3 of mesoporous composite material containing meerschalminite and loaded catalyst Cat-3 pore structure parameter It is as shown in table 3 below.
Table 3
Sample Specific surface area (m2/g) Pore volume (ml/g) Most probable pore size*(nm) Particle diameter (μm)
Composite C3 185 0.9 9.5,42 45
Catalyst Cat-3 136 0.61 7,31 53
*:First most probable pore size and the second most probable pore size are separated with comma:It is the first most probable pore size before comma, It is the second most probable pore size after comma.
Spherical mesoporous composite material containing meerschalminite is being loaded to toluene it can be seen from the data of upper table 3 After sulfonic acid, specific surface area and pore volume have reduced, and this explanation is during load-reaction to toluene Sulfonic acid enters the inside of the spherical mesoporous composite material containing meerschalminite.
EXPERIMENTAL EXAMPLE 1
The present embodiment is used for the application for illustrating the loaded catalyst that the present invention is provided and oleic acid is different The preparation method of propyl ester.
Loaded catalyst Cat-1 prepared by embodiment 1 is dried in vacuo 6 hours at 150 DEG C, cold But to after room temperature, 0.5 gram is weighed, oleic acid 6g, isopropanol 2.8g are sequentially added in there-necked flask, Cat-10.5g, is heated to after 75 DEG C, reaction half an hour, centrifuges, reacted using gas chromatographic analysis Product liquid composition, oleic acid conversion 100%, acid isopropyl selectivity 100%, yield 76%, solid Catalyst Cat-1 is dried in vacuo 6 hours at 150 DEG C, is cooled to after room temperature, is recycled after recovery.
EXPERIMENTAL EXAMPLE 2-3 and Experimental comparison's example 1-4
Acid isopropyl is prepared according to the method for EXPERIMENTAL EXAMPLE 1, except that, embodiment is used respectively Loaded catalyst prepared by 2-3 and comparative example 1-4 replaces the loaded catalyst Cat-1.As a result, The conversion ratio and acid isopropyl selective data for each calculating obtained oleic acid are as shown in table 4 below.
Table 4
Catalyst The conversion ratio of oleic acid Acid isopropyl selectivity
EXPERIMENTAL EXAMPLE 1 Cat-1 100% 100%
EXPERIMENTAL EXAMPLE 2 Cat-2 99% 100%
EXPERIMENTAL EXAMPLE 3 Cat-3 99% 100%
Experimental comparison's example 1 Cat-D-1 98% 99%
Experimental comparison's example 2 Cat-D-2 98% 99%
Experimental comparison's example 3 Cat-D-3 60% 95%
Experimental comparison's example 4 Cat-D-4 50% 90%
EXPERIMENTAL EXAMPLE 4-6 and Experimental comparison's example 5-8
Acid isopropyl is prepared according to the method for EXPERIMENTAL EXAMPLE 1, except that, respectively with from experiment The catalyst that embodiment 1-3 and Experimental comparison's example 1-4 are reclaimed replaces the loaded catalyst Cat-1.Knot Really, the conversion ratio and acid isopropyl selective data for each calculating obtained oleic acid are as shown in table 5 below.
Table 5
Catalyst The conversion ratio of oleic acid Acid isopropyl selectivity
EXPERIMENTAL EXAMPLE 4 The Cat-1 of recovery 85% 100%
EXPERIMENTAL EXAMPLE 5 The Cat-2 of recovery 70% 100%
EXPERIMENTAL EXAMPLE 6 The Cat-3 of recovery 65% 100%
Experimental comparison's example 5 The Cat-D-1 of recovery 63% 99%
Experimental comparison's example 6 The Cat-D-2 of recovery 60% 99%
Experimental comparison's example 7 The Cat-D-3 of recovery 55% 90%
Experimental comparison's example 8 The Cat-D-4 of recovery 50% 80%
Using the described spherical containing meerschalminite Jie of the present invention it can be seen from the data of above-mentioned table 4 and 5 The loaded catalyst that hole composite material is made as carrier can show in acid isopropyl preparation process Write the conversion ratio for improving reaction raw materials.Moreover, being urged when the method by being spray-dried prepares the support type During agent, the loaded catalyst may be repeated utilization, and during recycling still Higher reaction raw materials conversion ratio can be obtained.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited to above-mentioned reality The detail in mode is applied, can be to technical side of the invention in the range of the technology design of the present invention Case carries out a variety of simple variants, and these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned embodiment is special Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not The repetition wanted, the present invention no longer separately illustrates to various possible combinations.
