• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A process is disclosed for the beneficiation of coal by means of selective agglomeration, wherein an agglomerating blend is used, which is constituted by:- one or more main agglomerating agent(s), selected from the light hydrocarbons having a boiling temperature not higher than 70°C,- one or more non-ionic additive(s), selected from oil-­soluble ethoxylated compounds;- one or more heavy co-agglomerating agent(s) selected from oils deriving from the distillation of coal-tar, having a boiling temperature comprised within the range of from 200 to 400°C or the residual products from oil processing or blends thereof.
    公开号:SU1709914A3
    申请号:SU874203730
    申请日:1987-11-10
    公开日:1992-01-30
    发明作者:Рассарини Нелло；Веттор Антонио
    申请人:Эниричерке С.П.А. (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to solid carbon fuel technology, in particular, to a method for enriching coal by selective agglomeration.
    The aim of the invention is to increase the efficiency of the removal of ash from coal, the output of the calorific value of coal and the reduction in the duration of the process.
    The method is carried out as follows. . ,
    The coal is crushed to no more than мм mm (preferably not more than 1 mm), the crushed coal is dispersed in water at a concentration of 5-30 May. by dispersion, an agglomerating mixture is added to the resulting dispersion (separately or as a previously prepared aqueous emulsion), the dispersion is intensively stirred to stabilize and grow the coalescence products
    within 1-10 min; agglomerates are separated from inorganic, dispersed in the aqueous phase, by sieving and, if necessary, washing the agglomerate or by removing
    top layer, or by decanting. J -. .. -...
    The positive effect of the method is evaluated by the removal efficiency of the inergy. of the physical phase and the duration of agglomeration (referring to the phase of high final shift, the time of the low final shift will always be the same).
    权利要求:
    Claims (3)
    [1]
    The first parameter is determined by the amount that takes into account the weighed yield (BB) and the ash content in the coal before and after processing, and an efficiency indicator is obtained (PE X removed ash content / enriched ash content. Weighed yield is calculated as follows: BB mass enriched , washed dry coal / untreated carbon mass. High PE corresponds to successful processing cases. Calorific value yield (CTS) is estimated on the basis of a dry and mineral-free substance using the formula: CTS CENTURIES x 100 - enriched for ash / 100 - ash. With the use of BTS and PE values, it is possible to check the suitability of the proposed agglomerating mixture with respect to known mixtures. Example 1. Russian bituminous coal containing 15 masd of ash is crushed to 750 microns. 40 g This product is dispersed in 1 BO ml of water and stirred for 50 minutes to maximize dispersion of the inorganic substance. With vigorous stirring, 15 wt.% of the agglomerated mixture is added to the coal. This agglomerating mixture is composed as follows: light hydrocarbon — p-pentane (boiling point), heavy hydrocarbon — liquid anthracene oil (obtained from paste-like anthracene oil), and ethoxylated nonyl phenol, including 3 ethoxy groups, For their ratio, 05 pas mass, respectively. The agglomeration is started after 10 s, vigorous stirring (1800 rpm) is maintained for 2 minutes, after which, by reducing the stirring speed to 800 rpm, the stirring is continued for another 3 minutes. Agglomerated coal (size 1-2 mm) is removed by sieving. The output of enriched coal 82-86 wt.%. The results are shown in Table. 1. Examples 2-5 (comparative) Russian bituminous coal in Example 1, ground to 750 microns (maximum), is treated under the conditions of Example 1, and the agglomerating additives are changed. I In example 2, use only p-pentane in quantities of 15, 30 and 50 wt. for coal, the mixing time is up to 1 hour; in Example 3, 15 wt. coal of agglomerated mixture consisting of liquid anthracene oil (50% by weight) and p-pentane (50% by weight); In the example, use only liquid anthracene oil in an amount of 10 wt. | in coal, in example 5 — oil distillates (kerosene gaisol) in quantities of 10, 30, and 50 wt. for coal with agitation up to 1 h. The results are given in tibl, 1, Example 6. iliO g of the coal in example 1 is crushed to 200 μm and processed in example 1, the treatment time is changed (7 min) and The composition of the agglomerating mixture, which includes: p-pentaN, liquid anthracene oil (obtained from paste-like oil), 3 Eononylphenol at a weight ratio of 14: 1: 0.1, respectively. The results can be summarized as follows: Calorific yield, 96.8 Ash, May.