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公开(公告)号：US5262043A
公开(公告)日：1993-11-16
申请号：US869936
申请日：1992-04-17
摘要： An isotropic coal tar pitch having a low content of carcinogenic compounds is prepared by distilling a coal tar pitch in an evaporator having a specific evaporator surface of from 330 to 10,000 m.sup.2 /m.sup.3, at a temperature in the range of from 300.degree. to 380.degree. C., under a pressure not exceeding 1 mbar, whereby the average stay period is from 2 to 10 minutes. The isotropic pitch thus obtained contains less that 50 ppm of benzo[a]pyrene and is suitable, optionally after adding an oil, resin or other modifying agents having a low benzo[a]pyrene content, for use as binding and impregnating agent and also as protecting agent in construction materials or as varnish (painting agent).
摘要翻译： 具有低含量致癌化合物的各向同性煤焦油沥青通过在具有330至10,000m 2 / m 3的特定蒸发器表面的蒸发器中蒸馏煤焦油沥青而制备，温度范围为300-380℃ C.在不超过1毫巴的压力下，平均逗留时间为2至10分钟。 由此获得的各向同性沥青包含少于50ppm的苯并[a]芘，并且任选地在加入具有低苯并[a]芘含量的油，树脂或其它改性剂之后，适合用作结合和浸渍剂，并且还 作为建筑材料中的保护剂或清漆（涂漆剂）。
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公开(公告)号：US5283045A
公开(公告)日：1994-02-01
申请号：US004248
申请日：1993-01-14
CPC分类号： C10C1/00 , C04B35/528
摘要： A carbon powder is disclosed with 40 to 75% by weight QI or more than 90% by weight TI, an optical anisotropy of less than 50% by volume, a start of softening between 200.degree. and 300.degree. C., and an oxygen content of more than 2% by weight, and which can be used for without binding agent the production of shaped carbon bodies. The carbon powder is produced by means of distillation from bituminous product at a maximum of 5 mbars and a final temperature of at least 400.degree. C., grinding of the distillation residue to a particle size of less than 30 .mu.m, and oxidation of the powder into the particle core.
摘要翻译： 公开了一种碳粉，其具有40至75重量％的QI或大于90重量％的TI，光学各向异性小于50体积％，软化开始在200摄氏度至300摄氏度之间，氧含量 超过2重量％，可用于无粘结剂生产成型碳体。 碳粉通过最大5m巴的沥青产物蒸馏生成，最终温度至少为400摄氏度，蒸馏残渣研磨至小于30（m）的粒度，氧化 的粉末进入颗粒核心。
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3.发明申请公开(公告)号：US20070161496A1
公开(公告)日：2007-07-12
申请号：US10586221
申请日：2005-01-11
申请人： Christos Aneziris , Winfried Boenigk , Dmitry Borzov , Jacob Christoph , Jens Stiegert , Dirk Schnitzler , Joachim Ulbricht
发明人： Christos Aneziris , Winfried Boenigk , Dmitry Borzov , Jacob Christoph , Jens Stiegert , Dirk Schnitzler , Joachim Ulbricht
IPC分类号： C04B35/52
CPC分类号： C04B35/013 , C04B35/043 , C04B35/6269 , C04B35/63476 , C04B35/63496 , C04B2235/425 , C04B2235/5409 , C04B2235/5463 , C04B2235/608 , C04B2235/61 , C04B2235/72 , C04B2235/77 , C04B2235/9684
摘要： The invention relates to a method for manufacturing carbon-bonded refractory products from refractory granulations and organic binder agents, wherein a powdery, graphitable coal-tar pitch with a benzo [a]pyrene content less than 500 mg/kg and a coking value of at least about 80% by weight according to DIN 51905 and a graphitable binder agent liquid at room temperature, with a coking value of at least about 15% by weight and a benzo[a]pyrene content less than 500 ppm according to DIN 51905, are used as organic binder agent, mixed with the remaining constituents, transferred to a mould body, then heat treated at a temperature of 150 to about 400° C.
