CN104998601A - Method for preparing nano calcium titanate by modifying chicken manure through calcium oxide - Google Patents
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Abstract
The invention provides a method for preparing nano calcium titanate by modifying chicken manure through calcium oxide. The method includes the following process steps that fresh chicken manure is taken to be made into manure slurry and put into a smashing and homogenizing machine, hydrogen peroxide is added to the manure slurry, the slurry is mashed and homogenized for 50 minutes to 60 minutes, the calcium oxide is added to the manure slurry, the mixture is put into a closed space to be subjected to a heat preservation reaction for 20 hours to 24 hours at the temperature of 60 DEG C to 80 DEG C after a stirring and effervescence reaction is complete, and calcified and modified chicken manure jelly is obtained; tetrabutyl titanate is injected into the obtained calcified and modified chicken manure jelly dropwise under the continuous stirring condition, the mixture is stirred evenly after dropping operation is completed and then dried at the temperature of 105 DEG C, dried titanium-calcium-chicken manure xerogel is obtained, the obtained dried titanium-calcium-chicken manure xerogel is calcined for 5 hours to 6 hours at the temperature of 650 DEG C to 950 DEG C, and the nano calcium titanate is obtained. According to the method, the chicken mature is utilized to serve as an additive used for the process that calcium titanate is formed through sol gel in a synthetic mode, the chicken mature is utilized comprehensively, and meanwhile, the synthetic cost of the nano calcium titanate is lowered.
Description
Technical field
The invention belongs to environmental protection technical field, particularly a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium.
Background technology
Along with scale, the intensive and Mechanization Development of poultry husbandry, the environmental problem that the concentrated discharge of chicken manure causes is on the rise.Traditional Processing Method for Chicken Manure is by compost fermentation, make Agricultural Fertilizer, this method not only the cycle long, sweat can discharge a large amount of mephitis, and organic matter easily runs off and enters water body, causes the pollution of air and water.Simultaneously, in the process of modernization cultivation chicken, in order to promote the needs growing, improve egg production and prevent and cure diseases of chicken, the elements such as calcium iron zinc-manganese copper can be added into and use antibiotic etc. in feed, these material major parts can excrete with ight soil, these materials can not effectively be removed in traditional composting fermentation process, if apply soil with fertilizer, bring great harm can to soil and surrounding environment.In order to solve the innoxious use problem of chicken manure, people have developed some new chicken manure disposal and utilization technology (Zhu Qubo etc., ZL 201010233989.2; Open very civilian, patent of invention, application number: 201210561028.3; Wang Yuqin, the pollution of brid guano and control, Chinese livestock and poultry kind industry, 2014.07).But the utilization of these methods to chicken manure is limited, a lot of plants chicken manure is piled up, contaminated environment.
Nano barium titanate calcium is high-performance heavy metal absorbent (east, Hou Ping, chemical journal, 67 volume 12 phase: the p1336-1342 in 2009 of first stability; Dong Zhang, Chun-li Zhang, Pin Zhou, Journalof Hazardous Materials, 2011,186 volume 2-3 phases, p971 – 977).At present, the synthetic method of nano barium titanate calcium is collosol and gel calcination method, and the method utilizes the reagent such as citric acid, acetic acid, triethanolamine and alcohols as complexing, catalysis and dispersant, is titanium and calcium source with butyl titanate and calcium nitrate.Material used and reagent price all very high, the cost of the nano barium titanate calcium of synthesis is high, restriction calcium titanate adsorbent application in practice.
Chicken does not have tooth, its digestion power is also very poor, in feed, the nutriment such as most of protein, cellulose all directly excretes with ight soil, the alimentary canal of chicken the organic nutrient substance in feed is decomposed and modification power poor, thus the builder activity of chicken manure directly as synthesizing titanate is undesirable.
Summary of the invention
Object of the present invention, is to provide a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium, and this method production technology is simple, and cost is low, solves the problem that chicken manure pollutes simultaneously.
The technical scheme adopted is:
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
(1), fresh chicken manure is got, adjustment moisture content is 89-92%, obtained excrement slurry, be placed in and smash to pieces in refiner, starching with hydrogen peroxide mass ratio by excrement is the hydrogen peroxide that 1:0.1-0.2 gets that mass percentage concentration is 25-35%, hydrogen peroxide is added in excrement slurry, smash homogenate 50-60min to pieces, starching with calcium oxide mass ratio by excrement is that 1:0.1-0.3 gets calcium oxide, is added by calcium oxide in excrement slurry, stirs effervesce and reacts completely, airtight, insulation reaction 20-24h under 60-80 DEG C of condition, obtains calcification modification chicken manure glue, for subsequent use;
(2), be that 1:1 gets butyl titanate by calcium and titanium mol ratio, under Keep agitation condition, butyl titanate is added dropwise in the calcification modification chicken manure glue that step (1) obtains, after dripping off, stir, dry under 105 DEG C of conditions, make titanium-calcium-chicken manure xerogel, for subsequent use;
(3) titanium-calcium-chicken manure xerogel, by step (2) prepared is under 650-950 DEG C of condition, and calcining 5-6h, to obtain final product.
When smashing homogenate to pieces in above-mentioned steps (1), smash mixing speed >=6000r/min to pieces.
The present invention utilizes the bulky grain molecule of Mechanical Crushing and hydrogen peroxide oxidation destruction of organic material, calcium oxide is adopted to carry out calcification modification to organic matter in chicken manure again, cellulose and lignin are expanded, permeability improves, specific area increases, make the partially oxidized decomposition of protein, improve chicken manure to the complexing of metal ion and dispersibility.
The invention has the advantages that:
The present invention utilizes chicken manure as auxiliary agent used during collosol and gel synthesis calcium titanate, while comprehensive utilization chicken manure, the synthesis cost of valency is low nano barium titanate calcium, 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 XRD spectrum of nano barium titanate calcium 3 in embodiment 3.
Detailed description of the invention
Embodiment 1
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 89%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 20g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 121.4g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 1;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 2
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 90%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 2;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 3
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 60g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 364.2g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 3;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 4
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 92%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 60g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 485.5g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 4;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 5
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 20g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 5;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 6
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 20g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 800 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 6;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 7
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 20g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 950 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 7;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Embodiment 8
Utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 30g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 8;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
Nano barium titanate calcium is to the absorption property of lead
In order to investigate the absorption property of the nano barium titanate calcium heavy metal obtained in embodiment 1-8, get the standard liquid containing 25mg lead, in 150mL scale calibrated tool plug conical flask, adjust the pH value of solution to 6,50mL scale is settled to water, add the nano barium titanate calcium adsorbent 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 nano barium titanate calcium prepared in table 1 embodiment 1-8 is to the removal capacity of lead
The regenerability of material
Nano barium titanate calcium after absorption, washes 3 times, adds 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 (%) | |
| Nano barium titanate calcium 1 | 22.57 | 21.38 | 94.7 |
| Nano barium titanate calcium 2 | 23.21 | 22.39 | 96.5 |
| Nano barium titanate calcium 3 | 23.43 | 23.14 | 98.7 |
| Nano barium titanate calcium 4 | 21.57 | 21.52 | 99.8 |
| Nano barium titanate calcium 5 | 20.99 | 20.81 | 99.1 |
| Nano barium titanate calcium 6 | 20.27 | 19.44 | 95.9 |
| Nano barium titanate calcium 7 | 18.82 | 18.25 | 97.0 |
| Nano barium titanate calcium 8 | 22.06 | 21.52 | 97.5 |
After wash-out, can reuse after nano barium titanate calcium is washed to neutrality.
Claims (10)
1. utilize calcium oxide modification chicken manure to prepare a method for nano barium titanate calcium, it is characterized in that, comprise following processing step:
(1), fresh chicken manure is got, adjustment moisture content is 89-92%, obtained excrement slurry, be placed in and smash to pieces in refiner, starching with hydrogen peroxide mass ratio by excrement is the hydrogen peroxide that 1:0.1-0.2 gets that mass percentage concentration is 25-35%, hydrogen peroxide is added in excrement slurry, smash homogenate 50-60min to pieces, starching with calcium oxide mass ratio by excrement is that 1:0.1-0.3 gets calcium oxide, is added by calcium oxide in excrement slurry, stirs effervesce and reacts completely, airtight, insulation reaction 20-24h under 60-80 DEG C of condition, obtains calcification modification chicken manure glue, for subsequent use;
(2), be that 1:1 gets butyl titanate by calcium and titanium mol ratio, under Keep agitation condition, butyl titanate is added dropwise in the calcification modification chicken manure glue that step (1) obtains, after dripping off, stir, dry under 105 DEG C of conditions, make titanium-calcium-chicken manure xerogel, for subsequent use;
(3) titanium-calcium-chicken manure xerogel, by step (2) prepared is under 650-950 DEG C of condition, and calcining 5-6h, to obtain final product.
2. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that: when smashing homogenate to pieces in described step (1), smash speed of agitator >=6000r/min to pieces.
3. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 89%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 20g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 121.4g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 1;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
4. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 90%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 2;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
5. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 60g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 364.2g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 3;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
6. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 92%, be placed in and smash to pieces in refiner, add 40g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 60g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 485.5g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 4;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
7. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 20g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 5;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
8. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 20g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 800 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 6;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
9. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 20g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 950 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 7;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide are AR, and the mass fraction of hydrogen peroxide is 30%; Butyl titanate is chemically pure reagent.
10. a kind of method utilizing calcium oxide modification chicken manure to prepare nano barium titanate calcium according to claim 1, is characterized in that, comprise following processing step:
Take the fresh chicken manure 200g moisture content being adjusted to 91%, be placed in and smash to pieces in refiner, add 30g hydrogen peroxide, with 6000r/min mixing speed, smash homogenate 60min to pieces, take out, add 40g calcium oxide again, after stirring effervesce reaction, airtight, insulation reaction 24h under 70 DEG C of conditions, obtains homogeneous calcification modification chicken manure glue; Under Keep agitation condition, 242.8g butyl titanate is dropwise joined in calcification modification chicken manure glue, after dripping, continue to be uniformly mixed, dry under 105 DEG C of conditions, obtain titanium-calcium-argol gel, be placed in cabinet-type electric furnace, under 650 DEG C of conditions, calcine 6h, obtain nano barium titanate calcium 8;
Above-mentioned calcium oxide (CaO) and hydrogen peroxide (30%) are AR; Butyl titanate is chemically pure reagent.
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Application publication date: 20151028 |
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