CN108394913A - A kind of high temperature calcium-base bentonite preparation method - Google Patents
A kind of high temperature calcium-base bentonite preparation method Download PDFInfo
- Publication number
- CN108394913A CN108394913A CN201810343678.8A CN201810343678A CN108394913A CN 108394913 A CN108394913 A CN 108394913A CN 201810343678 A CN201810343678 A CN 201810343678A CN 108394913 A CN108394913 A CN 108394913A
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- CN
- China
- Prior art keywords
- original ore
- bentonite
- ore soil
- calcium
- room temperature
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
Abstract
The present invention provides a kind of high temperature calcium-base bentonite preparation methods, after raw ore bentonite is first crushed homogenizing processing, grain size sieves, and obtains original ore soil, then original ore soil is made to be warming up to 500 700 DEG C, calcine the catalyst that original ore soil quality 5% 7% is added after 1 2h, it is put into cooling chamber, room temperature is at the uniform velocity reduced to the speed of 50 100 DEG C/h, the coating material of addition original ore soil quality 1 3% while cooling, it finally carries out ripening, be dried, obtain sodium bentonite.Present invention good dispersion in aqueous medium, colloid index are high；Its soliquid thixotropy, viscosity, lubricity is good, and pH value is high；Thermal stability is good；There are higher plasticity and stronger caking property；Hot green tensile strength and dry compression are high.
Description
Technical field
The present invention relates to bentonite preparation field, specifically a kind of high temperature calcium-base bentonite preparation method.
Background technology
Bentonite ore is the mineral products of one kind of multiple purposes, and quality and application field depend primarily on wherein smectite content
With attribute type and its crystal chemistry characteristic.Thus, utilization must be different because of mine, different because of effect.Such as produce activity
Carclazyte, calcium base turn sodium base, for the drilling well slip casting of oil drilling, instead of the slurry that starch is used to spin, print and dye, with interior on building materials
Exterior coating prepares organobentonite, with bentonite synthesis 4A zeolites, production white carbon etc..
Sodium bentonite is divided according to montmorillonite the exchangeable cationic type between layer type, content：Alkaline coefficient be more than or
It is sodium bentonite equal to 1, is calcium-base bentonite less than 1.
The calcium-base bentonite everyway prepared under technology room temperature at present is not so good as natural calcium-base bentonite.Natural calcium base swelling
The expansive force of soil is bigger than artificial calcium-base bentonite；Natural calcium-base bentonite is higher than the artificial calcium-base bentonite c-axis degree of order, crystal grain compared with
Carefully, dispersibility is strong.
Invention content
The present invention in order to solve problems in the prior art, provides a kind of high temperature calcium-base bentonite preparation method, is situated between in water
Good dispersion in matter, colloid index are high；Its soliquid thixotropy, viscosity, lubricity is good, and pH values are high；Thermal stability is good；
There are higher plasticity and stronger caking property；Hot green tensile strength and dry compression are high.
The present invention includes the following steps：
1）After raw ore bentonite is crushed homogenizing processing, grain size screening obtains original ore soil；
2）So that original ore soil is warming up to 500-700 DEG C, calcines the catalyst of addition original ore soil quality 5%-7% after 1-2h, be put into cooling
Room；
3）The cooling room temperature of control is at the uniform velocity reduced to room temperature with the speed of 50-100 DEG C/h, and cooling while adds original ore soil quality
The coating material of 1-3%；
4）The product that will be cooled to room temperature carries out ripening, is dried, and obtains sodium bentonite.
It is further improved, the catalyst is calcium carbonate or calper calcium peroxide.
Advantageous effect of the present invention is：The good dispersion in aqueous medium, colloid index are high；Its soliquid thixotropy,
Viscosity, lubricity are good, and pH values are high；Thermal stability is good；There are higher plasticity and stronger caking property；Hot green tensile strength and dry
Compressive Strength is high.
Specific implementation mode
The invention will be further described below.
