CN112408891B - Preparation process of modified environment-friendly mud liquid - Google Patents
Preparation process of modified environment-friendly mud liquid Download PDFInfo
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- CN112408891B CN112408891B CN202011426257.5A CN202011426257A CN112408891B CN 112408891 B CN112408891 B CN 112408891B CN 202011426257 A CN202011426257 A CN 202011426257A CN 112408891 B CN112408891 B CN 112408891B
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- bentonite
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/44—Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
Abstract
The invention discloses a preparation process of modified environment-friendly mud liquor, belonging to the field of modification and manufacturing of bentonite, and the environment-friendly mud liquor is prepared from the following components in parts by mass: 50-70 parts of bentonite, 10-15 parts of carboxymethyl cellulose, 15-20 parts of graphene oxide, 15-20 parts of sodium sulfate, 8-12 parts of nano titanium dioxide and 8-12 parts of deionized water; according to the invention, carboxymethyl cellulose and graphene oxide are adopted to modify bentonite powder to obtain reticular bentonite, so that the bentonite has better anti-seepage performance; the nano titanium dioxide is added into the primarily modified mud liquid, and the price of the nano titanium dioxide is low, so that the preparation cost of the invention is low, and the prepared modified environment-friendly mud liquid has the advantages of high mud making rate, small water precipitation rate and high volume expansion ratio while the cost is low.
Description
Technical Field
The invention belongs to the field of modification and manufacture of bentonite, and particularly relates to a preparation process of modified environment-friendly mud liquor.
Background
It is well known that bentonite is an important non-metallic mineral resource. The total storage capacity of the world bentonite is about thirteen tons, China is second to the United states and is the second storage capacity of the world bentonite, and the national bentonite is mainly concentrated in northeast and east coastal areas. Bentonite has no fixed structural formula, is not a pure substance, is a mineral containing hydrous aluminosilicate, and the main component of the mineral is montmorillonite, so the bentonite is often called montmorillonite.
Bentonite is also known as omnipotent because of its properties. Sodium bentonite and calcium bentonite are frequently used, but both sodium bentonite and calcium bentonite belong to natural bentonite, and the performance is not optimal in the using process, so that sodium salt and lithium salt are frequently added into the sodium bentonite or the calcium bentonite for modification by a person skilled in the art, so that the bentonite can meet wider requirements. In the grouting construction, the rheological property of the bentonite slurry is the main property, the bentonite slurry can be used as a grouting material and has the characteristic of low cost, and most modified slurry has higher cost, so that the research on the slurry with high slurry making rate, small water separation rate, high volume expansion factor and low cost is little.
Disclosure of Invention
Aiming at the blank of the research on the mud liquid with high slurrying rate, small water separation rate, high volume expansion multiple and low cost in the prior art, the invention provides the modified environment-friendly mud liquid with low cost, and the mud liquid with high slurrying rate, small water separation rate, high volume expansion multiple and low cost is obtained by modifying multiple components such as graphene oxide, sodium sulfate, nano titanium dioxide and the like.
The invention is realized by the following steps:
the preparation process of the modified environment-friendly mud liquor comprises the following steps of:
50-70 parts of bentonite, 10-15 parts of carboxymethyl cellulose, 15-20 parts of graphene oxide, 15-20 parts of sodium sulfate, 8-12 parts of nano titanium dioxide and 8-12 parts of deionized water;
the preparation method specifically comprises the following steps:
removing water in bentonite by adopting a freeze-drying method for 50-70 parts of bentonite, crushing the freeze-dried bentonite, grinding the crushed massive bentonite, and sieving to obtain sieved bentonite powder;
step two, adding 15-20 parts of sodium sulfate and 10-15 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches the temperature of 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
adding 15-20 parts of graphene oxide into the sodium-modified carboxymethyl cellulose-bentonite, ultrasonically stirring for 1-2 hours, and uniformly stirring to obtain a preliminarily modified slurry;
and step four, adding 8-12 parts of nano titanium dioxide into the primarily modified mud liquid, dispersing the nano titanium dioxide and 8-12 parts of deionized water in ultrasound, adding the nano titanium dioxide into the primarily modified mud liquid, stirring at the high temperature of 200 +/-20 ℃, stirring for 3-5 hours, and preserving heat for 1-2 hours after uniformly stirring.
Further, the mass part ratio of the graphene oxide to the sodium sulfate is 1: 1.
Furthermore, the particle size of the bentonite powder is 200-250 meshes.
Furthermore, the particle size of the nano titanium dioxide is 80-100 nanometers.
Further, the mass ratio of the nano titanium dioxide to the deionized water is 1: 1.