In addition, various embodiments of the present invention can be combined randomly, as long as its Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.

Claims (20)

1. a kind of spherical mesoporous composite material containing meerschalminite, it is characterised in that the spherical Hai Pao containing aluminium Stone mesoporous composite material contains sepiolite and the mesopore molecular sieve material with one-dimensional channels diplopore distributed architecture Material, and the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 30-60 microns, compares surface Product is 100-600 meters squared per grams, and pore volume is 0.5-1.5 mls/g, and aperture is in bimodal distribution, and double Peak corresponds to the first most probable pore size and the second most probable pore size respectively, and first most probable pore size is 1-10 Nanometer, second most probable pore size is 40-42 nanometers;
Wherein, the content of aluminium element is 5-30 weights in the spherical mesoporous composite material containing meerschalminite Measure %, preferably 10-29 weight %.
2. composite according to claim 1, wherein, relative to described in 100 parts by weight Meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture, the content of the sepiolite is 1-100 Parts by weight, preferably 25-100 parts by weight;
Preferably, the content of aluminium element is 1-10 weight %, more preferably 2-8 weights in the sepiolite Measure %;It is further preferred that in the spherical mesoporous composite material containing meerschalminite aluminium element weight hundred Divide than the percentage by weight more than aluminium element in the sepiolite.
3. a kind of method for preparing the spherical mesoporous composite material containing meerschalminite, this method includes following step Suddenly:
(1) providing the meso-porous molecular sieve material with one-dimensional channels diplopore distributed architecture or preparation has The filter cake of the meso-porous molecular sieve material of one-dimensional channels diplopore distributed architecture, is used as component a;
(2) provide silica gel or prepare the filter cake of silica gel, be used as component b;
(3) the component a, the component b and sepiolite are mixed in high alumina ceramic ball grinder And ball milling, and by the solid powder obtained after ball milling water slurrying, then obtained slurry is sprayed Dry;
Wherein, above-mentioned steps make it that the average grain diameter of the spherical mesoporous composite material containing meerschalminite is 30-60 microns, specific surface area is 100-600 meters squared per grams, and pore volume is 0.5-1.5 mls/g, hole Footpath is in bimodal distribution, and it is bimodal correspond to the first most probable pore size and the second most probable pore size respectively, described the One most probable pore size is 1-10 nanometers, and second most probable pore size is 40-42 nanometers;It is described spherical to contain The content of aluminium element is 5-30 weight %, preferably 10-29 weight % in meerschalminite mesoporous composite material.
4. method according to claim 3, wherein, in step (3), relative to 100 weights The component a of part is measured, the consumption of the component b is 1-200 parts by weight, preferably 75-150 weight Part;The consumption of the sepiolite is 1-100 parts by weight, preferably 25-100 parts by weight.
5. method according to claim 3, wherein, in step (1), prepare with one-dimensional The process of the filter cake of the meso-porous molecular sieve material of duct diplopore distributed architecture includes:In template, trimethyl In the presence of pentane and ethanol, tetramethoxy-silicane is contacted with sour agent, and will be obtained after contact Mixture carries out crystallization and filtering.
