CN106276997A - Low impurity boehmite, its preparation method and preparation facilities - Google Patents
Low impurity boehmite, its preparation method and preparation facilities Download PDFInfo
- Publication number
- CN106276997A CN106276997A CN201610674763.3A CN201610674763A CN106276997A CN 106276997 A CN106276997 A CN 106276997A CN 201610674763 A CN201610674763 A CN 201610674763A CN 106276997 A CN106276997 A CN 106276997A
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- boehmite
- raw material
- low impurity
- serosity
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
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- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention discloses a kind of low impurity boehmite, its preparation method and preparation facilities, belong to boehmite technical field.Weight/mass percentage composition≤0.1% of impurity metal ion in this low impurity boehmite.The method includes raw material boehmite is configured to serosity；Serosity is acidified, the raw material boehmite after being acidified；At a temperature of setting, it is aged the time of setting, obtains the raw material boehmite through ageing；Order passes through cation exchange resin through the boehmite of ageing with the flow velocity set so that the impurity metal ion in boehmite after ageing is removed；It is dried the raw material boehmite having removed impurity metal ion, obtains low impurity boehmite, wherein, weight/mass percentage composition≤0.1% of impurity metal ion.This device includes the first container, second container, the 3rd container, drying device.The method and device can make weight/mass percentage composition≤0.1% of impurity metal ion in the low impurity boehmite prepared.
Description
Technical field
The present invention relates to boehmite technical field, particularly relate to a kind of low impurity boehmite, its preparation side
Method and preparation facilities.
Background technology
Boehmite, has another name called monohydrate alumina, false boehmite, chemical formula AlOOH nH2O, wherein, n=
0.08～0.62, nontoxic, tasteless, odorless, the white colloidal in wet product or the powder in dry product, crystalline phase purity is high, peptization
Can be good, caking property is strong, has the features such as specific surface is high, pore volume is big, and it is thixotropy gel containing aquosity.
In prior art, boehmite is in preparation process, it will usually leave impurity metal ion, and these metals from
Sub-impurity, for the application of boehmite, is harmful.
Summary of the invention
In view of this, the present invention provides a kind of low impurity boehmite, its preparation method and preparation facilities, this preparation side
Method and preparation facilities can remove boehmite impurity metal ion in preparation process, effectively thus more suitable for reality
With.
In order to reach above-mentioned first purpose, the technical scheme of the low impurity boehmite that the present invention provides is as follows:
Weight/mass percentage composition≤0.1% of impurity metal ion in the low impurity boehmite that the present invention provides.
In order to reach above-mentioned second purpose, the technical side of the preparation method of the low impurity boehmite that the present invention provides
Case is as follows:
The preparation method of the low impurity boehmite that the present invention provides comprises the following steps:
Raw material boehmite is configured to serosity；
The serosity of raw material boehmite is acidified, the raw material boehmite after being acidified；
Raw material boehmite after described acidifying is aged at a temperature of setting the time of setting, obtains through ageing
Raw material boehmite；
The described boehmite through ageing is made to pass through cation exchange resin with the flow velocity set so that through ageing
After boehmite in impurity metal ion be removed；
It is dried the raw material boehmite having removed impurity metal ion, obtains described low impurity boehmite,
In described low impurity boehmite, weight/mass percentage composition≤0.1% of impurity metal ion.
The preparation method of the low impurity boehmite that the present invention provides also can be applied to the following technical measures to achieve further.
As preferably, described time raw material boehmite is configured to serosity, according to Al2O3Account for raw material boehmite
The weight/mass percentage composition span of serosity is 1%～30% to prepare.
As preferably, described time raw material boehmite is configured to serosity, according to Al2O3Account for raw material boehmite
The weight/mass percentage composition span of serosity is 3%～15% to prepare.
As preferably, described time raw material boehmite is configured to serosity, according to Al2O3Account for raw material boehmite
The weight/mass percentage composition span of serosity is 5%～10% to prepare.
As preferably, when the described serosity to raw material boehmite is acidified, according to Al2O3Matter with the acid added
The span of amount ratio is 0.05～0.5.
As preferably, described acid is selected from the one in sulphuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, oxalic acid, citric acid
Or several mixture.
As preferably, described it is dried as being spray-dried.
In order to reach above-mentioned 3rd purpose, the technical side of the preparation facilities of the low impurity boehmite that the present invention provides
Case is as follows:
The preparation facilities of low impurity boehmite that the present invention provides include the first container, second container, the 3rd container,
Drying device,
Described first container for house raw material boehmite be configured to serosity, acidifying after raw material boehmite,
Raw material boehmite through ageing；
Described second container is used for housing described cation exchange resin；
Described 3rd container is for the accommodating raw material boehmite having removed impurity metal ion；
Described drying device is for being dried the described raw material boehmite having removed impurity metal ion.
