CN102653637B - Method for improving expansion character of bentonite in brine - Google Patents
Method for improving expansion character of bentonite in brine Download PDFInfo
- Publication number
- CN102653637B CN102653637B CN2011100499834A CN201110049983A CN102653637B CN 102653637 B CN102653637 B CN 102653637B CN 2011100499834 A CN2011100499834 A CN 2011100499834A CN 201110049983 A CN201110049983 A CN 201110049983A CN 102653637 B CN102653637 B CN 102653637B
- Authority
- CN
- China
- Prior art keywords
- bentonite
- expansion character
- brine
- wilkinite
- diatomite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910000278 bentonite Inorganic materials 0.000 title claims abstract description 25
- 239000000440 bentonite Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000012267 brine Substances 0.000 title abstract 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012266 salt solution Substances 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003607 modifier Substances 0.000 abstract 1
- 229940092782 bentonite Drugs 0.000 description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 3
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229940080314 sodium bentonite Drugs 0.000 description 3
- 229910000280 sodium bentonite Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- -1 salt ion Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention relates to a method for improving the expansion character of bentonite in brine. The method is characterized in that: kieselguhr is used as a doping modifier, a physical doping technique is adopted, and a certain quality of kieselguhr is uniformly doped in a bentonite raw material for preparing a bentonite water-proof or impermeable material to prepare a kieselguhr-doped modified bentonite water-proof raw material. The method provided by the invention can obviously improve the expansion character of bentonite in brine, can further expand the use value and application field of the bentonite water-proof material when used for preparing the bentonite water-proof material, and has the advantages of simplicity, lower production cost and easiness in implementation of industrialization.
Description
Technical field
The present invention relates to a kind of method that improves wilkinite expansion character in salt solution, belong to mineral material and technical field of mineral processing.
Background technology
One of the GCL that rises in recent ten years is the bentonite base mineral material, and even the most important progress in nonmetallic mineral material field.This functional materials takes full advantage of bentonitic natural high-hydroscopicity and expansion characteristics; be widely used in that underground works (subway, tunnel, heavy construction basis etc.), municipal wastes are filled out, the fields such as hydro project and antiseep of artificial lake; have the wide market space and good development prospect; remarkable in economical benefits not only, and have huge social benefit in fields such as environment protection, ecological construction, water savings.
But the maximum deficiency that present GCL product both domestic and external exists is, its water resistance and endurance quality significantly descend (show expansion character descends and permeability coefficient increase) under ionic concn or the higher environment of salt concn.Due to this shortcoming, affected to a great extent the further expansion of bentonite waterproof material Application Areas, especially the applying of the higher field of the salinity such as hydro project, sewage treatment project, New Type of Bentonite waterproof (oozing) material that needs research and development to have the high capability of anti-salt characteristic.This is not only the deficiency that present Chinese bentonite waterproof (oozing) material exists, and is also the difficult problem that in world wide, bentonite waterproof (oozing) material exists.Solving the key that bentonite base waterproof (oozing) matrix material water resistance and endurance quality in salt solution descend is to improve the anti-salt property of bentonite material, because wilkinite is crucial starting material or the base mateiral of bentonite base waterproof (oozing) matrix material.
The present invention is directed to existing bentonite waterproof or impervious material degradation deficiency under water resistance and endurance quality in saltwater environment, proposes a kind of method that adopts physical doping modification technology raising wilkinite expansion character in salt solution.
Summary of the invention
Diatomite is the unformed silicoide material of a kind of porous of natural output, its pore structure is regular distribution, aperture be several nanometers to tens nanometer, be a kind of natural nano duct silicoide raw material, have larger specific surface area and stronger absorption mineral ion and organic ability.Content of the present invention is take diatomite as the doping vario-property agent, adopts the physical doping technology, in the bentonite material for preparing bentonite waterproof or impervious material, evenly mixes the diatomite of certain mass, makes a kind of bentonite waterproof material feedstock of diatomite doping vario-property.
Its processing step is:
According to the quality of bentonite material, take a certain amount of diatomite powder and join in bentonite material, use at normal temperatures machinery or airflow mixer dry mixed even.
