CN102847547A - Inorganic binder containing phosphorus and aluminum compounds - Google Patents
Inorganic binder containing phosphorus and aluminum compounds Download PDFInfo
- Publication number
- CN102847547A CN102847547A CN201110180891XA CN201110180891A CN102847547A CN 102847547 A CN102847547 A CN 102847547A CN 201110180891X A CN201110180891X A CN 201110180891XA CN 201110180891 A CN201110180891 A CN 201110180891A CN 102847547 A CN102847547 A CN 102847547A
- Authority
- CN
- China
- Prior art keywords
- weight
- aluminium
- inorganic binder
- clay
- alumina source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The inventive inorganic binder containing phosphorus and aluminum compounds comprises (by weight percentages) alumina 15-40, phosphorus pentoxide 45-80, and clay 1-40. The binder has P/Al weight ratio of 1-6, pH of 1-3, and solid content of 15-60 wt%. The preparation method includes mixing acid-soluble aluminum hydroxide and/or alumina, clay and deionized water; pulping into pulp having solid content of 15-45%; adding concentrated phosphoric acid into the pulp under stirring at P/Al weight ratio of 1-6; and reacting at 50-99 DEG C for 15-90 min. The preparation method can avoid binder solidification due to overheat caused by heat release of non-uniform local instantaneous intensive reaction of materials. The binder can improve wear resistance, activity and selectivity of FCC catalyst.
Description
Technical field
The present invention relates to inorganic binder of a kind of phosphorous aluminium compound for Cracking catalyst and preparation method thereof.
Background technology
RFCC uses the Cracking catalyst of macromolecule sieve content usually, has preferably scuff resistance in order to make it, and adhesive property commonly used preferably binding agent for example uses the binding agent of phosphorous aluminium compound.
A kind of preparation method of phosphorated aluminiferous collosol is disclosed respectively among CN1070384A and the CN1070385A.The preparation method that CN1070384A provides is: orthophosphoric acid or aluminium dihydrogen phosphate are added in the aluminium colloidal sol, then make phosphorated aluminiferous collosol through high temperature depolymerization, the step such as concentrated.The preparation method that CN1070385A provides is: with metallic aluminium, hydrochloric acid (or aluminium chloride) and orthophosphoric acid (or aluminium dihydrogen phosphate) mixed liquor react under certain conditions, high temperature depolymerization, concentrated and make phosphorated aluminiferous collosol.Not only cost is higher for these two kinds of methods, and preparation process is complicated.
The inorganic binder of phosphorous aluminium compound also can be by phosphoric acid and aluminium hydroxide or aluminium oxide reaction are obtained, as described in " inorganic chemicals industry " the 4th phase of the 41st volume in 2009 " preparation of aluminum phosphate and application thereof ".CN1417296A and CN1180059C provide a kind of not chloride phosphorated aluminiferous collosol that can be used for catalyst for cracking petroleum hydrocarbons and preparation method thereof, this phosphorated aluminiferous collosol contains the P of the Al of 2～10 % by weight and 5～20 % by weight and not chloride, its P/Al weight ratio is that 1.2～6, pH is 1.0～2.5.Its preparation method is: can be dispersed into the slurries that solid content is 15～35 % by weight by the aluminium hydroxide of sour peptization or aluminium oxide and the making beating of decationizing water with a kind of, stir lower in these slurries the part by weight adding SPA according to P/Al=1.2～6, then be warming up to 65～95 ℃, and under this temperature, reacted, until become transparent colloid 15～90 minutes.This not chloride phosphorated aluminiferous collosol can mix use with the colloidal sol containing chloride and aluminium of routine.Yet this phosphorus aluminium colloidal sol preparation method easy fluctuation because of reaction condition in preparation process causes reactant to solidify, and the Cracking catalyst activity for preparing with the phosphorus aluminium glue that the method prepares is not high.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency for existing phosphorated aluminiferous collosol inorganic binder, and inorganic binder of a kind of phosphorous aluminium compound that can be used for catalyst for cracking petroleum hydrocarbons and preparation method thereof is provided.
The invention provides a kind of preparation method of inorganic binder of phosphorous aluminium compound, comprising:
(1) with alumina source, clay and water making beating, makes the slurries that solid content is 8～45 % by weight; Described alumina source is can be by the aluminium hydroxide of sour peptization and/or aluminium oxide, in the clay of butt and with Al
2O
3The weight ratio of the alumina source of meter is 1～40: 15～40;
(2) stir in the lower slurries that obtain toward step (1) part by weight adding SPA according to P/Al=1～6; P among the wherein said P/Al is the weight of the phosphorus in the described SPA, and Al is the weight of the aluminium in the described alumina source;
(3) slurries that step (2) obtained reacted 15～90 minutes under 50～99 ℃ of temperature.
