Process for producing an artificial light-weight aggregate
    1.
    发明授权
    Process for producing an artificial light-weight aggregate 失效
    制造人造轻质骨料的方法

    公开(公告)号:US4701222A

    公开(公告)日:1987-10-20

    申请号:US818875

    申请日:1986-01-14

    摘要: A process for producing an artificial light-weight aggregate comprising SiO.sub.2, Al.sub.2 O.sub.3, Fe.sub.2 O.sub.3 and at least one oxide selected from the group consisting of MgO and CaO which has an absolute dry specific gravity of not higher than 1.5, a crushing strength of not less than 55 kfg/cm.sup.2 and a 24 hour water-absorption ratio of not greater than 2.4%. The process comprises granulating a raw powder material comprising SiO.sub.2, Al.sub.2 O.sub.3, Fe.sub.2 O.sub.3 and at least one oxide selected from the group consisting of MgO and CaO, in which the total amount of SiO.sub.2 and Al.sub.2 O.sub.3 is from 75 to 92 wt. %, the weight ratio of Al.sub.2 O.sub.3 /SiO.sub.2 is from 0.25 to 0.70, and the total amount of Fe.sub.2 O.sub.3 and MgO and/or CaO is from 6-20 wt. % and containing at least 80% by weight of a coal ash having a Blaine specific surface area of 2,000 to 9,000 cm.sup.2 /g to give granules having an average apparent specific gravity of 1.1 to 1.8 and a crushing strength of 0.5 kgf/cm.sup.2 or above at 20.degree. C. as well as after heating at 600.degree. C. The granules are calcined at a temperature of 1,100.degree. to 1,600.degree. C. by heating the granules to said temperature at a rate of 150.degree. C./hour to 1000.degree. C./hour when heating said granules from 600.degree. to said temperature.

    摘要翻译: 一种制造包含SiO 2,Al 2 O 3,Fe 2 O 3和至少一种选自绝对干重比不超过1.5的MgO和CaO的至少一种氧化物的人造轻骨料的方法,其抗碎强度不小于 55kfg / cm2,24小时吸水率不大于2.4%。 该方法包括将包含SiO 2,Al 2 O 3,Fe 2 O 3和至少一种选自MgO和CaO的氧化物的原料粉末造粒,其中SiO 2和Al 2 O 3的总量为75至92重量%。 %,Al2O3 / SiO2的重量比为0.25〜0.70,Fe2O3和MgO和/或CaO的总量为6〜20wt。 %,含有至少80重量%的Blaine比表面积为2,000〜9,000cm2 / g的煤灰,得到平均表观比重为1.1〜1.8,抗碎强度为0.5kgf / cm 2以上的颗粒 在20℃下加热,并在600℃下加热。将颗粒在1100℃至1600℃的温度下煅烧,通过以150℃/小时至1000℃的速度将颗粒加热至所述温度。 当将所述颗粒从600℃加热至所述温度时,

    Expansive cement additive and cementitious material added therewith
    2.
    发明授权
    Expansive cement additive and cementitious material added therewith 失效
    添加膨胀水泥添加剂和水泥材料

    公开(公告)号:US4452637A

    公开(公告)日:1984-06-05

    申请号:US457683

    申请日:1983-01-13

    CPC分类号: C04B7/326 C04B22/008

    摘要: An expansive cement additive and a cementitious material added therewith, said expansive additive consisting of a pulverized product of clinker containing 15.about.60% by weight of free CaO, 5.about.30% by weight of free CaF.sub.2, 30.about.80% by weight of 11CaO.7Al.sub.2 O.sub.3.CaF.sub.2, and less than 10% by weight of other ingredients or a mixed pulverized product of said clinker and gypsum, in which the weight ratio of CaSO.sub.4 /Al.sub.2 O.sub.3 ranges from 1.0 to 3.5.

    摘要翻译: 一种膨胀水泥添加剂和一种水泥质材料,所述膨胀添加剂由熟料的粉碎产物组成,该粉碎产物含有15重量%的游离CaO,5重量%的游离CaF 2,30重量%的碳酸钙,30重量%的11CaO 0.7 Al 2 O 3·C 2 F 2和小于10重量%的其它成分或所述熟料和石膏的混合粉碎产物,其中CaSO 4 / Al 2 O 3的重量比为1.0-3.5。

    Statical demolition-facilitating agent
    3.
    发明授权
    Statical demolition-facilitating agent 失效
    统计拆迁促进代理

    公开(公告)号:US4952243A

    公开(公告)日:1990-08-28

    申请号:US155030

    申请日:1988-05-24

    摘要: A durable structure can be easily and safely demolished by using a demolition-facilitating agent comprising, as an effective principal component 50% to 100% by weight of quick lime particles having an apparent density of 2.0 or more, a weight per unit volume of 1.0 kg/l or more, a particle size of 15 mm or less, and an average particle size of 0.1 mm or more, and optionally, additional solid particles, for example, sand particles, which are inert to water, rigid, porous inorganic grains, for example, hydrated zeolite grains, or a water-absorbing organic material, for example, acrylonitrile-grafted starch in a manner such that the demolition-facilitating agent in the dry state is fed into holes formed in a durable structure to be demolished and then water is fed into the holes to allow the quick lime particles to react with water and thus expand, to demolish the durable structure.

