CN109126750A - Support type lithium adsorbent and preparation method thereof - Google Patents
Support type lithium adsorbent and preparation method thereof Download PDFInfo
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- CN109126750A CN109126750A CN201710499377.XA CN201710499377A CN109126750A CN 109126750 A CN109126750 A CN 109126750A CN 201710499377 A CN201710499377 A CN 201710499377A CN 109126750 A CN109126750 A CN 109126750A
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3042—Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28095—Shape or type of pores, voids, channels, ducts
- B01J20/28097—Shape or type of pores, voids, channels, ducts being coated, filled or plugged with specific compounds
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
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Abstract
The present invention relates to lithium adsorbent fields, and in particular to support type lithium adsorbent and preparation method thereof.The support type lithium adsorbent includes: supporter and the porous microstructure that is formed by curing in the hole of supporter by lithium adsorbent powder and adhesive.Support type lithium adsorbent adsorption capacity with higher, adsorptive selectivity and the intensity.
Description
Technical field
The present invention relates to lithium adsorbent fields, and in particular to support type lithium adsorbent and preparation method thereof.
Background technique
By the preparation of inorganic adsorbent, it is to be added to adhesive in inorganic adsorbent presoma to be granulated, makes
Grain method mainly has physical method and chemical method.Wherein, physical method mainly uses PVC to carry out extruding pelletization as adhesive, squeezes out
Process is not related to chemically reacting；Chemical method mainly by the way that adhesive is added to inorganic adsorbent presoma, forms two-phase interface
Suspension granulation is carried out, is then heated so that adhesive solidifies.
Physical method there are the problem of mainly adsorbent mechanical strength it is low, adsorbent water permeability is poor, leads to large amount of adsorption
Width decline；Although chemical method prepares adsorbent, mechanical strength is higher, and technical process consistency is poor, and there is also suctions after being granulated
The deficiency that attached performance declines to a great extent.
Summary of the invention
The purpose of the present invention is to provide a kind of novel support type lithium adsorbent and preparation method thereof, which inhales
Attached dose of adsorption capacity, adsorptive selectivity and intensity with higher.
To achieve the goals above, one aspect of the present invention provides a kind of support type lithium adsorbent, the support type lithium adsorbent
The porous microstructure for including: supporter and being formed by curing in the hole of supporter by lithium adsorbent powder and adhesive.
Second aspect of the present invention provides a kind of preparation method of support type lithium adsorbent, this method comprises:
(1) feed liquid containing lithium adsorbent powder and adhesive is provided；
(2) feed liquid is mixed with supporter, obtains the supporter for being filled with the feed liquid in hole；
(3) supporter that the feed liquid is filled in hole is heating and curing.
Third aspect present invention provides support type lithium adsorbent prepared by the above method.
Support type lithium adsorbent provided by the invention is using porous aggregate body as supporter, and by lithium in the hole of supporter
Adsorbent powder and adhesive have been formed by curing porous microstructure, the support type lithium adsorbent adsorption capacity with higher, suction
Attached selectivity and intensity.
Detailed description of the invention
Fig. 1 is the SEM figure of the resulting support type lithium adsorbent of embodiment 1；
Fig. 2 is the SEM figure of the resulting support type lithium adsorbent of embodiment 2；
Fig. 3 is the SEM figure of the resulting lithium adsorbent of comparative example 1.
Specific embodiment
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
One aspect of the present invention provides a kind of support type lithium adsorbent, which includes: supporter and propping up
The porous microstructure being formed by curing in the hole of support body by lithium adsorbent powder and adhesive.
There are adsorption desorption speed that technology slow, that adsorptive selectivity is poor and adsorption desorption amount is small is asked for lithium adsorbent in the prior art
Topic, inventor have found that its adsorption capacity can be improved in the surface area for increasing lithium adsorbent but effect is not obvious enough under study for action, invention
People is further designed into the lithium adsorbent of porous structure, but in experiments it is found that, he because the lithium adsorbent of porous structure is strong
Spend poor, the immersion through salt lake or brine gradually can be washed away and be corroded, or even be disappeared, and the requirement of actual production is unable to satisfy.
