CN102320618A - Clay micro/nanorization method based on high aspect ratio structure of high pressure expansion protective material - Google Patents
Clay micro/nanorization method based on high aspect ratio structure of high pressure expansion protective material Download PDFInfo
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- CN102320618A CN102320618A CN201110176554A CN201110176554A CN102320618A CN 102320618 A CN102320618 A CN 102320618A CN 201110176554 A CN201110176554 A CN 201110176554A CN 201110176554 A CN201110176554 A CN 201110176554A CN 102320618 A CN102320618 A CN 102320618A
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Abstract
The invention discloses a clay micro/nanorization method based on a high aspect ratio structure of a high pressure expansion protective material. After clay is pre-processed by fluffing, high pressure expansion with adjustable force field potency is introduced and used a disintegration force field, and clay mine micro/nanorization is realized. The method comprises the following steps of: doping water into the clay until the water content is 40-60%%, or doping sodium hexametaphosphate water solution with a mass concentration of 4% according to fineness requirements, and oppositely extruding for 2-3 times; putting pre-processed clay in a pressure resisting airtight container, heating to 120-180DEG C in an airtight manner, preserving temperature for 1-2 hours, and quickly releasing pressure to normal pressure; and naturally spreading the clay processed by the high pressure expansion, air-drying or drying and dehydrating at a low temperature to obtain micro/nano clay powder in a soft conglobation state. The water absorption property of the clay, the phase variation of water and the rapid control of the pressure field are sufficiently utilized, and the non-destructive micro/nanorization of the high aspect ratio structure of a clay crystal structure is realized.
Description
Technical field
The present invention relates to a kind of micro-nanoization of the clay method that can effectively protect material high length-diameter ratio structure, belong to natural mineral resource deep process technology field, be specifically related to the micro-nanoization method of fibrous type clay mineral based on the high pressure expansion process.
Background technology
The super-refinement of high length-diameter ratio class clay is summarized has dry method and wet method two big classes.Related prods generally makes clay mineral fiber generation relative displacement through extruding at present, thereby realizes brilliant bundle " fluffyization ".But the intense shear power that extruding is produced is prone to block recessed native fiber, and therefore simple extruding number of times and the dynamics of increasing not only can not realize high-quality micro-nanoization of clay, and can reduce the length-to-diameter ratio of fiber greatly.Relative dry method, wet method is higher to obvious reduction of high length-diameter ratio structural damage and dispersity.USP U.S. Pat. 6130179 is a dispersion agent with the ZX-I, adopts the aquation method that recessed soil is realized effectively disperseing, and is to have much representational wet processing.Morsali etc. utilize UW that recessed soil is carried out nanometer and handle and also to belong to typical wet method.The domestic gold leaf tinkling of pieces of jade etc. adopt Sodium hexametaphosphate 99 as dispersion agent, and collaborative using supersonic, water-heating has been realized super-refinement, purifying and the decolouring one step completion of recessed soil.But wet method all needs recessed soil is processed lower concentration suspension-s (≤5 %), therefore has solid-liquid separation difficulty and shortcomings such as energy consumption is big, even and if concentration≤5%, also be difficult to through ultrasonic with stir the real monocrystalline dispersion state of acquisition.
Summary of the invention
The objective of the invention is to: a kind of micro-nanoization of clay method based on high compression swelling protection material high length-diameter ratio structure is provided; Be intended to improve the micro-nanoization efficient of fibrous type clay pit; Promote quality product; The energy-saving and emission-reduction consumption reduction, thus reduce cost, really realize the industrialization of the micro-nano technology of fibrous type clay pit.
Technical solution of the present invention is: clay pit is introduced high compression swelling with adjustable field of force advantage as dissociating the field of force, or is aided with certain dispersion agent after " fluffyization " pre-treatment, and the multiple-effect unification realizes micro-nanoization of clay pit.
Micro-nanoization method based on high pressure expansible fibrous type clay pit is: the clay pit water mixing is to water cut 40-60%, or mixes the sodium hexametaphosphate solution of mass concentration 4% according to fineness requirement, pair roller extruding 2-3 time; Clay after the pre-treatment is put into withstand voltage encloses container, airtightly be heated to 120-180 ℃, be incubated after 1-2 hour, let out fast to normal pressure; Clay after the high pressure expansion process is spread out naturally, dried or the oven drying at low temperature dehydration, promptly get into the micro-nanoization clay powder of soft-agglomerated state.
