CN114192172B - 一种空气净化多孔陶瓷颗粒的制备工艺 - Google Patents
一种空气净化多孔陶瓷颗粒的制备工艺 Download PDFInfo
- Publication number
- CN114192172B CN114192172B CN202111446112.6A CN202111446112A CN114192172B CN 114192172 B CN114192172 B CN 114192172B CN 202111446112 A CN202111446112 A CN 202111446112A CN 114192172 B CN114192172 B CN 114192172B
- Authority
- CN
- China
- Prior art keywords
- porous ceramic
- ceramic plate
- catalyst
- preparing
- precursor solution
- 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.)
- Active
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 145
- 239000002245 particle Substances 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000004887 air purification Methods 0.000 title claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 38
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 28
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 28
- 239000011148 porous material Substances 0.000 claims abstract description 28
- 230000003197 catalytic effect Effects 0.000 claims abstract description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011787 zinc oxide Substances 0.000 claims abstract description 14
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 70
- 239000002243 precursor Substances 0.000 claims description 45
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 25
- 239000004202 carbamide Substances 0.000 claims description 25
- 238000005245 sintering Methods 0.000 claims description 25
- 238000005520 cutting process Methods 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 15
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004927 clay Substances 0.000 claims description 10
- 229940099596 manganese sulfate Drugs 0.000 claims description 10
- 239000011702 manganese sulphate Substances 0.000 claims description 10
- 235000007079 manganese sulphate Nutrition 0.000 claims description 10
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 10