In this regard, inventor obtains technical solution described herein in a large amount of test.Supporter provided by the invention is porous fills out
Material can resist the long-term erosion of salt lake or brine with some strength, while its hole is higher, be convenient for lithium adsorbent powder
More microcosmic porous microstructure is formed with adhesive, the technology that lithium adsorbent adsorption desorption amount is small and breakage rate is high is solved and asks
Topic.
According to the present invention, the support type lithium adsorbent is preferably using porous aggregate body as supporter, and due to the support
Body is cellular, is had compared with multiple hole, in order to which lithium adsorbent powder and adhesive are formed by curing with more in the hole
Microporous porous microstructure.Wherein, the porous aggregate body is the especially hollow object as filler with aperture,
Its material can be plastics, rubber, metal material etc., it is contemplated that the bond strength of porous microstructure and supporter is preferably moulded
Material and/or rubber porous aggregate body.
According to the present invention, the porous aggregate body can have diversified pattern, and for example, hollow many-sided ball is (usually
It has mutually staggers there are two the sector of hemisphere, such as the hollow sphere of Yixing City Ya Neng plastic machinery equipment factory preparation), Bao
(such as Tongxiang City young master's special plastic product is limited for your ring, cascade ring, the rotary-type suspension ball of fishnet shape, MBBR biologic packing material
The Related product of company), conjugate ring, Haier's ring, one of nanotesla ring etc. or a variety of.
In accordance with the present invention it is preferred that the diameter of the porous aggregate body is 100mm hereinafter, preferably 10-80mm, more excellent
It is selected as 20-70mm, for example, 30-50mm.Preferably, it is the hole of 0.1-20mm that the porous aggregate body, which has aperture, is preferably had
Having aperture is the hole of 0.5-15mm, the hole for being more preferably 1-10mm with aperture, for example, 5-8mm.Here diameter refers to more
The full-size of hole filling body, wherein when porous aggregate body is spherical, which indicates the diameter of ball；When porous aggregate body
When for elliposoidal, which indicates its maximum diameter；When porous aggregate body is cuboid, which indicates the length of cuboid
Side size；When porous aggregate body is irregular shape, which indicates the equivalent diameter (being equivalent to granularity) of its equivalent sphere.
In accordance with the present invention it is preferred that the porosity of the porous aggregate body be 20% or more, preferably 20-99%, preferably
For 40-99%, more preferably 50-99%, for example, 60-95%.
According to the present invention, porous microstructure is formed between the hole of the supporter, such porous microstructure is by lithium
What adsorbent powder and adhesive were formed by curing.Wherein it is preferred to which it is 0.5-10 μm that the porous microstructure, which has aperture,
Hole, the hole for being preferably 1-5 μm with aperture.In a preferred embodiment of the invention, the porous microstructure has
Hole average pore size be 0.5-10 μm, more preferably 1-5 μm.
According to the present invention, in the porous microstructure, the amount of the lithium adsorbent powder and adhesive can be in wider model
Enclose interior variation, it is preferable that the weight ratio of the lithium adsorbent powder and adhesive be 100:10-50, preferably 100:15-40,
More preferably 100:20-30, for example, 100:20-27.
According to the present invention, the various lithium adsorbent powder body materials that the lithium adsorbent powder can be conventional for the present invention, example
It such as can be one of aluminium salt lithium adsorbent, Li-Ti oxide lithium adsorbent and lithium manganese oxide-type lithium adsorbent or a variety of.
