CN104785193A - Method for preparing porous titanate adsorbent from cow dung - Google Patents
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Abstract
A method for preparing a porous titanate adsorbent from cow dung comprises the following processing steps: taking fresh cow dung, adjusting the moisture content to be 88-96%, placing the cow dung in a stamping and homogenizing machine for stamping and homogenizing to obtain homogenized dung slurry, slowly dropwise adding titanium tetrachloride in the homogenized dung slurry under the continuous stirring condition, continuously stirring after dropwise adding, heating and boiling, performing evaporation and concentration till the moisture content is 85-86%, cooling to the room temperature to obtain titaniferous dung glue, adding alkali-earth metal carbonate in the titaniferous dung glue, stirring, uniformly mixing, drying at 100-110 DEG C to prepare titanium-alkali-earth metal-dung xerogel, placing the titanium-alkali-earth metal-dung xerogel in an electric furnace, calcinating for 4-6 h in air at 650-1,000 DEG C, and naturally cooling to the room temperature in the electric furnace to obtain the porous titanate adsorbent. According to the method, the cow dung is taken as an additive, titanium tetrachloride and alkaline-earth metal carbonate are respectively taken as titanium and alkaline-earth metal sources, and while the cow dung is used and treated, so that the low-cost and high-performance porous titanate heavy metal adsorbent material is prepared.
Description
Technical field
The invention belongs to environmental protection technical field, relate to the utilization of cow dung and the preparation of material for water treatment.In particular to a kind of method utilizing cow dung to prepare porous titanate adsorbent.
Background technology
In recent years, the demand of people to milk and beef increased year by year, had driven the development of China's cattle-raising, and cattle-raising, from traditional dispersion cultivation, is rapidly to scale, industrialized development.Along with the rapid raising of cattle-raising scale, intensive degree, the problem of environmental pollution that cow dung just concentrates discharge to cause highlights increasingly.For the process of cow dung, traditional method makes agricultural fertilizer.But, in modern breeding process, in order to promote growing of ox, improving the output of milk meat, often in feed, adding nutrient and the various additives such as copper zinc-iron; Simultaneously, in order to prevent epidemic and cure the disease needs in breeding process, also antibiotic etc can be used, these materials all can excrete with ight soil mostly, thus often the harmful substance such as heavy metal and antibiotic is contained in cow dung, these harmful substances are difficult to effectively remove in composting fermentation process, if directly used, and can to soil and environment.In recent years, having some utilizes the patent of invention of new method open about cow dung, as: generating (201110339298.5), papermaking (200610016594.0), Fodder making (201410527786.2,95120635.4,200710034265.3), cracking gas-producing (200510095448.7), producing methane (200810235526.2) and making active carbon (201110071341.4,201110071341.4,200610152143.X) etc.But these methods are due to the not yet extensive use of high in cost of production reason, and pile up like a mountain for the cow dung of a lot of cowboying enterprise, bring very large potential safety hazard to surrounding environment, are badly in need of the method for new process cow dung.
Ox is ruminating property plant-eating animal, and in modern cowboying process, Niu Yicao is Major Foods, add the additive such as some protein feeds and trace element simultaneously, these feeds chew digestion through ox, and most of nutriment is absorbed, and residue and a part of nutrients excrete with the form of fecaluria.Under normal circumstances, in cow dung, except containing except the moisture of 60-90%, also have cellulose, hemicellulose, lignin, protein and each seed amino acid and colloidal substance etc.Through the effect with digestive ferment of chewing of ox, all there are some changes in the structures and characteristics of these compositions in cow dung, shows the characteristic of many excellences, as complexing, dispersed, caking property etc., and the field such as collosol and gel synthesis is necessary just for these characteristics.
POROUS TITANIUM hydrochlorate is the high-performance heavy metal absorbent of first stability, and synthetic method the most frequently used is at present collosol and gel and method is derivative thus certain methods (east, Wang Min, Tan Yuling, chemical journal, 16 phases, p1641-1648 in 2010; Dong Zhang, Chun-li Zhang, Pin Zhou, Journal ofHazardous Materials, 2011,186 volume 2-3 phases, p971 – 977), these methods are all generally adopt citric acid, oleic acid, acetic acid and alcohol reagent etc. to be auxiliary agent, hydrogen peroxide etc. are pore-foaming agent, respectively with butyl titanate and alkaline earth nitrate for titanium and alkaline earth metal source, then add template etc., obtained by sol gel process synthesis.Material used and reagent price all very high, the cost of the POROUS TITANIUM hydrochlorate of synthesis is very high, restriction porous titanate adsorbent application in practice.
