CN1128009C - Making process of TiO2-based catalyst carrier - Google Patents
Making process of TiO2-based catalyst carrier Download PDFInfo
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- CN1128009C CN1128009C CN 01128861 CN01128861A CN1128009C CN 1128009 C CN1128009 C CN 1128009C CN 01128861 CN01128861 CN 01128861 CN 01128861 A CN01128861 A CN 01128861A CN 1128009 C CN1128009 C CN 1128009C
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- metatitanic acid
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Abstract
The present invention uses wet metatitanic acid which is the intermediate product of the production of sulfuric acid titanium dioxide as chief raw material; the wet metatitanic acid is dried and crushed to manufacture metatitanic acid powder; a pore forming agent is added and mixed; a binding agent is used for kneading, extruding and reshaping the metatitanic acid powder into circular particles; the particles are dried and thermally processed to manufacture titanium dioxide based catalyst carrier particles; the pore forming agent is mixed according to the proportion of 5 to 15%, and the bonding agent is added according to the proportion that the bonding agent of 50 to 70 ml is added into the metatitanic acid powder of 100 grams specifically measured by the weight of the metatitanic acid powder to manufacture required section material; the section material is dried to constant weight and calcined for 30 to 60 minutes at 800 to 950 DEG C to generate particle products with the surface area of 4 to 20m<2>/ gram and the compression strength of 80 to 150N/ particle. The carrier is mainly used for manufacturing catalyst particles for catalyzing and degrading high-concentration and poisonous organic wastewater.
Description
The present invention relates to a kind of TiO 2-based catalyst carrier, particularly a kind of manufacture method that can be used for making the catalyst carrier of degrading high concentration poisonous organic wastewater.
With the method degrading high concentration poisonous organic wastewater of chemical catalysis, be a frontier of present environmental protection development in science and technology.Comparatively general with organic report in the nanometer anatase titania photocatalytic degradation solution, but the catalyst carrier of this technological requirement chemical stability, heat endurance, compression strength, specific area, and the concerted catalysis of reactive metal balance preferably to be arranged aspect active.Conventional Industrial Catalysis agent carrier can not reach the requirement of this technology.Owing to the contradiction of dynamic (dynamical) reason generation process scale and processing speed, make the technology of photocatalytic degradation organic wastewater be difficult to realize industrial applications.
Titanium dioxide (TiO
2) have good chemical stability and heat endurance, and work content is less than metal, by the loaded catalyst that it constitutes as carrier, can occur electronics by carrier to the flowing of metal, strengthened titanium dioxide and reactive metal concerted catalysis activity.Chinese patent literature CN1149261A, CN1212992A have announced to be the method that matrix is made catalyst carrier with titanium dioxide; Document CN1154271A, CN12111200A, CN1178483A have announced the method for making the catalyst that contains titanium dioxide.The described catalyst of above document is mainly used in chemical synthesis industry, especially for oil, natural gas, Coal Chemical Industry.
The preparation method of TiO 2-based catalyst carrier particle of the present invention is different from the described method of above document, and is mainly used in the degrading high concentration poisonous organic wastewater.
The present invention proposes a kind of manufacture method of TiO 2-based catalyst carrier, and selected primary raw material is the wet metatitanic acid of intermediate products that sulfate process titanium dioxide is produced, and this raw material is cheap and easy to get, and manufacturing process is simple.
The preparation method of TiO 2-based catalyst carrier particle of the present invention is: adopting the wet metatitanic acid of intermediate product of sulfuric acid method titanium pigment production is primary raw material, and metatitanic acid dry powder is made in drying, pulverizing, and the adding pore creating material is mixed, adhesive is kneaded; Push, be shaped to circular granular; Particle drying, heat treatment make carrier granular.Specifically in metatitanic acid dry powder weight, respectively in 5～15% ratios sneak into pore creating material, the ratio that adds 50～70ml in 100 gram metatitanic acid dry powder adds bonding agent, makes the section bar of requirement, this section bar is dried to constant weight, 800～950 ℃, through calcining in 30～60 minutes, generate surface area 4～20m
2/ gram, compression strength 80～150N/ grain products.
Above-mentioned pore creating material is carbon dust, starch or carbonate; Bonding agent is the intermediate products titanyl sulfate solution that sulfuric acid method titanium pigment is produced, wherein titanium dioxide TiO
2Be 150～200g/L.
Yunnan University adopts titania catalyst carrier particle provided by the invention, carries out being used for catalytic degradation high concentration poisonous organic wastewater after reactive metal soaks processing altogether, at 200～300 ℃ of temperature, pressure 50～100Kg/cm
2Under the condition, the chemical kinetics speed of catalytic degradation high concentrated organic wastewater is greatly improved, make the industrial applications of photocatalytic degradation organic wastewater technology become possibility, industrial applications research to this technology still belongs to first at home, the results are shown in Table one, two, the CODcr degradation rate of organic wastewater is reached more than 99%.
Embodiment one:
With 110 ℃ of oven dry of intermediate product metatitanic acid of sulfuric acid method titanium pigment production, be crushed to＜0.15mm; Get 100 gram metatitanic acid dry powder, 5 gram starch, 5 gram carbon dusts and mix, adds the intermediate product titanyl sulfate solution (TiO of 65 milliliters of sulfuric acid method titanium pigments productions
2150～200g/L) knead; Push, be shaped to the about 5 millimeters circular granular of diameter then,, slowly be warming up to 850 ℃ of heat treatments and made catalyst carrier particle of the present invention in 30 minutes through 100 ℃ of oven dry.The compression strength 110N/ of this particle, specific area 15m
2/ g.