The lithium adsorbent powder can be commercially available product, can also be made in the method for this field routine.Wherein, with aluminium salt lithium adsorbent
For preparation, the preparation method of the aluminium salt lithium adsorbent includes: that (its dosage makes Al and Li by aluminium hydroxide and lithium hydroxide
Molar ratio is 1.8-2.2:1) mixed (for example, by using high-speed mixer mixing 20-40min), then in air atmosphere into
Row heating (such as heating 2-4h at 180-220 DEG C), water is then added, and (dosage of water makes the weight ratio of water and powder be 2-
It 5:1) is mixed, gained mixture carries out ripening (such as being aged 2-5h at 50-80 DEG C), and hydrochloric acid is added extremely after cooling
Upper strata aqueous phase pH most 4-6, being separated and dried powder can be obtained aluminium salt lithium adsorbent.
According to the present invention, the adhesive is curable and forms porous microstructure with the lithium adsorbent powder, it is preferable that
The adhesive is resinae adhesive and/or rubber adhesive, wherein the adhesive contains curable materials and solidification
Agent.Wherein, curable materials are preferably bisphenol A type epoxy resin (such as bisphenol A type epoxy resin in the resinae adhesive
E-51), bisphenol-A epoxy resin, bisphenol f type epoxy resin, bisphenol-s epoxy resin, bis-phenol p-type epoxy resin, hydroxyl
Methyl bisphenol A epoxy resin, brominated bisphenol A epoxy resin, phenol novolak epoxy resin (EPN), o-cresol phenolic aldehyde
Epoxy resin (ECN), epoxy resorcinol formaldehyde resin, tetraphenolethane epoxy resin, naphthol novolac epoxy resin (EEPN),
One of glycidyl ester type epoxy resin, glycidyl amine type epoxy resin, TDE-85 epoxy resin etc. are a variety of.Rubber
Curable materials for example can be one of neoprene, nitrile rubber, butadiene-styrene rubber, silicon rubber etc. or more in class adhesive
Kind.
Second aspect of the present invention provides a kind of preparation method of support type lithium adsorbent, this method comprises:
(1) feed liquid containing lithium adsorbent powder and adhesive is provided；
(2) feed liquid is mixed with supporter, obtains the supporter for being filled with the feed liquid in hole；
(3) supporter that the feed liquid is filled in hole is heating and curing.
According to the present invention, the lithium adsorbent powder, supporter and adhesive are as described above, and the present invention is herein
It repeats no more.
Wherein it is preferred to which the weight ratio of the lithium adsorbent powder and adhesive is 100:5-40, preferably 100:5-
30, more preferably 100:10-20, for example, 100:10-15.
According to the present invention, the curing agent is that can make cured various curing agent, for example, alkaline curing agent (including
Aliphatic diamine and polyamines, aromatic polyamine, other nitrogenous compounds and modified fatty amine), acid curing agent it is (including organic
Acid, acid anhydrides and boron trifluoride and its complex compound), add-on type curing agent, catalytic curing agent etc., specific example for example can be
Ethylenediamine, hexamethylene diamine, diethylenetriamine, triethylene tetramine, diethylaminopropylamine, maleic anhydride, phthalic anhydride etc.
One of or it is a variety of.There is no particular limitation to the curing agent by the present invention, can use any curing agent of this field routine
Wherein it is preferred to which the adhesive contains curable materials and curing agent, wherein the use of the curable materials and curing agent
The weight ratio 100:20-80 of amount, preferably 100:30-60.
According to the present invention, the solvent that the feed liquid uses be preferably water, acetone, methanol, ethyl alcohol, ethylene glycol, propylene glycol and
One of isopropanol is a variety of.The dosage of the solvent can change in a wider range, it is preferable that the lithium adsorbent powder
Weight ratio with the dosage of solvent is 100:5-20, preferably 100:10-15.
According to the present invention, surfactant and/or pore-foaming agent be may be incorporated into the feed liquid.
