CN104353417B - Remove formaldehyde activity charcoal - Google Patents
Remove formaldehyde activity charcoal Download PDFInfo
- Publication number
- CN104353417B CN104353417B CN201410617943.9A CN201410617943A CN104353417B CN 104353417 B CN104353417 B CN 104353417B CN 201410617943 A CN201410617943 A CN 201410617943A CN 104353417 B CN104353417 B CN 104353417B
- Authority
- CN
- China
- Prior art keywords
- weight
- nitrate
- activated carbon
- charing
- adhesive
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to technical field of active carbon, it is specially a kind of activated carbon removing formaldehyde, use coal mass active carbon as carrier framework material, it is loaded with 0.5%～3%(weight) basic copper carbonate, 0.5%～3%(weight) manganese nitrate, 0.5%～3%(weight) cerous nitrate, 0.01%～0.1%(weight) silver nitrate, 40%～60%(weight) adhesive (tar).During preparing activated carbon, chemicals directly mixes with coal dust, then through press strip, carbonize, activate, prepare except formaldehyde activated carbon, compared with other preparation method, production cost can be substantially reduced.
Description
Technical field
The present invention relates to technical field of active carbon, a kind of activated carbon removing formaldehyde and preparation method.
Background technology
Formaldehyde (HCHO) is a kind of common room air pollution, is mainly derived from the artificial board of indoor furniture, the binder with formaldehyde as primary raw material, and contains formaldehyde components the other kinds ornament materials that can outwardly distribute.Formaldehyde is the material that toxicity is higher, is in second on China's toxic chemical priority acccess control list.For this situation, the technology of various improvement formaldehyde is arisen at the historic moment.Currently used administering method can be roughly classified into Ozonation, absorption method, photocatalytic oxidation and metal oxide method, and wherein absorption method has raw material extensively, simple to operate, low power consumption and other advantages.
Mostly the material being presently used for absorption method removal formaldehyde is that on activated carbon, molecular sieve high-ratio surface material loading different activities component is prepared from, but owing to most carrying method load capacity bare areas few, effective are inadequate, relatively costly, it is unsuitable for extensively applying.
Summary of the invention
It is an object of the invention to provide a kind of removal formaldehyde gas activated carbon and preparation method thereof, be mainly used in PARA FORMALDEHYDE PRILLS(91,95) gas and effectively protect.
The present invention adopts the following technical scheme that realization:
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 0.5%～3%(weight) basic copper carbonate, 0.5%～3%(weight) manganese nitrate, 0.5%～3%(weight) cerous nitrate, 0.01%～0.1%(weight) silver nitrate, 40%～60%(weight) adhesive (tar)；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 0.5%～3%, manganese nitrate 0.5%～3%, cerous nitrate 0.5%～3%, silver nitrate 0.01%～0.1%, adhesive 40%～60%(the most by weight by the weight calculating of coal dust), the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 80～100 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4～4.5ml/min.
The present invention by comprising basic copper carbonate, manganese nitrate, cerous nitrate, compound and the coal dust of silver nitrate carry out being sufficiently mixed, being molded, it is prepared as activated carbon through charing, activation, the metal oxide with reactivity it is converted into by the above metallic compound of heat-activated, with formaldehyde generation catalytic reaction, making Formaldehyde decomposition is CO2, and H2O。
Compared with prior art, have the advantage that
1, different types of coal or other materials are as raw material；
2, during preparing activated carbon, the coal dust of milled is carried out mixing press strip shaping with chemical reagent basic copper carbonate, manganese nitrate, cerous nitrate, silver nitrate, adhesive, water, but is not limited to add other component on this basis；
3, directly selecting coal is that activated carbon prepared by raw material, can effectively protect formaldehyde gas, and can reduce cost.