The preparation facilities of the low impurity boehmite that the present invention provides also can be applied to the following technical measures to achieve further.
As preferably, described drying device is spray-drying installation.
The low impurity that the preparation method of the low impurity boehmite that the application present invention provides and preparation facilities prepare
In boehmite, weight/mass percentage composition≤0.1% of impurity metal ion.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical parts.In the accompanying drawings:
The flow chart of steps of the preparation method of the low impurity boehmite that Fig. 1 provides for the present invention；
The low impurity boehmite that Fig. 2 provides for present invention material change schematic diagram in preparation process；
The schematic diagram of the preparation facilities of the low impurity boehmite that Fig. 3 provides for the present invention.
Detailed description of the invention
The present invention solves the problem that prior art exists, it is provided that a kind of low impurity boehmite, its preparation method and
It is miscellaneous that preparation facilities, this preparation method and preparation facilities can remove boehmite metal ion in preparation process effectively
Matter, thus more suitable for practicality.
By further illustrating the technological means and effect that the present invention taked by reaching predetermined goal of the invention, below in conjunction with
Accompanying drawing and preferred embodiment, to the low impurity boehmite, its preparation method and the preparation facilities that propose according to the present invention, its tool
Body embodiment, structure, feature and effect thereof, after describing in detail such as.In the following description, different " embodiments " or " real
Execute example " refer to be not necessarily same embodiment.Additionally, special characteristic, structure or feature in one or more embodiment can be by appointing
What suitable form combination.
The terms "and/or", a kind of incidence relation describing affiliated partner, can there are three kinds of passes in expression
System, such as, A and/or B, concrete is interpreted as: can include A and B simultaneously, can be with individualism A, it is also possible to individualism
B, it is possible to possess above-mentioned three kinds of any one situations.
Weight/mass percentage composition≤0.1% of impurity metal ion in the low impurity boehmite that the present invention provides.
Seeing accompanying drawing 1 and accompanying drawing 2, the preparation method of the low impurity boehmite that the present invention provides comprises the following steps:
Step S1: raw material boehmite is configured to serosity；
Step S2: the serosity of raw material boehmite is acidified, the raw material boehmite after being acidified；
Step S3: the raw material boehmite after acidifying is aged time of setting at a temperature of setting, obtain through
The raw material boehmite of ageing；
Step S4: order passes through cation exchange resin through the boehmite of ageing with the flow velocity set so that pass through
The impurity metal ion in boehmite after ageing is removed；
Step S5: be dried the raw material boehmite having removed impurity metal ion, obtain low impurity boehmite,
In low impurity boehmite, weight/mass percentage composition≤0.1% of impurity metal ion.
Wherein, the design temperature of ageing is room temperature, and the span of digestion time is 2h～3h.
Wherein, when raw material boehmite is configured to serosity, according to Al2O3Account for the matter of the serosity of raw material boehmite
Amount percentage composition span is 1%～30% to prepare.
Wherein, when raw material boehmite is configured to serosity, according to Al2O3Account for the matter of the serosity of raw material boehmite
Amount percentage composition span is 3%～15% to prepare.
Wherein, when raw material boehmite is configured to serosity, according to Al2O3Account for the matter of the serosity of raw material boehmite
Amount percentage composition span is 5%～10% to prepare.
Wherein, when the serosity of raw material boehmite is acidified, according to Al2O3Taking of the mass ratio of the acid with addition
Value scope is 0.05～0.5.
Wherein, one or several in sulphuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, oxalic acid, the citric acid of acid
Mixture.
Wherein, it is dried as being spray-dried.
Seeing accompanying drawing 3, the preparation facilities of the low impurity boehmite that the present invention provides includes the first container, the second appearance
Device, the 3rd container, drying device.First container is intended for housing the raw material after raw material boehmite is configured to serosity, acidifying
Boehmite, the raw material boehmite of process ageing；Second container is used for housing cation exchange resin；3rd container is used for
The accommodating raw material boehmite having removed impurity metal ion；Drying device is for having removed impurity metal ion
Raw material boehmite is dried.
Wherein, drying device is spray-drying installation.
The low impurity that the preparation method of the low impurity boehmite that the application present invention provides and preparation facilities prepare
In boehmite, weight/mass percentage composition≤0.1% of impurity metal ion.
In embodiment 1～20, in raw material boehmite, the existence form of impurity metal ion and weight/mass percentage composition are such as
Under:
| Na2O% | Fe2O3% | CaO% | MgO% | TiO2% |
| 0.25 | 0.0058 | 0.17 | 0.064 | 0.105 |
Embodiment 1～20
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. one kind low impurity boehmite, it is characterised in that the matter of impurity metal ion in described low impurity boehmite
Amount percentage composition≤0.1%.
