CN1579725A - Method for preparing Kaoline colloid - Google Patents
Method for preparing Kaoline colloid Download PDFInfo
- Publication number
- CN1579725A CN1579725A CN 03149930 CN03149930A CN1579725A CN 1579725 A CN1579725 A CN 1579725A CN 03149930 CN03149930 CN 03149930 CN 03149930 A CN03149930 A CN 03149930A CN 1579725 A CN1579725 A CN 1579725A
- Authority
- CN
- China
- Prior art keywords
- kaolin
- colloid
- preparation
- fine powder
- solid
- 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
Landscapes
- Catalysts (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a kaolin colloid preparation method which including following steps: (1)Kaolin is transferred to preparation locale by container, than is inputted into the kaolin store jar; (2)Machine crash the kaolin in the store jar until the average diameter less than 150mum; (3) The kaolin powder after crashing is transferred to the next step by screw transport; (4) Blend the necessary liquid material for kaolin colloid and the kaolin powder, and prepare the kaolin colloid. This method can reach the continuum and automation of the preparation procession, and decrease the material consume and labor cost.
Description
Technical field
The present invention relates to kaolin colloid preparation method in the petrochemical catalyst preparation process.
Background technology
Catalytic cracking is a kind of important petroleum refining process, and this process catalyst system therefor mainly is made up of matrix and active ingredient.The major function of matrix components is: the dispersed activity component, thus make active ingredient give full play to its katalysis; Make catalyzer possess certain mechanical strength, especially wear resistance; Effectively heat dispersing makes active ingredient be unlikely to rapid inactivation under hot conditions, increases the service life; Possess certain macromole cracking ability, certain effect etc. is arranged catching harmful element.Therefore, matrix partly is the important component part of cracking catalyst, and its performance, manufacturing cost all have material impact to the performance and the cost of the finished product.
The cracking catalyst that industry is at present used generally is divided into two classes, promptly so-called complete synthesis and semi-synthetic catalyzer.Semi-synthetic catalyzer is made up of matrix and active ingredient, and its active ingredient mainly is selected from REY, REHY, USY, ZSM-5 or other and selects one or more mixture in the type molecular sieve; And the matrix part is mainly selected natural clay, aluminium base binding agent, silicon sol etc. for use.Complete synthesis catalyzer is a main ingredient with raw materials such as alum liquor, water glass, sodium metaaluminate, molecular sieves mainly then.
Kaolin is a kind of in the natural clay, and it is one of important matrix components of cracking catalyst, generally accounts for the heavy % of 40-70 in the composition of catalyzer.Kaolin is a kind of mineral substance, and exploitation is come out after screening as the raw material for preparing catalyzer.Traditional catalyst preparation process be will kaolin the making beating back use acidifying, add binding agent again and continue to mix making beating, add active ingredient at last, spraying drying becomes product behind the one-tenth glue.In above step, kaolin making beating, acidifying are the important steps in the catalyst preparation process.Wherein the kaolin making beating is the making beating of intermittent type still formula, after a certain amount of chemical water of adding block kaolin is added in stirring tank, and high-speed stirring, shearing make kaolin fragmentation and chemical water be mixed into the colloid of comparison homogeneous.
Following method is taked in the preparation of kaolin colloid among the existing cracking catalyst preparation technology: (1) adds a certain amount of chemical water according to catalyst formulation in the normal pressure tank reactor; (2) kaolin of one bag of 50kg is poured in the reactor according to prescription, and violent stirring; (3) according to catalyst formulation, add a certain amount of acid (hydrochloric acid or nitric acid etc.) and continue to stir, through after above-mentioned three steps, obtain the kaolin colloid of stable in properties.Because in actual production process, kaolin is that the form with one bag of 50KG transports the user scene to.Need manually to separate bag, metering, reinforced in pulping process, operating environment is more abominable, and cost of labor and watt consumption are also higher, thereby the problem of aspects such as the tooling cost of making, environment protection, workman's labour protection is very outstanding.
