CN102921273A - Mine carbon dioxide absorbent and preparation method thereof - Google Patents
Mine carbon dioxide absorbent and preparation method thereof Download PDFInfo
- Publication number
- CN102921273A CN102921273A CN2012104353855A CN201210435385A CN102921273A CN 102921273 A CN102921273 A CN 102921273A CN 2012104353855 A CN2012104353855 A CN 2012104353855A CN 201210435385 A CN201210435385 A CN 201210435385A CN 102921273 A CN102921273 A CN 102921273A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- dioxide absorbent
- particle
- phenolphthalein
- mine
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a mine carbon dioxide absorbent and a preparation method thereof and belongs to the field of coal mine safety. The mine carbon dioxide absorbent is composed of components of, by mass, 99.4-99.7% of lithium hydroxide and 0.3-0.6% of phenolphthalein, wherein the purity of the phenolphthalein is analytically pure. By means of the carbon dioxide absorbent, the absorptivity of carbon dioxide is improved, the phenolphthalein is used as an indicator, and the phenolphthalein becomes white when pink loses efficacy so that the display is obvious and intuitional.
Description
Technical field
The present invention relates to a kind of mine carbon dioxide absorbent and preparation method thereof, be specifically related to carbon-dioxide absorbent of a kind of carbon dioxide that absorbs characteristics of contaminated respiratory droplets for colliery and other mine at refuge chamber, survival capsule and self-rescuer and preparation method thereof, belong to the safety of coal mines field.
Background technology
At present, known mine carbon dioxide absorbent is calcium hydroxide (being commonly called as soda lime), this product absorbing carbon dioxide efficient is low, is subjected to environment temperature, humidity effect large, and it is poorer to absorb usefulness when being lower than 18 ℃, in addition, the indication of " effectively with inefficacy " is not obvious, and during use, it is many to produce water, ambient humidity is large, is not suitable for present down-hole avoiding system and uses in enormous quantities.Existing lithium hydroxide absorbent has added other additive during moulding, absorption efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of mine carbon dioxide absorbent and preparation method thereof, described carbon-dioxide absorbent has improved the carbon dioxide absorption rate, and uses the phenolphthalein agent of giving instruction, and becomes white after being lost efficacy by pink, shows obviously directly perceived.
Purpose of the present invention is realized by following technical scheme:
A kind of mine carbon dioxide absorbent, take described mine carbon dioxide absorbent oeverall quality as 100%, wherein each component and mass percent thereof are as follows:
Lithium hydroxide 99.4～99.7%,
Phenolphthalein 0.3～0.6%,
Described phenolphthalein purity is pure for analyzing.
The preparation method of a kind of mine carbon dioxide absorbent of the present invention, step is as follows:
(1) with monohydrate lithium hydroxide (LiOHH
2O) make irregular particle with the non-slurry pelletizing system;
(2) irregular particle that step (1) is made drying and dehydrating under 120～160 ℃ of temperature when particle water content≤5%, stops drying and dehydrating;
(3) be that analytically pure phenolphthalein reagent mixes in proportion with the lithium hydroxide particle behind step (2) drying and dehydrating and purity, uniform coloring namely obtains a kind of mine carbon dioxide absorbent of the present invention;
Wherein, the described non-slurry pelletizing of step (1) system comprises pressure roller pressing plate, broken whole grain and sieve unit; Pressure roller pressure makes pressure limit at 12～16MPa by regulation of hydraulic system; The particle diameter that makes irregular particle is 1mm～10mm; Preferable particle size is 1.5mm～5mm.
Beneficial effect
1, mine carbon dioxide absorbent of the present invention uses raw material monohydrate lithium hydroxide LiOHH
2The lithium hydroxide particle is made in the direct non-slurry pelletizing of the O then technology of drying and dehydrating, forms porous, has greatly increased specific area.
2, mine carbon dioxide absorbent of the present invention has improved the carbon dioxide absorption rate, and minimum is 75%, is up to 85%, is better than absorbent (water content 14～18%, absorptivity is more than 33%) and the commercially available lithium hydroxide of calcium hydroxide.
