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    • 1. 发明公开
    • PRODUCTION METHOD AND CEMENT COMPOSITIONS WHICH RAPIDLY ACQUIRE GOOD STRENGTH AND WHICH ARE RESISTANT TO CORROSION
    • 方法和黏结剂组合物快速良好的耐REACH,耐腐蚀ARE
    • EP1955984A1
    • 2008-08-13
    • EP06824233.8
    • 2006-11-30
    • CONCRETOS TRANSLÜCIDOS, S. de R.L. de C.V.
    • GALVÁN CÁZARES, Sergio OmarSOSA, GUTIÉRREZ, Joel
    • C04B7/02C04B7/04C04B7/06
    • C04B28/04C04B7/02C04B7/246C04B7/32C04B2111/26Y02P40/145C04B24/06C04B2103/0025
    • The invention relates to a method for producing a cement which rapidly acquires good strength and which Is resistant to corrosion, using a novel chemical production technology. The inventive method can be used to produce cements having properties rendering same suitable for use in diverse fields including the construction of oil wells, pipelines, etc. The invention also relates to a Portland-type cement which rapidly acquires mechanical strength, which has a shelf-life of up to 20 years under normal service conditions and which contains 4% molybdenum trioxide. The inventive cement is characterised in that it has a fineness of more than 4200 cm2/g. The invention is also characterised in that the cement has a minimum strength of 900 psi at 100° F for 8 hours from the moment of setting and in that the cement has a minimum strength of 2000 psi at 140° F after 8 hours from setting, without the addition of any additives, which enables the water reduction necessary in order to achieve a predetermined slump.
    • 本发明涉及一种用于制造水泥可迅速获得良好的强度和耐腐蚀,使用一种新的化工生产技术。 本发明的方法可以用来生产具有特性渲染相同适用于包括油井,管线,等等。因此,本发明涉及一种波特兰水泥类型可迅速获取的机械强度,其中有一个搁板的结构不同领域使用的水泥 长达20年的正常使用条件下和的 - 生命中含有4%的三氧化钼。 本发明的水泥DASS它具有超过4200平方厘米/克的细度。 因此,本发明在DASS水泥为特征的具有从设置在8小时后的900磅100°F用于从设定的时刻8小时,在DASS水泥的最小强度具有2000psi的最小强度140°F, 不加入任何添加剂的,这使得能够以实现预定的坍落度的水减少必要。
    • 4. 发明公开
    • VERFAHREN ZUR ABTRENNUNG VON ALUMINIUM BEI DER CALCIUMSILIKATPRODUKTION
    • EP3201134A1
    • 2017-08-09
    • EP15734065.4
    • 2015-06-18
    • Karlsruher Institut für Technologie
    • HUNSINGER, HansWARZYCHA, Karolina
    • C01B33/24C01D7/07C01F7/20C01F7/34C04B7/24C04B7/06B01D11/02B01J6/00B01J8/00C22B1/00
    • C01B33/24C01D7/07C01F7/14C01F7/142C04B7/24C04B7/3453C04B7/42Y02P20/142Y02P40/145Y02P40/148
    • The invention relates to a method for separating aluminum during calcium silicate production from mineral feed materials (3) comprising mineral raw materials and residual materials, comprising the comminution and mixing (1) of the feed materials with alkali carbonates (2) to form a material mixture (4), calcination (5) of the material mixture with a CO
      2 partial pressure between 0.05 and 0.2 MPa at 850 to 1100°C, wherein CO
      2 (6) is released and a calcined product (7) consisting of water-insoluble calcium silicates and water-soluble aluminum compounds is formed, a first elution (8) of the calcined product with water (9) or a liquid aqueous alkali hydroxide and/or alkali carbonate solution in a temperature range of between 0 and 100°C, wherein aluminum in the form of alkali aluminates (alkali Al (OH)
      4 ) is dissolved, solid/liquid separation of the dissolved alkali aluminates into a solution (10) rich in alkali Al (OH)
      4 and an alkali-containing solid (11a) rich in calcium silicate, and precipitation (12) and separation of aluminum hydroxide Al (OH)
      3 (13) from the solution rich in alkali Al (OH)
      4 by adding seed crystals and/or by adding CO
      2 or a gas containing CO
      2 , wherein alkali hydroxides and/or alkali carbonates (14) are formed and remain in the solution.
    • 本发明涉及一种在生产硅酸钙期间从包含矿物原料和残余物质的矿物原料(3)中分离铝的方法,包括将原料与碱金属碳酸盐(2)粉碎并混合(1)以形成物质 混合物(4),在850至1100℃下具有0.05至0.2MPa的CO 2分压的材料混合物的煅烧(5),其中释放CO 2(6)和由水不溶性钙组成的煅烧产物(7) 硅酸盐和水溶性铝化合物,在0至100℃的温度范围内,用水(9)或液体碱金属氢氧化物水溶液和/或碱金属碳酸盐溶液对煅烧产物进行第一次洗脱(8),其中 溶解碱金属铝酸盐形式的铝(碱性Al(OH)4),将溶解的碱金属铝酸盐固液分离成富含碱金属Al(OH)4和碱金属固体(11a)的溶液(10) 富含硅酸钙,和公关 通过加入晶种和/或通过加入CO 2或含CO 2的气体,从富含碱金属Al(OH)4的溶液中分离氢氧化铝Al(OH)3(13),其中碱金属氢氧化物和/或 碱金属碳酸盐(14)形成并保留在溶液中。