Wherein, the surfactant may include metal carboxylate (sodium alginate, pectic acid sodium, sodium humate, carboxymethyl
Sodium cellulosate etc.), Sulfonates (calcium dodecyl benzene sulfonate, neopelex, myristyl benzene sulfonic acid sodium salt etc.), season
Derivative class (the octylphenol polyethylene ethylene oxide of ammonium salt class (dodecyl trimethyl ammonium chloride, hexadecyltrimethylammonium chloride etc.), PEO
Ether, nonylphenol polyoxyethylene ether, dodecyl phenol polyethenoxy ether etc.) etc. one of surfactants or a variety of.Preferably,
The weight ratio of the dosage of the lithium adsorbent powder and surfactant is 100:0-10, preferably 100:1-8.
Wherein, the pore-foaming agent for example may include metal chloride (zinc chloride, cobalt chloride, lithium chloride etc.), carbonate
And bicarbonate (ammonium hydrogen carbonate, sodium bicarbonate, calcium carbonate, magnesium carbonate etc.), organic solvent (polyvinyl alcohol, polyethylene glycol, positive penta
Alkane, n-hexane, normal heptane, petroleum ether etc.) and azo-compound, sulfonyl hydrazines compound, nitroso compound etc. in one
Kind is a variety of.Preferably, the weight ratio of the dosage of the lithium adsorbent powder and pore-foaming agent is 100:0-10, preferably 100:1-
8。
According to the present invention, in step (2), the feed liquid is mixed with porous aggregate body, can be feed liquid and porous aggregate
More or feed liquid volumes that body mixes the volume ratio porous aggregate body of perhaps feed liquid in equal volume can be than porous aggregate body
Few point, the preferably dosage of feed liquid can cover porous aggregate body, and the volume ratio of the feed liquid and porous aggregate body such as may be used as a result,
Think 1-4:1.
According to the present invention, in step (3), it is preferable that the condition being heating and curing includes: that temperature is 20-120 DEG C, when
Between be 1-5h.It is highly preferred that it is 80-120 DEG C that the condition being heating and curing, which includes: temperature, time 1-2h.Pass through the heating
Curing process, that is, the adhesive solidification that may make porous aggregate body to include, and more together with the lithium adsorbent powder being scattered with
Porous microstructure is constituted between the hole of hole filling body；The porous microstructure can be in heat curing process, by solvent evaporation, appoint
The gas of the generations such as the decomposition of the pore-foaming agent of choosing breaks through, the effect of optional surfactant etc. makes the adhesive being heating and curing
Form the porous microstructure with microcellular structure.The hole using porous aggregate body as supporter and on supporter is obtained as a result,
Between the support type lithium adsorbent of porous microstructure is formed by curing by lithium adsorbent powder and adhesive.
Third aspect present invention provides support type lithium adsorbent prepared by the above method.
Support type lithium adsorbent provided by the invention using porous aggregate body as supporter, and between the hole on supporter by
Lithium adsorbent powder and adhesive have been formed by curing porous microstructure, the support type lithium adsorbent adsorption capacity with higher,
Adsorptive selectivity and intensity.
The present invention will be described in detail by way of examples below.
In following example:
Hollow many-sided ball filling body is sector of the tool there are two hemisphere run quickly purchased from Shenzhen and reach plastic cement Co., Ltd
The hollow many-sided ball filling body mutually staggered, the diameter of the sphere are 50mm, porosity 99%.
Preparation example 1
This preparation example is used to illustrate the preparation of lithium adsorbent powder.
(1) by aluminium hydroxide and monohydrate lithium hydroxide (its dosage makes the molar ratio of Al and Li be 2:1) in mixed at high speed
30min is mixed in machine；And gained mixture is heated into 3h in air at 200 DEG C；
(2) powder for obtaining step (1) is added in suitable deionized water (weight ratio of water and powder is 3:1), and
Stir evenly, be aged 3h at 70 DEG C, after cooling plus hydrochloric acid adjust upper strata aqueous phase to pH be 5.3；
(3) dry powder is separated.
Embodiment 1
The present embodiment is for illustrating support type lithium adsorbent and preparation method thereof of the invention.