3, use the phenolphthalein agent of giving instruction in the mine carbon dioxide absorbent of the present invention, became white after being lost efficacy by pink, show obviously directly perceived.
The specific embodiment
Below in conjunction with specific embodiment in detail the present invention is described in detail, but is not limited to this.
Embodiment 1
A kind of mine carbon dioxide absorbent, wherein each component and mass percent thereof are as follows:
Lithium hydroxide accounts for 99.4%,
Phenolphthalein accounts for 0.6%, purity: analyze pure.
Described mine carbon dioxide absorbent preparation method step is as follows:
(1) with monohydrate lithium hydroxide (LiOHH
2O) make irregular particle with the non-slurry pelletizing system; Described non-slurry pelletizing system comprises pressure roller pressing plate, broken whole grain and sieve unit; Pressure roller pressure is by regulation of hydraulic system, and controlled pressure is 16MPa; The particle diameter that makes irregular particle is 1.5mm～5mm;
(2) irregular particle that step (1) is made drying and dehydrating under 120 ℃ of temperature when particle water content 4.6%, stops drying and dehydrating;
(3) be that analytically pure phenolphthalein reagent mixes in proportion with the lithium hydroxide particle behind step (2) drying and dehydrating and purity, uniform coloring namely obtains a kind of mine carbon dioxide absorbent of the present invention.
By the efficient that coal standard MT454-2008 tests described absorbent absorbing carbon dioxide, absorptivity is 75%.
Embodiment 2:
A kind of mine carbon dioxide absorbent, wherein each component and mass percent thereof are as follows:
Lithium hydroxide accounts for 99.5%,
Phenolphthalein accounts for 0.5%, purity: analyze pure.
Described mine carbon dioxide absorbent preparation method step is as follows:
(1) with monohydrate lithium hydroxide (LiOHH
2O) make irregular particle with the non-slurry pelletizing system; Described non-slurry pelletizing system comprises pressure roller pressing plate, broken whole grain and sieve unit; Pressure roller pressure is by regulation of hydraulic system, and controlled pressure is 14MPa; The particle diameter that makes irregular particle is 1.5mm～5mm;
(2) irregular particle that step (1) is made drying and dehydrating under 140 ℃ of temperature when particle water content 3.6%, stops drying and dehydrating;
(3) be that analytically pure phenolphthalein reagent mixes in proportion with the lithium hydroxide particle behind step (2) drying and dehydrating and purity, uniform coloring namely obtains a kind of mine carbon dioxide absorbent of the present invention.
By the efficient that coal standard MT454-2008 tests described absorbent absorbing carbon dioxide, absorptivity is 80%.
Embodiment 3:
A kind of mine carbon dioxide absorbent, wherein each component and mass percent thereof are as follows:
Lithium hydroxide accounts for 99.7%,
Phenolphthalein accounts for 0.3%, purity: analyze pure.
Described mine carbon dioxide absorbent preparation method step is as follows:
(1) with monohydrate lithium hydroxide (LiOHH
2O) make irregular particle with the non-slurry pelletizing system; Described non-slurry pelletizing system comprises pressure roller pressing plate, broken whole grain and sieve unit; Pressure roller pressure is by regulation of hydraulic system, and controlled pressure is 12MPa; The particle diameter that makes irregular particle is 1.5mm～5mm;
(2) irregular particle that step (1) is made drying and dehydrating under 160 ℃ of temperature when particle water content 2.6%, stops drying and dehydrating;
(3) be that analytically pure phenolphthalein reagent mixes in proportion with the lithium hydroxide particle behind step (2) drying and dehydrating and purity, uniform coloring namely obtains a kind of mine carbon dioxide absorbent of the present invention.
By the efficient that coal standard MT454-2008 tests described absorbent absorbing carbon dioxide, absorptivity is 85%.
The present invention includes but be not limited to above embodiment, every any being equal to of carrying out under the principle of spirit of the present invention, replace or local improvement, all will be considered as within protection scope of the present invention.