Embodiment two:
With 110 ℃ of oven dry of intermediate product metatitanic acid of sulfuric acid method titanium pigment production, be crushed to＜0.15mm; Get 100 gram metatitanic acid dry powder, 5 gram starch, 5 gram carbon dusts and mix, adds the intermediate product titanyl sulfate solution (TiO of 65 milliliters of sulfuric acid method titanium pigments productions
2150～200g/L) knead; Push, be shaped to the about 5 millimeters circular granular of diameter then,, slowly be warming up to 800 ℃ of heat treatments and made catalyst carrier particle of the present invention in 30 minutes through 100 ℃ of oven dry.The compression strength 70N/ of this particle, specific area 20m
2/ g.
Embodiment three:
With 110 ℃ of oven dry of intermediate product metatitanic acid of sulfuric acid method titanium pigment production, be crushed to＜0.15mm; Get 100 gram metatitanic acid dry powder, 5 gram starch, 5 gram carbon dusts and mix, adds the intermediate product titanyl sulfate solution (TiO of 65 milliliters of sulfuric acid method titanium pigments productions
2150～200g/L) knead; Push, be shaped to the about 5 millimeters circular granular of diameter then,, slowly be warming up to 900 ℃ of heat treatments and made catalyst carrier particle of the present invention in 30 minutes through 100 ℃ of oven dry.The compression strength 150N/ of this particle, specific area 5.5m
2/ g.
Embodiment four:
The particle that Yunnan University adopts embodiment one method to make after soaking reactive metal altogether and handling, is handled high concentrated organic wastewater in 200 liters of/day CWOSTU small testing devices, effect sees Table one, table two.
Table one
| Water sample | Reaction time | O2 | pH | CODcr | The ammonia argon | Capacity |
| ％ | mg/L | mg/L | L/h | |||
| The former water of import | 0 | 8.5 | 12676.4 | 3424.4 | ||
| The R-1 outlet | 15 | 10.7 | 3.5 | 15.95 | ND | 600 |
| Go out rate | 99.87％ | 100％ | ||||
| The R-2 outlet | 30 | 9.8 | 3.2 | 12.53 | 2.8 | 570 |
| Go out rate | 99.90％ | 99.92％ |
Experiment condition: 90Kg/cm
2, 270 ℃, inflow: 4L/h
Table two
| Water sample | Reaction time | O2 | pH | CODcr | The ammonia argon | Capacity |
| ％ | mg/L | mg/L | L/h | |||
| The former water of import | 0 | 8.5 | 10737 | 3757.6 | ||
| R-1 goes out saliva | 15 | 13.7 | 4.6 | 2624.8 | 98.0 | 581.0 |
| Go out rate | 75.6％ | 97.4％ | ||||
| R-2 goes out saliva | 30 | 12.3 | 5.4 | 23.86 | ND | 577.2 |
| Go out rate | 99.8％ | 100％ |
Experiment condition: 70Kg/cm
2, 250 ℃, inflow: 4L/h
Claims (3)
1, a kind of method of making TiO 2-based catalyst carrier, it is characterized in that: selecting the wet metatitanic acid of intermediate products of sulfuric acid method titanium pigment production for use is raw material, get metatitanic acid dry powder after drying, the pulverizing, in metatitanic acid dry powder weight, respectively in 5～15% ratios sneak into pore creating material, the ratio that adds 50～70ml in 100 gram metatitanic acid dry powder adds bonding agent, makes the section bar of requirement, this section bar is dried to constant weight, 800～950 ℃, through calcining in 30～60 minutes, generate surface area 4～20m
2/ gram, compression strength 80～150N/ product.
2, the method for claim 1 is characterized in that: selected pore creating material is carbon dust, starch or carbonate.
3, the method for claim 1 is characterized in that: selected bonding agent is the intermediate products titanyl sulfate solution that sulfate process titanium dioxide is produced, its TiO
2Be 150～200g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128861 CN1128009C (en) | 2001-09-15 | 2001-09-15 | Making process of TiO2-based catalyst carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01128861 CN1128009C (en) | 2001-09-15 | 2001-09-15 | Making process of TiO2-based catalyst carrier |
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| CN1348834A CN1348834A (en) | 2002-05-15 |
| CN1128009C true CN1128009C (en) | 2003-11-19 |
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| CN 01128861 Expired - Fee Related CN1128009C (en) | 2001-09-15 | 2001-09-15 | Making process of TiO2-based catalyst carrier |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460070C (en) * | 2005-07-12 | 2009-02-11 | 沈阳化工研究院 | Preparation of multi-component titanium-based catalyst carrier |
| US20070037041A1 (en) | 2005-08-12 | 2007-02-15 | Gm Global Technology Operations, Inc. | Electrocatalyst Supports for Fuel Cells |
| CN101733083B (en) * | 2008-11-14 | 2012-05-30 | 中国石油化工股份有限公司 | Method for preparing titanium-containing catalyst carrier |
| CN103349991B (en) * | 2013-07-30 | 2015-04-08 | 重庆新华化工有限公司 | Carrier for denitration catalyst |
| CN110201656A (en) * | 2019-06-10 | 2019-09-06 | 西安向阳航天材料股份有限公司 | A kind of preparation method of TiO 2-based catalyst carrier |
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2001
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