The invention has the advantages that:
1, the present invention introduce have adjustable field of force advantage high compression swelling as dissociating the field of force; To contain that the clay of certain water yield is airtight to be heated to wherein water vapor; In encloses container, form high pressure; Thereby make energy even be transmitted to clay particle inside, fast pressure relief makes to accumulate in the inner energy abrupt release thereupon of clay then; Utilize that hole effect that this process forms and shock effect realize that the fibrous bundle of clay pit dissociates, dissociate between fibrous bundle and the impurity, impurity self dissociates; High compression swelling advantage is to make concentration of energy in the self-open place of clay coacervate and the thin spots such as junction of different crystal, has the advantages that to make the best use of the situation, thereby to the crystal morphology protection fully.
,Can the adequately protect crystalline structure of high length-diameter ratio of fibrous type clay pit of the present invention.
3, the present invention adopts semidrying preparation technology, and is simple, has advantage dried, wet method concurrently, and energy consumption is low and do not have " three wastes " generation, and quality product is high.
4, the present invention can be used for the clay pit of new exploitation, need not to pile Chen Fenghua.
Embodiment
Further specify technical solution of the present invention below in conjunction with specific embodiment, it is the restriction to technical solution that these embodiment should not be construed as.
Embodiment 1: selecting bentonite type attapulgite clay ore deposit is objective for implementation, wherein attapulgite content >=65%; Should recessed native ore deposit water mixing to water cut 50%, pair roller extruding 3 times; Pretreated clay is put into the withstand voltage encloses container of band quick pressure releasing device, airtightly be heated to 150 ℃, be incubated after 1.5 hours, let out fast to normal pressure; Clay after the high pressure expansion process is spread out naturally, dried, promptly get into the micro-nanoization clay powder of soft-agglomerated state.With water micro-nanoization clay powder is modulated into the recessed soil paste material of micro-nanoization of mass concentration 20%, its concave soil diameter of particle D
90≤1.5 microns, recessed native fiber length-to-diameter ratio>=20.
Embodiment 2: selecting sepiolite is objective for implementation, wherein sepiolite content >=50%; With the aqueous solution to the water cut 60% that this recessed Tu Kuang mixes the Sodium hexametaphosphate 99 of mass concentration 4%, pair roller extruding 2 times; Clay after the pre-treatment is put into the withstand voltage encloses container of band quick pressure releasing device, airtightly be heated to 120 ℃, be incubated after 2 hours quick pressure releasing; High pressure expansion process recurve soil is spread out naturally, and oven drying at low temperature dewaters, and promptly gets into the micro-nanoization sepiolite powder of soft-agglomerated state.This powder is mixed with mass concentration 10% slurry, wherein diameter of particle D
90≤3 microns, sepiolite length-to-diameter ratio>=30 wherein.
The dolomite type attapulgite clay ore deposit of the new exploitation of embodiment 3. choosings is an objective for implementation, wherein attapulgite content >=40%; This recessed Tu Kuang is mixed sodium hexametaphosphate solution to the water cut 40% of mass concentration 4%, pair roller extruding 3 times; Clay after the pre-treatment is put into the withstand voltage encloses container of being with the quick pressure releasing device, and airtight being heated to about 180 ℃ is incubated after 1 hour quick pressure releasing; High pressure expansion process recurve soil is spread out naturally, dried, promptly get into the recessed native powder of micro-nanoization of soft-agglomerated state.This powder is mixed with the slurry of mass concentration 10%, wherein diameter of particle D
90≤2 microns, attapulgite length-to-diameter ratio>=25 wherein.