Summary of the invention
Object of the present invention, is to provide a kind of method utilizing cow dung to prepare porous titanate adsorbent, and utilize cow dung for auxiliary agent, cost is low, solves the problem that cow dung is polluted simultaneously.
The technical scheme adopted is:
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
(1), get fresh cow dung, adjustment moisture content is 88-96%, puts into and smashs refiner to pieces, smash homogenate to pieces, obtains homogeneous excrement slurry, for subsequent use;
(2), starching with the mass ratio of titanium tetrachloride by homogeneous excrement obtained in step (1) is that 1:0.095-0.5 takes titanium tetrachloride, under Keep agitation condition, titanium tetrachloride is slowly added dropwise in the homogeneous excrement slurry obtained in step (1), drip rear continuation to stir, heating is boiled, and evaporation and concentration to moisture content is 85-86%, cool to room temperature, obtain titaniferous excrement glue, for subsequent use;
(3), be that 1:1 takes alkaline earth metal carbonate by alkaline-earth metal and titanium mol ratio, join in titaniferous excrement glue obtained in step (2), stir, mix, dry under 100-110 DEG C of condition, make titanium-alkaline-earth metal-argol gel, for subsequent use;
(4), by the titanium-alkaline-earth metal-argol gel of preparation in step (3) be placed in electric furnace, under 650-1000 DEG C of condition, in air atmosphere, calcine 4-6h, in stove, naturally cool to room temperature, to obtain final product.
When cow dung smashs homogenate to pieces in above-mentioned steps (1), smash speed of agitator >=4000 rev/min to pieces;
Homogenization time of smashing to pieces in above-mentioned steps (1) is 15-60min;
In above-mentioned steps (3), alkaline earth metal carbonate is one or more in calcium carbonate, brium carbonate, strontium carbonate, dolomite, lime stone, calcite;
The particle diameter < of above-mentioned alkaline earth metal carbonate 50 microns.
Above-mentioned cow dung is the fresh cow dung of dairy cow farm discharge.
The invention has the advantages that:
The present invention utilizes cow dung for auxiliary agent, respectively with titanium tetrachloride and alkaline earth metal carbonate for titanium and alkaline earth metal source, utilize and process cow dung while, prepare a kind of low cost, high performance POROUS TITANIUM Barbiturates heavy-metal adsorption material, manufacturing process of the present invention is simple, easy to operate, use cost of material lower, be suitable for extensive use, there is good economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the stereoscan photograph of porous calcium titanate 1 in embodiment 2.
Fig. 2 is the XRD spectrum of porous calcium titanate 1 in embodiment 2.
Detailed description of the invention
Embodiment 1
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
(1), get fresh cow dung, adjustment moisture content is 89-94%, puts into and smashs refiner to pieces, smash homogenate to pieces, obtains homogeneous excrement slurry, for subsequent use;
(2), starching with the mass ratio of titanium tetrachloride by excrement obtained in step (1) is that 1:0.095-0.38 takes titanium tetrachloride, under Keep agitation condition, titanium tetrachloride is slowly added dropwise in the homogeneous excrement slurry obtained in step (1), drip rear continuation to stir, heating is boiled, and evaporation and concentration to moisture content is 85-86%, cool to room temperature, obtain titaniferous excrement glue, for subsequent use;
(3), be that 1:1 takes alkaline earth metal carbonate powder by alkaline-earth metal and titanium mol ratio, join in titaniferous excrement glue obtained in step (2), stir, mix, dry under 105 DEG C of conditions, make titanium-alkaline-earth metal-argol gel, for subsequent use;
(4), by the titanium-alkaline-earth metal-argol gel of preparation in step (3) be placed in cabinet-type electric furnace, under 650-1000 DEG C of condition, in air atmosphere, calcine 4-6h, in stove, naturally cool to room temperature, to obtain final product.
