• 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:
    In order to produce mineralic bodies of high porosity, usable inter alia as adsorbers, purifiers and catalyst carriers, a predominantly mineralic mass with organic admixtures-both preferably obtained from industrial waste products-are subjected to a three-phase treatment. In a first phase, the mass is heated in an inert or reducing atmosphere to a sintering temperature between about 1000 DEG C. and 1350 DEG C. whereby the organic constituents are carbonized and partly penetrate the consolidating mineralic structure. In a second phase, still under the same nonoxidizing atmosphere and at the sintering temperature referred to, the mineralic structure is sintered into a coherent matrix. In a third phase, with reduction of the temperature to a lower level between about 600 DEG and 1000 DEG C. and exposure to the atmosphere, the carbonaceous substances occluded in the mineralic skeleton are burned off to increase its porosity.
    公开号:SU1491562A1
    申请号:SU847773376
    申请日:1984-04-23
    公开日:1989-07-07
    发明作者:Райнер Киндер；Йоханнес Тойбель；Херберт Шустер；Кристине Фанслау
    申请人:Институт Фюр Энергетик (Центральстелле Фюр Ратионелле Энергианвендунг) (Инопредприятие)；
    IPC主号:
    专利说明:

    one
    (89) DD 242325
    (21) 7773376 / 23-26
    (22) 04.23.84
    (31) WP B 01 J 251337
    (32) 05/27/83
    (33) DD
    (46) 07.07.89. Bul 25 (71) Institute of Fyur Energetic Central-Stellale Für Ratonelle Energienwen-Dung (DD)
    (72) Kinder Rainer, Teibel Johannes, Schuster Herbert and Fanslau Christine (DD)
    (53) 661.183 (088.8)
    (54) METHOD FOR OBTAINING HIGH-POROUS MINERAL SORBENTS
    (57) The invention relates to the production of carbon mineral sorbents. Mineral substances, mainly from pockets of wastewater treatment plants, ash from electrical filters of brown coal power plants, or residues of brown coal chemical processing, are in the original state in a molded or unformed form. heat treatment, which is divided into at least three phases, namely the heating phase before reaching the plastic state at the sintering point, the holding phase at the sintering point level (both s in reducing, ie "inert conditions) and the Optional oxidation, resulting from the gasification of organic additives and carbon prisoner at temperatures significantly below the sintering, i.e. plastic state of the material, the plasticity of the material depending on the product used with varying the duration of individual phases of heat treatment is achieved at temperatures ranging from 1000 to 1200 ° C. The duration of the individual phases is chosen so that the heating phase is from 30 to 120 minutes, preferably 60 minutes, the holding phase for the reactions and the softening and degassing processes at a constant temperature is from 15 to 120 minutes, preferably 30 minutes, and oxidation and gasification ranges from 30 to 150 minutes, preferably 120 minutes. The temperature in the phase of oxidation and gasification is 600 -. The method allows to obtain sorbents of high heat resistance with a large range of pore sizes. 6 hp f-ly, 6 tablo
    g

    CD
    SP
    ABOUT
    to
    The exclusion relates to methods for producing highly porous mineral bodies with a large range of pore sizes, which are used in many fields of technology, for example, as a drying agent, catalyst carrier.
    catalyst, separation and cleaning agent and as an adsorbent, and can be used in the purification of exhaust gases and wastewater and synthesis processes in the chemical industry.
    A method for producing a carbon-mineral adsorbent is known, including high-temperature pyrolysis of organic compounds on the surface of granular inorganic oxides, with heat treatment first carried out in an inert atmosphere and then under oxidative conditions (USSR author's certificate No. 988324, class B 01 J 20/06, 1980 ).
    The disadvantage of this method is the low temperature resistance of the obtained sorbents.
    The aim of the invention is to improve the heat resistance of sorbents.
    Example 1 As the mineral substances in the initial state, ash from an electric precipitator of a brown coal power station and slots from a filter of a sewage treatment plant are used. Materials with the addition of water are pressed into briquettes, dried for 3 hours at 150 ° C, and in this form are subjected to a differentiated heat treatment (Table 1).
    EXAMPLE 2 The ash from an electrostatic precipitator undergoes various types of physico-chemical treatment and is pressed into briquettes with the addition of water. After three hours of drying at 150 ° C, a differential heat treatment is carried out (Table 2).
