CN106276997B - Low impurity boehmite, preparation method and preparation facilities - Google Patents
Low impurity boehmite, preparation method and preparation facilities Download PDFInfo
- Publication number
- CN106276997B CN106276997B CN201610674763.3A CN201610674763A CN106276997B CN 106276997 B CN106276997 B CN 106276997B CN 201610674763 A CN201610674763 A CN 201610674763A CN 106276997 B CN106276997 B CN 106276997B
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- Prior art keywords
- boehmite
- raw material
- slurries
- low impurity
- preparation
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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
-
- 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
-
- 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
Abstract
The invention discloses a kind of low impurity boehmite, preparation method and preparation facilities, belong to boehmite technical field.Mass percentage≤0.1% of impurity metal ion in the low impurity boehmite.This method includes that raw material boehmite is configured to slurries；Slurries are acidified, the raw material boehmite after being acidified；Setting at a temperature of be aged time of setting, obtain the raw material boehmite by ageing；Enable by the boehmite of ageing the flow velocity to set by cation exchange resin, so that the impurity metal ion in the boehmite after ageing is removed；The dry raw material boehmite for having removed impurity metal ion, obtains low impurity boehmite, wherein mass percentage≤0.1% of impurity metal ion.The device includes the first container, second container, third container, drying device.This method and device can make mass percentage≤0.1% of impurity metal ion in low impurity boehmite obtained.
Description
Technical field
The present invention relates to boehmite technical fields, more particularly to a kind of low impurity boehmite, its preparation side
Method and preparation facilities.
Background technique
Boehmite also known as monohydrate alumina, false boehmite, chemical formula AlOOHnH2O, wherein n=
0.08~0.62, nontoxic, tasteless, odorless, the white colloidal in wet product or the powder in dry product, crystal phase purity is high, peptization
Can be good, caking property is strong, has the characteristics that specific surface height, Kong Rong great, is thixotropy gel containing aquosity.
In the prior art, boehmite is during the preparation process, it will usually there are impurity metal ions, and these metals from
Sub- impurity is harmful for the application of boehmite.
Summary of the invention
In view of this, the present invention provides a kind of low impurity boehmite, preparation method and preparation facilities, the preparation side
Method and preparation facilities can effectively remove the impurity metal ion of boehmite during the preparation process, thus more suitable for reality
With.
In order to reach above-mentioned first purpose, the technical solution of low impurity boehmite provided by the invention is as follows:
Mass percentage≤0.1% of impurity metal ion in low impurity boehmite provided by the invention.
In order to reach above-mentioned second purpose, the technical side of the preparation method of low impurity boehmite provided by the invention
Case is as follows:
The preparation method of low impurity boehmite provided by the invention the following steps are included:
Raw material boehmite is configured to slurries；
The slurries of raw material boehmite are acidified, the raw material boehmite after being acidified；
By the raw material boehmite after the acidification setting at a temperature of be aged time of setting, obtain by ageing
Raw material boehmite；
The flow velocity for enabling the boehmite by ageing set is by cation exchange resin, so that by ageing
The impurity metal ion in boehmite afterwards is removed；
The dry raw material boehmite for having removed impurity metal ion, obtains the low impurity boehmite,
In the low impurity boehmite, mass percentage≤0.1% of impurity metal ion.
The preparation method of low impurity boehmite provided by the invention also can be used following technical measures and further realize.
Preferably, it is described when raw material boehmite is configured to slurries, according to Al2O3Account for raw material boehmite
The mass percentage value range of slurries is prepared for 1%~30%.
Preferably, it is described when raw material boehmite is configured to slurries, according to Al2O3Account for raw material boehmite
The mass percentage value range of slurries is prepared for 3%~15%.
Preferably, it is described when raw material boehmite is configured to slurries, according to Al2O3Account for raw material boehmite
The mass percentage value range of slurries is prepared for 5%~10%.
Preferably, when the slurries to raw material boehmite are acidified, according to Al2O3With the matter of the acid of addition
The value range for measuring ratio is 0.05~0.5.
Preferably, the acid is selected from one of sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, oxalic acid, citric acid
Or several mixture.
