CN107585772A - A kind of preparation method of modified sodium bentonite - Google Patents
A kind of preparation method of modified sodium bentonite Download PDFInfo
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- CN107585772A CN107585772A CN201710790950.2A CN201710790950A CN107585772A CN 107585772 A CN107585772 A CN 107585772A CN 201710790950 A CN201710790950 A CN 201710790950A CN 107585772 A CN107585772 A CN 107585772A
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- bentonite
- modified
- sodium
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- sodium bentonite
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Abstract
The present invention relates to bentonite ore deep process technology field, specifically discloses a kind of preparation method of modified sodium bentonite.The preparation method, comprises the following steps：Raw ore bentonite is carried out after crushing homogenizing processing, particle diameter screening, obtains original ore soil；The original ore soil and sodium agent, modified additive are subjected to mixing treatment, obtain mixed material；Add water in the mixed material, after stir process, carry out banking up ripening, drying process, obtain being modified sodium bentonite.The preparation method of modified sodium bentonite provided by the present invention, technique is simple, easy to operate, safety and environmental protection, resulting modification sodium bentonite, and viscosity is high, and filter loss is low, and expansion index is high.
Description
Technical field
The present invention relates to bentonite ore deep process technology field, more particularly to a kind of preparation side of modified sodium bentonite
Method.
Background technology
Xuanhua locality bentonite Resource management is big, and production history is permanent, for many years the swelling native produce limitation in Xuanhua
In calcium base native produce and apply in metallurgical briquetting with, the low-quality sodium base product of small mold casting and large shield, pile foundation（It is and near
Just occur within several years）Engineering low viscosity（Mud yield）Extensive product.
Because local bentonite ore type largely belongs to calcium fundamental mode, calcium-sodium form, calcium-magnesium types, three of the above ore deposit type is in theory
Say, modified artificial natridization is difficult to be modified viscosity height, the sodium base soil raw material of good dispersion, also can not produce GB/T5005-
The drilling fluid swelling native produce of 2010 standards requirement.
The content of the invention
For the viscosity of modified sodium bentonite existing for prior art is low etc., problem, the present invention provide a kind of modified sodium base
Preparation method for bentonite.
To achieve the above object of the invention, the embodiment of the present invention employs following technical scheme：
A kind of preparation method of modified sodium bentonite, including at least following steps：
（1）Raw ore bentonite is carried out after crushing homogenizing processing, particle diameter screening, obtains original ore soil；
（2）The original ore soil and sodium agent, modified additive are subjected to mixing treatment, obtain mixed material；
（3）Add water in the mixed material, after stir process, carry out banking up ripening, drying process, be modified
Sodium bentonite.
Relative to prior art, the preparation method of modified sodium bentonite provided by the invention, technique is simple, operation side
Just, safety and environmental protection, resulting modification sodium bentonite, viscosity is high, and filter loss is low, and expansion index is high.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The embodiment of the present invention provides a kind of preparation method of modified sodium bentonite, the preparation method, including at least as follows
Step：
（1）Raw ore bentonite is carried out after crushing homogenizing processing, particle diameter screening, obtains original ore soil；
（2）The original ore soil and sodium agent, modified additive are subjected to mixing treatment, obtain mixed material；
（3）Add water in the mixed material, after stir process, carry out banking up ripening, drying process, be modified
Sodium bentonite.
Preferably, raw ore bentonite be calcium fundamental mode bentonite, calcium-sodium form bentonite, one kind in calcium-magnesium types bentonite or
Two kinds, the raw ore bentonite of three of the above type, high viscosity can be obtained by the stirring in the present invention-method process modification of banking up
Modification sodium bentonite.
Preferably, original ore soil particle diameter≤5cm, in order that original ore soil preferably with sodium agent and modified additive fully mix
Close.
Preferably, the addition of sodium agent be original ore soil quality 4-6%, in order that original ore soil can by sufficient sodium,
Obtain being modified sodium bentonite.
Preferably, sodium agent is one or both of sodium carbonate, sodium fluoride, when calcium-sodium form raw ore bentonite and inclined calcium
During type, from the mixed sodium agent of sodium carbonate, sodium fluoride, sodium effect is improved.