6. method according to claim 5, wherein, template, ethanol, trimethylpentane and The mol ratio of tetramethoxy-silicane is 1:100-500:200-500:50-200, preferably 1:180-400: 250-400:70-150.
7. the method according to claim 5 or 6, wherein, the template is triblock copolymer Thing polyoxyethylene-poly-oxypropylene polyoxyethylene;The sour agent is that the acetic acid and sodium acetate that pH value is 1-6 delay Rush solution;The condition that tetramethoxy-silicane is contacted with sour agent includes:Temperature is 10-60 DEG C, and the time is 10-72 Hour, pH value is 1-7;The condition of the crystallization includes:Temperature is 30-150 DEG C, and the time is 10-72 Hour.
8. method according to claim 3, wherein, in step (2), prepare the filter of silica gel The process of cake includes:Waterglass is contacted with inorganic acid and glycerine, and it is mixed by what is obtained after contact Compound is filtered.
9. method according to claim 8, wherein, waterglass is contacted with inorganic acid and glycerine Condition include:Temperature is 10-60 DEG C, and the time is 1-5 hours, and pH value is 2-4;The inorganic acid For the one or more in sulfuric acid, nitric acid and hydrochloric acid.
10. the method according to claim 3 or 4, wherein, in step (3), the ball The condition of mill includes:The rotating speed of high alumina ceramic abrading-ball is in 300-500r/min, high alumina ceramic ball grinder Temperature is 15-100 DEG C, and the time of ball milling is 0.1-100 hours;The condition of the spray drying includes: 100-300 DEG C of temperature, rotating speed is 10000-15000r/min.
11. the method according to claim 3 or 4, wherein, the component a is with one-dimensional hole The filter cake of the meso-porous molecular sieve material of road diplopore distributed architecture, the component b is the filter cake of silica gel, described Method also includes:After the spray-drying process of step (3), in the product obtained from spray drying Removed template method;Preferably, the condition of the removed template method includes:Temperature is 300-600 DEG C, when Between be 10-80 hours.
12. what is prepared as the method described in any one in claim 3-11 is spherical containing meerschalminite Jie Hole composite material.
13. a kind of loaded catalyst, the catalyst contain carrier and load on the carrier to first Benzene sulfonic acid, it is characterised in that the carrier is the ball described in any one in claim 1-2 and 12 Shape mesoporous composite material containing meerschalminite.
14. catalyst according to claim 13, wherein, with the total of the loaded catalyst On the basis of weight, the content of p-methyl benzenesulfonic acid is 1-50 weight %, preferably 5-50 weight %;It is described The content of carrier is 50-99 weight %, preferably 50-95 weight %.
15. a kind of method for preparing loaded catalyst, this method includes:By carrier, p-methyl benzenesulfonic acid It is well mixed with water, and obtained mixture is spray-dried, wherein, the carrier will for right Seek the spherical mesoporous composite material containing meerschalminite described in any one in 1-2 and 12.
16. method according to claim 15, wherein, with the carrier and p-methyl benzenesulfonic acid On the basis of total consumption, the consumption of p-methyl benzenesulfonic acid is 1-50 weight %, preferably 5-50 weight %;Institute The consumption for stating carrier is 50-99 weight %, preferably 50-95 weight %.
17. the loaded catalyst prepared as the method described in claim 15 or 16.
18. the loaded catalyst in claim 13-14 and 17 described in any one is in esterification In application.
19. a kind of preparation method of acid isopropyl, wherein, this method includes:In the presence of catalyst Under, under conditions of esterification, contact oleic acid and isopropanol, to obtain acid isopropyl, it is special Levy and be, the catalyst is the supported catalyst described in any one in claim 13-14 and 17 Agent.
20. preparation method according to claim 19, wherein, the mol ratio of oleic acid and isopropanol For 1:0.5-10;Preferably, relative to the oleic acid of 100 parts by weight, the consumption of the catalyst is 1-15 Parts by weight, more preferably 2-14 parts by weight.
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