The present invention includes the following steps：
1）After raw ore bentonite is crushed homogenizing processing, grain size screening obtains original ore soil；
2）So that original ore soil is warming up to 500-700 DEG C, calcines the catalyst of addition original ore soil quality 5%-7% after 1-2h, be put into cooling
Room；
3）The cooling room temperature of control is at the uniform velocity reduced to room temperature with the speed of 50-100 DEG C/h, and cooling while adds original ore soil quality
The coating material of 1-3%；
4）The product that will be cooled to room temperature carries out ripening, is dried, and obtains sodium bentonite.
It is further improved, the catalyst is calcium carbonate or calper calcium peroxide.
There are many concrete application approach of the present invention, the above is only a preferred embodiment of the present invention, it is noted that for
For those skilled in the art, without departing from the principle of the present invention, it can also make several improvements, this
A little improve also should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of high temperature calcium-base bentonite preparation method, it is characterised in that include the following steps：
1）After raw ore bentonite is crushed homogenizing processing, grain size screening obtains original ore soil；
2）So that original ore soil is warming up to 500-700 DEG C, calcines the catalyst of addition original ore soil quality 5%-7% after 1-2h, be put into cooling
Room；
3）The cooling room temperature of control is at the uniform velocity reduced to room temperature with the speed of 50-100 DEG C/h, and cooling while adds original ore soil quality
The coating material of 1-3%；
4）The product that will be cooled to room temperature carries out ripening, is dried, and obtains sodium bentonite.
2. high temperature calcium-base bentonite preparation method according to claim 1, it is characterised in that：The catalyst is carbonic acid
Calcium or calper calcium peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343678.8A CN108394913A (en) | 2018-04-17 | 2018-04-17 | A kind of high temperature calcium-base bentonite preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343678.8A CN108394913A (en) | 2018-04-17 | 2018-04-17 | A kind of high temperature calcium-base bentonite preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108394913A true CN108394913A (en) | 2018-08-14 |
Family
ID=63100082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810343678.8A Pending CN108394913A (en) | 2018-04-17 | 2018-04-17 | A kind of high temperature calcium-base bentonite preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108394913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980755A (en) * | 2019-12-31 | 2020-04-10 | 湖北三鼎科技有限公司 | Preparation method of high-expansion-times sodium bentonite |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803294A (en) * | 2005-11-10 | 2006-07-19 | 广西大学 | Alkaline calcium bentonite and its preparation method |
| CN101676204A (en) * | 2008-09-19 | 2010-03-24 | 于网林 | Calcium group activation technology |
| CN105293511A (en) * | 2015-11-30 | 2016-02-03 | 浙江丰虹新材料股份有限公司 | Easy-to-disperse sodium bentonite and preparation method thereof |
| CN107585772A (en) * | 2017-09-05 | 2018-01-16 | 宣化燕北矿业有限责任公司 | A kind of preparation method of modified sodium bentonite |
-
2018
- 2018-04-17 CN CN201810343678.8A patent/CN108394913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803294A (en) * | 2005-11-10 | 2006-07-19 | 广西大学 | Alkaline calcium bentonite and its preparation method |
| CN101676204A (en) * | 2008-09-19 | 2010-03-24 | 于网林 | Calcium group activation technology |
| CN105293511A (en) * | 2015-11-30 | 2016-02-03 | 浙江丰虹新材料股份有限公司 | Easy-to-disperse sodium bentonite and preparation method thereof |
| CN107585772A (en) * | 2017-09-05 | 2018-01-16 | 宣化燕北矿业有限责任公司 | A kind of preparation method of modified sodium bentonite |
Non-Patent Citations (1)
| Title |
|---|
| 高振洲 等: "膨润土高温活化改性研究", 《科学技术与工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980755A (en) * | 2019-12-31 | 2020-04-10 | 湖北三鼎科技有限公司 | Preparation method of high-expansion-times sodium bentonite |
| CN110980755B (en) * | 2019-12-31 | 2023-04-21 | 湖北三鼎科技有限公司 | Preparation method of high-expansion sodium-base bentonite |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180814 |
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| RJ01 | Rejection of invention patent application after publication |