CN106955663A - A kind of method for activating attapulgite - Google Patents
A kind of method for activating attapulgite Download PDFInfo
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- CN106955663A CN106955663A CN201710233128.6A CN201710233128A CN106955663A CN 106955663 A CN106955663 A CN 106955663A CN 201710233128 A CN201710233128 A CN 201710233128A CN 106955663 A CN106955663 A CN 106955663A
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- attapulgite
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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Abstract
The invention belongs to technical field of sewage there is provided a kind of method for activating attapulgite, comprise the following steps：Attapulgite is purified：Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filter and dries；The activation of attapulgite：Attapulgite made from step is heated up, being used as carrier gas by inert gas makes vapor and attapulgite haptoreaction, further raise temperature, after being kept for 2~4 hours, start cooling, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.Instant invention overcomes the method high cost such as thermal activation, acidifying, contaminated wastewater seriously waits not enough.
Description
Technical field
The invention belongs to concave convex rod processing technique field, in particular it relates to a kind of method for activating attapulgite.
Background technology
Attapulgite is mineralogically under the jurisdiction of sepiolite group, is that the zeopan containing Shuifu County of a kind of layer of chain structure glues
Native mineral.Attapulgite because of its special fibre structure, excellent absorption and decoloration performance, be widely used in chemical industry, light industry,
The fields such as weaving, building materials, environmental protection and pharmacy.Under normal conditions, attapulgite is it is difficult to scattered as a kind of powder body material
Independent rhabdolith state exist, but formed certain forms crystal aggregates.Therefore in actual applications, it is necessary to recessed
Convex rod soil is purified and activation process.
In the prior art, frequently with thermal activation or acid activation technique, and mechanical agitation, ultrasonic agitation, Muffle furnace are combined
Activation process is carried out to attapulgite with microwave heating method, to increase the specific surface area of attapulgite, so as to increase its absorption
Amount, the above method can improve the moisture pick-up properties of attapulgite to a certain degree.
But activation process is carried out to attapulgite using acid solution is not environmentally in actual production and uneconomic does
Method, and the extra flushing process of many steps is so also required that, the waste water of generation is acidity, and not only etching apparatus, also pollutes
Environment.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of method for activating attapulgite, to overcome
The method high cost such as thermal activation, acidifying, contaminated wastewater seriously waits not enough.
A kind of method of the activation attapulgite provided according to the present invention, the method for the activation attapulgite is including as follows
Step：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, concave convex rod grogs is passed through in below 5mm, then by attapulgite and deionized water
Mixing, stirs, stands, filters and dries；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, is raised to after 250 DEG C, being used as carrier gas by inert gas steams water from 20 DEG C
Gas and attapulgite haptoreaction, further raise temperature, after being kept for 2~4 hours, start cooling, and stop adding vapor,
After temperature is down to room temperature, attapulgite is taken out.
Preferably, the step（1）Cross and be sized to below 3mm.
Preferably, the step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through indifferent gas
Body helium makes vapor and attapulgite haptoreaction as carrier gas, and further rise temperature keeps 2~4 to 200~350 DEG C
After hour, start cooling, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
Preferably, the step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through indifferent gas
Body helium makes vapor and attapulgite haptoreaction as carrier gas, and further rise temperature after being kept for 3 hours, is opened to 250 DEG C
Begin to cool, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
Preferably, the step（1）Middle attapulgite and the mass ratio of deionized water are 1：15~20.
Preferably, the step（1）Middle attapulgite and the mass ratio of deionized water are 1：16~18.
Preferably, the step（1）Middle attapulgite and the mass ratio of deionized water are 1：17.
Preferably, the step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, institute
The dispersant and the mass ratio of attapulgite stated are 0.01~0.05：1.
Preferably, the low molecule wax class dispersant is Tissuemat E.
Compared with prior art, the present invention has following beneficial effect：
（1）Activation process is carried out to attapulgite using high-temperature vapor, the processing procedure pickling-free discharge of wastewater improves life
The environmentally friendly efficiency of production process；
（2）Because process shortens during steam-activation treatment, production efficiency is improved, production cost is reduced；
（3）The steam-activation treatment carried out under proper temperature, can improve attapulgite's surface performance, further widen its application
Field.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1
A kind of method for activation attapulgite that the present embodiment is provided, the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filtering and be dry
It is dry；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, being used as carrier gas by inert gas makes vapor be contacted instead with attapulgite
Should, temperature is further raised, after being kept for 4 hours, starts cooling, and stop adding vapor, after temperature is down to room temperature, take out
Attapulgite.
The step（1）Cross and be sized to below 3mm.
The step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through inert gas helium
Make vapor and attapulgite haptoreaction as carrier gas, further rise temperature is to 200 DEG C, after being kept for 4 hours, starts drop
Temperature, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
The step（1）Middle attapulgite and the mass ratio of deionized water are 1：15.