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 10
- 229960001763 zinc sulfate Drugs 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000011068 loading method Methods 0.000 claims description 7
- 239000012018 catalyst precursor Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000462 isostatic pressing Methods 0.000 claims description 5
- IPJKJLXEVHOKSE-UHFFFAOYSA-L manganese dihydroxide Chemical compound [OH-].[OH-].[Mn+2] IPJKJLXEVHOKSE-UHFFFAOYSA-L 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 claims description 5
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 claims description 5
- 229940007718 zinc hydroxide Drugs 0.000 claims description 5
- 229910021511 zinc hydroxide Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 238000010298 pulverizing process Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 abstract description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003344 environmental pollutant Substances 0.000 abstract description 7
- 231100000719 pollutant Toxicity 0.000 abstract description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract description 5
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
- B01J27/224—Silicon carbide
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- B01J35/60—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/031—Precipitation
- B01J37/035—Precipitation on carriers
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
- F24F8/167—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
-
- 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
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- 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
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
本发明提供了一种空气净化多孔陶瓷颗粒的制备工艺,包括多孔陶瓷颗粒基材及催化剂,所述陶瓷颗粒基材材质为氧化铝、氧化锆、碳化硅,所述催化剂为氧化锰、氧化锌及氧化钛的混合物,所述催化剂负载在多孔陶瓷颗粒基材表面及孔道内表面,所述多孔陶瓷颗粒基材为不规则形状,当量直径为2‑4mm,孔道直径为1‑10μm,孔隙率为70‑90%,所述催化剂氧化锰含量为10‑40%,氧化锌含量为20‑30%,氧化钛含量为30‑50%。本发明制备的空气净化多孔陶瓷颗粒,在颗粒表面及孔道内部均匀负载催化剂,增加了催化面积,可有效催化分解空气中的甲醛、甲苯等气态污染物。