The patent of relevant cracking catalyst, catalyst substrates and preparation method thereof is a lot, but these patents relate generally to aspects such as operating parameters, additive in the prescription of modifying kaolin, catalyzer and the preparation process, and relevant kaolin colloid continuous preparation process does not appear in the newspapers so far as yet.
Summary of the invention
The objective of the invention is to provide on the basis of existing technology the kaolin colloid preparation method of a kind of serialization, automatization.
Kaolin colloid preparation method provided by the invention may further comprise the steps: (1) kaolin raw material transports the on-the-spot back input of preparation kaolin storage tank to the freight container form; (2) with the kaolin Mechanical Crushing in the storage tank to median size less than 150um; (3) the kaolin fine powder after the fragmentation is delivered to next step with screw rod conveyor; (4) will prepare the required liquid material of kaolin colloid and mix, prepare kaolin colloid with the kaolin fine powder.
Compared with prior art, beneficial effect of the present invention is mainly reflected in the following aspects:
1, method provided by the present invention is intensive and efficient, can reduce raw materials consumption and cost of labor in the processes such as packing, transportation, dismounting.
2, make production process serialization, the automatization of commercial catalysts, accurate measurement, constant product quality.
3, operation site clean environment helps health of operators and environment protection.
Embodiment
Method provided by the invention comprises storage, fragmentation, conveying, four steps of humidification, through obtaining meeting the kaolin colloid of subsequent technique needs after these four steps.Method provided by the present invention can be described in detail as follows:
Store: kaolin raw material of the present invention can adopt the form of freight container to transport the scene to, and it is standby to send into on-the-spot hold-up vessel.
Broken: the former powder of kaolin that leaves field tank in generally is the mixture of kaolin fine powder and kaolin piece, and wherein the median size of kaolin piece is generally 2-5cm.Select for use disintegrating apparatus that the former powder of kaolin is carried out fragmentation, make its median size less than 150um.Can regulate according to design turnout and selected equipment as for broken time and inlet amount.
Carry: the kaolin fine powder after the fragmentation is delivered in the humidifying equipment of next step with screw rod conveyor.The feeding speed of transfer roller can be as required controlled feed rate by the transfer roller of selecting different size for use or the mode of speed control by frequency variation.
Humidification: will prepare the required liquid material of kaolin colloid and mix, prepare kaolin colloid with the kaolin fine powder.The selected equipment of humidification step can be made up of intermeshing two plate gear dishes up and down, kaolin fine powder after the fragmentation is evenly added by the upper strata gear, required liquid material as chemical water and used hydrochloric acid, nitric acid and other additive etc. of acidifying kaolin, adds in the middle of gear.Quick, the uniform mixing of kaolin fine powder and aforesaid liquid material forms kaolin colloid during the gear rotation.The solid content of kaolin colloid can be regulated between the heavy % of 10-50, improves solid content as need, can add depolymerizing agent in right amount, as POLYPROPYLENE GLYCOL etc.
The said kaolin of the present invention is the kaolin ore material that present China cracking catalyst is generally used, and its main component is the unformed body of sial.
The said disintegrating apparatus of the present invention is the general-purpose equipment that is used for grain breakage, can be the disintegrating apparatus of Raymond mill, beater grinder, centrifugal mill or other form, using the purpose of this equipment in technical process be that the former powder of kaolin is crushed to the fine powder of median size less than 150um.
The said screw rod conveyor of the present invention is the screw conveyor that is used for the conveying solid substance powder, can be the solid powder handling equipment of single screw rod conveyor, double-screw conveyor, guiding valve or other form, and its basic demand is that feeding is steady, speed control by frequency variation.
The said humidifier of the present invention is selected for use and can be realized solid powder and liquid material uniform mixing mechanical means.Described mechanical means can be made up of two portions, i.e. solid powder continuous metering system and solid-liquid mixing apparatus.The solid powder continuous metering system can adopt the decrement measurement Law at the uniform velocity reinforced in the solid-liquid mixing apparatus, and control feed rate and precision are to guarantee to obtain the kaolin colloid that solid content is even, flow is consistent.Its major parts of solid-liquid mixing apparatus can be made of two intermeshed gear sheets, makes solid powder and liquid material uniform mixing by rotating in opposite directions in humidification process.For example, the kaolin fine powder of solid powder continuous metering system after with fragmentation adds the upper strata gear of solid-liquid mixing apparatus evenly, continuously, liquid material then adds in two gears by volume pump, the mixture of kaolin fine powder and liquid material further mixes when the lower floor gear by solid-liquid mixer, obtains kaolin colloid.