The step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, described point
The mass ratio of powder and attapulgite is 0.05：1.
The low molecule wax class dispersant is Tissuemat E.
Embodiment 2
A kind of method for activation attapulgite that the present embodiment is provided, the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filtering and be dry
It is dry；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, being used as carrier gas by inert gas makes vapor be contacted instead with attapulgite
Should, temperature is further raised, after being kept for 2 hours, starts cooling, and stop adding vapor, after temperature is down to room temperature, take out
Attapulgite.
The step（1）Cross and be sized to below 3mm.
The step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through inert gas helium
Make vapor and attapulgite haptoreaction as carrier gas, further rise temperature is to 350 DEG C, after being kept for 2 hours, starts drop
Temperature, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
The step（1）Middle attapulgite and the mass ratio of deionized water are 1：20.
The step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, described point
The mass ratio of powder and attapulgite is 0.01：1.
The low molecule wax class dispersant is Tissuemat E.
Embodiment 3
A kind of method for activation attapulgite that the present embodiment is provided, the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filtering and be dry
It is dry；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, being used as carrier gas by inert gas makes vapor be contacted instead with attapulgite
Should, temperature is further raised, after being kept for 4 hours, starts cooling, and stop adding vapor, after temperature is down to room temperature, take out
Attapulgite.
The step（1）Cross and be sized to below 3mm.
The step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through inert gas helium
Make vapor and attapulgite haptoreaction as carrier gas, further rise temperature is to 250 DEG C, after being kept for 4 hours, starts drop
Temperature, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
The step（1）Middle attapulgite and the mass ratio of deionized water are 1：16.
The step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, described point
The mass ratio of powder and attapulgite is 0.05：1.
The low molecule wax class dispersant is Tissuemat E.
Embodiment 4
A kind of method for activation attapulgite that the present embodiment is provided, the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filtering and be dry
It is dry；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, being used as carrier gas by inert gas makes vapor be contacted instead with attapulgite
Should, temperature is further raised, after being kept for 3 hours, starts cooling, and stop adding vapor, after temperature is down to room temperature, take out
Attapulgite.
The step（1）Cross and be sized to below 5mm.
The step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 20 DEG C, passes through inert gas helium
Make vapor and attapulgite haptoreaction as carrier gas, further rise temperature is to 250 DEG C, after being kept for 3 hours, starts drop
Temperature, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
The step（1）Middle attapulgite and the mass ratio of deionized water are 1：18.
The step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, described point
The mass ratio of powder and attapulgite is 0.01：1.
The low molecule wax class dispersant is Tissuemat E.
Embodiment 5
A kind of method for activation attapulgite that the present embodiment is provided, the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filtering and be dry
It is dry；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, being used as carrier gas by inert gas makes vapor be contacted instead with attapulgite
Should, temperature is further raised, after being kept for 3 hours, starts cooling, and stop adding vapor, after temperature is down to room temperature, take out
Attapulgite.
The step（1）Cross and be sized to below 3mm.
The step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through inert gas helium
Make vapor and attapulgite haptoreaction as carrier gas, further rise temperature is to 250 DEG C, after being kept for 3 hours, starts drop
Temperature, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
The step（1）Middle attapulgite and the mass ratio of deionized water are 1：17.
The step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, described point
The mass ratio of powder and attapulgite is 0.04：1.
The low molecule wax class dispersant is Tissuemat E.
Embodiment 6
A kind of method for activation attapulgite that the present embodiment is provided, the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, then mixes attapulgite with deionized water, stirs, stand, filtering and be dry
It is dry；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, being used as carrier gas by inert gas makes vapor be contacted instead with attapulgite
Should, temperature is further raised, after being kept for 2 hours, starts cooling, and stop adding vapor, after temperature is down to room temperature, take out
Attapulgite.
The step（1）Cross and be sized to below 3mm.
The step（2）By step（1）Obtained attapulgite is raised to after 250 DEG C from 25 DEG C, passes through inert gas helium
Make vapor and attapulgite haptoreaction as carrier gas, further rise temperature is to 280 DEG C, after being kept for 2 hours, starts drop
Temperature, and stop adding vapor, after temperature is down to room temperature, take out attapulgite.
The step（1）Middle attapulgite and the mass ratio of deionized water are 1：18.
The step（1）It is middle attapulgite is mixed with deionized water after add low molecule wax class dispersant, described point
The mass ratio of powder and attapulgite is 0.03：1.
The low molecule wax class dispersant is Tissuemat E.
The present invention has following beneficial effect：
（1）Activation process is carried out to attapulgite using high-temperature vapor, the processing procedure pickling-free discharge of wastewater improves life
The environmentally friendly efficiency of production process；
（2）Because process shortens during steam-activation treatment, production efficiency is improved, production cost is reduced；
（3）The steam-activation treatment carried out under proper temperature, can improve attapulgite's surface performance, further widen its application
Field.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substance of the present invention.
