CN109248657A - A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property - Google Patents
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property Download PDFInfo
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- CN109248657A CN109248657A CN201811121582.3A CN201811121582A CN109248657A CN 109248657 A CN109248657 A CN 109248657A CN 201811121582 A CN201811121582 A CN 201811121582A CN 109248657 A CN109248657 A CN 109248657A
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- Prior art keywords
- bentonite
- bentonitic
- absorption property
- processing method
- raw ore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0288—Halides of compounds other than those provided for in B01J20/046
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
Abstract
The invention discloses a kind of bentonite raw ores to prepare the bentonitic processing method of high absorption property, smashed bentonite had both been driven away to the water in structure channel at 300 DEG C of maturing temperature, structural framework and crimping construction are not destroyed again, reduce moisture film to the absorption resistance of organic substance, improve absorption property, become the hydrogen-based bentonite with hydrogen ion for main exchangeable cations using acidleach processing bentonite, removal also with acid to bentonitic dissolution and to impurity simultaneously, improve bentonitic whiteness and purity, the ferric trichloride of addition, hydrogen ion carries out ion exchange between bentonite bed, aniline is added dropwise again, iron ion causes aniline and polymerize in bentonitic interlamination region, further increase bentonitic interlamellar spacing, it is very significantly improved bentonite hydrophobic performance and separating effect, bentonite processing method provided by the invention Simply, at low cost, also have the characteristics that absorption property is high, hydrophobic performance is good and good purification, application prospect is good, is worthy to be popularized.
Description
Technical field
The present invention relates to bentonite processing technique fields more particularly to a kind of bentonite raw ore to prepare high absorption property swelling
The processing method of soil.
Background technique
Bentonite is one kind with montmorillonite 2:1 type layered clay mineral as main component, has biggish surface area, because
This is with stronger adsorption capacity and ion-exchange capacity, in recent years, has been widely used in a huge sum of money in industrial wastewater in recent years
The adsorption treatment of category, organic pollutant and dyestuff etc., some successful applications are also achieved in terms of the improvement of soil, also can be used
Physical isolation material etc. when making the substrate of landfill yard, handling poisonous and harmful solid waste.But in natural montmorillonite, silicon oxygen
Structure has the hydrolysis of extremely strong hydrophily and a large amount of exchangeable cations of interlayer, its surface is made usually to there is one layer of thin water
Film, and cannot effectively adsorb hydrophobic organic pollutant.Therefore, how to improve the absorption property of natural montmorillonite is bentonite
The hot issue of manufacture field research.
Summary of the invention
The object of the invention is to remedy the disadvantages of known techniques, provides a kind of bentonite raw ore and prepares high absorption property
Bentonitic processing method.
The present invention is achieved by the following technical solutions:
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, comprising the following specific steps
(1) bentonite raw ore is packed into feed bin, then raw ore is transported in hammer mill with rubber conveyer and is crushed,
Reuse rubber conveyer by broken ore be transported to rolling cage screen, will screen object be divided into powder, particle, big
Three ranks of grain, the powder and particle filtered out are collected the bulky grain filtered out for use by rubber conveyer and utilize glue
Band conveyer is back to crusher and carries out second-time breakage, continues to screen and repeat, and requires until all meeting screening；
(2) the bentonite powder being collected into step (1) is added in planetary ball mill and is ground, cross 200 meshes, then will
The bentonite of 200 meshes, which is put into Muffle furnace, rises to 300 DEG C with 30 DEG C/min speed, calcines 2h, comes out of the stove after keeping the temperature a period of time
It is cooling, it is ground up, sieved；
(3) bentonite after roasting in step (2) is added in the mixed acid solution of sulfuric acid and hydrochloric acid, in bath temperature 88-93
A period of time, filtering are stirred to react at DEG C, product is washed with distilled water to filtrate and is in neutrality, then dries at 105 DEG C, natural
It is crushed after being cooled to room temperature stand-by；
(4) liquor ferri trichloridi is added in the bentonite after acidification, is stirred after reacting a period of time and is centrifuged, is washed,
Then deionized water, chloroform and dodecyl benzene sulfonic acid are added, benzene is added dropwise after stirring 20min in oscillating reactions 0.5h again
Amine is stirred to react 8h, then product is heated to a period of time at 200 DEG C, removes aniline and deionized water, continues constant temperature and keeps
Until dry, ground 200 mesh can be obtained obtained product while hot.