Diatomite described in above-mentioned processing step, is characterized in that wherein diatom content or unformed SiO
2Content is not less than 80%, and water ratio is not more than 10%; Diatomaceous incorporation is 1.0%～15.0% of wilkinite quality.
The wilkinite of the above-mentioned diatomite doping vario-property mechanism that expansion character and barrier performance improve in salt solution is, diatomaceous silica nano-pore road can have precedence over free metal ion in wilkinite absorption salt solution, thereby has avoided cationic permutoid reaction between salt ion and wilkinite crystal layer.
With the inventive method, can significantly improve the expansion character of wilkinite in salt solution, use it for and prepare use value and the Application Areas that the bentonite waterproof material can further expand the bentonite waterproof material, and method is simple, and production cost is lower, easily realizes industrialization.
Embodiment
Embodiment 1:
Dry sodium bentonite 200g, the diatomite 10g of diatom content 85%, water ratio 6.5%, stir in laboratory room small-sized rotor-type agitator, obtain the wilkinite sample I of diatomite doping vario-property.
Embodiment 2
Dry sodium bentonite 200g, the diatomite 13g of diatom content 85%, water ratio 6.5%, stir in laboratory room small-sized rotor-type agitator, obtain the wilkinite sample II of diatomite doping vario-property.
Embodiment 3
Dry sodium bentonite 200g, the diatomite 16g of diatom content 85%, water ratio 6.5%, stir in laboratory room small-sized rotor-type agitator, obtain the wilkinite sample III of diatomite doping vario-property.
It is the CaCl of 1.0g/L in concentration that example I, II, III sample reach the not wilkinite sample (0) of doping vario-property
2The time dependent measurement result of exponent of expansion in the aqueous solution is listed in table 1.
Table 1 embodiment sample is the CaCl of 1.0g/L in concentration
2Exponent of expansion in the aqueous solution
Claims (1)
1. a method that improves wilkinite expansion character in salt solution, is characterized in that take diatomite as the doping vario-property agent, in the bentonite material for preparing bentonite waterproof or impervious material, evenly mixes 1.0%～15.0% diatomite of wilkinite quality; This diatomaceous diatom content or unformed SiO
2Content is not less than 80%, and water ratio is not more than 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100499834A CN102653637B (en) | 2011-03-02 | 2011-03-02 | Method for improving expansion character of bentonite in brine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100499834A CN102653637B (en) | 2011-03-02 | 2011-03-02 | Method for improving expansion character of bentonite in brine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102653637A CN102653637A (en) | 2012-09-05 |
| CN102653637B true CN102653637B (en) | 2013-11-20 |
Family
ID=46729377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100499834A Expired - Fee Related CN102653637B (en) | 2011-03-02 | 2011-03-02 | Method for improving expansion character of bentonite in brine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102653637B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000294B (en) * | 2016-07-04 | 2019-04-30 | 三峡大学 | A kind of high expansion low-shrinkage bentonite and preparation method |
| CN107686670B (en) * | 2017-09-05 | 2020-09-18 | 广西诗瑞科技有限公司 | High-expansion-performance environment-friendly bentonite and preparation method thereof |
| CN114436617A (en) * | 2020-11-06 | 2022-05-06 | 必照岩土科技(南京)有限公司 | Lithium magnesium silicate bentonite composite nano material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053912A (en) * | 1990-02-10 | 1991-08-21 | 嵊县硅藻土应用研究所 | method for purifying diatomite |
| CN1765852A (en) * | 2005-09-16 | 2006-05-03 | 杨永康 | Nourishing water-loss reducer |
| CN1817916A (en) * | 2006-03-23 | 2006-08-16 | 中国地质大学（武汉） | Composite materials with high water absorbing and retaining performances containing diatomite and production thereof |
| JP2006291085A (en) * | 2005-04-13 | 2006-10-26 | Mitsuaki Sawano | Additive for anti-fouling coating |