Claims (9)
1. a kind of method for activating attapulgite, it is characterised in that the method for the activation attapulgite comprises the following steps：
（1）Attapulgite is purified：
Attapulgite is ground, sieved, concave convex rod grogs is passed through in below 5mm, then by attapulgite and deionized water
Mixing, stirs, stands, filters and dries；
（2）The activation of attapulgite：
By step（1）Obtained attapulgite heating, is raised to after 250 DEG C, being used as carrier gas by inert gas steams water from 20 DEG C
Gas and attapulgite haptoreaction, further raise temperature, after being kept for 2~4 hours, start cooling, and stop adding vapor,
After temperature is down to room temperature, attapulgite is taken out.
2. the method for activation attapulgite according to claim 1, it is characterised in that：The step（1）Be screened to 3mm with
Under.
3. the method for activation attapulgite according to claim 1, it is characterised in that：The step（2）By step（1）System
The attapulgite obtained is raised to after 250 DEG C from 25 DEG C, and being used as carrier gas by inert gas helium makes vapor be contacted with attapulgite
Reaction, further rise temperature is to 200~350 DEG C, after being kept for 2~4 hours, starts cooling, and stops adding vapor, treats temperature
Degree is down to after room temperature, takes out attapulgite.
4. the method for activation attapulgite according to claim 1, it is characterised in that：The step（2）By step（1）System
The attapulgite obtained is raised to after 250 DEG C from 25 DEG C, and being used as carrier gas by inert gas helium makes vapor be contacted with attapulgite
Reaction, further rise temperature is to 250 DEG C, after being kept for 3 hours, starts cooling, and stops adding vapor, treats that temperature is down to room
Wen Hou, takes out attapulgite.
5. the method for activation attapulgite according to claim 1, it is characterised in that：The step（1）Middle attapulgite
Mass ratio with deionized water is 1：15~20.
6. the method for activation attapulgite according to claim 1, it is characterised in that：The step（1）Middle attapulgite
Mass ratio with deionized water is 1：16~18.
7. the method for activation attapulgite according to claim 1, it is characterised in that：The step（1）Middle attapulgite
Mass ratio with deionized water is 1：17.
8. the method for activation attapulgite according to claim 1, it is characterised in that：The step（1）It is middle by concave convex rod
Soil mix with deionized water after addition low molecule wax class dispersant, described dispersant and the mass ratio of attapulgite for 0.01~
0.05：1.
9. the method for activation attapulgite according to claim 1, it is characterised in that：The low molecule wax class dispersant is
Tissuemat E.
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| CN201710233128.6A CN106955663A (en) | 2017-04-11 | 2017-04-11 | A kind of method for activating attapulgite |
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| CN201710233128.6A CN106955663A (en) | 2017-04-11 | 2017-04-11 | A kind of method for activating attapulgite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362769A (en) * | 2017-09-04 | 2017-11-21 | 南京大学 | A kind of composite and preparation method and its application in biochemical wastewater treatment |
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|---|---|---|---|---|
| CN1401420A (en) * | 2002-09-24 | 2003-03-12 | 武汉理工大学 | Hydrogen-storage palygorskite mineral material and preparing process thereof |
| CN103894143A (en) * | 2014-03-18 | 2014-07-02 | 苏州宇希新材料科技有限公司 | Method for activating attapulgite |
| CN104028213A (en) * | 2014-06-26 | 2014-09-10 | 张玉雯 | Modification method of attapulgite |
| CN104722265A (en) * | 2015-03-27 | 2015-06-24 | 陕西科技大学 | Preparation method and application of modified attapulgite adsorbent |
-
2017
- 2017-04-11 CN CN201710233128.6A patent/CN106955663A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1401420A (en) * | 2002-09-24 | 2003-03-12 | 武汉理工大学 | Hydrogen-storage palygorskite mineral material and preparing process thereof |
| CN103894143A (en) * | 2014-03-18 | 2014-07-02 | 苏州宇希新材料科技有限公司 | Method for activating attapulgite |
| CN104028213A (en) * | 2014-06-26 | 2014-09-10 | 张玉雯 | Modification method of attapulgite |
| CN104722265A (en) * | 2015-03-27 | 2015-06-24 | 陕西科技大学 | Preparation method and application of modified attapulgite adsorbent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362769A (en) * | 2017-09-04 | 2017-11-21 | 南京大学 | A kind of composite and preparation method and its application in biochemical wastewater treatment |
| CN107362769B (en) * | 2017-09-04 | 2020-10-02 | 南京乐透思环保科技有限公司 | Composite material, preparation method and application thereof in sewage biochemical treatment |
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