Description
技术领域
本发明属于空气净化技术领域,尤其涉及一种空气净化多孔陶瓷颗粒的制备工艺。
背景技术
随着人们生活水平的提高,室内空气质量越来越受到人们重视,室内空气污染物主要为颗粒物、甲醛、苯等有机物以及细菌病毒等微生物,室内空气净化方式多采用高效过滤器去除空气中的颗粒物以及细菌病毒等气溶胶,甲醛甲苯等气态污染物的处理多采用活性炭吸附或具有催化活性的滤网对气态污染物进行分催化分解。但是,活性炭吸附去除气态污染物,活性炭易吸附饱和,如不及时更换,吸附的气态污染物易挥发造成二次污染,具有催化性质的过滤网,催化剂负载在过滤网表面,催化活性面积较小,无法有效催化。为了获得较大的催化面积,将活性炭或多孔颗粒通过浸泡的方负载催化剂,但是,浸泡过程为静态负载,催化剂不易进入多孔材料的孔道内部,仅负载在多孔材料表面,浪费了多孔材料丰富的孔道内表面积,造成催化效果不佳。
发明内容
为了解决以上技术问题,本发明公开了一种空气净化多孔陶瓷颗粒的制备工艺,在颗粒表面及孔道内部均匀负载催化剂,增加了催化面积,可有效催化分解空气中的甲醛、甲苯等气态污染物。
为实现上述目的,本发明采用如下的技术方案:
一种空气净化多孔陶瓷颗粒的制备工艺,包括多孔陶瓷颗粒基材及催化剂,所述陶瓷颗粒基材材质为氧化铝、氧化锆、碳化硅,所述催化剂为氧化锰、氧化锌及氧化钛的混合物,所述催化剂负载在多孔陶瓷颗粒基材表面及孔道内表面,所述多孔陶瓷颗粒基材为不规则形状,当量直径为2-4mm,孔道直径为1-10μm,孔隙率为70-90%,所述催化剂氧化锰含量为10-40%,氧化锌含量为20-30%,氧化钛含量为30-50%;其制备步骤如下:
步骤一:基材制备,将陶瓷粉末与黏土、碳粉按照一定比例混合,采用等静压方式制备陶瓷板胚体,将陶瓷板胚体置于电炉中进行烧结,获得烧结多孔陶瓷板;
步骤二:催化剂前驱体负载,将步骤一中制备的多孔陶瓷板置于乙醇水溶液中,超声清洗后用去离子水洗净烘干,将清洗后的多孔陶瓷板采用法兰固定于管道横截面,管道下端与离心泵联系,管道上端与前驱体溶液池连接,溶液池中加入硫酸钛、硫酸锰、硫酸锌的混合前驱体溶液,开启离心泵,使混合前驱体溶液透过多孔陶瓷板,使多孔陶瓷板表面及内部孔道均被混合前驱体溶液填充润湿;
步骤三:催化剂反应生成,将步骤二中前驱体溶液池中的前驱体混合溶液放出,溶液池中加入尿素溶液,开启离心泵,使尿素溶液透过多孔陶瓷板,多孔陶瓷板中的前驱体硫酸钛、硫酸锰、硫酸锌与尿素反应生成氢氧化钛、氢氧化锰及氢氧化锌沉淀;
步骤四:多孔陶瓷板二次烧结,将步骤三获得的多孔陶瓷板取下,放在电炉中二次烧结,降温后获得催化多孔陶瓷板;
步骤五:催化多孔陶瓷板切割粉碎,将步骤四获得的催化多孔陶瓷板放入粉碎机中切割粉碎,获得成品。
制备步骤一中,所述陶瓷粉末占比60-80%,黏土占比10-20%、碳粉占比20-30%,所述等静压压力为10-20Mpa,等静压保持时间为1-2h,所述电炉中烧结温度采用梯度升温法升至800-1300℃,保温30-150min。
进一步的,制备步骤二中,所述超声功率为80-120W,所述超声频率为40-60KHz,所述前驱体溶液硫酸钛浓度10-30%,所述混合前驱体溶液透过多孔陶瓷板速率为0.01-0.1m/min。
进一步的,制备步骤三中,所述尿素溶液浓度为10-20%,尿素溶液透过陶瓷板的速率为0.01-0.05m/min。
进一步的,制备步骤四中,二次烧结温度为300-400℃,升高至所需温度后保温30-60min。
进一步的,制备步骤五中,切割粉碎过程中采用水洗方法去除切割粉碎时附着在颗粒表面的粉尘。
本发明所述的一种空气净化多孔陶瓷颗粒的制备工艺及其制备工艺,采用动态负载原位反应生成的方法在多孔陶瓷板表面及孔道内部负载三元混合催化剂,二氧化钛及氧化锌两种过渡金属氧化物具有较高催化活性,可形成电子空穴,将空气中的水分子氧化成羟基自由基,羟基自由基具有强氧化性,可有效分解空气中的甲醛、甲苯等气态污染物,氧化锰具有强氧化性及催化功能,二氧化钛及氧化锌生成的空穴电子可进一步加强氧化锰的催化功能,为气态污染物的氧化分解提供强催化作用。催化剂负载过程通过两种反应物先后进入多孔陶瓷孔道,在孔道内进行反应,反应生成的催化剂通过分子间作用力直接附着在孔道内壁上,具有结合牢度强,不易脱落,附着均匀等优点。