| CN201746859U (en) * | 2010-08-20 | 2011-02-16 | 中国非金属矿工业公司 | Salt-resistant anti-pollution type BWC |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL157437A0 (en) * | 2003-07-14 | 2004-03-28 | Superseal Ltd Superseal Ltd | Hydrophobic aggregate and applications thereof |
-
2011
- 2011-03-02 CN CN2011100499834A patent/CN102653637B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053912A (en) * | 1990-02-10 | 1991-08-21 | 嵊县硅藻土应用研究所 | method for purifying diatomite |
| JP2006291085A (en) * | 2005-04-13 | 2006-10-26 | Mitsuaki Sawano | Additive for anti-fouling coating |
| CN1765852A (en) * | 2005-09-16 | 2006-05-03 | 杨永康 | Nourishing water-loss reducer |
| CN1817916A (en) * | 2006-03-23 | 2006-08-16 | 中国地质大学（武汉） | Composite materials with high water absorbing and retaining performances containing diatomite and production thereof |
| CN201746859U (en) * | 2010-08-20 | 2011-02-16 | 中国非金属矿工业公司 | Salt-resistant anti-pollution type BWC |
Non-Patent Citations (6)
| Title |
|---|
| 孔维安等.膨润土在水溶液中的膨胀性能研究.《非金属矿》.2010,第33卷(第1期), |
| 王利剑等.硅藻土提纯及其吸附性能研究.《非金属矿》.2006,第29卷(第2期), |
| 王艳玲等.硅藻土矿的加工与应用技术现状.《中国非金属矿工业导刊》.2004,(第41期), |
| 硅藻土提纯及其吸附性能研究;王利剑等;《非金属矿》;20060330;第29卷(第2期);3-5 * |
| 硅藻土矿的加工与应用技术现状;王艳玲等;《中国非金属矿工业导刊》;20041231(第41期);44-47 * |
| 膨润土在水溶液中的膨胀性能研究;孔维安等;《非金属矿》;20100131;第33卷(第1期);42-44 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102653637A (en) | 2012-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102059095B (en) | Method for preparing graphene composite material adsorbing polycyclic aromatic hydrocarbon pollutants | |
| CN102653637B (en) | Method for improving expansion character of bentonite in brine | |
| CN104004525A (en) | Soil body stabilizer | |
| CN105038806A (en) | High-molecular organic soil solidifying agent and synthetic method of same | |
| CN102976680B (en) | A kind of pervious concrete | |
| CN107973589A (en) | A kind of sponge city water-permeable brick | |
| CN101712583A (en) | Method for preparing laminated clay modified ammonification lignin fertilizer | |
| CN102923985A (en) | Method using lithium bentonite as cement product additive | |
| CN104402350A (en) | Raw soil building material modification method and method for preparation of building block by use of modified raw soil | |
| Zhang et al. | High-strength and self-degradable sodium alginate/polyacrylamide preformed particle gels for conformance control to enhance oil recovery | |
| CN105330334A (en) | Preparation method of silane modified concrete internal curing agent | |
| CN104341799A (en) | Fluorine-containing acrylic ester polymer-modified nano silicon dioxide scrubbing oil system, and preparation method and application thereof | |
| Goswami et al. | Influence of fly ash and lime on plasticity characteristics of residual lateritic soil | |
| CN104974763B (en) | Compound earthen ruins reinforcement material and the method for reinforcing earthen ruins | |
| CN103214224A (en) | Compound stabilizing method for silty soil in Yellow River flooded areas | |
| CN106396575B (en) | A kind of nitrogen fertilizer slow-releasing type plants raw rubber gel material and preparation method thereof | |
| Modmoltin et al. | Influence of salts on strength of cement-treated clays | |
| CN102030495A (en) | Cement and soil composite addictive based on impermeable function | |
| CN105344318A (en) | Active carbon composite material for water purification, and preparation method thereof | |
| CN202390861U (en) | Earthwork liner suitable for mineral environment containing multivalent cations | |
| Liu et al. | Study on the microstructure feature and strength mechanism of the Tien Lake peat soil | |
| CN106396550A (en) | Concrete special for ecological pervious pavement as well as preparation method and application thereof | |
| CN108529946A (en) | High-strength lightweight concrete and preparation method thereof | |
| CN108069681A (en) | soil stabilizer | |
| CN110156488A (en) | A kind of high intensity antibacterial environment protection water-permeable brick and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20190302 |