    摘要翻译: 耐久性结构可以通过使用拆除促进剂容易且安全地拆除,其包含作为有效主成分的50重量%至100重量%的表观密度为2.0以上的生石灰颗粒,每单位体积重量为1.0 kg / l以上,粒径为15mm以下,平均粒径为0.1mm以上,以及任选的附加固体颗粒,例如对水,刚性,多孔无机颗粒为惰性的砂粒 ,例如水合沸石颗粒或吸水有机材料,例如丙烯腈接枝淀粉,使得干燥状态的破坏促进剂进料到待破坏的耐久结构中形成的孔中, 然后将水送入孔中,以使生石灰颗粒与水反应并因此膨胀,以拆除耐用结构。

    Anodizing solution for anodic oxidation of magnesium or its alloys
    4.
    发明授权
    Anodizing solution for anodic oxidation of magnesium or its alloys 失效
    用于阳极氧化镁或其合金的阳极氧化溶液

    公开(公告)号:US4744872A

    公开(公告)日:1988-05-17

    申请号:US30941

    申请日:1987-03-26

    IPC分类号: C25D11/30

    CPC分类号: C25D11/30

    摘要: An novel solution for anodic oxidation of magnesium or magnesium alloy is prepared by dissolving silicate, carboxylate and alkali hydroxide in water. The anodic oxidation coating formed on the surface of magnesium or its alloy using the anodizing solution has a superior combination of properties, especially with respect to corrosion resistance, abrasion resistance and ornamental properties, as compared to any prior art anodic oxidation coating. The solution may further contains one or more compounds selected from the group consisting of borate, fluoride and phosphate, in addition to the foregoing essential components in order to obtain a further improvement.

    摘要翻译: 通过将硅酸盐,羧酸盐和碱金属氢氧化物溶于水中制备镁或镁合金阳极氧化的新方法。 与任何现有技术的阳极氧化涂层相比,使用阳极氧化溶液在镁或其合金的表面上形成的阳极氧化涂层具有优异的性能组合,特别是耐腐蚀性,耐磨性和装饰性能。 为了获得进一步的改进,除了上述基本组分之外,溶液还可以包含一种或多种选自硼酸盐,氟化物和磷酸盐的化合物。

    Process for treating waste water containing phosphorus compounds and/or
organic cod substances
    5.
    发明授权
    Process for treating waste water containing phosphorus compounds and/or organic cod substances 失效
    用于处理含有磷化合物和/或有机鳕鱼物质的废水的方法

    公开(公告)号:US4707270A

    公开(公告)日:1987-11-17

    申请号:US824906

    申请日:1986-01-31

    IPC分类号: B01J20/10 B01D15/00

    摘要: The specification discloses a novel calcium silicate water-treating agent exhibiting a superior ability to remove various kinds of phosphorus compounds or other environmental pollutants contained in wastewater, the calcium silicate water treating agent comprising a burned product which is prepared by burning a mixture containing as main constituents calcium compound, thermally decomposable to calcium oxide (CaO), and SiO.sub.2 -containing compound at a temperature of 1300.degree. to 1600.degree. C., the molar ratio of CaO/SiO.sub.2 of the resultant burned product being in the range of 1.5 to 5.0, preferably 2.0 to 4.0. In this water treating agent, SiO.sub.2 component may be partially replaced by Al.sub.2 O.sub.3 and/or Fe.sub.2 O.sub.3. A further water treating agent is prepared by heating the hydrate of the burned product prepared above at a temperature of 50.degree. to 700.degree. C. By using the thus obtained water treating agents, water treatment can be carried out with a high efficiency, thereby the treatment time, labor and cost can be considerably saved.