Embodiment 2
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 89%, is placed in and smashs to pieces in refiner, with 5000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 95g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 86%, cool to room temperature, obtains acid titaniferous excrement glue; Take 50.5g agstone, evenly add in titaniferous excrement glue, stir, mix, dry under 110 DEG C of conditions, make titanium-calcium-argol gel; Titanium-calcium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 6h, in stove, naturally cool to room temperature, obtain porous calcium titanate 1;
Above-mentioned agstone is 99% containing calcium carbonate, and particle diameter is 25 microns.
Embodiment 3
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 92%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 190g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 86%, cool to room temperature, obtains acid titaniferous excrement glue; Take 101g lime stone powder, evenly add in titaniferous excrement glue, stir, mix, dry under 110 DEG C of conditions, make titanium-calcium-argol gel; Titanium-calcium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 4h, in stove, naturally cool to room temperature, obtain porous calcium titanate 2;
Above-mentioned agstone is 99% containing calcium carbonate, and particle diameter is 25 microns.
Embodiment 4
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 94%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 380g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 86%, cool to room temperature, obtains acid titaniferous excrement glue; Take 202g lime stone powder, evenly add in titaniferous excrement glue, stir 30min, mix, dry under 105 DEG C of conditions, make titanium-calcium-argol gel; Titanium-calcium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 5h, in stove, naturally cool to room temperature, obtain porous calcium titanate 3;
Above-mentioned agstone is 99% containing calcium carbonate, and particle diameter is 25 microns.
Embodiment 5
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 90%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 190g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 101g lime stone powder, evenly add in titaniferous excrement glue, stir, mix, dry under 100 DEG C of conditions, make titanium-calcium-argol gel; Titanium-calcium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 6h, in stove, naturally cool to room temperature, obtain porous calcium titanate 4;
Above-mentioned agstone is 99% containing calcium carbonate, and particle diameter is 25 microns.
Embodiment 6
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 88%, is placed in and smashs to pieces in refiner, with 5000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 500g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 267g agstone, evenly add in titaniferous excrement glue, stir, mix, dry under 110 DEG C of conditions, make titanium-calcium-argol gel; Titanium-calcium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 4h, in stove, naturally cool to room temperature, obtain porous calcium titanate 5;
Above-mentioned agstone is 99% containing calcium carbonate, and particle diameter is 25 microns.
Embodiment 7
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 90%, is placed in and smashs to pieces in refiner, with 5000r/min mixing speed, smash homogenate 40min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 190g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 93g dolomite dust, evenly add in titaniferous excrement glue, stir, mix, dry under 105 DEG C of conditions, make titanium-calcium/magnesium-argol gel; Titanium-calcium/magnesium-argol gel is placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcines 6h in air atmosphere, naturally cool to room temperature in stove, obtains porous calcium titanate/magnesium compound adsorbent 1;
Above-mentioned dolomite dust is containing calcium carbonate 55.36%, and magnesium carbonate 44.10%, particle diameter is 25 microns.
Embodiment 8
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 92%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 380g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 186g dolomite dust, evenly add in titaniferous excrement glue, stir, mix, dry under 105 DEG C of conditions, make titanium-calcium/magnesium-argol gel; Titanium-calcium/magnesium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, calcines 6h in air atmosphere, naturally cool to room temperature in stove, obtains porous calcium titanate/magnesium compound adsorbent 2;
Above-mentioned dolomite dust is containing calcium carbonate 55.36%, and magnesium carbonate 44.10%, particle diameter is 25 microns.
Embodiment 9
Utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 90%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 570g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and being evaporated to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 595g brium carbonate powder, add in titaniferous excrement glue, stir, mix, dry under 100 DEG C of conditions, make titanium-barium-argol gel; Titanium-barium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 6h, in stove, naturally cool to room temperature, obtain porous barium titanate;
Brium carbonate is technical grade, content 99.5%, and particle diameter is 23 microns.
POROUS TITANIUM hydrochlorate is to the absorption property of lead
In order to investigate the absorption property of the POROUS TITANIUM hydrochlorate heavy metal obtained in embodiment 2-9, get the standard liquid containing 25mg lead, in 150mL scale calibrated tool plug conical flask, adjust the pH value of solution to 5,50mL scale is settled to water, add the POROUS TITANIUM hydrochlorate of 0.1g, be placed on oscillator, with 200r/min speed, vibration absorption 20min, centrifugation, surveys the content of heavy metal lead in supernatant with Atomic absorption, calculate clearance by formula (1).The results are shown in Table 1.