摘要翻译： 本发明涉及一种由耐火颗粒和有机粘合剂制造碳键合的耐火产品的方法，其中苯并[a]芘含量小于500mg / kg的粉末状可曲面的煤焦油沥青，焦化值为 根据DIN 51905至少约80重量％和在室温下的可刻蚀的粘合剂液体，焦化值至少为约15重量％，根据DIN 51905的苯并[a]芘含量小于500ppm，分别为 用作有机粘合剂，与剩余组分混合，转移到模具体中，然后在150至约400℃的温度下进行热处理。
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公开(公告)号：US20110275505A1
公开(公告)日：2011-11-10
申请号：US13131651
申请日：2009-11-20
IPC分类号： C04B35/528 , C08L61/00
CPC分类号： C04B35/6263 , C01B32/05 , C04B35/6261 , C04B35/62655 , C04B35/62695 , C04B35/63416 , C04B35/63488 , C04B2235/528 , C04B2235/5436 , C04B2235/608 , C04B2235/61 , C04B2235/77 , C10C1/04 , Y10T428/2982
摘要： In a continuous method for production of a semicoke powder with high bulk density and flowability, a sinterable carbon powder (semicoke) is dispersed in water with addition of at least one binder and at least one liquefier, wherein the proportion of carbon in the dispersion is adjusted to at least 50 wt. %, relative to the mass of the dispersion, and the zeta potential of the dispersion is adjusted to less than −50 mV, the dispersion is submitted to homogenisation and stabilisation by continuous wet grinding with a residence time in the mill of less than 3 minutes and the homogeneous dispersion is spray-dried.
摘要翻译： 在生产具有高堆积密度和流动性的半焦粉末的连续方法中，将可烧结碳粉末（半焦）分散在水中，加入至少一种粘合剂和至少一种液化器，其中分散体中碳的比例为 调至至少50wt。 相对于分散体的质量，并且将分散体的ζ电位调节至小于-50mV，通过连续湿式研磨使分散体进行均化和稳定化，在研磨机中的停留时间小于3分钟 将均匀分散体喷雾干燥。
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公开(公告)号：US4943365A
公开(公告)日：1990-07-24
申请号：US23646
申请日：1987-03-09
CPC分类号： C10C3/026
摘要： Contrary to known alkylation of pitches, it is disclosed that pitches are modified with particular aromatically substituted and activated C.sub.1 to C.sub.4 alkyl groups. The resulting modified pitches are easily polycondensed and give high coking residues and good mesophase formation. This is achieved on the one hand by dispensing with catalysts, which can be only incompletely removed from the pitch and, on the other hand, by employing reactive short chain alkyl aromatic compounds.
摘要翻译： 与已知的间距烷基化相反，公开了用特定芳香取代和活化的C1至C4烷基修饰间距。 所得改性沥青容易缩聚并提供高焦化残留物和良好的中间相形成。 这一方面通过分配催化剂实现，催化剂可以仅从沥青中不完全去除，另一方面通过使用反应性短链烷基芳族化合物。
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公开(公告)号：US08613801B2
公开(公告)日：2013-12-24
申请号：US13131651
申请日：2009-11-20
IPC分类号： C09C1/44
CPC分类号： C04B35/6263 , C01B32/05 , C04B35/6261 , C04B35/62655 , C04B35/62695 , C04B35/63416 , C04B35/63488 , C04B2235/528 , C04B2235/5436 , C04B2235/608 , C04B2235/61 , C04B2235/77 , C10C1/04 , Y10T428/2982
摘要： In a continuous method for production of a semicoke powder with high bulk density and flowability, a sinterable carbon powder (semicoke) is dispersed in water with addition of at least one binder and at least one liquefier, wherein the proportion of carbon in the dispersion is adjusted to at least 50 wt. %, relative to the mass of the dispersion, and the zeta potential of the dispersion is adjusted to less than −50 mV, the dispersion is submitted to homogenization and stabilization by continuous wet grinding with a residence time in the mill of less than 3 minutes and the homogeneous dispersion is spray-dried.
摘要翻译： 在生产具有高堆积密度和流动性的半焦粉末的连续方法中，将可烧结碳粉末（半焦）分散在水中，加入至少一种粘合剂和至少一种液化器，其中分散体中碳的比例为 调至至少50wt。 相对于分散体的质量，并且将分散体的ζ电位调节至小于-50mV，通过连续湿式研磨使分散体在磨机中停留时间小于3分钟进行均化和稳定化 将均匀分散体喷雾干燥。
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