The present invention also provides a kind of inorganic binder of phosphorous aluminium compound, and take butt weight as benchmark, this binding agent contains with Al
2O
3Meter 15～40 % by weight al compositions are with P
2O
5The phosphorus component of meter 45～80 % by weight, and in butt 1～40 % by weight clay, its P/Al weight ratio is that 1.0～6.0, pH is 1.0～3.5; This binding agent solid content is 15～60 % by weight.
The preparation method of the inorganic binder of phosphorous aluminium compound provided by the invention will add phosphoric acid behind alumina source and the clay prepared slarry again, in the situation of certain P/Al (phosphorus aluminum ratio), and the pH value that can regulate more neatly binding agent; In preparation process because the introducing of clay, mass transfer, the heat transfer of storeroom have been improved, can avoid the adhesive cures that causes because of the inhomogeneous local moment vigorous reaction heat release overtemperature of material, obtain the binding agent of high solids content, the charging rate of phosphoric acid can improve, and do not need high temperature depolymerization, the step such as concentrated in the preparation process, the preparation method is simple.The inorganic binder of the phosphorous aluminium compound that the inventive method obtains, contain clay and phosphorus aluminium colloidal sol, has preferably adhesive property, Cracking catalyst with this binding agent preparation approaches with the Cracking catalyst anti-wear performance that use has the phosphorus aluminium glue binding agent of method preparation now, is also to have higher heavy oil cracking activity unexpectedly; Production low-carbon alkene catalyst aid with this binding agent preparation is used for cracking hydrocarbon oil, and propylene content is higher in the liquefied gas, and productivity of propylene improves.
The specific embodiment
The preparation method of the inorganic binder of phosphorous aluminium compound provided by the invention, clay, alumina source are mixed making beating with water, make the slurries that solid content is 8～45 % by weight, then in resulting slurries, add SPA, be warming up to 50～99 ℃, and under this temperature, reacted 15～90 minutes.Wherein, clay (in butt) and alumina source are (with Al
2O
3Meter) weight ratio is 1～40: 15～40; P/Al (weight ratio) is 1～6, is preferably 1.2～6.0, more preferably 2.0～5.0, and wherein said P/Al is in the weight of elemental phosphorous SPA and ratio in the weight of the alumina source of pure aluminum.Described water can be decationizing water or distilled water.Its concentration of described SPA is 60～98 % by weight, more preferably 75～90 % by weight.The charging rate of phosphoric acid be preferably 0.01-0.10Kg phosphoric acid/minute/the Kg alumina source, more preferably 0.03-0.07Kg phosphoric acid/minute/the Kg alumina source.
Said clay is one or more in kaolin, sepiolite, concave convex rod, rectorite, imvite and the diatomite, is preferably rectorite.Described alumina source is can be by the aluminium hydroxide of sour peptization and/or can be by the aluminium oxide of sour peptization; Described can be by the aluminium oxide of sour peptization one or more in ρ-aluminium oxide, χ-aluminium oxide, η-aluminium oxide, gama-alumina, κ-aluminium oxide, δ-aluminium oxide, the θ-aluminium oxide for example; Said can be by the aluminium hydroxide of sour peptization one or more in gibbsite, surge aluminium stone, promise diaspore, diaspore, boehmite, the boehmite for example.Described alumina source is preferably boehmite.
The inorganic binder preparation method of phosphorous aluminium compound provided by the invention, the consumption of alumina source, clay and phosphoric acid makes in the binding agent that obtains, and take the butt weight of binding agent as benchmark, contains with Al
2O
3The alumina source of meter 15～40 % by weight, the P of 45～80 % by weight
2O
5, and the clay of 1～40 % by weight, its P/Al weight ratio is 1～6: 1, preferred 1.2～6: 1, more preferably 2.0～5.0: 1; The solid content of the inorganic binder of described phosphorous aluminium compound is 15～60 % by weight, and the pH value is 1.0～3.5, and is not chloride.Take the butt weight of binding agent as benchmark, described binding agent preferably comprises the Al that 15～35 % by weight are derived from described alumina source
2O
3, 50～75 % by weight P
2O
5Clay with 8～35 % by weight.
The following examples will the present invention is further illustrated, but therefore do not limit the present invention.