Claims (3)
1. mine carbon dioxide absorbent, it is characterized in that: take described mine carbon dioxide absorbent oeverall quality as 100%, wherein each component and mass percent thereof are as follows:
Lithium hydroxide 99.4～99.7%,
Phenolphthalein 0.3～0.6%,
Described phenolphthalein purity is pure for analyzing.
2. the preparation method of a kind of mine carbon dioxide absorbent according to claim 1, it is characterized in that: described method step is as follows:
(1) monohydrate lithium hydroxide is made irregular particle with the non-slurry pelletizing system;
(2) irregular particle that step (1) is made drying and dehydrating under 120～160 ℃ of temperature when particle water content≤5%, stops drying and dehydrating;
(3) be that analytically pure phenolphthalein reagent mixes in proportion with the lithium hydroxide particle behind step (2) drying and dehydrating and purity, uniform coloring namely obtains a kind of mine carbon dioxide absorbent of the present invention;
Wherein, the described non-slurry pelletizing of step (1) system comprises pressure roller pressing plate, broken whole grain and sieve unit; Pressure roller pressure makes pressure limit at 12～16MPa by regulation of hydraulic system; The particle diameter that makes irregular particle is 1mm～10mm.
3. the preparation method of a kind of mine carbon dioxide absorbent according to claim 2, it is characterized in that: the particle diameter of the irregular particle that described step (1) makes is 1.5mm～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435385.5A CN102921273B (en) | 2012-11-05 | 2012-11-05 | Mine carbon dioxide absorbent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435385.5A CN102921273B (en) | 2012-11-05 | 2012-11-05 | Mine carbon dioxide absorbent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102921273A true CN102921273A (en) | 2013-02-13 |
| CN102921273B CN102921273B (en) | 2015-02-18 |
Family
ID=47636284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210435385.5A Active CN102921273B (en) | 2012-11-05 | 2012-11-05 | Mine carbon dioxide absorbent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102921273B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920381A (en) * | 2013-09-30 | 2014-07-16 | 安徽养和医疗器械设备有限公司 | Carbon dioxide absorbent |
| CN109553118A (en) * | 2018-12-19 | 2019-04-02 | 江西赣锋锂业股份有限公司 | A kind of method of industrial production anhydrous lithium hydroxide ball |
| CN114749146A (en) * | 2022-05-19 | 2022-07-15 | 武汉铜兴船舶设计有限公司 | Preparation process and application of lithium hydroxide spherical absorbent |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070184U (en) * | 1990-05-12 | 1991-01-30 | 湖南煤矿安全救护装备研究所 | Chemical oxygen self saving device without starter |
| CN2525518Y (en) * | 2002-03-06 | 2002-12-11 | 上海养一和生物科技有限公司 | 14CO2 gas sampler |
| CN2788846Y (en) * | 2005-03-02 | 2006-06-21 | 中国船舶重工集团公司第七○二研究所 | Mask type respiratory apparatus |
| CN101104128A (en) * | 2007-08-01 | 2008-01-16 | 煤炭科学研究总院抚顺分院 | Carbon dioxide absorbent and preparation method |
| CN101636225A (en) * | 2006-12-26 | 2010-01-27 | 联合健康护理产品有限公司 | Carbon-dioxide absorbent |
| CN201648002U (en) * | 2009-08-11 | 2010-11-24 | 杨显铭 | Absorber for CO2 in air |
| CN102091503A (en) * | 2011-01-05 | 2011-06-15 | 湖南大学 | Chemical method for trapping, fixing and purifying carbon dioxide, sulfur dioxide, sulfur trioxide and nitrogen oxides |
| JP2012045518A (en) * | 2010-08-30 | 2012-03-08 | Babcock Hitachi Kk | Method and apparatus for treating exhaust gas containing carbon dioxide |
-
2012
- 2012-11-05 CN CN201210435385.5A patent/CN102921273B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070184U (en) * | 1990-05-12 | 1991-01-30 | 湖南煤矿安全救护装备研究所 | Chemical oxygen self saving device without starter |
| CN2525518Y (en) * | 2002-03-06 | 2002-12-11 | 上海养一和生物科技有限公司 | 14CO2 gas sampler |