(1) bisphenol A type epoxy resin E-51 (is purchased from Guangzhou Ai Chuan Chemical Co., Ltd., the dosage in terms of dry weight is
10 parts by weight), epoxy hardener (consolidate the GG-6689 trade mark of specialization work purchased from Jiangmen city, the dosage in terms of dry weight be 5 weight
Part), acetone (dosage is 10 parts by weight) stirred with the resulting aluminium salt lithium adsorbent powder of preparation example 1 (dosage is 75 parts by weight)
Mixing is mixed, feed liquid is obtained；
(2) hollow many-sided ball filling body is added in feed liquid (the dosage total volume of hollow many-sided ball filling body and feed liquid
Volume ratio is 1:1.5), and stir evenly；
(3) will load, which has the hollow many-sided ball filling body of feed liquid to be put into baking oven, is heating and curing 1h at 100 DEG C to get arriving
Support type lithium adsorbent A1.
Pass through the SEM spectrogram hollow many-sided ball filling body hole (as shown in Figure 1) that can be seen that the support type lithium adsorbent
Between be formed with porous microstructure, the aperture of the porous microstructure is 1-3 μm.
Embodiment 2
The present embodiment is for illustrating support type lithium adsorbent and preparation method thereof of the invention.
According to method described in embodiment 1, the difference is that, the octyl phenol of 5 parts by weight is also introduced in the feed liquid of step (1)
Polyoxyethylene ether OP-10 surfactant (is purchased from Jiangsu Hai'an Petrochemical Plant), finally obtains support type lithium adsorbent A2.
Pass through the SEM spectrogram hollow many-sided ball filling body hole (as shown in Figure 2) that can be seen that the support type lithium adsorbent
Between be formed with porous microstructure, the aperture of the porous microstructure is 2-5 μm.
Embodiment 3
The present embodiment is for illustrating support type lithium adsorbent and preparation method thereof of the invention.
(1) bisphenol A type epoxy resin E-51 (is purchased from Guangzhou Ai Chuan Chemical Co., Ltd., the dosage in terms of dry weight is
15 parts by weight), epoxy hardener (consolidate the GG-6689 trade mark of specialization work purchased from Jiangmen city, the dosage in terms of dry weight be 5 weight
Part), ethylene glycol (dosage be 15 parts by weight) and the resulting aluminium salt lithium adsorbent powder of preparation example 1 (dosage is 75 parts by weight) progress
It is stirred, obtains feed liquid；
(2) hollow many-sided ball filling body is added in feed liquid (the dosage total volume of hollow many-sided ball filling body and feed liquid
Volume ratio is 1:2), and stir evenly；
(3) will load, which has the hollow many-sided ball filling body of feed liquid to be put into baking oven, is heating and curing 1h at 120 DEG C to get arriving
Support type lithium adsorbent A3.
Can be seen that by SEM spectrogram be formed between the hollow many-sided ball filling body hole of the support type lithium adsorbent it is more
Hole micro-structure, the aperture of the porous microstructure are 0.5-2 μm.
Embodiment 4
The present embodiment is for illustrating support type lithium adsorbent and preparation method thereof of the invention.
According to method described in embodiment 1, the difference is that, the dosage of bisphenol A type epoxy resin E-51 is 25 in step (1)
Parts by weight (in terms of dry weight) finally obtain support type lithium adsorbent A4.
Can be seen that by SEM spectrogram be formed between the hollow many-sided ball filling body hole of the support type lithium adsorbent it is more
Hole micro-structure, the aperture of the porous microstructure are 1-5 μm.
Embodiment 5
The present embodiment is for illustrating support type lithium adsorbent and preparation method thereof of the invention.
According to method described in embodiment 1, the difference is that, the dosage of bisphenol A type epoxy resin E-51 is 5 in step (1)
Parts by weight (in terms of dry weight) finally obtain support type lithium adsorbent A5.
Can be seen that by SEM spectrogram be formed between the hollow many-sided ball filling body hole of the support type lithium adsorbent it is more
Hole micro-structure, the aperture of the porous microstructure are 1-2 μm.