In each embodiment and Comparative Examples, the used raw material of Kaolinite Preparation of Catalyst is as follows:
Boehmite: Shandong Aluminum Plant produces, Al
2O
3Content 61 % by weight;
The SB aluminium hydrate powder: German Condex company produces, Al
2O
3Content 75 % by weight;
The gamma oxidation aluminium powder: German Condex company produces, Al
2O
3Content 95 % by weight;
SPA: chemical pure, 85 % by weight, the Beijing Chemical Plant produces;
Decationized Y sieve water: pH 2.8～3.2, sodium oxide content＜5ppm;
Rare earth superstable Y-type molecular sieve: Qilu Petrochemical Company Zhou village catalyst plant is produced, RE
2O
3Content 0.48 % by weight, Na
2O content 1.4 % by weight;
Kaolin: the special-purpose kaolin of the catalyst that China Kaolin Co., Ltd produces, quartz sand＜3.5 % by weight, Al
2O
344.0 % by weight, Fe
2O
30.56 % by weight, Na
2O 1.5 % by weight, solid content 80 % by weight;
Rectorite: Hebei Zhongxiang Mingliu Rectorite Development Co., Ltd., quartz sand＜3.5 % by weight, Al
2O
339.0 % by weight, Fe
2O
32.0 % by weight, Na
2O 0.03 % by weight, solid content 77 % by weight;
Colloidal sol containing chloride and aluminium (claiming again aluminium colloidal sol): Qilu Petrochemical Company Zhou village catalyst plant is produced, and adds hydrochloric acid by metallic aluminium and makes, and contains Al
2O
3: 20.5 % by weight, Cl:9.55 % by weight, Al/Cl weight ratio 1.1: 1, pH value 2.90;
Hydrochloric acid: chemical pure, concentration 36～38 % by weight, the Beijing Chemical Plant produces;
Chemical analysis and evaluation method are as follows:
Chloride content determination: chlorion is selected the electrode method;
Sodium oxide content is measured: atomic absorption spectrophotometry;
Rare earth oxide content is measured: x ray fluorescence spectrometry;
Alumina content is measured: x ray fluorescence spectrometry;
The catalyst abrasion resistance properties is measured: a certain amount of catalyst is put into fixture, ground 5 hours in the constant gas blowing down, except first hour, rear four hours average abrasion percentage is called the abrasion index of catalyst;
Above analytical method can be referring to " Petrochemical Engineering Analysis method (RIPP test method) " (volume such as Yang Cuiding, Science Press, 1990).
Embodiment 1
This example prepares the inorganic binder of phosphorous aluminium compound provided by the invention.
Under the room temperature (25 ℃), 1.25 kilograms of boehmites (are contained Al
2O
30.76 kilogram), 0.26 kilogram of rectorite (0.20 kilogram of butt) mixes with 1.57 kilograms of decationizing water, pulled an oar 30 minutes, in slurries, add 1.69 kilograms of SPAs (mass concentration 85%) under stirring, phosphoric acid adding speed be 0.03Kg phosphoric acid/minute/the Kg alumina source, be warming up to 70 ℃, then under this temperature, reacted 45 minutes, namely make the inorganic binder of phosphorous aluminium compound.Material proportion sees Table 1.
Embodiment 2～11
The preparation of the inorganic binder of embodiment 2～11 explanations phosphorous aluminium compound provided by the invention.
Under the room temperature (25 ℃), alumina source (aluminium hydroxide or aluminium oxide), clay (rectorite or kaolin) and decationizing water are mixed, pulled an oar 30 minutes, in slurries, add SPA (mass concentration 85%) under stirring, then under 70 ℃ of temperature, reacted 45 minutes, namely make the inorganic binder of phosphorous aluminium compound.Material and proportioning thereof and preparation condition see Table 1.
Comparative Examples 1
Prepare phosphorous and aluminium sol adhesive chlorine by the method that provides among the CN1070384A.
With stirring in 0.81 kilogram of chemical water of 0.81 kilogram of SPA (mass concentration 85%) adding, then under agitation, progressively be added drop-wise in 8 kilograms of colloidal sol containing chloride and aluminiums, the temperature of adding is room temperature (25 ℃), the time of adding is 30 minutes.In the adition process of phosphoric acid, the aluminium colloidal sol more and more thickness that becomes.This sample is placed in the water-bath refluxed 1 hour, bath temperature is 80～90 ℃, namely gets phosphorous after the cooling and aluminium colloidal sol finished product chlorine.Material proportion sees Table 2.