附图说明
图1为本发明所述的空气净化多孔陶瓷颗粒电镜照片。
具体实施方式
下面结合附图及具体实施例对本发明作进一步说明。
实施例1
一种空气净化多孔陶瓷颗粒的制备工艺,包括多孔陶瓷颗粒基材及催化剂,所述陶瓷颗粒基材材质为氧化铝、氧化锆、碳化硅,所述催化剂为氧化锰、氧化锌及氧化钛的混合物,所述催化剂负载在多孔陶瓷颗粒基材表面及孔道内表面,所述多孔陶瓷颗粒基材为不规则形状,当量直径为2mm,孔道直径为1μm,孔隙率为70%,所述催化剂氧化锰含量为10%,氧化锌含量为20%,氧化钛含量为30%;其制备步骤如下:
步骤一:基材制备,将陶瓷粉末与黏土、碳粉按照一定比例混合,采用等静压方式制备陶瓷板胚体,将陶瓷板胚体置于电炉中进行烧结,获得烧结多孔陶瓷板;所述陶瓷粉末占比60%,黏土占比20%、碳粉占比20%,所述等静压压力为10Mpa,等静压保持时间为1h,所述电炉中烧结温度采用梯度升温法升至800℃,保温30min;
步骤二:催化剂前驱体负载,将步骤一中制备的多孔陶瓷板置于乙醇水溶液中,超声清洗后用去离子水洗净烘干,将清洗后的多孔陶瓷板采用法兰固定于管道横截面,管道下端与离心泵联系,管道上端与前驱体溶液池连接,溶液池中加入硫酸钛、硫酸锰、硫酸锌的混合前驱体溶液,开启离心泵,使混合前驱体溶液透过多孔陶瓷板,使多孔陶瓷板表面及内部孔道均被混合前驱体溶液填充润湿;所述超声功率为80W,所述超声频率为40KHz,所述前驱体溶液硫酸钛浓度10%,所述混合前驱体溶液透过多孔陶瓷板速率为0.01m/min;
步骤三:催化剂反应生成,将步骤二中前驱体溶液池中的前驱体混合溶液放出,溶液池中加入尿素溶液,开启离心泵,使尿素溶液透过多孔陶瓷板,多孔陶瓷板中的前驱体硫酸钛、硫酸锰、硫酸锌与尿素反应生成氢氧化钛、氢氧化锰及氢氧化锌沉淀;所述尿素溶液浓度为10%,尿素溶液透过陶瓷板的速率为0.01m/min;
步骤四:多孔陶瓷板二次烧结,将步骤三获得的多孔陶瓷板取下,放在电炉中二次烧结,降温后获得催化多孔陶瓷板;二次烧结温度为300℃,升高至所需温度后保温30min;
步骤五:催化多孔陶瓷板切割粉碎,将步骤四获得的催化多孔陶瓷板放入粉碎机中切割粉碎,获得成品;切割粉碎过程中采用水洗方法去除切割粉碎时附着在颗粒表面的粉尘。
实施例2
一种空气净化多孔陶瓷颗粒的制备工艺,包括多孔陶瓷颗粒基材及催化剂,所述陶瓷颗粒基材材质为氧化铝、氧化锆、碳化硅,所述催化剂为氧化锰、氧化锌及氧化钛的混合物,所述催化剂负载在多孔陶瓷颗粒基材表面及孔道内表面,所述多孔陶瓷颗粒基材为不规则形状,当量直径为3mm,孔道直径为6μm,孔隙率为80%,所述催化剂氧化锰含量为25%,氧化锌含量为25%,氧化钛含量为40%;其制备步骤如下:
步骤一:基材制备,将陶瓷粉末与黏土、碳粉按照一定比例混合,采用等静压方式制备陶瓷板胚体,将陶瓷板胚体置于电炉中进行烧结,获得烧结多孔陶瓷板;所述陶瓷粉末占比70%,黏土占比15%、碳粉占比25%,所述等静压压力为15Mpa,等静压保持时间为1.5h,所述电炉中烧结温度采用梯度升温法升至1000℃,保温90min;
步骤二:催化剂前驱体负载,将步骤一中制备的多孔陶瓷板置于乙醇水溶液中,超声清洗后用去离子水洗净烘干,将清洗后的多孔陶瓷板采用法兰固定于管道横截面,管道下端与离心泵联系,管道上端与前驱体溶液池连接,溶液池中加入硫酸钛、硫酸锰、硫酸锌的混合前驱体溶液,开启离心泵,使混合前驱体溶液透过多孔陶瓷板,使多孔陶瓷板表面及内部孔道均被混合前驱体溶液填充润湿;所述超声功率为100W,所述超声频率为50KHz,所述前驱体溶液硫酸钛浓度20%,所述混合前驱体溶液透过多孔陶瓷板速率为0.05m/min;
步骤三:催化剂反应生成,将步骤二中前驱体溶液池中的前驱体混合溶液放出,溶液池中加入尿素溶液,开启离心泵,使尿素溶液透过多孔陶瓷板,多孔陶瓷板中的前驱体硫酸钛、硫酸锰、硫酸锌与尿素反应生成氢氧化钛、氢氧化锰及氢氧化锌沉淀;所述尿素溶液浓度为15%,尿素溶液透过陶瓷板的速率为0.03m/min;
步骤四:多孔陶瓷板二次烧结,将步骤三获得的多孔陶瓷板取下,放在电炉中二次烧结,降温后获得催化多孔陶瓷板;二次烧结温度为350℃,升高至所需温度后保温45min;
步骤五:催化多孔陶瓷板切割粉碎,将步骤四获得的催化多孔陶瓷板放入粉碎机中切割粉碎,获得成品;切割粉碎过程中采用水洗方法去除切割粉碎时附着在颗粒表面的粉尘。
实施例3