% 3.1 PE. 2073 EXAMPLE 7: Compared with Example 6, only the composition of the agglomerating mixture p - pentane, liquid anthracene oil (obtained from paste-like oil), 3-EO nonylphenol at a mass ratio of 14: 2: 0.1, respectively, was changed. The results can be summarized as follows: Calorific yield; abilities, 99 Ash, wt.2,9 PE.2484 Example 8. Compared with example 1, only the composition of the agglomerated mixture was changed: n - pentane, crude anthracene oil of first boiling (pasty consistency), 3-EO nonylphenol at mass ratio of 14: 1: 0.1, respectively. The results can be summarized as follows: Heat yield,% 9b, 3 Ash, wt.% 3.4 PE1940 Example9. Compared with example 1, only the composition of the agglomerating mixture was changed: p - pentane, gas 5170991 oil, nonylphenol at the And: 1: 0.1 weight ratio, respectively. The following results were obtained: Output by calorific value,% 98.8 Ash, wt.% PE, 2276 PRI me R 10, Compared with measure 1, Polish bituminous coal with ash content of 10.5 was obtained. The following results were obtained: calorific value98.5 - 15 i Ash content, May 3.8 PE, 1012 Total mixing time, min 3 P r and measures 11. 20 the same amount of Russian coal was processed as in. Example 1, with 15 agglomerated coal phase, which consisted of p-pentane, anthracene oil and ethoxylated nonylphenol with 25 3 E toxyl groups, with a mass ratio of 5, respectively. The agglomeration time was drastically reduced: the agglomeration began after about 10 s, the agglomeration time (strong shift) was 2 minutes, and the conditions of weak shift were maintained for another 3 minutes. The following results were obtained:, Output on heat-35 creative ability ,. 9.7 Ash content, wt.% 3.0 PE- 2033 Example 12. In contrast to example 11, the unreleased residue of vacuum distillation added from oil, added to the amount of 1 wt.% for coal. The following results were obtained: 45 Output by calorific value,% 96.0 Ash content, wt. 3.2 PE2028 P. 13. As in Example 1, 50, but with the following changes: coal is Colombian and has an initial ash content of 2%, the composition of the agglomerating mixture: 5 wt.1 relative to coal (% relative to to 55- suspension) of petroleum ether (boiling point 30-70 ° C), 0.02% with respect to coal (0.004 wt. to suspension) of ethoxylated dodecyl cellulose nosocoupling In addition, it used 6 a with 4 ethoxy groups, 0.2% by coal and 0 percent by weight of mazut. Agglomeration time 3 min at eye shift, 3 min at low yoke. The following results were obtained: Output in calorific value (VTS),% 96.5 Ash,% 2.8 PE22k7 Example p. As in Example 13, the fuel oil is replaced by a 1: 1 mixture of Tratsen and gas washing ma. The following results were obtained: VTS, weight: 95.8 Ash, wt.% 3.0 PE2027 Example 15. As in example 13, coal is from Venezuela with initial ash content 9, and fuel oil is replaced by a mixture of atmospheric residues races and, remnants of vacuum peonies. The following results were obtained: VTS, 97.0 Ash content, 2.1 PE. PRI me R 16. Technical ameansky bituminous coal, 11.2 ash of ash, is crushed to an hour size of 50 μm or less and is formed in example 1, but the agglomerate mixture contains (per e) wt.%: P-Goksan ( boiling point,) 5 Acetylphenol ethoxylated with three ethoxy groups, OT Oil fuel oil (viscosity according to Engler at 50 ° C is 50 ° E). Sintering time is 5 minutes. The following results were obtained: Output in calorific value coal, 9b, 8 Ash content, A, 5 Efficiency indicator (PE) IZO Examples 17-19 (comparative) use the same conditions as in the measure l6, but instead of the ethoxylated additive enter the same petroleum 71 fuel concentration: 0.2 masd per coal for Example 17; 0.7 May. D1z of Example 18-1 May for Example 19. The results are shown in Table. 2. According to the data provided in the examples and Table 1 and 2, according to the proposed method, the efficiency of removing ash from coal is more effective, and the calorific value of coal is more efficient while reducing the duration of the agglomeration process as compared to the known agglomerated mixtures. With the mixture according to example t, it is possible to agglomerate even coals that have much worse surface characteristics and are not agglomerated even with liquids that have high bridging properties, such as kerosene (example 5). Claim 1, A method of coal enrichment, which includes adding a sinter mixture containing light hydrocarbons with a boiling point to the same | first hydrocarbons with a boiling point of 200 tOO C and dispersing agglomerates with an aqueous solution of an agglomerate of carbon; By the fact that, in order to increase the efficiency of ash removal, coal calorific yield, and shorten the process time, oil-soluble ethoxylated is additionally introduced into the agglomerating mixture. s alkylphenols in amount of 0.011 Maeda coal.