The beneficial effects of the invention and the prior art are as follows:
according to the invention, carboxymethyl cellulose and graphene oxide are adopted to modify bentonite powder to obtain reticular bentonite, so that the reticular bentonite has better anti-seepage performance; the nano titanium dioxide is added into the primarily modified mud liquid, and the price of the nano titanium dioxide is low, so that the preparation cost of the invention is low, and the prepared modified environment-friendly mud liquid has the advantages of high mud making rate, small water precipitation rate and high volume expansion ratio while the cost is low.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention more clear, the present invention is further described in detail by referring to examples below. It should be noted that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The preparation method of the modified environment-friendly mud solution in the embodiment is as follows:
step one, removing water in 55 parts of bentonite by adopting a freeze-drying method, crushing the freeze-dried bentonite, grinding the crushed blocky bentonite, and sieving to obtain sieved bentonite powder;
adding 17 parts of sodium sulfate and 12 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
adding 17 parts of graphene oxide into the sodium-modified carboxymethyl cellulose-bentonite, ultrasonically stirring for 1-2 hours, and uniformly stirring to obtain a primarily modified mud solution;
and step four, adding 9 parts of nano titanium dioxide into the primarily modified mud liquid, dispersing the nano titanium dioxide and 9 parts of deionized water in ultrasound, adding the nano titanium dioxide into the primarily modified mud liquid, stirring at a high temperature of 200 +/-20 ℃, stirring for 3-5 hours, uniformly stirring, and then preserving heat for 1-2 hours.
Comparative example 1
The preparation method of the modified environment-friendly mud liquid in the embodiment comprises the following steps:
step one, removing water in 55 parts of bentonite by adopting a freeze-drying method, crushing the freeze-dried bentonite, grinding the crushed blocky bentonite, sieving, and taking sieved bentonite powder;
adding 17 parts of sodium sulfate and 12 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
and step three, adding 9 parts of deionized water into the sodium-modified carboxymethyl cellulose-bentonite, dispersing in ultrasound, adding into the primarily modified slurry, stirring at a high temperature of 200 +/-20 ℃, stirring for 3-5 hours, uniformly stirring, and keeping the temperature for 1-2 hours.
The difference between the comparative example 1 and the example 1 is that 17 parts of graphene oxide and 9 parts of nano titanium dioxide are not added, and the slurry prepared in the comparative example 1 and the example 1 are subjected to a test experiment, and the experimental results are shown in table one.
Watch 1
| Water separation rate | Slurry production rate | |
| Example 1 | Less than 5 percent | ≥16 |
| Comparative example 1 | 18% | ＜10 |
The mud liquid of the invention has the advantages of high mud making rate, small water separating rate and high volume expansion factor.
Example 2
The preparation method of the modified environment-friendly mud solution in the embodiment is as follows:
step one, removing water in bentonite by adopting a freeze-drying method for 50 parts of bentonite, crushing the freeze-dried bentonite, grinding the crushed blocky bentonite, and sieving to obtain sieved bentonite powder;
step two, adding 15 parts of sodium sulfate and 10 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
adding 15 parts of graphene oxide into the sodium-modified carboxymethyl cellulose-bentonite, ultrasonically stirring for 1-2 hours, and uniformly stirring to obtain a primarily modified mud solution;
and step four, adding 8 parts of nano titanium dioxide into the primarily modified mud liquid, dispersing the nano titanium dioxide and 8 parts of deionized water in ultrasound, adding the nano titanium dioxide into the primarily modified mud liquid, stirring at a high temperature of 200 +/-20 ℃, stirring for 3-5 hours, uniformly stirring, and then preserving heat for 1-2 hours.
Example 3
The preparation method of the modified environment-friendly mud liquid in the embodiment comprises the following steps:
step one, removing water in bentonite by adopting a freeze-drying method for 70 parts of bentonite, crushing the freeze-dried bentonite, grinding the crushed blocky bentonite, and sieving to obtain sieved bentonite powder;
step two, adding 20 parts of sodium sulfate and 15 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
adding 20 parts of graphene oxide into the sodium-modified carboxymethyl cellulose-bentonite, ultrasonically stirring for 1-2 hours, and uniformly stirring to obtain a primarily modified mud solution;
and step four, adding 12 parts of nano titanium dioxide into the primarily modified mud liquid, dispersing the nano titanium dioxide and 12 parts of deionized water in ultrasound, adding the nano titanium dioxide into the primarily modified mud liquid, stirring at a high temperature of 200 +/-20 ℃, stirring for 3-5 hours, uniformly stirring, and then preserving heat for 1-2 hours.
