CN104096520A - Preparation method of fibrous inorganic mineral gel - Google Patents
Preparation method of fibrous inorganic mineral gel Download PDFInfo
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- CN104096520A CN104096520A CN201410335431.3A CN201410335431A CN104096520A CN 104096520 A CN104096520 A CN 104096520A CN 201410335431 A CN201410335431 A CN 201410335431A CN 104096520 A CN104096520 A CN 104096520A
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- mineral gel
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Abstract
The invention discloses a preparation method of fibrous inorganic mineral gel. The method is characterized by comprising the following steps: fibrous clay mineral is ground to 120-200 meshes, isopropanol is added, and the mixture is soaked for 4-6 h, wherein isopropanol accounts for 1.5-2 times of the weight of clay; wet grinding or counter roller extruding is performed for 3-5 times, and clay-contained isopropanol suspension with the concentration of 10-50wt% is prepared through stirring; lower-layer non-clay impurities are removed, a lithiation agent is added, stirring is performed for 30-60 min at the stirring speed of 5,000-10,000 rpm, the lithiation agent adopts one of lithium chloride, lithium nitrate and lithium hydroxide, and the adding amount accounts for 2%-10% of the weight of dry clay; and pulp is dried centrifugally, and the fibrous inorganic mineral gel is obtained. The preparation method of the fibrous inorganic mineral gel is simple and safe, the process is easy to control, a product has high purity, high brightness and viscosity and is easy to disperse, raw materials are easy to obtain, the added dispersing agent and lithiation agent are non-toxic and harmless, and mass production is facilitated.
Description
Technical field
The present invention relates to a kind of preparation method of fibrous type clay gel, belong to clay deep process technology field.
Background technology
At present, Mineral Inorganic Gel is mainly prepared from by high-purity bentonite deep processing, is widely used in daily-use chemical industry, papermaking, medicine and other fields.
The fibrous type such as attapulgite clay and sepiolite clay ore deposit can disperse to form the three-dimensional net structure of similar " bavin buttress " type in water, thereby has very strong gel-forming property.Compare with bentonite, such mineral anti-salt property is good, with the obvious advantage.
Natural inorganic mineral gel Chang Yishui is solvent, through operations such as purification, modification and gels, is prepared from.With water slurrying, because viscosity restriction causes slurry concentration little, energy consumption is high and efficiency is low, and follow-up dehydrating causes serious hard aggregation, and nanometer effect is in earlier stage had a greatly reduced quality, and gained gel products quality significantly reduces.
Summary of the invention
The object of the invention is: a kind of preparation method of fibrous type inorganic mineral gel is provided, and method safety is simple, is easy to realize large-scale production.
Technical solution of the present invention is: fibrous type clay breeze is broken to 120-200 order, adds isopropyl alcohol and soak 4-6h, isopropyl alcohol is 1.5-2 times of clay weight; Wet-milling or pair roller extruding 3-5 time, stir and make the isopropanol suspension that concentration is the clay of 10-50 wt%; Abandon the non-clay impurity of lower floor, add lithiumation agent, mixing speed 5000-10000rpm stirs 30-60min, and described lithiumation agent is a kind of in lithium chloride, lithium nitrate, lithium hydroxide, and its addition is the 2-10% of clay siccative weight; Ore pulp is carried out to centrifugal drying, obtain fibrous type inorganic mineral gel.
Wherein, described fibrous type clay ore deposit is recessed soil or sepiolite fibre type clay ore deposit.
The invention has the advantages that:
1, take isopropyl alcohol as dispersion solvent, slurry concentration is high and viscosity is low, is conducive to improve production efficiency; Remove the required energy consumption of isopropyl alcohol low, and do not produce obvious secondary agglomeration.
2, introduce pair roller extrusion process, realize the effect that the brilliant bundle of the low-cost strengthening of fibrous type clay dissociates;
3, adopt the better lithiumation thing of performance to replace common magnesia, barium monoxide, calcium oxide gelatinizing agent, make the inorganic gel making have the features such as high viscosity, easy dispersion, product combination property is better.
4, production technology is simple and safe, and production process is easy to control, and needed raw material is cheaply easy to get, and realizes low energy consumption, low cost is prepared high-performance fiber type mineral coagulant.
The specific embodiment
Below in conjunction with embodiment, further illustrate technical solution of the present invention, these embodiment should not be understood as the restriction to technical solution.