一种空气净化多孔陶瓷颗粒的制备工艺,包括多孔陶瓷颗粒基材及催化剂,所述陶瓷颗粒基材材质为氧化铝、氧化锆、碳化硅,所述催化剂为氧化锰、氧化锌及氧化钛的混合物,所述催化剂负载在多孔陶瓷颗粒基材表面及孔道内表面,所述多孔陶瓷颗粒基材为不规则形状,当量直径为4mm,孔道直径为10μm,孔隙率为90%,所述催化剂氧化锰含量为40%,氧化锌含量为30%,氧化钛含量为50%;其制备步骤如下:
步骤一:基材制备,将陶瓷粉末与黏土、碳粉按照一定比例混合,采用等静压方式制备陶瓷板胚体,将陶瓷板胚体置于电炉中进行烧结,获得烧结多孔陶瓷板;所述陶瓷粉末占比80%,黏土占比20%、碳粉占比30%,所述等静压压力为20Mpa,等静压保持时间为2h,所述电炉中烧结温度采用梯度升温法升至1300℃,保温150min;
步骤二:催化剂前驱体负载,将步骤一中制备的多孔陶瓷板置于乙醇水溶液中,超声清洗后用去离子水洗净烘干,将清洗后的多孔陶瓷板采用法兰固定于管道横截面,管道下端与离心泵联系,管道上端与前驱体溶液池连接,溶液池中加入硫酸钛、硫酸锰、硫酸锌的混合前驱体溶液,开启离心泵,使混合前驱体溶液透过多孔陶瓷板,使多孔陶瓷板表面及内部孔道均被混合前驱体溶液填充润湿;所述超声功率为120W,所述超声频率为60KHz,所述前驱体溶液硫酸钛浓度30%,所述混合前驱体溶液透过多孔陶瓷板速率为0.1m/min;
步骤三:催化剂反应生成,将步骤二中前驱体溶液池中的前驱体混合溶液放出,溶液池中加入尿素溶液,开启离心泵,使尿素溶液透过多孔陶瓷板,多孔陶瓷板中的前驱体硫酸钛、硫酸锰、硫酸锌与尿素反应生成氢氧化钛、氢氧化锰及氢氧化锌沉淀;所述尿素溶液浓度为20%,尿素溶液透过陶瓷板的速率为0.05m/min;
步骤四:多孔陶瓷板二次烧结,将步骤三获得的多孔陶瓷板取下,放在电炉中二次烧结,降温后获得催化多孔陶瓷板;二次烧结温度为400℃,升高至所需温度后保温60min;
步骤五:催化多孔陶瓷板切割粉碎,将步骤四获得的催化多孔陶瓷板放入粉碎机中切割粉碎,获得成品;切割粉碎过程中采用水洗方法去除切割粉碎时附着在颗粒表面的粉尘。
所属领域的普通技术人员应当理解:以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (6)
1.一种空气净化多孔陶瓷颗粒的制备工艺,其特征在于,包括多孔陶瓷颗粒基材及催化剂,所述陶瓷颗粒基材材质为氧化铝、氧化锆、碳化硅,所述催化剂为氧化锰、氧化锌及氧化钛的混合物,所述催化剂负载在多孔陶瓷颗粒基材表面及孔道内表面,所述多孔陶瓷颗粒基材为不规则形状,当量直径为2-4mm,孔道直径为1-10μm,孔隙率为70-90%,所述催化剂氧化锰含量为10-40%,氧化锌含量为20-30%,氧化钛含量为30-50%;
其制备步骤如下:
步骤一:基材制备,将陶瓷粉末与黏土、碳粉按照一定比例混合,采用等静压方式制备陶瓷板胚体,将陶瓷板胚体置于电炉中进行烧结,获得烧结多孔陶瓷板;
步骤二:催化剂前驱体负载,将步骤一中制备的多孔陶瓷板置于乙醇水溶液中,超声清洗后用去离子水洗净烘干,将清洗后的多孔陶瓷板采用法兰固定于管道横截面,管道下端与离心泵联系,管道上端与前驱体溶液池连接,溶液池中加入硫酸钛、硫酸锰、硫酸锌的混合前驱体溶液,开启离心泵,使混合前驱体溶液透过多孔陶瓷板,使多孔陶瓷板表面及内部孔道均被混合前驱体溶液填充润湿;所述混合前驱体溶液透过多孔陶瓷板速率为0.01-0.1m/min;
步骤三:催化剂反应生成,将步骤二中前驱体溶液池中的前驱体混合溶液放出,溶液池中加入尿素溶液,开启离心泵,使尿素溶液透过多孔陶瓷板,多孔陶瓷板中的前驱体硫酸钛、硫酸锰、硫酸锌与尿素反应生成氢氧化钛、氢氧化锰及氢氧化锌沉淀;尿素溶液透过陶瓷板的速率为0.01-0.05m/min;
步骤四:多孔陶瓷板二次烧结,将步骤三获得的多孔陶瓷板取下,放在电炉中二次烧结,降温后获得催化多孔陶瓷板;
步骤五:催化多孔陶瓷板切割粉碎,将步骤四获得的催化多孔陶瓷板放入粉碎机中切割粉碎,获得成品。
2.根据权利要求1所述的一种空气净化多孔陶瓷颗粒的制备工艺,其特征在于,制备步骤一中,所述陶瓷粉末占比60-80%,黏土占比10-20%、碳粉占比20-30%,所述等静压压力为10-20Mpa,等静压保持时间为1-2h,所述电炉中烧结温度采用梯度升温法升至800-1300℃,保温30-150min。
3.根据权利要求1所述的一种空气净化多孔陶瓷颗粒的制备工艺,其特征在于,制备步骤二中,所述超声功率为80-120W,所述超声频率为40-60KHz,所述前驱体溶液硫酸钛浓度10-30%。