The equipment that humidification step of the present invention adopted can also be that application number is the related fluid continuous mixing device of 03122847.X.This mixing tank comprises with lower member: inlet tube, spindle, mixer case, mixed rotor, transmission mechanism, discharge port, wherein, the coaxial setting of spindle, mixer case and mixed rotor; Described spindle and mixed rotor all comprise the spindle tooth or the rotor tooth of 2-20 layer different diameter, and described spindle tooth layer and rotor tooth layer radially being staggered along this mixing tank; Described spindle tooth layer and rotor tooth layer all comprise 6-40 combination tooth, and along with the progressively increase of spindle tooth layer and rotor tooth layer diameter, the angle of adjacent rotors tooth and spindle tooth reduces gradually.
The present invention is said to be to add according to the needs of cracking catalyst production formula with kaolin powder blended liquid, can be one or more the mixture in decationized Y sieve water, deionized water, hydrochloric acid, nitric acid, other additive, the character of aforesaid liquid material and kind influence flesh and blood of the present invention.
The following examples will give further instruction to method provided by the invention, but not thereby limiting the invention.
Used single screw rod conveyor is the ET-20-5 type transfer roller that Yangzhou machinery head factory is produced among the embodiment, used powder humidifier is the FY-02S type mixing equipment (containing metering system) that Zhejiang Xinle instrument factory is produced, and used disintegrating apparatus is that the model of Zhejiang Xinle instrument factory production is the screw type crusher of XY-7.
Embodiment 1
Present embodiment explanation: the implementation result that adopts method provided by the present invention.
Select kaolin original soil (Suzhou kaolin company product) 100kg for use, solid content is 77 heavy %, and desire prepares the kaolin colloid that solid content is 20 heavy %, and the hydrochloric acid add-on is final colloid PH=1.0.
Kaolin is at the uniform velocity sent into crusher XY-7 with single screw rod conveyor ET-20-5, and kaolin becomes fine powder behind the continuous crushing, and the average grain particle diameter is 138um.In shattering process, the kaolin fine powder utilizes gravity to flow into the loading hopper of FY-02S humidifier metering system.Simultaneously, open volume pump the mixed solution of hydrochloric acid and chemical water is sent into humidifier, humidifier is started working.After 1 hour, the kaolin colloid preparation finishes, and detects gained colloidal pH value, solid content and median size, the results are shown in Table 1.By the data in the table 1 as can be seen, utilize method provided by the present invention can be met the kaolin colloid (when demarcating the hydrochloric acid add-on, adopt intermittently to become the glue mode, the reaction times is prolonged as far as possible) of design objective fully.
Table 1
| The test event time (minute) | ????10 | ????20 | ????30 | ????40 | ????50 |
| PH value | ???1.00 | ???0.98 | ???1.00 | ???1.00 | ???1.00 |
| Colloid solid content (heavy %) | ???20.10 | ???20.00 | ???20.00 | ???20.02 | ???20.00 |
| Median size (um) | ???2.78 | ???2.75 | ???2.50 | ???2.51 | ???2.46 |
Embodiment 2
Present embodiment explanation: the implementation result that adopts method provided by the present invention.
Select kaolin original soil (Suzhou kaolin company product) 100kg for use, solid content is 77 heavy %, and design kaolin colloid solid content is 20 heavy %, and the hydrochloric acid add-on is final colloid PH=1.0.