    EXAMPLE 3 The ash from the electrofilter is mixed with calcium sulphate in different concentrations and, after adding water, is pressed into a briquette. The drying is again carried out for 3 hours at 150 ° C, after which a differential heat treatment is carried out (platelet). H).
    Example 4, Ash from an electrostatic precipitator is mixed with various inert carbonaceous materials and pressed into briquettes, if necessary with the addition of solvents or at higher temperatures. After that, drying is carried out for 3 hours at 150 ° C. Then the materials are subjected to a differentiated heat treatment (Table 4).
    EXAMPLE 5 The ash from an electrostatic precipitator is mixed with various reactive carbonaceous materials to achieve a carbon concentration of no more than 10 wt.%, Vigorously stirred for 15 minutes with the addition of water, pressed into briquettes, dried for 3 hours at and then undergoes differentiated heat treatment
    EXAMPLE 6 The ash from an electrostatic precipitator is first mixed with reactive carbonaceous materials (not more than 5 wt.%), Reacted with water and left to dry, then mixed with an inert carbonaceous material (expediently at elevated temperature) to achieving a total carbon fraction of not more than 10 wt.%. Drying is carried out for 3 hours at which time the product is subjected to a differentiated heat treatment (Table 6).
    The technical and economic advantages of the invention are as follows: the thermal stability of sorbents 1000-1400 C (by a known method less than 1000 C), the stability of the structure and pore distribution of highly porous mineral bodies open up new possibilities for their use, which have so far been limited by temperature (for example, in high-temperature catalytic processes). The substances manufactured according to the invention eliminate the disadvantages of using known adsorbents as a uniform molecular sieve structure, limited regenerability of active alumina and silica gel, insufficient temperature and mechanical resistance, etc.
    Due to the use of the waste obtained in the chemical industry, the costs for the manufacture of adsorbents are significantly reduced, and the waste is subjected to national-level disposal. The high thermal stability of adsorbents allows their multiple regeneration and reactivation, and thus provides a significant improvement in savings compared to known mineral adsorbents.
    权利要求:
    Claims (7)
    [1]
    1. A method of producing highly porous mineral sorbites, which includes treating the mineral axis with organic matter at elevated temperature, first in an inert, then in an oxidizing atmosphere, characterized in that, in order to increase the heat resistance of sor 5I
    As a mineral base, uses ash from electrostatic precipitators of brown coal power plants or flocculants based on iron or aluminum hydroxide in wastewater treatment in combination with silicates, waste residues from chemical processing of brown coal — tar or bitumen, processed in inert are used as organic matter. the atmosphere is conducted by heating to 1000-1200 ° C with reaching a plastic state and holding it at this temperature for 60-120 minutes, and processing under oxidizing conditions is carried out before gasification of coal Erode opraHH iec- who matter at SBI-Boo S.
    [2]
    2, Method According to I,. This is due to the fact that the mineral base is previously dried, crushed, sorted and treated with alkali or acid.
    [3]
    3 "The method according to 1S-1-2, about tl and h and y and with the fact that the mineral base is pre-mixed with chlorides, sulphates or carbonates of alkaline-earth metals.
    [4]
    . The method according to claims 1-3, about tl and h ai yu and the fact that inert carbon materials in an amount up to 10 wt.% On carbon, such as oily residues, resins from chemical processes, are added to the initial mixture. coal and oil processing, while inert carbon materials are mixed with rubber waste in the presence of a solvent or at elevated temperatures,
    [5]
    5, the method according to claims 1-3, characterized in that the original
    Without Sharov ball mill processing (60 min.) 60 Screening (fraction of 0.045 mm) 60 Processing of HC1 IO min at pH 1.560
    1100 30 800 90
    1100 30 800 90, 3
    1100 30 800 90, 1
    91562
    the mixture is added with reactive carbon materials in an amount of up to 5 wt.% selected from the group of sodium stearate, molasses, sucrose,
    [6]
    6. A method according to claims, characterized in that after adding inert or reactive carbon materials to the mixture
    1Q is dried.
    [7]
    7. A process as claimed in Claims 1-6, characterized in that heating in an inert atmosphere is carried out for 3015-120 minutes, and the treatment under oxidizing conditions is 30-150 minutes.
