CN112763375A - Method for determining content of diatomite in diatom ooze wall material - Google Patents
Method for determining content of diatomite in diatom ooze wall material Download PDFInfo
- Publication number
- CN112763375A CN112763375A CN202110228867.2A CN202110228867A CN112763375A CN 112763375 A CN112763375 A CN 112763375A CN 202110228867 A CN202110228867 A CN 202110228867A CN 112763375 A CN112763375 A CN 112763375A
- Authority
- CN
- China
- Prior art keywords
- diatomite
- diatom ooze
- mass
- wall material
- ooze wall
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses a method for determining the content of diatomite in diatom ooze wall materials, which is characterized in that the content of silicon dioxide is obtained by drying to remove moisture, burning to remove organic components, removing silicate with dilute hydrochloric acid and removing calcified salt with dilute sulfuric acid, and weighing and calculating, so that the content of the diatomite is obtained.
Description
Technical Field
The invention belongs to the field of production of diatom ooze wall materials, and particularly relates to a method for determining the content of diatomite in diatom ooze wall materials.
Background
Diatomite is a biogenic siliceous sedimentary rock, the main component of the diatomite is SiO2, the diatomite has the characteristics of light weight, porosity, large specific surface area, high chemical stability and the like, and the surface of particles of the diatomite is generally charged and has good adsorption performance. Therefore, the air purifier has the functions of purifying air, humidifying breath, repelling dust, resisting bacteria, deodorizing, preventing fire, retarding flame, absorbing sound, reducing noise and the like, and improving the living environment. With the continuous improvement of living standard of people and the higher and higher requirements on living environment, the diatom ooze wall material added with the diatomite is gradually used as an indoor wall decoration material by people. The diatom ooze mainly comprises diatomite, basic powder, additives, aggregate and other components, and is composed of SiO2, various metal silicates and organic matters from the aspect of chemical substance attributes.
The invention discloses a method for measuring the content of diatomite in a diatom ooze wall material, which is disclosed by the patent with the application number of CN201410625223.7, and the method adopts step-by-step heat treatment to remove moisture, organic and volatile components in a sample, then uses pyrophosphoric acid to dissolve silicate in the sample at a specific temperature, and after washing, the rest is SiO2 to be measured, so that the content of the diatomite can be detected more accurately, truly and reliably. The method simplifies the operation steps, and the used equipment is cheap and easy to obtain, and the method is scientific and reasonable and has strong operability. By comparison with samples of known content, the recovery rate is high and the results are satisfactory.
The above patent fails to treat calcifications in the diatom ooze coating, which may cause calcifications in the precipitate, affecting the accuracy of the measurement result, and the high concentration of pyrophosphoric acid is likely to affect the environment, and if the dosage is large, the reaction is incomplete, and the environment and water quality are affected after the discharge.
Disclosure of Invention
Aiming at the problems, the invention adopts the following technical scheme:
a method for determining the content of diatomite in diatom ooze wall materials comprises the following steps:
1) weighing 100ml of diatom ooze wall material coating, drying and bonding the diatom ooze wall material coating into blocks until moisture is removed, and obtaining the dried diatom ooze wall material coating;
2) weighing the mass of the diatom ooze wall material coating, and recording the mass as a;
3) grinding the block paint into powder, pouring the powder into a crucible for burning, and removing organic components;
4) putting all the burned powder into a beaker, adding a proper amount of dilute hydrochloric acid, heating to 120 ℃, continuously stirring, washing with clear water, filtering, and putting into a crucible to dry the surface moisture to obtain a coarse diatomite sample;
5) placing the coarse diatomite sample into a beaker again, adding a proper amount of dilute sulfuric acid, stirring, washing with clear water to be neutral, filtering, and placing into a crucible to dry the surface moisture to obtain silicon dioxide precipitate in the diatomite;
6) weighing the mass of the silicon dioxide precipitate, and recording the mass as b;
7) the content of silica in the diatomaceous earth was calculated, thereby obtaining the content of diatomaceous earth.
Preferably, the drying condition in the step 1) is 110-120 ℃, and the drying time is 2.5-3 h.
Preferably, the burning condition in the step 3) is 500-600 ℃, and the burning time is 2-3 h.
Preferably, the concentration of the dilute hydrochloric acid in the step 4) is 5-8% of the dilute hydrochloric acid by mass fraction.
Preferably, the crucible drying condition in the step 4) is 250-300 ℃, and the drying time is 1 h.
Preferably, the concentration of the dilute sulfuric acid in the step 5) is 10-15% of the dilute sulfuric acid by mass fraction.
Preferably, the crucible drying condition in the step 5) is 300-350 ℃, and the drying time is 2 h.