Kaolin is at the uniform velocity sent into crusher XY-7 with single screw rod conveyor ET-20-5, kaolin becomes fine powder behind the continuous crushing, the average grain particle diameter is 132um, in shattering process, the kaolin fine powder utilizes gravity to flow into the loading hopper of FY-02S humidifier metering system, simultaneously, open volume pump the mixed solution of hydrochloric acid and chemical water is sent into humidifier, humidifier is started working and is obtained kaolin colloid, after 40 minutes, colloid for preparing finishes, and detects the colloidal pH value, solid content and the median size that obtain, the results are shown in Table 2.By the data in the table 2 as can be seen, utilize method provided by the present invention can be met the kaolin colloid of design objective fully.In the present embodiment, with the treatment capacity increasing of screw rod conveyor, humidifier and disintegrating apparatus, thereby shorten experimental period.
Table 2
| The test event time (minute) | ????5 | ????10 | ????20 | ????40 |
| PH value | ???1.02 | ???1.00 | ???1.00 | ???1.00 |
| Colloid solid content (heavy %) | ???20.10 | ???20.00 | ???20.00 | ???20.02 |
| Median size (um) | ???2.82 | ???2.78 | ???2.65 | ???2.67 |
Embodiment 3
Present embodiment explanation: the implementation result that adopts method provided by the present invention.
Select kaolin original soil (Suzhou kaolin company product) 100kg for use, solid content is 77 heavy %, and design kaolin colloid solid content is 40 heavy %, and the hydrochloric acid add-on is final colloid PH=1.0.
Kaolin is at the uniform velocity sent into crusher XY-7 with single screw rod conveyor ET-20-5, and kaolin becomes fine powder behind the continuous crushing, and the average grain particle diameter is 135um.In shattering process, the kaolin fine powder utilizes gravity to flow into the loading hopper of FY-02S humidifier metering system, simultaneously, open volume pump the mixed solution of hydrochloric acid and chemical water is sent into humidifier, humidifier is started working and is obtained kaolin colloid, and after 1 hour, colloid for preparing finishes, colloidal pH value, solid content and median size that detection obtains the results are shown in Table 3.
Table 3
| The test event time (minute) | ???10 | ????20 | ????30 | ????40 | ????50 |
| PH value | ??1.00 | ???0.98 | ???1.00 | ???1.00 | ???1.00 |
| Colloid solid content (heavy %) | ??39.90 | ???39.80 | ???40.00 | ???40.00 | ???39.60 |
| Median size (um) | ??2.99 | ???2.82 | ???2.90 | ???2.41 | ???2.76 |
By the data in the table 3 as can be seen, utilize method provided by the present invention can be met the kaolin colloid of design objective fully.
Comparative Examples 1
This Comparative Examples explanation: the situation of the prior art of preparation kaolin colloid.
Select kaolin original soil (Suzhou kaolin company product) 100kg for use, solid content is 77 heavy %, and design kaolin colloid solid content is 20 heavy %, and the hydrochloric acid add-on is the final colloid PH=1.0 that regulates.
In the reactor of 200L, add chemical water, kaolin is slowly added, the reinforced back making beating 30 minutes that finishes, slowly add hydrochloric acid and continuous sampling analysis slurries pH value until PH=1.0, continue making beating and obtained kaolin colloid in 45 minutes, sampling analysis: the colloid solid content is 20 heavy %, and the particle median size is 2.72um.
Comparative Examples 2
This Comparative Examples explanation: the situation of the prior art of preparation kaolin colloid.
Select kaolin original soil (Suzhou kaolin company product) 100kg for use, solid content is 77 heavy %, and design kaolin colloid solid content is 40 heavy %, and the hydrochloric acid add-on is the final colloid PH=1.0 that regulates.
In the reactor of 200L, add chemical water, kaolin is slowly added, the reinforced back making beating 30 minutes that finishes, slowly add hydrochloric acid and continuous sampling analysis slurries pH value until PH=1.0, continue making beating and obtained kaolin colloid in 45 minutes, sampling analysis: the colloid solid content is 40 heavy %, and the particle median size is 2.98um.
Claims (7)
1, a kind of kaolin colloid preparation method may further comprise the steps: (1) kaolin raw material transports the on-the-spot back input of preparation kaolin storage tank to the freight container form; (2) with the kaolin Mechanical Crushing in the storage tank to median size less than 150um; (3) the kaolin fine powder after the fragmentation is delivered to next step with screw rod conveyor; (4) will prepare the required liquid material of kaolin colloid and mix, prepare kaolin colloid with the kaolin fine powder.