Preferably, the addition of modified additive is the 0.1-2% of original ore soil quality, slightly increases a certain amount of high price in system
Ion, to strengthen the network strength of dispersion liquid, reach and put forward highly viscous purpose.
Preferably, modified additive is one or both of divalent ion modified additive, trivalent ion modified additive.
It is further preferred that divalent ion modified additive is magnesium salts；Trivalent ion modified additive is aluminium salt class.
Preferably, the addition of water is the 35-45% of original ore soil quality, in modifying process, bentonitic calcium, magnesium plasma
It is to enter line replacement in aqueous medium to react with additional sodium ion, very little, reaction condition is poor for moisture content, is unfavorable for natridization reaction
Carry out.
Preferably, ripening time >=3 month are banked up, it is abundant to ensure that reaction is carried out.
It is further preferred that the ripening time is banked up as 4-6 months.
Preferably, drying process is dryness in the sun.
The preparation method of modified sodium bentonite provided in an embodiment of the present invention, technique is simple, easy to operate, safety collar
Protect, resulting modification sodium bentonite, viscosity is high, and filter loss is low, and expansion index is high.
In order to better illustrate the preparation method of modified sodium bentonite provided in an embodiment of the present invention, below by implementation
Example is further to be illustrated.
Embodiment 1
The preparation method of modified sodium bentonite, comprises the following steps：
（1）The inclined calcium type raw ore bentonite of calcium-sodium is carried out after crushing homogenizing processing, particle diameter screening, obtains calcium fundamental mode original ore soil；
（2）It is respectively the sodium carbonate, sodium fluoride, magnesium of original ore soil quality 3%, 3%, 0.1% by the calcium fundamental mode original ore soil and addition
Salt divalent ion modified additive carries out mixing treatment, obtains mixed material；
（3）The water that addition is original ore soil quality 35%-45% is added in the mixed material, after stir process, carries out heap
Ageing more than 3 months is put, dryness in the sun, obtains being modified sodium bentonite.
Embodiment 2
The preparation method of modified sodium bentonite, comprises the following steps：
（1）Calcium-sodium form raw ore bentonite is carried out after crushing homogenizing processing, particle diameter screening, obtains calcium-sodium form original ore soil；
（2）By the calcium-sodium form original ore soil and addition be respectively the sodium carbonate of original ore soil quality 4%, 1%, magnesium salts divalence from
Sub- modified additive carries out mixing treatment, obtains mixed material；
（3）The water that addition is original ore soil quality 35%-45% is added in the mixed material, after stir process, carries out heap
Ageing more than 3 months is put, dryness in the sun, obtains being modified sodium bentonite.
Embodiment 3
The preparation method of modified sodium bentonite, comprises the following steps：
（1）Calcium-magnesium types raw ore bentonite is carried out after crushing homogenizing processing, particle diameter screening, obtains calcium-magnesium types original ore soil；
（2）It is respectively the sodium carbonate of original ore soil quality 5%, 1.5%, magnesium salts divalence by the calcium-magnesium types original ore soil and addition
Ion modification auxiliary agent carries out mixing treatment, obtains mixed material；
（3）The water that addition is original ore soil quality 35%-45% is added in the mixed material, after stir process, carries out heap
Ageing more than 3 months is put, dryness in the sun, obtains being modified sodium bentonite.
Embodiment 4
The preparation method of modified sodium bentonite, comprises the following steps：
（1）Calcium-sodium form and calcium-magnesium types raw ore bentonite are carried out after crushing homogenizing processing, particle diameter screening, obtain calcium-sodium form with
Calcium-magnesium types mixing original ore soil；
（2）Calcium-the sodium form is mixed with calcium-magnesium types original ore soil and addition be respectively mix original ore soil quality 3%, 2%, 1%,
1% sodium carbonate, sodium fluoride, magnesium salts ion modification auxiliary agent, aluminium salt class ion modification auxiliary agent carry out mixing treatment, are mixed
Material；
（3）Water of the addition for mixing original ore soil quality 35%-45% is added in the mixed material, after stir process, entered
Row banks up ageing more than 3 months, dryness in the sun, obtains being modified sodium bentonite.