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, and ball mill described in step (2) turns
Fast 300r/min, ball milling 60min.
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, one section of heat preservation described in step (2)
Time, wherein the time is 30min.
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, sulfuric acid and salt described in step (3)
The mixed acid solution of acid, wherein the volume ratio of sulfuric acid and hydrochloric acid is 2-3:1-3, and the concentration of mixed acid is 1mol/L.
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, acid-soluble described in step (3)
Middle reaction a period of time, wherein the time is 6h.
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, and step is stirred described in (4)
It is centrifuged, washed after reaction a period of time, wherein the reaction time is 30-45min.
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, acidification swelling described in step (4)
Soil, ferric trichloride, aniline and dodecyl benzene sulfonic acid weight ratio be 5.0-5.2:2.6-2.8:46.5-47.1:3.25-
3.31。
The invention has the advantages that the present invention is being passed through by will reach target mesh number after the broken sizing screening of bentonite origin miberal powder
Surface water, adsorbed water and constitution water are successively lost after crossing roasting, reduces moisture film to the absorption resistance of organic substance, makes swollen
The absorption property of profit soil is changed, and has not only driven away the water in structure channel at 300 DEG C of maturing temperature, but also do not destroy structure
Skeleton and crimping construction, improve absorption property, the calcium ion in bentonite can be made to be used instead with acid using acidleach processing bentonite
Hydrogen ion makes the hydrogen-based bentonite with hydrogen ion for main exchangeable cations, while also with acid to bentonitic molten
Solution and the removal to impurity, improve bentonitic whiteness and purity, to ferric trichloride is added in the bentonite of acidification, with bentonite
Interlayer hydrogen ion carries out ion exchange, then aniline is added dropwise, and aniline is adsorbed onto its interlayer by bentonite, and iron ion causes aniline swollen
The interlamination region polymerization of profit soil, further increases bentonitic interlamellar spacing, while remaining aniline can also polymerize in solution, coats
On bentonitic surface, it is very significantly improved bentonite hydrophobic performance and separating effect, bentonite provided by the invention adds
Work method is simple, at low cost, and the bentonite of processing has the characteristics that absorption property is high, hydrophobic performance is good and good purification, answers
It is good with prospect, it is worthy to be popularized.
Specific embodiment
A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, comprising the following specific steps
(1) bentonite raw ore is packed into feed bin, then raw ore is transported in hammer mill with rubber conveyer and is crushed,
Reuse rubber conveyer by broken ore be transported to rolling cage screen, will screen object be divided into powder, particle, big
Three ranks of grain, the powder and particle filtered out are collected the bulky grain filtered out for use by rubber conveyer and utilize glue
Band conveyer is back to crusher and carries out second-time breakage, continues to screen and repeat, and requires until all meeting screening；
(2) the bentonite powder being collected into step (1) is added in planetary ball mill and is ground, revolving speed 300r/
Min, ball milling 60min cross 200 meshes, then the bentonite of 200 meshes are put into Muffle furnace and rises to 300 with 30 DEG C/min speed
DEG C, 2h is calcined, comes out and cools down, is ground up, sieved after keeping the temperature 30min；
(3) bentonite after roasting in step (2) is added in the mixed acid solution of sulfuric acid and hydrochloric acid, wherein sulfuric acid and hydrochloric acid
Volume ratio is 2:1, and the concentration of mixed acid is 1mol/L, is stirred to react 6h at 88 DEG C of bath temperature, is filtered, product distilled water
Washing is in neutrality to filtrate, is then dried at 105 DEG C, is crushed after cooled to room temperature stand-by；
(4) liquor ferri trichloridi is added in the bentonite after acidification, is stirred after reacting 30min and is centrifuged, is washed, then
Deionized water, chloroform and dodecyl benzene sulfonic acid are added, oscillating reactions 0.5h is added dropwise aniline after stirring 20min again, stirs
Reaction 8h is mixed, wherein the weight ratio of acid bentonite, ferric trichloride, aniline and dodecyl benzene sulfonic acid is 5.0:2.6:46.5:
3.25, then product is heated at 200 DEG C to a period of time, remove aniline and deionized water, continues constant temperature maintained until dry,
Ground 200 mesh can be obtained obtained product while hot.