Preferably, the drying is spray drying.
In order to reach above-mentioned third purpose, the technical side of the preparation facilities of low impurity boehmite provided by the invention
Case is as follows:
The preparation facilities of low impurity boehmite provided by the invention include the first container, second container, third container,
Drying device,
The first container be used to accommodate the raw material boehmite that raw material boehmite is configured to after slurries, acidification,
Raw material boehmite by ageing；
The second container is for accommodating the cation exchange resin；
The third container is for accommodating the raw material boehmite for having removed impurity metal ion；
The drying device is for being dried the raw material boehmite for having removed impurity metal ion.
The preparation facilities of low impurity boehmite provided by the invention also can be used following technical measures and further realize.
Preferably, the drying device is spray-drying installation.
The low impurity being prepared using the preparation method and preparation facilities of low impurity boehmite provided by the invention
In boehmite, mass percentage≤0.1% of impurity metal ion.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the step flow chart of the preparation method of low impurity boehmite provided by the invention；
Fig. 2 is that the substance of low impurity boehmite provided by the invention during the preparation process changes schematic diagram；
Fig. 3 is the schematic diagram of the preparation facilities of low impurity boehmite provided by the invention.
Specific embodiment
The present invention in order to solve the problems existing in the prior art, provide a kind of low impurity boehmite, preparation method and
It is miscellaneous that preparation facilities, the preparation method and preparation facilities can effectively remove the metal ion of boehmite during the preparation process
Matter, thus more suitable for practical.
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to low impurity boehmite, preparation method and preparation facilities proposed according to the present invention, tool
Body embodiment, structure, feature and its effect, detailed description is as follows.In the following description, different " embodiment " or " real
Apply example " refer to be not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by appointing
What suitable form combination.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, it is specific to understand for example, A and/or B are as follows: it can simultaneously include A and B, can be with individualism A, it can also be with individualism
B can have above-mentioned three kinds of any case.
Mass percentage≤0.1% of impurity metal ion in low impurity boehmite provided by the invention.
Referring to attached drawing 1 and attached drawing 2, the preparation method of low impurity boehmite provided by the invention the following steps are included:
Step S1: raw material boehmite is configured to slurries；
Step S2: being acidified the slurries of raw material boehmite, the raw material boehmite after being acidified；
Step S3: by the raw material boehmite after acidification setting at a temperature of be aged time of setting, obtain by
The raw material boehmite of ageing；
Step S4: enabling by the boehmite of ageing the flow velocity to set by cation exchange resin, so that by
The impurity metal ion in boehmite after ageing is removed；
Step S5: the dry raw material boehmite for having removed impurity metal ion obtains low impurity boehmite,
In low impurity boehmite, mass percentage≤0.1% of impurity metal ion.
Wherein, the set temperature of ageing is room temperature, and the value range of digestion time is 2h~3h.
Wherein, when raw material boehmite being configured to slurries, according to Al2O3Account for the matter of the slurries of raw material boehmite
Amount percentage composition value range is prepared for 1%~30%.
Wherein, when raw material boehmite being configured to slurries, according to Al2O3Account for the matter of the slurries of raw material boehmite
Amount percentage composition value range is prepared for 3%~15%.
Wherein, when raw material boehmite being configured to slurries, according to Al2O3Account for the matter of the slurries of raw material boehmite
Amount percentage composition value range is prepared for 5%~10%.
Wherein, when being acidified to the slurries of raw material boehmite, according to Al2O3With taking for the mass ratio of the acid of addition
Value range is 0.05~0.5.
Wherein, acid is selected from one of sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, oxalic acid, citric acid or several
Mixture.
Wherein, dry for spray drying.
Referring to attached drawing 3, the preparation facilities of low impurity boehmite provided by the invention includes the first container, the second appearance
Device, third container, drying device.It is quasi- that the first container is used to accommodate the raw material that raw material boehmite is configured to after slurries, acidification
Boehmite, the raw material boehmite by ageing；Second container is for accommodating cation exchange resin；Third container is used for
Accommodating has removed the raw material boehmite of impurity metal ion；Drying device is used for having removed impurity metal ion
Raw material boehmite is dried.