| CN2788846Y (en) * | 2005-03-02 | 2006-06-21 | 中国船舶重工集团公司第七○二研究所 | Mask type respiratory apparatus |
| CN101636225A (en) * | 2006-12-26 | 2010-01-27 | 联合健康护理产品有限公司 | Carbon-dioxide absorbent |
| CN101104128A (en) * | 2007-08-01 | 2008-01-16 | 煤炭科学研究总院抚顺分院 | Carbon dioxide absorbent and preparation method |
| CN201648002U (en) * | 2009-08-11 | 2010-11-24 | 杨显铭 | Absorber for CO2 in air |
| JP2012045518A (en) * | 2010-08-30 | 2012-03-08 | Babcock Hitachi Kk | Method and apparatus for treating exhaust gas containing carbon dioxide |
| CN102091503A (en) * | 2011-01-05 | 2011-06-15 | 湖南大学 | Chemical method for trapping, fixing and purifying carbon dioxide, sulfur dioxide, sulfur trioxide and nitrogen oxides |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920381A (en) * | 2013-09-30 | 2014-07-16 | 安徽养和医疗器械设备有限公司 | Carbon dioxide absorbent |
| CN109553118A (en) * | 2018-12-19 | 2019-04-02 | 江西赣锋锂业股份有限公司 | A kind of method of industrial production anhydrous lithium hydroxide ball |
| CN114749146A (en) * | 2022-05-19 | 2022-07-15 | 武汉铜兴船舶设计有限公司 | Preparation process and application of lithium hydroxide spherical absorbent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102921273B (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102921273B (en) | Mine carbon dioxide absorbent and preparation method thereof | |
| CN109553118B (en) | Method for industrially producing anhydrous lithium hydroxide balls | |
| CN105214615B (en) | A kind of moulding process of composite absorbent material | |
| CN103768900A (en) | Marine air drying agent | |
| CN101890276A (en) | Drying agent for removing humidity and odor, and preparation method thereof | |
| CN103482624B (en) | Preparation method for active carbon with photocatalysis function | |
| CN104289040A (en) | Air-conditioning active carbon filtration material modified by adding a plurality of components such as silkworm excrement and preparation method of active carbon filtration material | |
| CN104289195A (en) | Activated carbon diatomite particles with well-developed pores and low cost and method for preparing activated carbon diatomite particles with well-developed pores and low cost. | |
| CN104014226A (en) | Method for preparing attapulgite desiccant | |
| CN104437366A (en) | Uneasily-disintegrated mixed active carbon desulfurizing agent and preparation method thereof | |
| CN106082291A (en) | A kind of preparation method of activated alumina desiccant | |
| CN105582790A (en) | High-adsorbability environment-friendly hollow glass drying agent | |
| US20160271586A1 (en) | Dechlorinating Agent for Blast Furnace Top Gas | |
| CN103349891A (en) | Calcium magnesium double salt CO2 absorbent prepared from modified dolomite and preparation method thereof | |
| CN105032453B (en) | New low solid mercury catalyst of acetylene hydrochlorination and preparation method thereof | |
| CN102587968A (en) | Air regeneration system for coal mine emergency refuge | |
| CN101658785A (en) | Preparation method of porous silicate powder capable of adsorbing indoor harmful gases | |
| CN102941061A (en) | Clay drying adsorbent | |
| CN102580468A (en) | Method for implementing trapping and separation of CO2 in flue gas by adopting magnesium-based absorbent | |
| CN104056393B (en) | Red mud network gel foam mud fire-prevention extinguishing agent | |
| CN103180025A (en) | Device and method for depleting acidic gases from gas mixtures | |
| CN104069805A (en) | Formaldehyde adsorbent capable of modifying coal cinder through pyrogenic process | |
| CN105032164B (en) | Carbon dioxide absorbent taking magnesium oxide as main material and preparation method for carbon dioxide absorbent | |
| CN202560303U (en) | Air regeneration device used for emergency risk avoiding in coal mine | |
| CN110841591A (en) | Normal-temperature organic chlorine dechlorinating agent, preparation method and application |
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 |