This method is a kind of with activated carbon manufacture method as source, adds active component in a certain operation, finally prepare can the cheap novel absorbent charcoal of effectively decomposing formaldehyde gas, effective protection of PARA FORMALDEHYDE PRILLS(91,95) gas can be met.The preparation breaking conventional formaldehyde gas protective materials is all with certain material as carrier, adds on this basis, with formaldehyde gas, chemistry or one or more chemicals of catalytic reaction occurs so that it is the method that PARA FORMALDEHYDE PRILLS(91,95) is removed.During preparing activated carbon, chemicals directly mixes with coal dust, then through press strip, carbonize, activate, prepare the activated carbon except formaldehyde, compared with other preparation method, production cost can be substantially reduced.
The present invention is reasonable in design, and preparation technology simply, easily operate, can realize mass production capabilities, and compared with impregnated carbon, weak effect is away from not quite.
Detailed description of the invention
Below the specific embodiment of the present invention is described in detail.
Embodiment1
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 2%(weight) basic copper carbonate, 1.5%(weight) manganese nitrate, 1.5%(weight) cerous nitrate, 0.05%(weight) silver nitrate, 50%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 2g, manganese nitrate 1.5g, cerous nitrate 1.5g, silver nitrate 0.05g, adhesive 50g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 80 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4.5ml/min.
Embodiment2
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 1%(weight) basic copper carbonate, 0.5%(weight) manganese nitrate, 2%(weight) cerous nitrate, 0.03%(weight) silver nitrate, 45%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 1g, manganese nitrate 0.5g, cerous nitrate 2g, silver nitrate 0.03g, adhesive 45g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 90 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4ml/min.
Embodiment3
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 0.5%(weight) basic copper carbonate, 3%(weight) manganese nitrate, 1%(weight) cerous nitrate, 0.01%(weight) silver nitrate, 60%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 0.5g, manganese nitrate 3g, cerous nitrate 1g, silver nitrate 0.01g, adhesive 60g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 100 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4.5ml/min.
Embodiment4
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 1.5%(weight) basic copper carbonate, 2.5%(weight) manganese nitrate, 3%(weight) cerous nitrate, 0.1%(weight) silver nitrate, 55%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 1.5g, manganese nitrate 2.5g, cerous nitrate 3g, silver nitrate 0.1g, adhesive 55g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 85 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4.5ml/min.
Embodiment5
A kind of removal formaldehyde activity charcoal, use coal mass active carbon as carrier framework material, it is loaded with 3%(weight) basic copper carbonate, 1%(weight) manganese nitrate, 0.5%(weight) cerous nitrate, 0.04%(weight) silver nitrate, 40%(weight) adhesive-tar；Wherein, it is 100% calculating with the weight of coal mass active carbon.
The preparation technology of this activated carbon mainly includes moulding process, charring process, activating process, specific as follows:
1, moulding process
Raw material coal (such as 100g) is carried out the abrasive dust of 7 hours, the screen cloth by 180 mesh of the coal dust 95% after mill.Weigh basic copper carbonate 3g, manganese nitrate 1g, cerous nitrate 0.5g, silver nitrate 0.07g, adhesive 40g the most by weight, the above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 95 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly putting in four fluid injection press and be shaped, (sample particle diameter is 0.9 to prepare sample
Mm).
2, charring process
Charing is the important stage that activated carbon pore structure is formed.Charing mainly pyrolytic process, gets rid of fugitive constituent and moisture, raising charcoal granule strength in molding mass, forms preliminary hole.Carbonization temperature, body of heater rotating speed etc. also produces impact to the performance of carbonized material.Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min.
3, activating process
The activation of activated carbon is a process giving carbon activity, makes charcoal form loose structure.Activation is generally divided into two stages: one is the clear hole stage, is purged by the material on carbonized material surface；Two is the reaming stage, is become larger by aperture, or forms new hole.Activation condition: activation temperature 850 DEG C, water vapour amount 4ml/min.