4.根据权利要求1所述的一种空气净化多孔陶瓷颗粒的制备工艺,其特征在于,制备步骤三中,所述尿素溶液浓度为10-20%。
5.根据权利要求1所述的一种空气净化多孔陶瓷颗粒的制备工艺,其特征在于,制备步骤四中,二次烧结温度为300-400℃,升高至所需温度后保温30-60min。
6.根据权利要求1所述的一种空气净化多孔陶瓷颗粒的制备工艺,其特征在于,制备步骤五中,切割粉碎过程中采用水洗方法去除切割粉碎时附着在颗粒表面的粉尘。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111446112.6A CN114192172B (zh) | 2021-12-01 | 2021-12-01 | 一种空气净化多孔陶瓷颗粒的制备工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111446112.6A CN114192172B (zh) | 2021-12-01 | 2021-12-01 | 一种空气净化多孔陶瓷颗粒的制备工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114192172A CN114192172A (zh) | 2022-03-18 |
CN114192172B true CN114192172B (zh) | 2024-02-02 |
Family
ID=80649788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111446112.6A Active CN114192172B (zh) | 2021-12-01 | 2021-12-01 | 一种空气净化多孔陶瓷颗粒的制备工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114192172B (zh) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5036037A (en) * | 1989-05-09 | 1991-07-30 | Maschinenfabrik Andritz Aktiengesellschaft | Process of making catalysts and catalysts made by the process |
JP2009262098A (ja) * | 2008-04-28 | 2009-11-12 | Ne Chemcat Corp | 選択還元触媒を用いた排気ガス浄化方法 |
CN101734946A (zh) * | 2009-12-18 | 2010-06-16 | 广东工业大学 | 一种在堇青石蜂窝陶瓷上涂覆涂层的方法及其应用 |
CN107413328A (zh) * | 2017-04-13 | 2017-12-01 | 湛江市斯格特环境科技有限公司 | 一种表面负载型空气净化材料及其制备方法 |
CN110479023A (zh) * | 2019-08-23 | 2019-11-22 | 北京零微科技有限公司 | 一种环保净化材料及其制备方法 |
CN113082977A (zh) * | 2021-04-06 | 2021-07-09 | 江苏舒源空调制造有限公司 | 一种高效废气处理系统及工艺 |
-
2021
- 2021-12-01 CN CN202111446112.6A patent/CN114192172B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5036037A (en) * | 1989-05-09 | 1991-07-30 | Maschinenfabrik Andritz Aktiengesellschaft | Process of making catalysts and catalysts made by the process |
JP2009262098A (ja) * | 2008-04-28 | 2009-11-12 | Ne Chemcat Corp | 選択還元触媒を用いた排気ガス浄化方法 |
CN101734946A (zh) * | 2009-12-18 | 2010-06-16 | 广东工业大学 | 一种在堇青石蜂窝陶瓷上涂覆涂层的方法及其应用 |