Embodiment 1: the recessed native breeze of fibrous type is broken to 120 orders, adds isopropyl alcohol and soak 4h, isopropyl alcohol is 1.5 times of clay weight; Wet-milling, 8000rpm stirs 0.5h and makes the isopropanol suspension that concentration is the clay of 10wt%; Abandon the non-clay impurity of lower floor, with 2% of clay siccative weight, add lithium chloride, mixing speed 5000rpm stirs 60min; Ore pulp is carried out centrifugal, naturally dry, obtain recessed dust gelatin product.
Embodiment 2: fibrous type sepiolite is crushed to 160 orders, adds isopropyl alcohol and soak 5h, isopropyl alcohol is 1.8 times of clay weight; Pair roller extruding 3 times, 6000rpm stirs 1h and makes the isopropanol suspension that concentration is the clay of 30wt%; Abandon the non-clay impurity of lower floor, with 6% of clay siccative weight, add lithium nitrate, mixing speed 7500rpm stirs 45min; Ore pulp is carried out centrifugal, 100 ℃ dry, obtains sepiolite gel products.
Embodiment 3: the recessed native breeze of fibrous type is broken to 200 orders, adds isopropyl alcohol and soak 6h, isopropyl alcohol is 2 times of clay weight; Pair roller extruding 5 times, 7000rpm stirs 1h and makes the isopropanol suspension that concentration is the clay of 50 wt%; Abandon the non-clay impurity of lower floor, with 10% of clay siccative weight, add lithium hydroxide, mixing speed 10000rpm stirs 30min; Ore pulp is carried out centrifugal, 100 ℃ dry, obtains recessed dust gelatin product.
Claims (2)
1. the preparation method of fibrous type inorganic mineral gel, is characterized in that this preparation method comprises the following steps: fibrous type clay breeze is broken to 120-200 order, adds isopropyl alcohol and soak 4-6h, isopropyl alcohol is 1.5-2 times of clay weight; Wet-milling or pair roller extruding 3-5 time, stir and make the isopropanol suspension that concentration is the clay of 10-50 wt%; Abandon the non-clay impurity of lower floor, add lithiumation agent, mixing speed 5000-10000rpm stirs 30-60min, and described lithiumation agent is a kind of in lithium chloride, lithium nitrate, lithium hydroxide, and its addition is the 2-10% of clay siccative weight; Ore pulp is carried out to centrifugal drying, obtain fibrous type inorganic mineral gel.
2. the preparation method of fibrous type inorganic mineral gel according to claim 1, is characterized in that: described raw mineral materials is the fibrous type clay ore deposits such as recessed soil, sepiolite; Wherein, described fibrous type clay ore deposit is recessed soil or sepiolite fibre type clay ore deposit.
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| CN201410335431.3A CN104096520B (en) | 2014-07-15 | 2014-07-15 | The preparation method of fibrous type inorganic mineral gel |
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| CN201410335431.3A CN104096520B (en) | 2014-07-15 | 2014-07-15 | The preparation method of fibrous type inorganic mineral gel |
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| CN104096520A true CN104096520A (en) | 2014-10-15 |
| CN104096520B CN104096520B (en) | 2015-11-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426546A (en) * | 2016-09-12 | 2017-02-22 | 淮阴工学院 | Integrated continuous production type clay dissociation-modification-drying method |
| CN106544755A (en) * | 2016-10-10 | 2017-03-29 | 贵州大学 | A kind of preparation method of clay fiber |
| CN110918010A (en) * | 2019-12-06 | 2020-03-27 | 石家庄铁道大学 | Preparation method of sepiolite-graphene composite aerogel |
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- 2014-07-15 CN CN201410335431.3A patent/CN104096520B/en not_active Expired - Fee Related
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106426546A (en) * | 2016-09-12 | 2017-02-22 | 淮阴工学院 | Integrated continuous production type clay dissociation-modification-drying method |
| CN106544755A (en) * | 2016-10-10 | 2017-03-29 | 贵州大学 | A kind of preparation method of clay fiber |
| CN106544755B (en) * | 2016-10-10 | 2019-12-03 | 贵州大学 | A kind of preparation method of clay fiber |
| CN110918010A (en) * | 2019-12-06 | 2020-03-27 | 石家庄铁道大学 | Preparation method of sepiolite-graphene composite aerogel |
| CN110918010B (en) * | 2019-12-06 | 2022-02-01 | 石家庄铁道大学 | Preparation method of sepiolite-graphene composite aerogel |
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| CN104096520B (en) | 2015-11-25 |
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