Claims (2)
1. remove formaldehyde activity charcoal for one kind, it is characterised in that: use following technique to prepare:
(1), moulding process
Raw material coal is carried out the abrasive dust of 7 hours, the coal dust 95% after the mill screen cloth by 180 mesh, weigh basic copper carbonate 0.5%～3%, manganese nitrate 0.5%～3%, cerous nitrate 0.5%～3%, silver nitrate 0.01%～0.1%, adhesive 40%～60% the most by weight, calculating by the weight of coal dust, described adhesive is tar；
The above medicine weighed up is sequentially added in kneading machine and is sufficiently mixed, temperature controls at 80～100 DEG C, the mixability of material is noted at any time in mixed process, after material mixes, material is taken out, quickly put in four fluid injection press and be shaped, preparing sample, sample particle diameter is 0.9 mm；
(2), charring process
Carbonization condition: charing final temperature 550 DEG C, charing rotating speed 25r/min；
(3), activating process
Activation condition: activation temperature 850 DEG C, water vapour amount 4～4.5ml/min.
Removal formaldehyde activity charcoal the most according to claim 1, it is characterised in that: in step (1), weigh basic copper carbonate 2%, manganese nitrate 1.5%, cerous nitrate 1.5%, silver nitrate 0.05%, adhesive 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617943.9A CN104353417B (en) | 2014-11-06 | 2014-11-06 | Remove formaldehyde activity charcoal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617943.9A CN104353417B (en) | 2014-11-06 | 2014-11-06 | Remove formaldehyde activity charcoal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104353417A CN104353417A (en) | 2015-02-18 |
| CN104353417B true CN104353417B (en) | 2016-08-17 |
Family
ID=52520779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410617943.9A Expired - Fee Related CN104353417B (en) | 2014-11-06 | 2014-11-06 | Remove formaldehyde activity charcoal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104353417B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080470B (en) * | 2015-09-08 | 2018-01-16 | 成都中科能源环保有限公司 | A kind of methane/carbon dioxide separating adsorbent |
| CN106492751A (en) * | 2016-10-31 | 2017-03-15 | 山西新华化工有限责任公司 | Impregnated carbon of protection methacrylaldehyde and preparation method thereof |
| CN107376879A (en) * | 2017-09-19 | 2017-11-24 | 江苏科力特环保科技有限公司 | One kind removes formaldehyde activated carbon |
| CN108079947B (en) * | 2017-12-05 | 2020-10-27 | 浙江立居环保科技有限公司 | Formaldehyde remover for furniture |
| CN108031435B (en) * | 2017-12-05 | 2020-09-11 | 宁夏浦士达环保科技有限公司 | Active carbon for removing formaldehyde and preparation method thereof |
| CN113800516A (en) * | 2020-06-11 | 2021-12-17 | 大同中车煤化有限公司 | Coal-based silver-loaded activated carbon and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101234351A (en) * | 2008-03-10 | 2008-08-06 | 华东理工大学 | Catalyst for synthesizing vanillin and derivative and preparation |
| CN101583425A (en) * | 2005-02-17 | 2009-11-18 | 孟山都技术公司 | Transition metal-containing catalysts and catalyst combinations including transition metal-containing catalysts and processes for their preparation and use as oxidation catalysts |
| CN102114428A (en) * | 2009-12-31 | 2011-07-06 | 中国船舶重工集团公司第七一八研究所 | Monolithic catalyst used for oxidizing CO and methanal under ordinary temperature and preparation method thereof |
| CN102139234A (en) * | 2011-01-06 | 2011-08-03 | 梁耀彰 | Loaded reduced precious metal catalyst as well as preparation method and application thereof |
| CN103433054A (en) * | 2013-08-13 | 2013-12-11 | 桐乡市健民过滤材料有限公司 | Compound catalyst for removing formaldehyde and preparation method of compound catalyst |
| CN104084192A (en) * | 2014-07-29 | 2014-10-08 | 山东沁宇环保科技有限公司 | Catalyst for degrading ozone and removing VOCs synergistically as well as preparation method and application of catalyst |
-
2014
- 2014-11-06 CN CN201410617943.9A patent/CN104353417B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101583425A (en) * | 2005-02-17 | 2009-11-18 | 孟山都技术公司 | Transition metal-containing catalysts and catalyst combinations including transition metal-containing catalysts and processes for their preparation and use as oxidation catalysts |