Comparative example 1
According to method described in embodiment 1, the difference is that, hollow many-sided ball filling body is not used, but uses extruder
The resulting feed liquid of step (1) is subjected to extruding pelletization, and dries and obtains lithium adsorbent D1.
It is (as shown in Figure 3) as can be seen that the lithium adsorbent and not formed considerable porous microstructure by SEM spectrogram.
Test case 1
The test that above-mentioned lithium adsorbent is carried out to adsorption capacity, adsorptive selectivity and percentage of damage, the result is shown in shown in table 2,
Wherein:
The test process of adsorption capacity and adsorptive selectivity includes: to be added to 10g lithium adsorbent using static adsorptive method
1h, filtering, test filter are stirred in 1000g salt lake bittern (each metal ion initial concentration is as shown in table 1 in salt lake bittern used)
The lithium content of liquid.
Adsorption capacity=(lithium content after lithium content-absorption before adsorbing in brine in brine)/adsorbent mass；
Adsorptive selectivity %=(brine Mg/Li ratio after brine Mg/Li ratio/absorption before 1- is adsorbed) × 100%.
Table 1
| Element | B | Ca | Li | Mg | Na | Mg/Li |
| Concentration | 97ppm | 485ppm | 127ppm | 4.953% | 1.714% | 390 |
The test process of percentage of damage includes: to be filled into lithium adsorbent in container to be impacted, by brine booster pump injection
Enter and carry out circulation impact in equipment, impact measures lithium adsorbent percentage of damage afterwards for 24 hours, and calculation formula is as follows:
Percentage of damage %=impact after adsorbent crushed particles quality/impact before absorbent particles quality × 100%.
Table 2
| Lithium adsorbent | Adsorption capacity (mg/g) | Adsorptive selectivity | Percentage of damage |
| A1 | 10 | 97% | 0.5% |
| A2 | 11 | 96% | 0.8% |
| A3 | 9 | 96% | 0.4% |
| A4 | 6 | 92% | 1.5% |
| A5 | 8 | 95% | 2.1% |
| D1 | 4 | 89% | 5% |
It can be seen that support type lithium adsorbent provided by the invention adsorption capacity with higher, suction by the data of table 2
Attached selectivity and intensity, wherein adsorption capacity is in 6mg/g or more, preferably 8mg/g or more, more preferably 9-12mg/g；Absorption
Selectivity is 90% or more, preferably 95% or more, more preferably 96% or more；Percentage of damage is 2.5% hereinafter, preferably
1.5% hereinafter, more preferably less than 1%.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (10)
1. a kind of support type lithium adsorbent, which is characterized in that the support type lithium adsorbent includes: supporter and the hole in supporter
The porous microstructure being formed by curing in hole by lithium adsorbent powder and adhesive.
2. support type lithium adsorbent according to claim 1, wherein the supporter is porous aggregate body；
Preferably, the diameter of the porous aggregate body is 100mm hereinafter, preferably 10-80mm, more preferably 20-70mm；
Preferably, it is the hole of 0.1-20mm that the porous aggregate body, which has aperture, is preferably the hole of 0.5-15mm with aperture, more
It is preferred that the hole for being 1-10mm with aperture；
Preferably, the porosity of the porous aggregate body is 20-99%, preferably 40-99%, more preferably 50-99%.
3. support type lithium adsorbent according to claim 1 or 2, wherein it is 0.5- that the porous microstructure, which has aperture,
10 μm of hole, the hole for being preferably 1-5 μm with aperture；
Preferably, the weight ratio of the lithium adsorbent powder and adhesive be 100:10-50, preferably 100:15-40, more preferably
For 100:20-30；
Preferably, the lithium adsorbent powder is aluminium salt lithium adsorbent, Li-Ti oxide lithium adsorbent and lithium manganese oxide type lithium
One of adsorbent is a variety of.