Claims (2)
1. protect micro-nanoization of the clay method of material high length-diameter ratio structure based on high compression swelling; It is characterized in that: clay pit is after " fluffyization " pre-treatment; Introducing has the high compression swelling of adjustable field of force advantage as dissociating the field of force; Or being aided with certain dispersion agent, the multiple-effect unification realizes micro-nanoization of clay pit; Concrete steps are: the clay pit water mixing is to water cut 40-60%, or mixes the sodium hexametaphosphate solution of mass concentration 4% according to fineness requirement, pair roller extruding 2-3 time; Clay after the pre-treatment is put into withstand voltage encloses container, airtightly be heated to 120-180 ℃, be incubated after 1-2 hour, let out fast to normal pressure; Clay after the high pressure expansion process is spread out naturally, dried or the oven drying at low temperature dehydration, must become the micro-nanoization clay powder of soft-agglomerated state.
2. micro-nanoization of the clay method based on high compression swelling protection material high length-diameter ratio structure according to claim 1, it is characterized in that: clay pit is attapulgite clay or sepiolite fibre type clay pit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110176554 CN102320618B (en) | 2011-06-28 | 2011-06-28 | Clay micro/nanorization method based on high aspect ratio structure of high pressure expansion protective material |
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| CN 201110176554 CN102320618B (en) | 2011-06-28 | 2011-06-28 | Clay micro/nanorization method based on high aspect ratio structure of high pressure expansion protective material |
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| CN102320618B CN102320618B (en) | 2013-06-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085897A (en) * | 2014-07-04 | 2014-10-08 | 淮阴工学院 | Micro-nanocrystallization treatment method for fiber-type clay |
| CN107126928A (en) * | 2017-07-06 | 2017-09-05 | 淮阴工学院 | A kind of adsorbent that two-dimensional metallic organic backbone separating low concentration methane is combined based on recessed native nano stick crystal and preparation method thereof |
| CN107233861A (en) * | 2016-03-28 | 2017-10-10 | 深圳市中兴生态环保研究院 | A kind of micro-nano mineral material of purification of heavy metal sludge and preparation method thereof |
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| CN101379146A (en) * | 2005-12-23 | 2009-03-04 | 欧洲圣戈班技术结构公司 | Method for preparing layered nanoparticles, and nanoparticles obtained |
| US20100222482A1 (en) * | 2006-09-26 | 2010-09-02 | Jang Bor Z | Mass production of nano-scaled platelets and products |
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2011
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Patent Citations (2)
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| CN101379146A (en) * | 2005-12-23 | 2009-03-04 | 欧洲圣戈班技术结构公司 | Method for preparing layered nanoparticles, and nanoparticles obtained |
| US20100222482A1 (en) * | 2006-09-26 | 2010-09-02 | Jang Bor Z | Mass production of nano-scaled platelets and products |
Non-Patent Citations (1)
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| 金叶玲等: "超声水热法制备高纯超细凹凸棒石黏土", 《非金属矿》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085897A (en) * | 2014-07-04 | 2014-10-08 | 淮阴工学院 | Micro-nanocrystallization treatment method for fiber-type clay |
| CN104085897B (en) * | 2014-07-04 | 2015-10-28 | 淮阴工学院 | The micro-nanoization treatment process of fibrous type clay |
| CN107233861A (en) * | 2016-03-28 | 2017-10-10 | 深圳市中兴生态环保研究院 | A kind of micro-nano mineral material of purification of heavy metal sludge and preparation method thereof |
| CN107126928A (en) * | 2017-07-06 | 2017-09-05 | 淮阴工学院 | A kind of adsorbent that two-dimensional metallic organic backbone separating low concentration methane is combined based on recessed native nano stick crystal and preparation method thereof |
| CN107126928B (en) * | 2017-07-06 | 2019-08-06 | 淮阴工学院 | A kind of adsorbent and preparation method thereof based on the compound two-dimensional metallic organic backbone separating low concentration methane of recessed native nano stick crystal |
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| CN102320618B (en) | 2013-06-26 |
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Effective date of registration: 20171128 Address after: 223001 Beijing North Road, Jiangpu District, Huaian City, Jiangsu Province, No. 103 Patentee after: Jiangpu Huaian District Science and technology transformation service center Address before: 223001 Beijing, Qinghe District, Jiangsu, North Road, No. 89, No. Patentee before: Huaijin Polytechnical College |
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Effective date of registration: 20220119 Address after: 223001 No. 58, Qinghe South Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee after: Huai'an qingjiangpu district market supervision comprehensive service center Address before: 223001 No.103, Beijing North Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee before: Jiangpu Huaian District Science and technology transformation service center |