Wherein, drying device is spray-drying installation.
The low impurity being prepared using the preparation method and preparation facilities of low impurity boehmite provided by the invention
In boehmite, mass percentage≤0.1% of impurity metal ion.
In Examples 1 to 20, in raw material boehmite, the existence form and mass percentage of impurity metal ion are such as
Under:
| Na2O% | Fe2O3% | CaO% | MgO% | TiO2% |
| 0.25 | 0.0058 | 0.17 | 0.064 | 0.105 |
Examples 1 to 20
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. a kind of preparation method of low impurity boehmite, which comprises the following steps:
(1) raw material boehmite is configured to slurries；
(2) slurries of raw material boehmite are acidified, the raw material boehmite after being acidified；
(3) by the raw material boehmite after the acidification setting at a temperature of be aged time of setting, obtain by ageing
Raw material boehmite；
(4) flow velocity for enabling the boehmite by ageing set is by cation exchange resin, so that by ageing
The impurity metal ion in boehmite afterwards is removed；
(5) the dry raw material boehmite for having removed impurity metal ion, obtains the low impurity boehmite, in institute
It states in low impurity boehmite, mass percentage≤0.1% of impurity metal ion；
Wherein:
When the raw material boehmite is configured to slurries, according to Al2O3Account for the quality of the slurries of the raw material boehmite
Percentage composition value range is 1%~30% to be prepared, and when being acidified to the slurries of the raw material boehmite, institute
State Al2O3Mass ratio with the acid of addition is 0.05~0.5；
The drying is spray drying.
2. the preparation method of low impurity boehmite according to claim 1, which is characterized in that it is described raw material is intended it is thin
When diaspore is configured to slurries, according to Al2O3The mass percentage value range for accounting for the slurries of raw material boehmite is 3%
~15% is prepared.
3. the preparation method of low impurity boehmite according to claim 2, which is characterized in that it is described raw material is intended it is thin
When diaspore is configured to slurries, according to Al2O3The mass percentage value range for accounting for the slurries of raw material boehmite is 5%
~10% is prepared.
4. the preparation method of low impurity boehmite according to claim 1, which is characterized in that the acid is selected from sulphur
One of acid, hydrochloric acid, nitric acid, phosphoric acid, formic acid, acetic acid, oxalic acid, citric acid or several mixtures.
Priority Applications (1)
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| CN201610674763.3A CN106276997B (en) | 2016-08-16 | 2016-08-16 | Low impurity boehmite, preparation method and preparation facilities |
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| CN201610674763.3A CN106276997B (en) | 2016-08-16 | 2016-08-16 | Low impurity boehmite, preparation method and preparation facilities |
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| CN106276997A CN106276997A (en) | 2017-01-04 |
| CN106276997B true CN106276997B (en) | 2019-04-23 |
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| 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 |
| CN111377468B (en) * | 2018-12-28 | 2021-08-06 | 中国石油化工股份有限公司 | Pseudo-boehmite 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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| CN1050342C (en) * | 1993-10-11 | 2000-03-15 | 中国石油化工总公司上海石油化工研究院 | Method for preparing monodisperse aluminium collosol |
| US5989515A (en) * | 1996-07-24 | 1999-11-23 | Nissan Chemical Industries, Ltd. | Process for producing an acidic aqueous alumina sol |
| CN1286725C (en) * | 2004-05-14 | 2006-11-29 | 山东铝业股份有限公司 | Method for preparing high-pruity alumina powder |
| CN103288115B (en) * | 2013-05-08 | 2016-03-16 | 中国神华能源股份有限公司 | The method of impurity metal ion in multistage resin column removing liquor alumini chloridi |
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Effective date of registration: 20230912 Address after: No.1, wukm Road, Nanding Town, Zhangdian, Zibo City, Shandong Province Patentee after: China Aluminum Shandong New Material Co.,Ltd. Address before: 100082 No. 62 North Main Street, Haidian District, Beijing, Xizhimen Patentee before: ALUMINUM CORPORATION OF CHINA Ltd. |