2. the preparation method of the low impurity boehmite described in claim 1, it is characterised in that comprise the following steps:
Raw material boehmite is configured to serosity；
The serosity of raw material boehmite is acidified, the raw material boehmite after being acidified；
Raw material boehmite after described acidifying is aged at a temperature of setting the time of setting, obtains former through be aged
Material boehmite；
The described boehmite through ageing is made to pass through cation exchange resin with the flow velocity set so that after ageing
Impurity metal ion in boehmite is removed；
It is dried the raw material boehmite having removed impurity metal ion, obtains described low impurity boehmite, described
In low impurity boehmite, weight/mass percentage composition≤0.1% of impurity metal ion.
The preparation method of low impurity boehmite the most according to claim 2, it is characterised in that
Described time raw material boehmite is configured to serosity, according to Al2O3Account for the percent mass of the serosity of raw material boehmite
Content span is 1%～30% to prepare.
The preparation method of low impurity boehmite the most according to claim 3, it is characterised in that described raw material is intended thin
When diaspore is configured to serosity, according to Al2O3The weight/mass percentage composition span of the serosity accounting for raw material boehmite is 3%
～15% prepare.
The preparation method of low impurity boehmite the most according to claim 4, it is characterised in that described raw material is intended thin
When diaspore is configured to serosity, according to Al2O3The weight/mass percentage composition span of the serosity accounting for raw material boehmite is 5%
～10% prepare.
The preparation method of low impurity boehmite the most according to claim 2, it is characterised in that described thin to raw material plan
When the serosity of diaspore is acidified, according to Al2O3It is 0.05～0.5 with the span of the mass ratio of the acid added.
The preparation method of low impurity boehmite the most according to claim 2, it is characterised in that described acid is selected from sulfur
One or several mixture in acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, oxalic acid, citric acid.
The preparation method of low impurity boehmite the most according to claim 2, it is characterised in that described be dried into spraying
It is dried.
9. the preparation facilities of the low impurity boehmite described in claim 1, it is characterised in that include the first container, second
Container, the 3rd container, drying device,
Described first container is for housing the raw material boehmite after raw material boehmite is configured to serosity, acidifying, process
The raw material boehmite of ageing；
Described second container is used for housing described cation exchange resin；
Described 3rd container is for the accommodating raw material boehmite having removed impurity metal ion；
Described drying device is for being dried the described raw material boehmite having removed impurity metal ion.
The preparation facilities of low impurity boehmite the most according to claim 9, it is characterised in that described drying device
For spray-drying installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674763.3A CN106276997B (en) | 2016-08-16 | 2016-08-16 | Low impurity boehmite, preparation method and preparation facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610674763.3A CN106276997B (en) | 2016-08-16 | 2016-08-16 | Low impurity boehmite, preparation method and preparation facilities |
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| Publication Number | Publication Date |
|---|---|
| CN106276997A true CN106276997A (en) | 2017-01-04 |
| CN106276997B CN106276997B (en) | 2019-04-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377468A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Pseudo-boehmite and preparation method thereof |
| CN111375418A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Hydrogenation catalyst and preparation method thereof |
| CN111377467A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Alumina and preparation method thereof |
| CN113045294A (en) * | 2019-12-27 | 2021-06-29 | 中国石油化工股份有限公司 | High-silicon pseudo-boehmite, preparation method and application thereof |
| CN113042021A (en) * | 2019-12-27 | 2021-06-29 | 中国石油化工股份有限公司 | Fluidized bed hydrogenation catalyst and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111377468A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Pseudo-boehmite and preparation method thereof |
| CN111375418A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Hydrogenation catalyst and preparation method thereof |
| CN111377467A (en) * | 2018-12-28 | 2020-07-07 | 中国石油化工股份有限公司 | Alumina and preparation method thereof |
| CN111375418B (en) * | 2018-12-28 | 2022-09-09 | 中国石油化工股份有限公司 | Hydrogenation catalyst and preparation method thereof |
| CN113045294A (en) * | 2019-12-27 | 2021-06-29 | 中国石油化工股份有限公司 | High-silicon pseudo-boehmite, preparation method and application thereof |
| CN113042021A (en) * | 2019-12-27 | 2021-06-29 | 中国石油化工股份有限公司 | Fluidized bed hydrogenation catalyst and preparation method thereof |
| CN113045294B (en) * | 2019-12-27 | 2022-08-12 | 中国石油化工股份有限公司 | High-silicon pseudo-boehmite, preparation method and application thereof |
| CN113042021B (en) * | 2019-12-27 | 2023-05-26 | 中国石油化工股份有限公司 | Ebullated bed hydrogenation catalyst and preparation method thereof |
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| Publication number | Publication date |
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| CN106276997B (en) | 2019-04-23 |
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