2,, it is characterized in that the described kaolin Mechanical Crushing of step (2) selects for use: any in Raymond mill, beater grinder, micronizer mill or the centrifugal mill according to the method for claim 1.
3,, it is characterized in that the described screw rod conveyor of step (3) selects a kind of in single screw rod conveyor, double-screw conveyor or the guiding valve transfer roller for use according to the method for claim 1.
4,, it is characterized in that described liquid material of step (4) and kaolin fine powder mixing process are realized by solid powder continuous metering system and solid-liquid mixing apparatus two portions according to the method for claim 1.
5,, it is characterized in that described solid powder continuous metering system adopts the decrement measurement Law according to the method for claim 4.
6, according to the method for claim 4, it is characterized in that described solid-liquid mixing apparatus mainly is made of two intermeshed gear sheets, the levels gear rotates in opposite directions.
7,, it is characterized in that the described liquid material of step (4) is selected from: the mixture of one or more in decationized Y sieve water, deionized water, hydrochloric acid or the nitric acid according to the method for claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149930 CN1286627C (en) | 2003-07-31 | 2003-07-31 | Method for preparing Kaoline colloid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149930 CN1286627C (en) | 2003-07-31 | 2003-07-31 | Method for preparing Kaoline colloid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1579725A true CN1579725A (en) | 2005-02-16 |
| CN1286627C CN1286627C (en) | 2006-11-29 |
Family
ID=34579710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03149930 Expired - Lifetime CN1286627C (en) | 2003-07-31 | 2003-07-31 | Method for preparing Kaoline colloid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1286627C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434182C (en) * | 2005-12-23 | 2008-11-19 | 中国石油化工股份有限公司 | Continuous colloid mixer and its application |
-
2003
- 2003-07-31 CN CN 03149930 patent/CN1286627C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434182C (en) * | 2005-12-23 | 2008-11-19 | 中国石油化工股份有限公司 | Continuous colloid mixer and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1286627C (en) | 2006-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100434182C (en) | Continuous colloid mixer and its application | |
| CN1160436C (en) | Prepn of catalytic cracking catalyst | |
| CN211411835U (en) | Material dispersion devices is used in refractory material production | |
| CN112827418A (en) | Asphalt mixing device | |
| CN109718831B (en) | Process for preparing cracking catalyst and cracking catalyst | |
| CN1301907C (en) | Agglomerate aluminium hgdroxide grain and its production process and container and the production process of aluminium hydroxide powder | |
| CN209646634U (en) | The equipment of scale continuous production superfine pigment dispersion | |
| CN1683138A (en) | Method and device for powder composition modification | |
| CN1404910A (en) | Vertical mixing method and apparatus thereof | |
| CN1286627C (en) | Method for preparing Kaoline colloid | |
| CN202460748U (en) | Production device of ceramic slurry | |
| CN1896005A (en) | Container for producing aluminum hydroxide aggregate | |
| CN1178747C (en) | Method for preparing catalytic cracking catalyst utilizing fine powder of catalyst | |
| CN1247304C (en) | Method for preparing cracking catalyst | |
| CN215586173U (en) | Plant essential oil feed additive production is with raw materials ratio mixing arrangement | |
| CN1931971A (en) | Fuel slurry preparing process | |
| CN209519703U (en) | A kind of efficient computer dispensing equipment | |
| CN211415830U (en) | Be used for plastic granules production mixer | |
| CN209254687U (en) | A kind of integral type pelletizer | |
| CN2776654Y (en) | Composite modification device of powder | |
| CN219784568U (en) | Batching system | |
| CN220194681U (en) | Even sub-device of raw material batching dispersion | |
| CN109806906B (en) | Preparation method of catalytic cracking catalyst | |
| CN211133916U (en) | Mixing kettle with auxiliary stirring device | |
| CN112295504B (en) | Polycarboxylate water reducing agent feeder |
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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061129 |