    摘要翻译: 本说明书公开了一种新型的硅酸钙水处理剂,其具有优异的去除废水中所含的各种磷化合物或其他环境污染物的能力,该硅酸钙水处理剂包含通过燃烧含有主要成分的混合物制备的燃烧产物 在1300〜1600℃的温度下,可以分解成氧化钙(CaO)和含SiO 2的化合物的钙化合物,所得烧成品的CaO / SiO 2的摩尔比在1.5〜5.0的范围内 ,优选为2.0〜4.0。 在这种水处理剂中,SiO 2成分可以部分地被Al 2 O 3和/或Fe 2 O 3替代。 通过加热上述制备的水合物在50〜700℃的温度下制备另外的水处理剂。通过使用如此得到的水处理剂,可以高效率地进行水处理,由此, 治疗时间,劳动力和成本可以大大节省。

    Process for producing a calcia clinker
    7.
    发明授权
    Process for producing a calcia clinker 失效
    生产钙质熟料的方法

    公开(公告)号:US4366257A

    公开(公告)日:1982-12-28

    申请号:US269882

    申请日:1981-06-03

    IPC分类号: C04B35/057 C04B35/02

    CPC分类号: C04B35/057

    摘要: A calcia clinker having an excellent resistance to slaking and an enhanced modulus of rupture at elevated temperatures is produced by a process comprising the steps of: (1) calcining a lime material at a temperature of 800.degree. to 1300.degree. C. to prepare a calcia; (2) providing an admixture, in the form of fine particles having a specific surface area of 5000 cm.sup.2 /g or more, of the calcia with an additive comprising (A) 0.5 to 3%, in terms of oxide and based on the weight of CaO in the calcia, of at least one inorganic compound of an element selected from the group consisting of titanium, aluminum and silicon and (B) 0.5 to 2.0%, based on the weight of CaO in the calcia, of calcium fluoride; and sintering the above-mentioned compound (A), and; (3) sintering the admixture at a temperature of 1200.degree. to 1650.degree. C.

    摘要翻译: 通过包括以下步骤的方法产生具有优异的耐消化性和提高的高温破裂模量的钙质熟料:(1)在800-1300℃的温度下煅烧石灰材料,以制备钙 ; (2)以氧化物计,基于重量计,以(A)0.5〜3%的添加剂形式提供具有5000cm 2 / g以上的比表面积为5000cm2 / g以上的细小颗粒的混合物, 的至少一种选自钛,铝和硅的元素的无机化合物和(B)基于氧化钙中的CaO的重量计为0.5-2.0%的CaO; 并烧结上述化合物(A),和 (3)在1200〜1650℃的温度下烧结混合物。

    Process for producing low water-absorption artificial lightweight
aggregate
    8.
    发明授权
    Process for producing low water-absorption artificial lightweight aggregate 失效
    生产低吸水人造轻质骨料的方法

    公开(公告)号:US4772330A

    公开(公告)日:1988-09-20

    申请号:US14929

    申请日:1987-02-13

    摘要: A process for producing a low water-absorbing artificial lightweight aggregate, which comprises:granulating a starting powdery material containing coal ash, having such a particle size distribution that a residue on a 297 .mu.m standard wire sieve is not more than 1 wt. %, and 1 to 20 parts by weight of a hydraulic material per 100 parts by weight of said coal ash in the presence of water;curing the resulting granules for a period of not shorter than 20 hours; orheat-treating the resulting granules at a temperature of not higher than 700.degree. C. for a period of not shorter than 30 minutes; and,calcining the granules at a temperature of 1,000.degree. to 1,500.degree. C.

    摘要翻译: 一种生产低吸水人造轻质骨料的方法,其包括:将含有煤灰的起始粉末材料制粒,其具有在297μm标准丝网上的残留物不超过1wt。 %和1至20重量份的水硬性材料/ 100重量份的所述煤灰在水的存在下; 将所得颗粒固化不少于20小时; 或者在不高于700℃的温度下对所得颗粒进行不短于30分钟的热处理; 并在1000℃至1500℃的温度下煅烧该颗粒。

    Hydraulic material composition
    10.
    发明授权
    Hydraulic material composition 失效
    液压材料组成

    公开(公告)号:US4705569A

    公开(公告)日:1987-11-10

    申请号:US858176

    申请日:1986-05-01

    申请人: Waichi Kobayashi

    发明人: Waichi Kobayashi

    CPC分类号: C04B22/142 C04B22/06

    摘要: A hydraulic material composition comprising cement and 0.01 to 2.0% by weight, as zinc oxide based on the cement, of a zinc-containing compound, such as zinc oxide having an average particle diameter of at least 20 micrometers. It does not corrode a steel material even when molded with the use of sand or sea water containing steel-corroding components such as chlorides.

    摘要翻译: 包含水泥材料组合物,其中含有0.01-2.0重量%的氧化锌,基于水泥的含锌化合物,例如平均粒径为至少20微米的氧化锌。 即使使用含有腐蚀性组分如氯化物的砂或海水进行成型,也不会腐蚀钢材。