    [2]
    2. A process according to claim 1, characterized in that ethoxylated alkylphenols are used with alkyl groups with 8-12 carbon atoms and ethoxylate groups.
    [3]
    3. Method according to paragraphs. 1 and 2, characterized in that ethoxylated alkylphenol is used as ethoxylated alkylphenol or ethoxylated nonylphenol with 3 or ethoxylic groups. k. The method according to claim 1, about tl and h ayu and the fact that use light hydrocarbons in an amount of 550 wt.% From coal and heavy hydrocarbons in an amount of 0.2-3 wt.% From coal. 5. The method according to paragraphs. 1 and characterized in that petroleum ether is used as a light hydrocarbon and anthracene oil, petroleum distillates, petroleum residues, petroleum fuel — mazut, and creosote oil are used as heavy hydrocarbons. Table 1
    Routes
    1307
    97.7
    97.6
    Not agglomerated
    5 5 To 60
    5.1 6.5
    97.0 96.5 97.1
    table 2
    1360
    20 15 15 1130 1020
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    同族专利:
    公开号 | 公开日
    EP0267652A3|1990-03-07|
    ZA878323B|1988-05-03|
    AU588717B2|1989-09-21|
    IT8622286D0|1986-11-11|
    AU8093187A|1988-05-12|
    IT1213375B|1989-12-20|
    CA1294912C|1992-01-28|
    PL158252B1|1992-08-31|
    JPS63134069A|1988-06-06|
    ES2032434T3|1993-02-16|
    JPH0798955B2|1995-10-25|
    PL268736A1|1988-08-18|
    AT74800T|1992-05-15|
    EP0267652B1|1992-04-15|
    EP0267652A2|1988-05-18|
    GR3004480T3|1993-03-31|
    DE3778302D1|1992-05-21|
    US4776859A|1988-10-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2944690C2|1979-11-06|1983-10-06|Ruetgerswerke Ag, 6000 Frankfurt|Binder for coal briquettes|
    US4412839A|1979-11-13|1983-11-01|Ergon, Inc.|Coal treatment process|
    US4331447A|1980-03-04|1982-05-25|Sanyo Chemical Industries, Ltd.|Coal treatment for ash removal and agglomeration|
    JPH0142996B2|1980-08-18|1989-09-18|Idemitsu Kosan Co|
    JPS588719B2|1981-04-09|1983-02-17|Mitsui Shipbuilding Eng|
    AU555453B2|1981-12-14|1986-09-25|Chevron Research Company|Beneficiation for separation|
    GB2131323B|1982-05-27|1986-07-02|Otisca Ind Ltd|Methods for processing coal|
    US4498905A|1983-10-31|1985-02-12|Atlantic Richfield Company|Method for deactivating and controlling the dusting tendencies of dried particulate lower rank coal|
    CA1216551A|1984-05-23|1987-01-13|Her Majesty The Queen In Right Of The Province Of Alberta As Represented By The Minister Of Energy And Natural Resources|Process for the selective agglomeration of sub- bituminous coal fines|IT1223488B|1987-12-16|1990-09-19|Eniricerche Spa|PROCESS FOR THE REFINING OF THE COAL BY MEANS OF A SELECTIVE AGGLOMERATION|
    IT1223487B|1987-12-16|1990-09-19|Eniricerche Spa|COAL REFINING PROCEDURE BY SELECTIVE AGGLOMERATION|
    US5078899A|1990-05-01|1992-01-07|Idaho Research Foundation, Inc.|Treating mine water|
    CA2101830A1|1992-08-27|1994-02-28|Richard D. Coleman|Agglomeration of oil/coal coprocessing feed coal using mixture of coprocessing product oil and heavy oil as bridging agent|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT8622286A|IT1213375B|1986-11-11|1986-11-11|COAL REFINING PROCEDURE BY SELECTIVE AGGLOMERATION.|
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