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公开(公告)号：US4772327A
公开(公告)日：1988-09-20
申请号：US790899
申请日：1985-10-24
申请人： Kurt Allemann , Klaus Deneke , Hansjurgen Hass , Gunter Vogel
发明人： Kurt Allemann , Klaus Deneke , Hansjurgen Hass , Gunter Vogel
CPC分类号： C04B28/02 , C04B28/04 , C04B2111/00146 , Y02W30/94
摘要： Disclosed is a spray concrete which, even at a water-cement ratio of 0.45 to 0.55, is still easy to work, can be sprayed well, and sets and hardens rapidly. It contains, in addition to the conventional additives, additions of naphthalinesulfonicacid-formaldehyde condensation products and highly concentrated alkaline aqueous solutions of potassium aluminate, potassium carbonate and caustic potash. The concrete according to the invention displays an especially rapid solidification when it contains up to 3% by weight alkali silicates or an adequate amount in highly dispersed silicic acid (SiO.sub.2). The additives are incorporated into the concrete preferably directly at the worksite prior to spraying.
摘要翻译： 公开了一种即使水硬度为0.45〜0.55的水泥混凝土仍然易于加工的喷雾混凝土，可以很好的喷涂，并迅速地固化和硬化。 除常规添加剂外，还含有萘磺酸 - 甲醛缩合产物和铝酸钾，碳酸钾和苛性钾的高浓度碱性水溶液。 当其含有高达3重量％的碱金属硅酸盐或足够量的高度分散的硅酸（SiO 2）时，根据本发明的混凝土显示出特别快速的凝固。 添加剂优选在喷涂之前直接混合在工厂中。
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公开(公告)号：US4504315A
公开(公告)日：1985-03-12
申请号：US582625
申请日：1984-02-22
申请人： Kurt Allemann , Klaus Deneke , Hansjurgen Hass , Gunter Vogel
发明人： Kurt Allemann , Klaus Deneke , Hansjurgen Hass , Gunter Vogel
CPC分类号： C04B28/04
摘要： The present invention relates to liquid accelerators for the setting of concrete mixtures. These accelerators have a long shelf life even in higher concentrations than the liquid accelerators known heretofore and, within the defined concentrations, produce no precipitation. The new accelerators are characterized by containing only potassium aluminate, potassium carbonate and potassium hydroxide in a defined range. They can be used in any known hydraulic binding agents, they shorten the set time of these binding agents, and they improve the compressive strength of the products made with them.
摘要翻译： 本发明涉及用于凝固混凝土混合物的液体促进剂。 这些促进剂即使在比迄今为止已知的液体促进剂更高的浓度下也具有长的保存期限，并且在规定的浓度范围内不产生沉淀。 新的促进剂的特征在于仅含有规定范围内的铝酸钾，碳酸钾和氢氧化钾。 它们可以用于任何已知的水解粘合剂，它们缩短了这些粘合剂的凝固时间，并且它们提高了用它们制备的产品的抗压强度。
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公开(公告)号：US4268485A
公开(公告)日：1981-05-19
申请号：US747137
申请日：1976-12-03
申请人： Klaus Deneke , Arnold Lenz
发明人： Klaus Deneke , Arnold Lenz
CPC分类号： G21F9/305 , C01G25/02 , C04B35/48 , C01P2006/80
摘要： A process for separating radioactive impurities from baddeleyite to obtain zirconium dioxide containing only traces of radioactive impurities, comprising grinding the baddeleyite preferably to a particle size of a maximum of 2% greater than 0.06 mm and then treating it directly with a 10 to 60% by weight aqueous alkali hydroxide solution at elevated temperatures below the boiling point of said solution at temperatures of 80.degree. to 140.degree. C. for 2 to 15 hours or until the desired degree of purity of the zirconium dioxide is obtained. In a preferred embodiment, sodium hydroxide is utilized and the ground baddeleyite preliminarily has been purified to the content of greater than 98% (zirconium dioxide+hafnium dioxide) by known methods.
摘要翻译： 一种从赤铁矿中分离放射性杂质以获得仅含有痕量放射性杂质的二氧化锆的方法，其中包括将赤铁矿优选研磨至最大2％大于0.06mm的粒度，然后直接用10〜60％ 重量的碱金属氢氧化碱水溶液在低于所述溶液沸点的温度下在80-140℃的温度下反应2至15小时或直至获得所需的二氧化锆纯度。 在一个优选的实施方案中，使用氢氧化钠，并通过已知方法预先将磨碎的地矿纯化至含量大于98％（二氧化锆+二氧化铪）。
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公开(公告)号：US3959001A
公开(公告)日：1976-05-25
申请号：US533737
申请日：1974-12-17
申请人： Helmut Clasen , Klaus Deneke
发明人： Helmut Clasen , Klaus Deneke
IPC分类号： C04B35/04 , C04B35/195 , H01B3/00 , H01B3/12 , H05B3/48
摘要： A thermally conductive refractory electrical insulating embedding composition comprising granular magnesium oxide and granular fused magnesium iron alumino silicate; and electrical heating assembly having an electrically conductive heating member and a jacket and disposed between said member and said jacket a thermally conductive refractory electrically insulating embedding composition comprising granular magnesium oxide and granular fused magnesium iron alumino silicate.
摘要翻译： 一种导热耐火电绝缘包埋组合物，其包含粒状氧化镁和粒状熔融镁铝铝硅酸盐; 和电加热组件，其具有导电加热构件和护套，并且设置在所述构件和所述护套之间，导热耐火电绝缘包埋组合物包含粒状氧化镁和粒状熔融镁铁铝硅酸盐。
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5.发明授权
公开(公告)号：US4087777A
公开(公告)日：1978-05-02
申请号：US645986
申请日：1976-01-02
申请人： Helmut Clasen , Klaus Deneke
发明人： Helmut Clasen , Klaus Deneke
摘要： A thermally conductive refractory electrical insulating embedding composition comprising granular magnesium oxide and granular fused magnesium iron alumino silicate; and electrical heating assembly having an electrically conductive heating member and a jacket and disposed between said member and said jacket a thermally conductive refractory electrically insulating embedding composition comprising granular magnesium oxide and granular fused magnesium iron alumino silicate.
摘要翻译： 一种导热耐火电绝缘包埋组合物，其包含粒状氧化镁和粒状熔融镁铝铝硅酸盐; 和电加热组件，其具有导电加热构件和护套，并且设置在所述构件和所述护套之间，导热耐火电绝缘包埋组合物包含粒状氧化镁和粒状熔融镁铁铝硅酸盐。
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