| CN101234351A (en) * | 2008-03-10 | 2008-08-06 | 华东理工大学 | Catalyst for synthesizing vanillin and derivative and preparation |
| CN102114428A (en) * | 2009-12-31 | 2011-07-06 | 中国船舶重工集团公司第七一八研究所 | Monolithic catalyst used for oxidizing CO and methanal under ordinary temperature and preparation method thereof |
| CN102139234A (en) * | 2011-01-06 | 2011-08-03 | 梁耀彰 | Loaded reduced precious metal catalyst as well as preparation method and application thereof |
| CN103433054A (en) * | 2013-08-13 | 2013-12-11 | 桐乡市健民过滤材料有限公司 | Compound catalyst for removing formaldehyde and preparation method of compound catalyst |
| CN104084192A (en) * | 2014-07-29 | 2014-10-08 | 山东沁宇环保科技有限公司 | Catalyst for degrading ozone and removing VOCs synergistically as well as preparation method and application of catalyst |
Non-Patent Citations (1)
| Title |
|---|
| "Oxidative decomposition of formaldehyde by metal oxides at room temperature";Yoshika Sekine;《Atmospheric Environment》;20021231;第36卷;5543-5547 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104353417A (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104353417B (en) | Remove formaldehyde activity charcoal | |
| CN103566882B (en) | A kind of high adsorption modified activated carbon and preparation method thereof | |
| CN104324732B (en) | Remove the preparation method of formaldehyde activity charcoal | |
| CN109939680A (en) | A kind of charcoal load zero-valent iron composite material and preparation method thereof | |
| CN106861413B (en) | A kind of removal formaldehyde core-shell structure porous material and preparation method thereof | |
| JP6853249B2 (en) | Modified latex containing graphene and its preparation method and use | |
| CN103212368A (en) | Multi-functional photocatalyst diatom purification particles and preparation method thereof | |
| CN103464099B (en) | A kind of preparation method of pressure-variable adsorption separation of C O2 active carbon | |
| CN106345409A (en) | Preparation method of active carbon material capable of efficiently absorbing formaldehyde | |
| CN103521178A (en) | Bamboo modified activated carbon adsorbent for treating phenolic wastewater and preparation method thereof | |
| CN105314632A (en) | Processing technology for active carbon | |
| CN103831085A (en) | Compound ceramic filter element with good wearproof adsorbing property and preparation method of filter element | |
| CN107262038A (en) | A kind of nanometer ore deposit crystalline substance purification particle containing graphene and preparation method thereof | |
| CN103382127A (en) | Composite ceramic filter core and preparation method thereof | |
| CN103551111A (en) | Active carbon for absorbing vehicle exhaust | |
| CN103623775B (en) | A kind of nano-ZnO/mesoporous carbon composite construction and preparation method thereof | |
| CN103830967A (en) | Composite medical stone ceramic filter element rich in trace elements | |
| CN104437422A (en) | Adsorbent for formaldehyde-scavenging haze-preventing gauze mask and preparation method thereof | |
| CN107814385A (en) | A kind of method for handling industrial wastewater using biomass char and preparing graphite mould porous carbon materials | |
| CN104098094A (en) | Active carbon for adsorbing phosphine and preparation method of active carbon | |
| CN108584953A (en) | A kind of method and apparatus that the regeneration of Industry Waste carbon dust prepares activated carbon | |
| CN104475009B (en) | A kind of method that mercury removal agent is prepared using waste methanol catalyst | |
| CN103521184A (en) | Grain husk modified activated carbon adsorbent and preparation method thereof | |
| CN105709737B (en) | Catalytic wet oxidation catalyst and its preparation method | |
| CN102491324B (en) | Preparation method of high denitrification activated coke |
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: 20160817 Termination date: 20201106 |