Compared with the prior art, the invention has the outstanding characteristics and beneficial effects that:
1. the content of the silicon dioxide is obtained by drying to remove moisture, burning to remove organic components, removing silicate by using dilute hydrochloric acid and calcified salt by using dilute sulfuric acid, and weighing and calculating, so that the content of the diatomite is obtained, and the measuring method is simple;
2. according to the method, the diatomite is directly measured by the silicon dioxide, the accuracy is high, impurities such as silicate, calcification and the like in the diatomite can be completely removed by removing the impurities twice by using the dilute hydrochloric acid and the dilute sulfuric acid, the intermediate reactant is a conventional reactant, and the cost is low.
Detailed Description
In order to make the present invention more understandable to those skilled in the art, the following embodiment 1 of the present invention is further provided with a method for determining a content of diatomaceous earth in a diatom ooze wall material, wherein the method for determining the content of diatomaceous earth in the diatom ooze wall material comprises the following steps:
1) weighing 100ml of diatom ooze wall material coating, drying and bonding the diatom ooze wall material coating into blocks until moisture is removed, and obtaining the dried diatom ooze wall material coating;
2) weighing the mass of the diatom ooze wall material coating, and recording the mass as a;
3) grinding the block paint into powder, pouring the powder into a crucible for burning, and removing organic components;
4) putting all the burned powder into a beaker, adding a proper amount of dilute hydrochloric acid, heating to 120 ℃, continuously stirring, washing with clear water, filtering, and putting into a crucible to dry the surface moisture to obtain a coarse diatomite sample;
5) placing the coarse diatomite sample into a beaker again, adding a proper amount of dilute sulfuric acid, stirring, washing with clear water to be neutral, filtering, and placing into a crucible to dry the surface moisture to obtain silicon dioxide precipitate in the diatomite;
6) weighing the mass of the silicon dioxide precipitate, and recording the mass as b;
7) the content of silica in the diatomaceous earth was calculated, thereby obtaining the content of diatomaceous earth.
The drying condition in the step 1) is 110-120 ℃, and the drying lasts for 2.5-3 h; the burning condition in the step 3) is 500-600 ℃, and the burning is carried out for 2-3 h; the concentration of the dilute hydrochloric acid in the step 4) is 5-8% of the dilute hydrochloric acid by mass; the crucible drying condition in the step 4) is 250-300 ℃, and the drying time is 1 h; the concentration of the dilute sulfuric acid in the step 5) is 10-15% of the mass fraction of the dilute sulfuric acid; the crucible drying condition in the step 5) is 300-350 ℃, and the drying time is 2 h.
The above calculation directly obtained the content of silica in terms of (b/a)% to obtain the content of diatomaceous earth.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A method for measuring the content of diatomite in diatom ooze wall materials is characterized by comprising the following steps:
1) weighing 100ml of diatom ooze wall material coating, drying and bonding the diatom ooze wall material coating into blocks until moisture is removed, and obtaining the dried diatom ooze wall material coating;
2) weighing the mass of the diatom ooze wall material coating, and recording the mass as a;
3) grinding the block paint into powder, pouring the powder into a crucible for burning, and removing organic components;
4) putting all the burned powder into a beaker, adding a proper amount of dilute hydrochloric acid, heating to 120 ℃, continuously stirring, washing with clear water, filtering, and putting into a crucible to dry the surface moisture to obtain a coarse diatomite sample;
5) placing the coarse diatomite sample into a beaker again, adding a proper amount of dilute sulfuric acid, stirring, washing with clear water to be neutral, filtering, and placing into a crucible to dry the surface moisture to obtain silicon dioxide precipitate in the diatomite;
6) weighing the mass of the silicon dioxide precipitate, and recording the mass as b;
7) the content of silica in the diatomaceous earth was calculated, thereby obtaining the content of diatomaceous earth.
2. The measurement method according to claim 1, characterized in that: the drying condition in the step 1) is 110-120 ℃, and the drying time is 2.5-3 h.
3. The measurement method according to claim 1, characterized in that: the burning condition in the step 3) is 500-600 ℃, and the burning is carried out for 2-3 h.
4. The measurement method according to claim 1, characterized in that: the concentration of the dilute hydrochloric acid in the step 4) is 5-8% of the dilute hydrochloric acid by mass.
5. The measurement method according to claim 1, characterized in that: the crucible drying condition in the step 4) is 250-300 ℃, and the drying time is 1 h.
6. The measurement method according to claim 1, characterized in that: the concentration of the dilute sulfuric acid in the step 5) is 10-15% of the dilute sulfuric acid by mass fraction.