In formula: η is plumbous clearance (%); C
0for initial concentration (mg/L); C
efor equilibrium concentration (mg/L).
The POROUS TITANIUM hydrochlorate prepared in table 1 embodiment 2-9 is to the removal capacity of lead
The regenerability of material
Get the POROUS TITANIUM hydrochlorate after absorption, wash 3 times, add the salpeter solution 10mL of 1mol/L respectively, vibrate wash-out 5min on oscillator, centrifugal, with the content of the lead ion of (or measuring after dilution) in atomic absorption detecting supernatant, calculate wash-out yield and the rate of recovery.The results are shown in Table 2:
Table 2: wash-out recovering state
| Absorption total amount (mg) | Wash-out yield (mg) | The rate of recovery (%) | |
| Porous calcium titanate 1 | 25 | 24.15 | 96.60 |
| Porous calcium titanate 2 | 25 | 23.86 | 95.44 |
| Porous calcium titanate 3 | 24.08 | 22.98 | 95.43 |
| Porous calcium titanate 4 | 25 | 24.96 | 99.84 |
| Porous calcium titanate 5 | 18.91 | 18.14 | 95.92 |
| Porous calcium titanate magnesium 1 | 25 | 24.71 | 98.84 |
| Porous calcium titanate magnesium 2 | 25 | 23.65 | 94.60 |
| Porous barium titanate | 20.12 | 19.33 | 96.07 |
After wash-out, can reuse after POROUS TITANIUM hydrochlorate is washed to neutrality.
Claims (10)
1. utilize cow dung to prepare a method for porous titanate adsorbent, it is characterized in that, comprise following processing step:
(1), get fresh cow dung, adjustment moisture content is 88-96%, puts into and smashs refiner to pieces, smash homogenate to pieces, obtains homogeneous excrement slurry, for subsequent use;
(2), starching with the mass ratio of titanium tetrachloride by homogeneous excrement obtained in step (1) is that 1:0.095-0.5 takes titanium tetrachloride, under Keep agitation condition, titanium tetrachloride is slowly added dropwise in the homogeneous excrement slurry obtained in step (1), drip rear continuation to stir, heating is boiled, and evaporation and concentration to moisture content is 85-86%, cool to room temperature, obtain titaniferous excrement glue, for subsequent use;
(3), be that 1:1 takes alkaline earth metal carbonate by alkaline-earth metal and titanium mol ratio, join in titaniferous excrement glue obtained in step (2), stir, mix, dry under 100-110 DEG C of condition, make titanium-alkaline-earth metal-argol gel, for subsequent use;
(4), by the titanium-alkaline-earth metal-argol gel of preparation in step (3) be placed in electric furnace, under 650-1000 DEG C of condition, in air atmosphere, calcine 4-6h, in stove, naturally cool to room temperature, to obtain final product.
2. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that: when cow dung smashs homogenate to pieces in described step (1), smash speed of agitator >=4000 rev/min to pieces.
3. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that: the Homogenization time of smashing to pieces in described step (1) is 15-60min.
4. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that: in described step (3), alkaline earth metal carbonate is one or more in calcium carbonate, brium carbonate, strontium carbonate, dolomite, lime stone, calcite.
5. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that: the particle diameter < of described alkaline earth metal carbonate 50 microns.
6. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that, comprise following processing step:
(1), get fresh cow dung, adjustment moisture content is 89-94%, puts into and smashs refiner to pieces, smash homogenate to pieces, obtains homogeneous excrement slurry, for subsequent use;
(2), starching with the mass ratio of titanium tetrachloride by excrement obtained in step (1) is that 1:0.095-0.38 takes titanium tetrachloride, under Keep agitation condition, titanium tetrachloride is slowly added dropwise in the homogeneous excrement slurry obtained in step (1), drip rear continuation to stir, heating is boiled, and evaporation and concentration to moisture content is 85-86%, cool to room temperature, obtain titaniferous excrement glue, for subsequent use;
(3), be that 1:1 takes alkaline earth metal carbonate powder by alkaline-earth metal and titanium mol ratio, join in titaniferous excrement glue obtained in step (2), stir, mix, dry under 105 DEG C of conditions, make titanium-alkaline-earth metal-argol gel, for subsequent use;
(4), by the titanium-alkaline-earth metal-argol gel of preparation in step (3) be placed in cabinet-type electric furnace, under 650-1000 DEG C of condition, in air atmosphere, calcine 4-6h, in stove, naturally cool to room temperature, to obtain final product.
7. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 89%, is placed in and smashs to pieces in refiner, with 5000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 95g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 86%, cool to room temperature, obtains acid titaniferous excrement glue; Take 50.5g agstone, evenly add in titaniferous excrement glue, stir, mix, dry under 110 DEG C of conditions, make titanium-calcium-argol gel; Titanium-calcium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 6h, in stove, naturally cool to room temperature, obtain porous calcium titanate 1;
Above-mentioned agstone is 99% containing calcium carbonate, and particle diameter is 25 microns.
8. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 90%, is placed in and smashs to pieces in refiner, with 5000r/min mixing speed, smash homogenate 40min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 190g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 93g dolomite dust, evenly add in titaniferous excrement glue, stir, mix, dry under 105 DEG C of conditions, make titanium-calcium/magnesium-argol gel; Titanium-calcium/magnesium-argol gel is placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcines 6h in air atmosphere, naturally cool to room temperature in stove, obtains porous calcium titanate/magnesium compound adsorbent 1;
Above-mentioned dolomite dust is containing calcium carbonate 55.36%, and magnesium carbonate 44.10%, particle diameter is 25 microns.
9. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 92%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 60min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 380g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and evaporation and concentration to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 186g dolomite dust, evenly add in titaniferous excrement glue, stir, mix, dry under 105 DEG C of conditions, make titanium-calcium/magnesium-argol gel; Titanium-calcium/magnesium-argol gel is placed in cabinet-type electric furnace, under 1000 DEG C of conditions, calcines 6h in air atmosphere, naturally cool to room temperature in stove, obtains porous calcium titanate/magnesium compound adsorbent 2;
Above-mentioned dolomite dust is containing calcium carbonate 55.36%, and magnesium carbonate 44.10%, particle diameter is 25 microns.
10. a kind of method utilizing cow dung to prepare porous titanate adsorbent according to claim 1, is characterized in that, comprise following processing step:
Get fresh cow dung, adjustment moisture content is 90%, is placed in and smashs to pieces in refiner, with 4000r/min mixing speed, smash homogenate 15min to pieces, obtains homogeneous excrement slurry; Get 1000g homogeneous excrement slurry, under Keep agitation condition, dropwise add 570g titanium tetrachloride, after dripping, continue to stir, heating is boiled, and being evaporated to moisture content is 85%, cool to room temperature, obtains acid titaniferous excrement glue; Take 595g brium carbonate powder, add in titaniferous excrement glue, stir, mix, dry under 100 DEG C of conditions, make titanium-barium-argol gel; Titanium-barium-argol gel is placed in cabinet-type electric furnace, under 750 DEG C of conditions, in air atmosphere, calcines 6h, in stove, naturally cool to room temperature, obtain porous barium titanate;
Brium carbonate is technical grade, content 99.5%, and particle diameter is 23 microns.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986324A (en) * | 2017-11-17 | 2018-05-04 | 河北工业大学 | A kind of preparation method of the calcium titanate nano material of activated carbon supported perovskite structure |
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| JPS535091A (en) * | 1976-07-05 | 1978-01-18 | Kanebo Ltd | Production of heavy metal ion adsorbent |
| CN102430382A (en) * | 2011-09-23 | 2012-05-02 | 沈阳理工大学 | Method for preparing porous calcium titanate heavy metal adsorbent |
| CN103920479A (en) * | 2014-04-10 | 2014-07-16 | 福建师范大学 | Preparation method and applications of biomass modified TiO2 visible light photocatalyst |
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2015
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535091A (en) * | 1976-07-05 | 1978-01-18 | Kanebo Ltd | Production of heavy metal ion adsorbent |
| CN102430382A (en) * | 2011-09-23 | 2012-05-02 | 沈阳理工大学 | Method for preparing porous calcium titanate heavy metal adsorbent |
| CN103920479A (en) * | 2014-04-10 | 2014-07-16 | 福建师范大学 | Preparation method and applications of biomass modified TiO2 visible light photocatalyst |
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| CN107986324A (en) * | 2017-11-17 | 2018-05-04 | 河北工业大学 | A kind of preparation method of the calcium titanate nano material of activated carbon supported perovskite structure |
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