In order to better illustrate technical scheme, done further below by comparative example and embodiments of the invention into one
The contrast of step, wherein, comparative example 1-3 is respectively with calcium-sodium form（Inclined calcium type）, calcium-sodium form, calcium-magnesium types raw ore bentonite for original
Material plus modifying agent sodium carbonate, obtain being modified sodium bentonite, related changes by the conventional sodium modification technique for stirring or extruding
Property sodium bentonite index contrast it is as shown in table 1.
Table 1
It can be obtained by above-mentioned data, resulting modification sodium bentonite, have viscosity high, filter loss is low, the high spy of expansion index
Property.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. preparation method of modified sodium bentonite, it is characterised in that：Including at least following steps：（1）Raw ore bentonite is carried out after crushing homogenizing processing, particle diameter screening, obtains original ore soil；（2）The original ore soil and sodium agent, modified additive are subjected to mixing treatment, obtain mixed material；（3）Add water in the mixed material, after stir process, carry out banking up ripening, drying process, be modified Sodium bentonite.
- 2. the preparation method of modified sodium bentonite as claimed in claim 1, it is characterised in that：The raw ore bentonite is calcium One or both of fundamental mode bentonite, calcium-sodium form bentonite, calcium-magnesium types bentonite.
- 3. the preparation method of modified sodium bentonite as claimed in claim 1, it is characterised in that：The particle diameter of the original ore soil≤ 5cm。
- 4. the preparation method of modified sodium bentonite as claimed in claim 1, it is characterised in that：The addition of the sodium agent For the 4-6% of original ore soil quality.
- 5. the preparation method of the modification sodium bentonite as described in claim 1 or 4, it is characterised in that：The sodium agent is carbon At least one of sour sodium, sodium fluoride.
- 6. the preparation method of modified sodium bentonite as claimed in claim 1, it is characterised in that：The addition of the modified additive Measure as the 0.1-2% of original ore soil quality.
- 7. the preparation method of the modification sodium bentonite as described in claim 1 or 6, it is characterised in that：The modified additive is At least one of divalent ion modified additive, trivalent ion modified additive.
- 8. the preparation method of modified sodium bentonite as claimed in claim 7, it is characterised in that：The divalent ion is modified and helped Agent includes magnesium salts；And/orThe trivalent ion modified additive includes aluminium salt.
- 9. the preparation method of modified sodium bentonite as claimed in claim 1, it is characterised in that：The addition of the water is original The 35-45% of ore deposit soil property amount.
- 10. the preparation method of modified sodium bentonite as claimed in claim 1, it is characterised in that：It is described to bank up ripening Time >=3 month；And/orThe drying process is dryness in the sun.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394913A (en) * | 2018-04-17 | 2018-08-14 | 句容康泰膨润土有限公司 | A kind of high temperature calcium-base bentonite preparation method |
| CN108557833A (en) * | 2018-04-17 | 2018-09-21 | 句容康泰膨润土有限公司 | A kind of high temperature sodium base bentonite preparation method |
| CN111410942A (en) * | 2020-05-09 | 2020-07-14 | 宣化燕北矿业有限责任公司 | Preparation method of seawater drilling composite soil |
| CN113621796A (en) * | 2021-08-25 | 2021-11-09 | 辽宁鑫浩膨润土有限责任公司 | Modified bentonite for metallurgical pellets and production process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394913A (en) * | 2018-04-17 | 2018-08-14 | 句容康泰膨润土有限公司 | A kind of high temperature calcium-base bentonite preparation method |
| CN108557833A (en) * | 2018-04-17 | 2018-09-21 | 句容康泰膨润土有限公司 | A kind of high temperature sodium base bentonite preparation method |
| CN111410942A (en) * | 2020-05-09 | 2020-07-14 | 宣化燕北矿业有限责任公司 | Preparation method of seawater drilling composite soil |
| CN111410942B (en) * | 2020-05-09 | 2021-04-13 | 宣化燕北矿业有限责任公司 | Preparation method of seawater drilling composite soil |
| CN113621796A (en) * | 2021-08-25 | 2021-11-09 | 辽宁鑫浩膨润土有限责任公司 | Modified bentonite for metallurgical pellets and production process thereof |
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