7. The measurement method according to claim 1, characterized in that: the crucible drying condition in the step 5) is 300-350 ℃, and the drying time is 2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110228867.2A CN112763375A (en) | 2021-03-02 | 2021-03-02 | Method for determining content of diatomite in diatom ooze wall material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110228867.2A CN112763375A (en) | 2021-03-02 | 2021-03-02 | Method for determining content of diatomite in diatom ooze wall material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112763375A true CN112763375A (en) | 2021-05-07 |
Family
ID=75690763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110228867.2A Pending CN112763375A (en) | 2021-03-02 | 2021-03-02 | Method for determining content of diatomite in diatom ooze wall material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112763375A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316431A (en) * | 2014-11-07 | 2015-01-28 | 青岛泉佳美硅藻泥科技有限公司 | Method for detecting content of diatomaceous earth in diatom ooze wall material |
| CN104973605A (en) * | 2015-07-29 | 2015-10-14 | 长白朝鲜族自治县金缘硅藻土制品有限公司 | Purification method of crude diatomite |
| CN108069674A (en) * | 2018-01-30 | 2018-05-25 | 成都新柯力化工科技有限公司 | A kind of diatom ooze and construction method of efficient absorption formaldehyde |
| CN108187648A (en) * | 2018-01-31 | 2018-06-22 | 成都新柯力化工科技有限公司 | A kind of diatom ooze and preparation method of fast decoupled indoor formaldehyde |
| US20190176123A1 (en) * | 2014-08-29 | 2019-06-13 | Imerys Usa, Inc. | Methods of making highly purified diatomaceous earth with wide range of filtration rates |
-
2021
- 2021-03-02 CN CN202110228867.2A patent/CN112763375A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190176123A1 (en) * | 2014-08-29 | 2019-06-13 | Imerys Usa, Inc. | Methods of making highly purified diatomaceous earth with wide range of filtration rates |
| CN104316431A (en) * | 2014-11-07 | 2015-01-28 | 青岛泉佳美硅藻泥科技有限公司 | Method for detecting content of diatomaceous earth in diatom ooze wall material |
| CN104973605A (en) * | 2015-07-29 | 2015-10-14 | 长白朝鲜族自治县金缘硅藻土制品有限公司 | Purification method of crude diatomite |
| CN108069674A (en) * | 2018-01-30 | 2018-05-25 | 成都新柯力化工科技有限公司 | A kind of diatom ooze and construction method of efficient absorption formaldehyde |
| CN108187648A (en) * | 2018-01-31 | 2018-06-22 | 成都新柯力化工科技有限公司 | A kind of diatom ooze and preparation method of fast decoupled indoor formaldehyde |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104088137B (en) | A kind of method utilizing ferrum dravite and Paligorskite to prepare functional type wallpaper | |
| Kuśmierek et al. | The effects of the thermal treatment of activated carbon on the phenols adsorption | |
| CN104597158B (en) | A kind of method of light-concentration volatile benzene homologues content in measure room air, for the scavenging material of light-concentration volatile benzene homologues | |
| CN106975439A (en) | It is a kind of to be used to adsorb Si/SiOx nano composite materials of volatile organic contaminant and preparation method thereof | |
| CN112763375A (en) | Method for determining content of diatomite in diatom ooze wall material | |
| CN107973295B (en) | Preparation method of high-performance formaldehyde-removing activated carbon | |
| KR20100041251A (en) | Preparation method of inorganic coating composition with humidity control and harmful materials reduction function | |
| CN109721322A (en) | Modification infusorial earth-silicon dioxide silica aerogel composite material and its preparation method and application | |
| JP5118864B2 (en) | Humidity conditioning and gas adsorbing material and manufacturing method thereof | |
| JPH1099676A (en) | Adsorbent for air separation, its production and air separation using said adsorbent | |
| JP3089395B2 (en) | Porous material with autonomous humidity control function | |
| CN113666640B (en) | Mesoporous antibacterial frit, preparation method thereof and preparation method of antibacterial ceramic tile | |
| CN104316431A (en) | Method for detecting content of diatomaceous earth in diatom ooze wall material | |
| KR20170006951A (en) | Moisture absorption material for drying appaaratus | |
| JP2000273972A (en) | Humidity controlling building material | |
| JP6973598B2 (en) | Composite base material and its manufacturing method, composite building material panel manufacturing method, and coating equipment | |
| JP2002097087A (en) | Moisture controlling building material | |
| KR100883053B1 (en) | The eco-environment composition | |
| CN111138672B (en) | Metal organic framework material, preparation method thereof and adsorption device comprising metal organic framework material | |
| JP3050139B2 (en) | Activated carbon reforming method | |
| JP2001219059A (en) | Moisture conditioning/deodorizing material using siliceous shale | |
| KR100604695B1 (en) | Composition for elimination formaldehyde and volatile organic compound | |
| JP3869136B2 (en) | Manufacturing method of humidity control material | |
| KR100427264B1 (en) | Powdery humidity self control material and its preparation method | |
| Cheng et al. | Synthesis of humidity‐conditioning mesoporous molecular sieves by using liquid‐crystal display waste glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210507 |
|
| RJ01 | Rejection of invention patent application after publication |