CN107413328A (zh) * | 2017-04-13 | 2017-12-01 | 湛江市斯格特环境科技有限公司 | 一种表面负载型空气净化材料及其制备方法 |
CN110479023A (zh) * | 2019-08-23 | 2019-11-22 | 北京零微科技有限公司 | 一种环保净化材料及其制备方法 |
CN113082977A (zh) * | 2021-04-06 | 2021-07-09 | 江苏舒源空调制造有限公司 | 一种高效废气处理系统及工艺 |
Non-Patent Citations (4)
Title |
---|
"空气中甲醛的吸附氧化研究";陈海川;《资源节约与环保》(第4期);第108页最后一段 * |
傅高升.《汽车材料》.山东大学出版社,2011,第280-281页. * |
王尚弟等.《催化剂工程导论》.化学工业出版社,2001,第56页. * |
黄仲涛等.《基本有机化工理论基础》.化学工业出版社,1980,第344页. * |
Also Published As
Publication number | Publication date |
---|---|
CN114192172A (zh) | 2022-03-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110508274B (zh) | 改性生物炭低温脱硝催化剂及其应用 | |
CN106732641A (zh) | 一种新型具有催化功能的陶瓷膜管及其制备方法 | |
CN108033719B (zh) | 一种高效多用途光催化混凝土 | |
CN112403459B (zh) | 一种基于金属相变微胶囊的低温scr催化剂及其制备方法 | |
CN111318157B (zh) | 一种改性电石渣脱硫脱硝剂的制备方法、产品及应用 | |
CN106890642B (zh) | 用于处理工业废气中苯类物质的催化剂及其制备方法 | |
CN111410547A (zh) | 一种固废基陶瓷催化膜及其制备方法和应用 | |
CN106955681A (zh) | 一种用于甲醛净化的整体式催化剂的制备方法 | |
CN111001430A (zh) | 一种废气处理用吸附/催化材料及其制备方法 | |
CN102728346A (zh) | MnO2-TiO2碳纳米管-多孔无机陶瓷膜低温催化脱硝自清理材料及其制备方法 | |
CN106391035B (zh) | 一种非均相类Fenton催化剂及其制备方法和在降解含酚废水中的应用 | |
CN114192172B (zh) | 一种空气净化多孔陶瓷颗粒的制备工艺 | |
CN1995713A (zh) | 金属载体三效催化器及其制造方法 | |
CN102728347B (zh) | MnO2-TiO2石墨烯-多孔无机陶瓷膜低温催化脱硝自清理材料及其制备方法 | |
CN111841565B (zh) | 一种常温除臭氧催化材料 | |
CN110252375B (zh) | 一种铁、氮、钴共掺杂的二氧化钛/活性炭复合物、制备方法及作为光催化剂应用 | |
CN102728365B (zh) | 多孔无机陶瓷膜-Fe改性TiO2-碳纳米管光触媒材料及其制备方法 | |
CN102059123B (zh) | 烧结FeCrAl金属纤维多孔载体催化剂及其制备方法 | |
CN102744091B (zh) | 多孔无机陶瓷膜-石墨烯-N改性TiO2光触媒材料及其制备方法 | |
CN110282703B (zh) | 一种自支撑MnOx/LSC三维复合电极的制备及其在矿化难降解有机污染物中的应用 | |
CN113289603A (zh) | 用于催化臭氧氧化的钙基催化剂及其制备方法和应用 | |
CN106693955A (zh) | 一种双金属整体式等离子体催化剂及其制备方法与应用 | |
CN111617753A (zh) | 一种Ce-Cu/γ-Al2O3负载型催化剂催化湿式氧化再生活性炭的方法 | |
CN105498789A (zh) | 一种用于VOCs催化燃烧的柔性玻璃纤维基催化剂及其制备方法和应用 | |
CN213824853U (zh) | 纳米摩擦电荷增强锰氧化物/高分子复合材料去除甲醛的装置 |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |