WO1993024408A1 - Method of producing active carbon from waste tires - Google Patents
Method of producing active carbon from waste tires Download PDFInfo
- Publication number
- WO1993024408A1 WO1993024408A1 PCT/JP1993/000707 JP9300707W WO9324408A1 WO 1993024408 A1 WO1993024408 A1 WO 1993024408A1 JP 9300707 W JP9300707 W JP 9300707W WO 9324408 A1 WO9324408 A1 WO 9324408A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- activated carbon
- hydrochloric acid
- adsorption
- waste
- activated
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
Definitions
- the present invention relates to a method for producing activated carbon using waste tires as a raw material.
- An object of the present invention is to provide a method for producing harmless and inexpensive activated carbon using waste tires as a raw material and containing no heavy metal components.
- FIG. 1 is a schematic diagram of an activation treatment apparatus.
- FIG. 2 is a graph showing the pore size distribution of the activated sample obtained in Example 1 (1).
- Figure 3 is a graph showing the adsorption isotherm of DBS.
- Figure 4 is a graph showing the adsorption isotherm of phenol.
- Figure 5 is a graph showing the adsorption isotherm of simazine.
- FIG. 6 is a graph showing the adsorption isotherm of diazinon. 7, "O 0 because in graph showing the adsorption isotherm of full We two preparative Rochio down
- the inventor of the present invention did not impair the activity of activated carbon by performing activation treatment and washing with hydrochloric acid on waste tire carbonized carbon containing heavy metals. Found that heavy metal components can be removed effectively That is, the present invention provides a method for producing activated carbon, characterized in that a waste carbon dry distillation channel is activated and then washed with hydrochloric acid.
- the present invention provides a method for producing activated carbon, which comprises activating a waste tire carbonized cleaning channel after washing it with hydrochloric acid.
- the waste tire carbonization chamber used in the present invention is not particularly limited. For example, it thermally decomposes under normal pressure, at a temperature of 450-550 ° C, and in an inert gas (for example, nitrogen gas) atmosphere. It is manufactured by this.
- an inert gas for example, nitrogen gas
- the temperature of hydrochloric acid used for the treatment of waste tire dry carbonization is, for example, about 1 to 10%, preferably about 2 to 5%, and the temperature of hydrochloric acid is room temperature to about 80 ° C, preferably. The temperature is about 70-80 ° C, and the duration of the hydrochloric acid treatment is about 1-24 hours, preferably about 2 hours.
- wash with water or dilute alcohol After the hydrochloric acid treatment, wash with water or dilute alcohol.
- the conditions and number of washings are determined by the conditions of the hydrochloric acid treatment, particularly the concentration of hydrochloric acid. This condition is similarly applied to activated carbon obtained by activating activated carbon from waste tire carbonization. If an acid other than hydrochloric acid, for example, sulfuric acid or nitric acid, is used as the acid component, these acids tend to remain in the activated carbon, which is not preferable.
- Untreated waste tire carbonized waste and hydrochloric acid treated waste can be performed by a conventional method.
- steam activation for example, at a temperature of about 700 to 100 ° C. in an atmosphere of an inert gas such as nitrogen or argon.
- an inert gas such as nitrogen or argon.
- it can be carried out under the conditions of about 800 to 850 ° C, the activation time of about 4 to 8 hours, and preferably about 5 to 6 hours.
- the metal component in activated carbon can be removed by a simple method and without reducing the yield and adsorption activity of activated carbon. It has become possible to simultaneously provide a method and an inexpensive method for producing activated carbon. It was also revealed that the activated carbon produced by this method had enough performance to be used for applications such as water treatment.
- the waste tire carbonized char obtained by the conventional method was dried at 110 ° C for 2 hours, and the batch type external heat type rotary kiln shown in Fig. 1 was used.
- Nitrogen gas flow rate 500 ml
- Waste tire carbonized char 50 g
- Furnace rotation speed 2 rpm.
- the specimen was cooled with nitrogen gas.
- the activated product obtained by the above method was pulverized to less than 1.40 mm (12 mesh), and 1% HC1, 2% HC1 and 5% HC1 were added to 15 g thereof, respectively. After stirring for an hour, suction filtration was performed. Each of the three activated products was transferred to a separate beaker, purified water was added, the mixture was stirred at room temperature for 30 minutes, and filtered. This washing operation was repeated three times, and the activated product was washed with purified water. The activated product from which the metal component was removed was dried at 110 ° C., and then pulverized to 250 / X m (60 mesh) or less to obtain an activated carbon sample.
- Example 1 An activated carbon sample was obtained in the same manner as in Example 1 except that purified water was used in place of 1% HCl in Example 1 (2).
- Example 1 1% HC1 used in the hydrochloric acid treatment in Example 1 (2) was replaced with 80% each at room temperature. 1% HC 1, 2% HC 1 and The same procedure as in Example 1 was carried out except that stirring in each hydrochloric acid aqueous solution was performed while maintaining the temperature at 80 ° C on a sand bath using 5% HC1, and washing was performed using hot water. An activated carbon sample was obtained.
- Example 4 An activated carbon sample was obtained in the same manner as in Example 4, except that the purified water at 80 ° C was used instead of the 80% 1% HC1 used for the hydrochloric acid treatment and washing in (2). .
- the waste tire carbonized charcoal obtained by a conventional method is sieved with a standard sieve into a 4 ⁇ 12 mesh, dried with 110 for 2 hours, and 100 g of the dried charcoal is dissolved in 1% hydrochloric acid and 5% hydrochloric acid. Each was added. At each concentration, the hydrochloric acid treatment was left for 1 hour or 24 hours, and a total of 4 types of hydrochloric acid treatments were performed. After each hydrochloric acid treatment, the dried product was suction-filtered with a glass fiber filter paper. Thereafter, the washing operation was repeated three times in the same manner as in Example 1 (2), and then dried at 110 ° C. for 2 hours to obtain a carbonized charcoal from which metal components had been removed.
- Nitrogen gas flow rate 500 ml / min
- Carbonized char (after removing metal components): 50 g,
- Furnace rotation speed 2 rpm.
- the activated product obtained after cooling the furnace with nitrogen gas was measured for physical properties such as adsorption performance.
- the measurement was performed by automatic measurement using a 180 type.
- the analysis of zinc was specifically performed as follows. That is, 3 g of a carbon sample (activated carbon or charcoal) is made up to 100 times the pH 4 water (8 ml of nitric acid (specific gravity 1.38)) with water, and then to 1000 times. 150 ml was added, and the mixture was boiled for 10 minutes. After cooling, water was added to make 150 ml, followed by filtration. The first 30 ml of the lysate was discarded, and the remaining lysate was subjected to zinc analysis.
- a carbon sample activated carbon or charcoal
- the ash content was measured by taking about 1 g of carbon in a magnetic crucible and incineration at 800 or more at a temperature above.
- the obtained ash was dissolved in (1: 1) HC140 ml, transferred to a beaker and concentrated by heating to 10 ml. This was filtered, and the filtrate was put in a 50 ml meslasco volume, and the amount of zinc was analyzed by an atomic absorption method.
- FIG. 2 shows the pore size distribution of the activated sample obtained in Example 1 (1).
- Example 1 Performance Item measurement values of activated sample obtained in ® ⁇ iodine adsorption D 1 3 mg / g menu Chi les Nburu decolorizing 9 0 m 1 Z g surface area 3 2 2 m 2 / g pore Pore volume 0-19 m 1 / g Ash content 6.8%
- Example 4 (2) Heat 1% HC 1 3.1 0
- Example 5 (2) Heat 2% HC 1 3.0 (Zn 0.583 ⁇ 4 in ash)
- Example 6 (2) Heat 5% HC 1 2.17 (Fe 0.0943 ⁇ 4 in ash)
- J WWA means that it was obtained in accordance with Japan Water Works Association Standard K113. As is evident from the results in Table 3, the amount of Zn eluted is much lower than the standard value for food additive method (100 ppm) and the standard value for activated carbon for water supply (50 ppm). I have.
- Example 1 (1) Since the above cleaning effect may be affected by ash, the activated product of Example 1 (1) was crushed to 250 / zm (60 mesh) or less and the hydrochloric acid cleaning test was performed in the same manner as above. Went. Table 4 shows the results.
- a liquid phase adsorption test was performed on the activated carbon sample obtained in Example 1 and a commercially available coal-based activated carbon as a comparative product.
- the test was conducted for the dilution of each of the surfactants (sodium p-n-dodecylbenzenesulfonate (DBS)), phenol, and pesticides (simazine, dianidine, sumithion).
- the determination was performed by measuring the adsorption isotherm at 25 ° C for the aqueous solution.
- surfactants (DBS) and phenol are conducted in accordance with the method specified in the Japan Water Works Association Standard (JWWA K113), and the same method is applied to pesticides. Performed by the method.
- the quantification was based on the ultraviolet absorption method.
- the activated carbon sample used was ground to less than 200 mesh and dried at 110 ° C for 2 hours.
- the amount of adsorption Q is given by
- Q adsorption amount (mg / g :), V: liquid volume (mL), W: activated carbon weight (mg), C0: initial concentration (mg / L), C: equilibrium concentration (mg / L).
- the liquid volume was 100 m 1, the initial concentration was 1 to: L Op pm, and the amount of activated carbon was added to be an appropriate amount depending on the adsorbate.
- Adsorbate diazinon Temperature: 25 ° C
- the activated carbon produced according to the present invention has an adsorption capacity of 1Z3 to 1 Z6 of commercially available coal-based activated carbon except for phenol, and It showed activity comparable to that of commercial charcoal-based activated carbon. From these results, it has been clarified that the method of the present invention can provide inexpensively activated carbon that can be sufficiently used for applications such as water treatment.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Processing Of Solid Wastes (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69330678T DE69330678T2 (de) | 1992-05-27 | 1993-05-27 | Verfahren zur herstellung von aktivkohle ausgehend von gebrauchten reifen |
EP93910402A EP0663370B1 (en) | 1992-05-27 | 1993-05-27 | Method of producing active carbon from waste tires |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13487292 | 1992-05-27 | ||
JP4/134872 | 1992-05-27 | ||
JP29556292A JP3376431B2 (ja) | 1992-11-05 | 1992-11-05 | 廃タイヤを原料とする活性炭の製造方法 |
JP4/295562 | 1992-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993024408A1 true WO1993024408A1 (en) | 1993-12-09 |
Family
ID=26468854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000707 WO1993024408A1 (en) | 1992-05-27 | 1993-05-27 | Method of producing active carbon from waste tires |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0663370B1 (ja) |
AU (1) | AU4089993A (ja) |
DE (1) | DE69330678T2 (ja) |
WO (1) | WO1993024408A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100744984B1 (ko) * | 1999-11-16 | 2007-08-02 | 혼다 기켄 고교 가부시키가이샤 | 전기 이중층 캐패시터용 전극 및 그것의 제조 방법 |
WO2001049604A1 (en) * | 2000-01-03 | 2001-07-12 | Katz, Raul | A process for preparing activated carbon from urban waste |
TWI288025B (en) | 2000-09-14 | 2007-10-11 | Showa Denko Kk | Adsorbent for purifying perfluorocarbon, process for producing same, high purity octafluoropropane and octafluorocyclobutane, and use thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102595A (ja) * | 1973-02-05 | 1974-09-27 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50116385A (ja) * | 1974-02-26 | 1975-09-11 | ||
DE2731862C2 (de) * | 1977-07-14 | 1979-01-04 | Rupert Hoell | Verfahren zur Gewinnung von Zink- und Eisenverbindungen aus dem Rückstand einer Altgummipyrolyse insbesondere von Altreifen |
GB8923361D0 (en) * | 1989-10-17 | 1989-12-06 | Holland Kenneth M | Active carbon |
-
1993
- 1993-05-27 DE DE69330678T patent/DE69330678T2/de not_active Expired - Fee Related
- 1993-05-27 WO PCT/JP1993/000707 patent/WO1993024408A1/ja active IP Right Grant
- 1993-05-27 AU AU40899/93A patent/AU4089993A/en not_active Abandoned
- 1993-05-27 EP EP93910402A patent/EP0663370B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102595A (ja) * | 1973-02-05 | 1974-09-27 |
Non-Patent Citations (2)
Title |
---|
Carbon Material Society, "Activated Carbon - Basics and Applications", September 1, 1978 (01.09.78), Kodansha K.K. (Tokyo), p. 103-106. * |
See also references of EP0663370A4 * |
Also Published As
Publication number | Publication date |
---|---|
DE69330678T2 (de) | 2002-04-18 |
EP0663370A1 (en) | 1995-07-19 |
AU4089993A (en) | 1993-12-30 |
DE69330678D1 (de) | 2001-10-04 |
EP0663370A4 (en) | 1995-10-11 |
EP0663370B1 (en) | 2001-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016072932A1 (en) | Activated carbon, hydrochar and processes for making same | |
CN106732358B (zh) | 一种负载氧化铁的生物质碳化微球及其制备和应用 | |
IDRIS et al. | Evaluation of kinetic models of copper and lead uptake from dye wastewater by activated pride of barbados shell | |
CN102001656A (zh) | 一种以稻壳为原料制备高吸附性活性炭的方法 | |
Ash et al. | Characterization and application of activated carbon prepared from waste coir pith | |
CN1277742C (zh) | 一种颗粒活性炭的制造方法 | |
RU2445156C1 (ru) | Способ получения ферромагнитного углеродного адсорбента | |
WO1993024408A1 (en) | Method of producing active carbon from waste tires | |
US6225256B1 (en) | Activated carbon feedstock | |
JP3376431B2 (ja) | 廃タイヤを原料とする活性炭の製造方法 | |
JP2003342014A (ja) | 活性炭及びその製法 | |
Miller | Adsorption from Solution by Ash-free Charcoals. I | |
JP5863532B2 (ja) | 活性炭及びその製造方法 | |
JP2001170482A (ja) | 活性炭及びその製造方法並びにそれを使用した水の浄化処理装置 | |
CA2008242C (en) | Microwave activation of carbon | |
JP3138749B2 (ja) | 植物資材による脱臭能、イオン交換能、触媒能を有する炭化物製造方法 | |
JP3132962B2 (ja) | 改質活性炭の製造方法 | |
JP6719709B2 (ja) | 活性炭 | |
JP2007237169A (ja) | 液相処理用吸着剤及びその製法 | |
Yang et al. | Study on coconut shell activated carbon temperature swing adsorption of benzene and formaldehyde | |
JPS6035289B2 (ja) | 貴金属塩の回収方法 | |
JP5872186B2 (ja) | 放射性金属吸着剤の製造法及び放射性金属の吸着法 | |
JPS60172348A (ja) | 海水中のウランや工業廃水中の重金属イオンなどの捕集剤並びにその製造法 | |
JPH0531487B2 (ja) | ||
JPH0560825B2 (ja) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA KR RU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1993910402 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: US Ref document number: 1995 367167 Date of ref document: 19950106 Kind code of ref document: A Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 1993910402 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWG | Wipo information: grant in national office |
Ref document number: 1993910402 Country of ref document: EP |