Comparative Examples 2
The method of mentioning by Chinese patent ZL01134264 prepares not chloride phosphorated aluminiferous collosol.
0.66 kilogram of boehmite (is contained Al
2O
30.40 kilogram) with 1.75 kilograms of decationizing water making beating 30 minutes, in slurries, slowly add 2.6 kilograms of SPAs (mass concentration 85%) under stirring, be warming up to 70 ℃, then under this temperature, reacted 45 minutes, namely make water white phosphorated aluminiferous collosol.Material proportion sees Table 2.
Comparative Examples 3
2.5 kilograms of kaolin are joined in 2.5 kilograms of chemical water, and high-speed stirred is made the kaolin slurry of solid content 40 % by weight, then under stirring to wherein adding continuously 0.23 kilogram of SPA, continue high-speed stirred until slurries are even.Material proportion sees Table 2.
Embodiment 12
The preparation of the zeolitic cracking catalyst of phosphorous aluminium inorganic binder provided by the invention is adopted in the explanation of this example.
4 kilograms of (butt) extremely steady y-type zeolite of rare earth are joined in 8 kilograms the water, make the extremely steady y-type zeolite of rare earth slurries, then in zeolite slurry, add 3.5 kilograms of (in butt) kaolin and 1.5 kilograms of (in aluminium oxide) boehmites, pulled an oar 60 minutes, add 0.16 kilogram of hydrochloric acid (concentration 36 % by weight), pulled an oar 20 minutes, obtain slurries, its pH value is 3.1, then adds therein 0.4 kilogram of the phosphorous aluminium inorganic binder that example 3 makes, and pulls an oar 10 minutes, then add 0.6 kilogram of aluminium colloidal sol, pulled an oar spray-drying 30 minutes, 600 ℃ of roastings 2 hours obtain Cracking catalyst.Charge ratio and the abrasion index of catalyst see Table 3.
Embodiment 13～16
The explanation of this example adopts the inorganic binder preparation of phosphorous aluminium compound provided by the invention to contain the Cracking catalyst of zeolite.
The preparation of catalyst is with example 12.Charge ratio and the abrasion index of catalyst see Table 3.
Comparative Examples 4～9
The wear resistance of the zeolitic cracking catalyst of phosphorous aluminium inorganic binder provided by the invention is not adopted in the explanation of this Comparative Examples.
The preparation flow of catalyst is with example 12.Charge ratio and the abrasion index of catalyst see Table 3.
Comparative Examples 10
Under the room temperature (25 ℃), 0.74 kilogram of boehmite (is contained Al
2O
30.45 kilogram) mix with 1.6 kilograms of decationizing water, pulled an oar 30 minutes, stir and in slurries, to add 2.03 kilograms of SPAs (mass concentration 85%) down, phosphoric acid adding speed be 0.03Kg phosphoric acid/minute/the Kg alumina source, owing to exothermic heat of reaction is violent, spontaneously be warming up to 93 ℃, open cooling water and keep this temperature, reacted 45 minutes, obtain the phosphorus al binder, then add 0.39 kilogram of rectorite (0.30 kilogram of butt), pulled an oar 30 minutes.Material proportion sees Table 1.
Comparative Examples 11
According to embodiment 14 Kaolinite Preparation of Catalysts, different is replaces the inorganic binder of the argillaceous phosphorus aluminium compound that embodiment 4 wherein prepares with the prepared rectorite of Comparative Examples 10 and phosphorus al binder mixture.Catalyst forms and abrasion index sees Table 3
Catalyst to above embodiment and Comparative Examples preparation wore out 4 hours under 100% water vapour atmosphere, then according to " Petrochemical Engineering Analysis method (RIPP test method) " (volume such as Yang Cuiding, Science Press, 1990) the RIPP92-90 method in is carried out activity rating, the results are shown in Table 3.
Embodiment 17～19
Respectively the catalyst of 30 gram embodiment 14～16 preparations is carried out 8 hours aging under 800 ℃, 100% steam atmosphere condition.Then be to mix at 20: 80 above-mentioned catalyst through burin-in process and industrial FCC equilibrium catalyst (the industrial trade mark is the FCC equilibrium catalyst of MLC-500, and main character sees Table 4) according to weight ratio.Catalyst mixture is packed in the reactor of small fixed flowing bed-tion reacting device, and feedstock oil oil carries out catalytic cracking shown in the his-and-hers watches 5.Table 6 has provided the catalyst system therefor compositions of mixtures, reaction condition and reaction result.
Comparative Examples 12～15
Method according to embodiment 17～19 is carried out reaction evaluating to Comparative Examples 5,6,8,11 catalyst that prepare.Reaction condition and the results are shown in Table 6.
Table 4
| Project | Industry equilibrium catalyst MLC-500 |
| Tenor, ppm | |
| Ni/V | 9386/1665 |
| Fe/Sb | 6503/2673 |
| Ca | 1714 |
| Little index alive | 60 |
Table 5
Claims (10)
1. the preparation method of the inorganic binder of a phosphorous aluminium compound comprises:
(1) with alumina source, clay and water making beating, obtains the slurries that solid content is 8～45 % by weight; Wherein, in the clay of butt and with Al
2O
3The weight ratio of the alumina source of meter is 1～40: 15～40, and described alumina source is can be by the aluminium hydroxide of sour peptization and/or aluminium oxide;
(2) stir in the lower slurries that obtain toward step (1) part by weight adding SPA according to P/Al=1～6; P is the weight of the phosphorus in the phosphoric acid among the wherein said P/Al, and Al is the weight of the aluminium in the alumina source;
(3) slurries that step (2) obtained were 50～99 ℃ of lower reactions 15～90 minutes.
2. in accordance with the method for claim 1, it is characterized in that take butt weight as benchmark, the inorganic binder of described phosphorous aluminium compound comprises the Al that 15～40 % by weight are derived from described alumina source
2O
3
3. according to claim 1 or 2 described methods, it is characterized in that take butt weight as benchmark, the inorganic binder of described phosphorous aluminium compound comprises the P of 45～80 % by weight
2O
5
4. according to claim 1 or 2 or 3 described methods, it is characterized in that take butt weight as benchmark, the inorganic binder of described phosphorous aluminium compound comprises the clay of 1～40 % by weight.
5. in accordance with the method for claim 4, it is characterized in that described binding agent comprises the clay of 8～35 % by weight.
6. according to each described method of claim 1～5, it is characterized in that described P/Al=2～5.
7. in accordance with the method for claim 1, it is characterized in that said clay is one or more in kaolin, sepiolite, concave convex rod, rectorite, imvite and the diatomite.
8. in accordance with the method for claim 1, it is characterized in that described alumina source is one or more in ρ-aluminium oxide, χ-aluminium oxide, η-aluminium oxide, gama-alumina, κ-aluminium oxide, δ-aluminium oxide, θ-aluminium oxide, gibbsite, surge aluminium stone, promise diaspore, diaspore, boehmite and the boehmite.
9. the inorganic binder of a phosphorous aluminium compound is characterized in that, take butt weight as benchmark, this binding agent contains the Al that 15～40 % by weight are derived from alumina source
2O
3, 45～80 % by weight P
2O
5And 1～40 % by weight clay, the P/Al weight ratio is that 1～6, pH value is 1～3.5, this binding agent solid content is 15～60 % by weight.
10. according to the inorganic binder of phosphorous aluminium compound claimed in claim 9, it is characterized in that described binding agent comprises the Al that 15～35 % by weight are derived from described alumina source
2O
3, 50～75 % by weight P
2O
5With 8～40 % by weight clays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110180891.XA CN102847547B (en) | 2011-06-30 | 2011-06-30 | Inorganic binder containing phosphorus and aluminum compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110180891.XA CN102847547B (en) | 2011-06-30 | 2011-06-30 | Inorganic binder containing phosphorus and aluminum compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102847547A true CN102847547A (en) | 2013-01-02 |
| CN102847547B CN102847547B (en) | 2014-05-28 |
Family
ID=47394761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110180891.XA Active CN102847547B (en) | 2011-06-30 | 2011-06-30 | Inorganic binder containing phosphorus and aluminum compounds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102847547B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613359A (en) * | 2013-12-13 | 2014-03-05 | 杭州中亚新材料科技有限公司 | Inorganic high-temperature adhesive for casting aluminum and aluminum alloy |
| CN107619287A (en) * | 2017-09-13 | 2018-01-23 | 闫振山 | A kind of rotary kiln invades brick and preparation method thereof with compound antidetonation is resistance to |
| CN108025298A (en) * | 2015-07-23 | 2018-05-11 | 雅宝公司 | FCC catalyst additive and adhesive |