     20
     25
    thirty
    35
    40
    Table

    60 1150 120 800 120 57
    90 1000 90 800 60 54
    120 1050 60 800 60 57
    60 1100 30
    60 1100 30
    601100 30
    601100 30
    601100 30
    Table 3
    Table 4
    60.3 67.3
    58
    Table 5
    15 15
    42 56
    eleven
    30.3 48
    15 15 15
    50.3 1 56, l 1 58.9
    25.7 41.1 61.5
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    同族专利:
    公开号 | 公开日
    FR2546512A1|1984-11-30|
    AU2870484A|1984-11-29|
    NL8401681A|1984-12-17|
    SE8402852L|1984-11-28|
    SE8402852D0|1984-05-25|
    GB2140399A|1984-11-28|
    DE3413976A1|1984-11-29|
    GB2140399B|1987-09-30|
    GB8413511D0|1984-07-04|
    JPS6051644A|1985-03-23|
    PL247840A1|1985-03-12|
    PL144335B1|1988-05-31|
    US4680153A|1987-07-14|
    RO90736A2|1987-01-30|
    DD242325A3|1987-01-28|
    AU565683B2|1987-09-24|
    BG46337A1|1989-12-15|
    RO90736B1|1987-01-31|
    BE899760A|1984-09-17|
    DE3413976C2|1990-12-06|
    引用文献:
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    US2691598A|1950-03-30|1954-10-12|Lab Annexes A L I Meurice Chim|Porous materials suitable for use as thermal and acoustic insulators and process for their manufacture|
    US2948948A|1956-12-10|1960-08-16|Babcock & Wilcox Co|Fly ash reclamation by pelletizing|
    DE1054004B|1957-01-28|1959-03-26|Asta V D Decken Geb Von Heyden|Process for the production of blue clay|
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    US3883623A|1972-10-17|1975-05-13|Gen Electric|Process for controlling end-point density of sintered uranium dioxide nuclear fuel bodies and product|
    US3917773A|1973-12-26|1975-11-04|Us Navy|Method for fabricating a shaped dielectric antenna lens|
    JPS5190995A|1975-02-07|1976-08-10|Ryujokatsuseitanno seizohoho|
    US4166145A|1975-03-10|1979-08-28|Hitco|High temperature consolidation process for the production of a substantially all carbon composite|
    US4191721A|1977-10-06|1980-03-04|General Electric Company|Making ceramic articles having a high degree of porosity and crushability characteristics|
    US4191720A|1977-10-06|1980-03-04|General Electric Company|Method for making porous, crushable core having an integral outer barrier layer|
    US4256676A|1978-11-22|1981-03-17|Kovach Julius L|Process for preparing porous metal oxide beads|
    DE2853709A1|1978-12-13|1980-07-03|Pormit Gmbh|METHOD FOR PRODUCING A POROSING AGENT|
    FI793801A|1978-12-13|1980-06-14|Pormit Gmbh|FOERFARANDE FOER FRAMSTAELLNING AV POROESA KERAMISKA FORMKROPPAR|
    AT379136B|1980-07-17|1985-11-25|Wienerberger Baustoffind Ag|METHOD FOR PRODUCING A CONCRETE AGENT|
    FR2491454B1|1980-10-03|1984-12-28|Charbonnages De France|
    FR2505816B1|1981-05-18|1985-05-31|Ceraver|PROCESS FOR MANUFACTURING A CERAMIC PART IN SINTERED CARBIDE|
    US4439382A|1981-07-27|1984-03-27|Great Lakes Carbon Corporation|Titanium diboride-graphite composites|CA1269404A|1987-11-03|1990-05-22|Mukesh K. Jain|Porous membrane of sinterable refractory metal oxides or silica|
    JPH0745348B2|1988-02-10|1995-05-17|日本碍子株式会社|Firing method of ceramic honeycomb structure|
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    US5080879A|1988-12-01|1992-01-14|Alcan International Limited|Process for producing silicon carbide platelets and the platelets so produced|
    US4994436A|1989-03-10|1991-02-19|American Air Liquide|Process for safely destroying organic binders in ceramic components during the firing process|
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    法律状态:
    优先权:
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    DD25133783A|DD242325A3|1983-05-27|1983-05-27|METHOD FOR PRODUCING HIGH-POROUS MINERAL KOERPERS WITH POLYFORMER STRUCTURE|
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