Claims (7)
1. a kind of bentonite raw ore prepares the bentonitic processing method of high absorption property, which is characterized in that including walking in detail below
It is rapid:
(1) bentonite raw ore is packed into feed bin, then raw ore is transported in hammer mill with rubber conveyer and is crushed,
Reuse rubber conveyer by broken ore be transported to rolling cage screen, will screen object be divided into powder, particle, big
Three ranks of grain, the powder and particle filtered out are collected the bulky grain filtered out for use by rubber conveyer and utilize glue
Band conveyer is back to crusher and carries out second-time breakage, continues to screen and repeat, and requires until all meeting screening；
(2) the bentonite powder being collected into step (1) is added in planetary ball mill and is ground, cross 200 meshes, then will
The bentonite of 200 meshes, which is put into Muffle furnace, rises to 300 DEG C with 30 DEG C/min speed, calcines 2h, comes out of the stove after keeping the temperature a period of time
It is cooling, it is ground up, sieved；
(3) bentonite after roasting in step (2) is added in the mixed acid solution of sulfuric acid and hydrochloric acid, in bath temperature 88-93
A period of time, filtering are stirred to react at DEG C, product is washed with distilled water to filtrate and is in neutrality, then dries at 105 DEG C, natural
It is crushed after being cooled to room temperature stand-by；
(4) liquor ferri trichloridi is added in the bentonite after acidification, is stirred after reacting a period of time and is centrifuged, is washed,
Then deionized water, chloroform and dodecyl benzene sulfonic acid are added, benzene is added dropwise after stirring 20min in oscillating reactions 0.5h again
Amine is stirred to react 8h, then product is heated to a period of time at 200 DEG C, removes aniline and deionized water, continues constant temperature and keeps
Until dry, ground 200 mesh can be obtained obtained product while hot.
2. a kind of bentonite raw ore according to claim 1 prepares the bentonitic processing method of high absorption property, feature
It is, drum's speed of rotation 300r/min described in step (2), ball milling 60min.
3. a kind of bentonite raw ore according to claim 1 prepares the bentonitic processing method of high absorption property, feature
It is, for a period of time, wherein the time is 30min for heat preservation described in step (2).
4. a kind of bentonite raw ore according to claim 1 prepares the bentonitic processing method of high absorption property, feature
It is, the mixed acid solution of sulfuric acid and hydrochloric acid described in step (3), wherein the volume ratio of sulfuric acid and hydrochloric acid is 2-3:1-3, is mixed
The concentration for closing acid is 1mol/L.
5. a kind of bentonite raw ore according to claim 1 prepares the bentonitic processing method of high absorption property, feature
It is, in acid-soluble middle reaction a period of time described in step (3), wherein the time is 6h.
6. a kind of bentonite raw ore according to claim 1 prepares the bentonitic processing method of high absorption property, feature
It is, being stirred after reacting a period of time described in step (4) and being centrifuged, washed, wherein the reaction time is 30-
45min。
7. a kind of bentonite raw ore according to claim 1 prepares the bentonitic processing method of high absorption property, feature
Be, acid bentonite described in step (4), ferric trichloride, aniline and dodecyl benzene sulfonic acid weight ratio be 5.0-
5.2:2.6-2.8:46.5-47.1:3.25-3.31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811121582.3A CN109248657A (en) | 2018-09-26 | 2018-09-26 | A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property |
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| CN201811121582.3A CN109248657A (en) | 2018-09-26 | 2018-09-26 | A kind of bentonite raw ore prepares the bentonitic processing method of high absorption property |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115634668A (en) * | 2022-10-31 | 2023-01-24 | 同济大学 | Preparation and use methods of sodium bentonite-loaded chitosan heavy metal stabilizing agent |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115634668A (en) * | 2022-10-31 | 2023-01-24 | 同济大学 | Preparation and use methods of sodium bentonite-loaded chitosan heavy metal stabilizing agent |
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Application publication date: 20190122 |