Example 4
The preparation method of the modified environment-friendly mud solution in the embodiment is as follows:
step one, removing water in bentonite by adopting a freeze-drying method for 60 parts of bentonite, crushing the freeze-dried bentonite, grinding the crushed blocky bentonite, and sieving to obtain sieved bentonite powder;
step two, adding 18 parts of sodium sulfate and 12 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
adding 18 parts of graphene oxide into the sodium-modified carboxymethyl cellulose-bentonite, ultrasonically stirring for 1-2 hours, and uniformly stirring to obtain a primarily modified mud solution;
and step four, adding 10 parts of nano titanium dioxide into the primarily modified mud liquid, dispersing the nano titanium dioxide and 10 parts of deionized water in ultrasound, adding the nano titanium dioxide into the primarily modified mud liquid, stirring at a high temperature of 200 +/-20 ℃, stirring for 3-5 hours, uniformly stirring, and then preserving heat for 1-2 hours.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (5)
1. The preparation process of the modified environment-friendly mud solution is characterized in that the environment-friendly mud solution is prepared from the following components in parts by mass:
50-70 parts of bentonite, 10-15 parts of carboxymethyl cellulose, 15-20 parts of graphene oxide, 15-20 parts of sodium sulfate, 8-12 parts of nano titanium dioxide and 8-12 parts of deionized water;
the preparation method of the environment-friendly mud solution comprises the following steps:
removing water in bentonite by adopting a freeze-drying method for 50-70 parts of bentonite, crushing the freeze-dried bentonite, grinding the crushed massive bentonite, and sieving to obtain sieved bentonite powder;
step two, adding 15-20 parts of sodium sulfate and 10-15 parts of carboxymethyl cellulose into bentonite powder, uniformly stirring at the temperature of 40-50 ℃, heating while stirring, stirring for 1-2 hours when the temperature reaches 40-50 ℃, uniformly stirring, and then preserving heat for 1-2 hours to obtain sodium-modified carboxymethyl cellulose-bentonite;
adding 15-20 parts of graphene oxide into the sodium-modified carboxymethyl cellulose-bentonite, ultrasonically stirring for 1-2 hours, and uniformly stirring to obtain a primarily modified slurry;
and step four, adding 8-12 parts of nano titanium dioxide into the primarily modified slurry, dispersing the nano titanium dioxide and 8-12 parts of deionized water in ultrasound, adding the dispersed nano titanium dioxide into the primarily modified slurry, stirring at a high temperature of 200 +/-20 ℃ for 3-5 hours, and keeping the temperature for 1-2 hours after stirring uniformly.
2. The preparation process of the modified environment-friendly mud solution according to claim 1, wherein the mass part ratio of the graphene oxide to the sodium sulfate is 1: 1.
3. The process for preparing the modified environment-friendly type slurry liquid according to claim 1, wherein the particle size of the bentonite powder is 200-250 meshes.
4. The preparation process of the modified environment-friendly mud solution as claimed in claim 1, wherein the particle size of the nano titanium dioxide is 80-100 nm.
5. The preparation process of the modified environment-friendly mud solution as claimed in claim 1, wherein the mass ratio of the nano titanium dioxide to the deionized water is 1: 1.
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| CN112408891B true CN112408891B (en) | 2022-07-19 |
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| CN114208623B (en) * | 2021-12-15 | 2023-05-16 | 贵州欧瑞欣合环保股份有限公司 | Flexible artificial soil and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601517A (en) * | 2017-08-01 | 2018-01-19 | 洛阳理工学院 | A kind of low grade calcium-base bentonite prepares the bentonitic method of inorganic pulping |
| CN108841365A (en) * | 2018-07-06 | 2018-11-20 | 定远县益徽科技服务有限公司 | A kind of drilling mud fluid and preparation method thereof containing sodium bentonite |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10081751B2 (en) * | 2016-04-01 | 2018-09-25 | Saudi Arabian Oil Company | Modification of bentonite properties for drilling fluids |
| CN107446558A (en) * | 2017-08-01 | 2017-12-08 | 洛阳理工学院 | A kind of preparation method of drilling fluid inorganic bentonite |
| US11718534B2 (en) * | 2019-04-23 | 2023-08-08 | Elementis Specialties, Inc. | Slurry compositions containing mixed branched alkyl organoclay compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601517A (en) * | 2017-08-01 | 2018-01-19 | 洛阳理工学院 | A kind of low grade calcium-base bentonite prepares the bentonitic method of inorganic pulping |
| CN108841365A (en) * | 2018-07-06 | 2018-11-20 | 定远县益徽科技服务有限公司 | A kind of drilling mud fluid and preparation method thereof containing sodium bentonite |
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Effective date of registration: 20220623 Address after: 212441 Xilicun 109, Tianwang Town, Jurong City, Zhenjiang City, Jiangsu Province Applicant after: JURONG KANGTAI BENTONITE Co.,Ltd. Address before: 211103 room 318, building 9, fulicheng, 277 Dongqi Road, Jiangning District, Nanjing City, Jiangsu Province Applicant before: Jiangsu Kangtai New Material Technology Co.,Ltd. |
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