4. a kind of preparation method of support type lithium adsorbent, which is characterized in that this method comprises:
(1) feed liquid containing lithium adsorbent powder and adhesive is provided；
(2) feed liquid is mixed with supporter, obtains the supporter for being filled with the feed liquid in hole；
(3) supporter that the feed liquid is filled in hole is heating and curing.
5. according to the method described in claim 4, wherein, the supporter is porous aggregate body；
Preferably, the diameter of the porous aggregate body is 100mm hereinafter, preferably 10-80mm, more preferably 20-70mm；
Preferably, it is the hole of 0.1-20mm that the porous aggregate body, which has aperture, is preferably the hole of 0.5-15mm with aperture, more
It is preferred that the hole for being 1-10mm with aperture；
Preferably, the porosity of the porous aggregate body is 20-99%, preferably 40-99%, more preferably 50-99%.
6. method according to claim 4 or 5, wherein the weight ratio of the lithium adsorbent powder and adhesive is 100:
10-50, preferably 100:15-40, more preferably 100:20-30；
Preferably, the adhesive contains curable materials and curing agent, wherein the dosage of the curable materials and curing agent
Weight ratio 100:20-80, preferably 100:30-60；
Preferably, the lithium adsorbent powder is aluminium salt lithium adsorbent, Li-Ti oxide lithium adsorbent and lithium manganese oxide type lithium
One of adsorbent is a variety of.
7. the method according to claim 4 or 6, wherein the solvent that the feed liquid uses for water, acetone, methanol, ethyl alcohol,
One of ethylene glycol, propylene glycol and isopropanol are a variety of；
Preferably, the weight ratio of the dosage of the lithium adsorbent powder and solvent is 100:5-20, preferably 100:10-15.
8. the method according to claim 4 or 7, wherein also introducing in the feed liquid has surfactant and/or pore
Agent；
Preferably, the weight ratio of the dosage of the lithium adsorbent powder and surfactant is 100:0-10, preferably 100:1-
8；
Preferably, the weight ratio of the dosage of the lithium adsorbent powder and pore-foaming agent is 100:0-10, preferably 100:1-8.
9. the method according to any one of claim 4-8, wherein in step (3), the condition packet being heating and curing
Include: temperature is 20-120 DEG C, time 1-5h.
10. support type lithium adsorbent made from the method as described in any one of claim 4-9.
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| CN109821499A (en) * | 2019-03-13 | 2019-05-31 | 成都理工大学 | The whisker net of lithium carbonate knits material and preparation method thereof in a kind of enrichment salt lake bittern |
| CN111330540A (en) * | 2020-03-06 | 2020-06-26 | 旬阳领盛新材料科技有限公司 | Preparation method of graphene oxide composite aluminum lithium adsorbent |
| CN112237905A (en) * | 2020-10-10 | 2021-01-19 | 西安蓝深环保科技有限公司 | Lithium extraction adsorbent for raw halogen and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109821499A (en) * | 2019-03-13 | 2019-05-31 | 成都理工大学 | The whisker net of lithium carbonate knits material and preparation method thereof in a kind of enrichment salt lake bittern |
| CN109821499B (en) * | 2019-03-13 | 2021-04-13 | 成都理工大学 | Whisker net fabric material for enriching lithium carbonate in salt lake brine and preparation method thereof |
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| CN112237905B (en) * | 2020-10-10 | 2022-02-15 | 西安蓝深新材料科技有限公司 | Lithium extraction adsorbent for raw halogen and preparation method thereof |
| CN115945161A (en) * | 2022-11-25 | 2023-04-11 | 广东松泉环保设备有限公司 | Lithium adsorbent, preparation method and lithium extraction process |
| CN116751989A (en) * | 2023-06-21 | 2023-09-15 | 唐山鑫丰锂业有限公司 | Method for extracting lithium from salt lake brine |
| CN116751989B (en) * | 2023-06-21 | 2024-02-09 | 唐山鑫丰锂业有限公司 | Method for extracting lithium from salt lake brine |
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