| CN116273142A (en) * | 2023-03-06 | 2023-06-23 | 青岛惠城环保科技集团股份有限公司 | Preparation method of diesel catalytic cracking catalyst for increasing yield |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417296A (en) * | 2001-10-30 | 2003-05-14 | 中国石油化工股份有限公司 | Phosphorus-containing aluminium sol adhesive for catalyst and its prepn |
| CN102049291A (en) * | 2009-10-30 | 2011-05-11 | 中国石油天然气股份有限公司 | Hydrocarbon catalytic cracking catalyst and preparation method thereof |
-
2011
- 2011-06-30 CN CN201110180891.XA patent/CN102847547B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417296A (en) * | 2001-10-30 | 2003-05-14 | 中国石油化工股份有限公司 | Phosphorus-containing aluminium sol adhesive for catalyst and its prepn |
| CN102049291A (en) * | 2009-10-30 | 2011-05-11 | 中国石油天然气股份有限公司 | Hydrocarbon catalytic cracking catalyst and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613359A (en) * | 2013-12-13 | 2014-03-05 | 杭州中亚新材料科技有限公司 | Inorganic high-temperature adhesive for casting aluminum and aluminum alloy |
| CN103613359B (en) * | 2013-12-13 | 2015-04-01 | 杭州中亚新材料科技有限公司 | Inorganic high-temperature adhesive for casting aluminum and aluminum alloy |
| CN108025298A (en) * | 2015-07-23 | 2018-05-11 | 雅宝公司 | FCC catalyst additive and adhesive |
| CN108025298B (en) * | 2015-07-23 | 2021-07-06 | 雅宝公司 | FCC catalyst additives and binders |
| CN107619287A (en) * | 2017-09-13 | 2018-01-23 | 闫振山 | A kind of rotary kiln invades brick and preparation method thereof with compound antidetonation is resistance to |
| CN116273142A (en) * | 2023-03-06 | 2023-06-23 | 青岛惠城环保科技集团股份有限公司 | Preparation method of diesel catalytic cracking catalyst for increasing yield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102847547B (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101134905B (en) | Method for improving solid content of catalytic cracking catalyst slurry | |
| CN102049284B (en) | Catalytic cracking propylene additive and preparation method thereof | |
| CN103007990B (en) | Cracking assistant for improving low-carbon olefin concentration | |
| CN106268919B (en) | A kind of Modified Zeolite Y catalyst containing rare earth and phosphorus | |
| CN103007989B (en) | Cracking assistant for improving low-carbon olefin concentration | |
| CN103007986B (en) | Cracking auxiliary agent for improving catalytic cracking low-carbon olefin concentration | |
| CN103785458B (en) | A kind of cracking additive improving low-carbon olefin concentration | |
| CN102049291B (en) | Hydrocarbon catalytic cracking catalyst and preparation method thereof | |
| CN105013525B (en) | A kind of assistant for calalytic cracking for improving low-carbon olefin concentration and preparation method thereof | |
| CN103785456B (en) | A kind of cracking additive improving low-carbon olefin concentration | |
| CN106830003B (en) | SSZ-13/SCM-9 composite molecular screen and its synthetic method | |
| CN102847547B (en) | Inorganic binder containing phosphorus and aluminum compounds | |
| CN102974383A (en) | Catalytic cracking catalyst and preparation method thereof | |
| CN102847551B (en) | Cracking aid for improving lower-carbon olefin concentration | |
| CN102847552B (en) | Cracking aid for improving lower-carbon olefin concentration | |
| CN104998681B (en) | A kind of assistant for calalytic cracking for improving low-carbon olefin concentration and preparation method thereof | |
| CN105621441B (en) | A kind of phosphorous ZSM-5/Y composite molecular sieves preparation method | |
| CN101428231A (en) | Method for preparing adhesiveless ZSM-5 zeolite catalyst | |
| CN103007991B (en) | Cracking assistant for improving low-carbon olefin concentration | |
| CN103007993B (en) | Cracking assistant for improving low-carbon olefin concentration | |
| CN104998677B (en) | A kind of assistant for calalytic cracking for improving low-carbon olefin concentration and preparation method thereof | |
| CN103058209B (en) | Method for synthesizing small-grain PZSM-5 molecular sieve catalyst through two-step hydrothermal method | |
| CN103028437A (en) | Peptizing aluminum adhering agent, preparation method of peptizing aluminum adhering agent, catalytic cracking catalyst and preparation method of catalytic cracking catalyst | |
| CN102451755B (en) | Molecular sieve composition and particle containing molecular sieve active component and preparation methods thereof and catalytic cracking catalyst | |
| CN105013526B (en) | A kind of assistant for calalytic cracking for improving low-carbon olefin concentration and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |