Water-resistant shaped structure of gypsum and process for production
thereof
    1.
    发明授权
    Water-resistant shaped structure of gypsum and process for production thereof 失效
    石膏防水型结构及其生产方法

    公开(公告)号:US4126599A

    公开(公告)日:1978-11-21

    申请号:US770432

    申请日:1977-02-22

    IPC分类号: C04B28/14 C04B41/45 C08K3/00

    摘要: A water-resistant shaped structure of gypsum comprising (A) calcium sulfate dihydrate formed by hardening of calcium sulfate capable of hydration reaction, (B) a calcium type filler for filling up spaces among crystalline particles of said calcium sulfate dihydrate and (C) a water-insoluble or hardly water-soluble salt of a polybasic acid having a second stage dissociation constant of 10.sup.-3 to 10.sup.-10, especially 10.sup.-4 to 10.sup.-9, as measured at 25.degree. C., said calcium type filler (B) being at least one calcium compound selected from the group consisting of calcium hydroxide, calcium carbonate, calcium silicate, calcium aluminosilicate, and non-water-hardenable anhydrous gypsum and partially hydrated products thereof, wherein the amount of the calcium type filler (B) and the water-insoluble or hardly water-soluble calcium salt (C) is 15 to 75% based on the total amount of the components (A), (B) and (C) as calculated as calcium, the amount of the water-insoluble or hardly water-soluble calcium salt (C) is 0.1 to 30% based on the total amount of the components (A), (B) and (C) as calculated as calcium, the water-insoluble or hardly water-soluble calcium salt (C) is distributed predominantly in the surface portion of the shaped structure, and said surface portion has a pore volume smaller than 0.50 ml/g in pores having a radius in the range of 75 to 75000 A and a pore volume smaller than 0.20 ml/g in pores having a radius in the range of 4000 to 10000 A.

    摘要翻译: 一种石膏的防水结构,包括(A)通过硬化能够水合反应的硫酸钙形成的硫酸钙二水合物,(B)用于在所述硫酸钙二水合物的结晶颗粒之间填充空间的钙型填料和(C) 在25℃下测定的第二阶段解离常数为10-3-10-10,特别是10-4-10-9的多元酸的水不溶性或难溶于水的盐,所述钙型填料( B)是选自氢氧化钙,碳酸钙,硅酸钙,硅铝酸钙和非水可硬化无水石膏中的至少一种钙化合物及其部分水合产物,其中钙型填料(B ),水不溶性或难溶于水的钙盐(C)的含量相对于钙计算的成分(A),(B)和(C)的总量为15〜75% 不溶或几乎不溶于水的calciu m盐(C)的含量相对于钙计算的成分(A),(B)和(C)的总量为0.1〜30%,水不溶性或难溶于水的钙盐(C)分布 主要在成形结构的表面部分中,并且所述表面部分的孔体积小于0.50ml / g,孔径为75至75000A,孔体积小于0.20ml / g。 范围在4000到10000之间的半径。

    Treating raw materials containing titanium components
    2.
    发明授权
    Treating raw materials containing titanium components 失效
    处理含钛成分的原料

    公开(公告)号:US4069295A

    公开(公告)日:1978-01-17

    申请号:US682058

    申请日:1976-04-30

    CPC分类号: C22B1/00

    摘要: A method of treating raw materials containing components of metals of the group IVb of the Periodic Table, which comprises heat-treating a raw material of a component of a metal of the group IVb of the Periodic Table containing coloring poisonous metal components such as Mn, V and Cr components in the presence of a flux composed mainly of an alkali metal nitrate or an alkali metal peroxide which is a thermal decomposition product of the alkali metal nitrate in an amount 2 to 5 times the amount of the raw material on the weight basis in a non-reducing atmosphere to thereby effect fluxing reaction, and subjecting the resulting fluxing reaction product to a leaching treatment of at least one stage in an aqueous medium to separate the fluxing reaction product into said coloring metal components and a concentrate of the component of the group IVb of the Periodic Table which is acid-soluble and substantially free of said coloring poisonous metal components. In practising this treating method, if a residue left after the above leaching step is incorporated into a mixture of the raw material and the flux, the composition is granulated and the granulated composition is heat-treated, the fluxing reaction of the raw material can be accomplished while keeping the granulated composition in the substantially non-sticky granular state throughout the fluxing heat treatment.

    摘要翻译: 一种处理包含元素周期表IVb族金属组分的原料的方法,该方法包括对含有着色有毒金属组分如Mn的周期表IVb族金属组分的原料进行热处理, V和Cr组分在主要由碱金属硝酸盐或碱金属过氧化物组成的助熔剂存在下,碱金属硝酸盐或碱金属过氧化物是碱金属硝酸盐的热分解产物,其量为原料重量的2至5倍 在非还原性气氛中进行助熔反应,并将得到的助熔反应产物在水性介质中进行至少一个阶段的浸出处理,将助熔反应产物分离成所述着色金属组分,并将组分的浓缩物 周期表的IVb组是酸溶性的并且基本上不含所述着色有毒金属组分。 在实施该处理方法时,如果将上述浸出工序后残留的残留物并入原料与助熔剂的混合物中,则将其组成进行造粒,对该粒状组合物进行热处理,可以使原料的助熔反应 在整个助熔热处理过程中将颗粒状组合物保持在基本上不粘的颗粒状态。

    Granular stabilizer for chlorine-containing polymers
    4.
    发明授权
    Granular stabilizer for chlorine-containing polymers 失效
    含氯聚合物颗粒稳定剂

    公开(公告)号:US4329182A

    公开(公告)日:1982-05-11

    申请号:US196549

    申请日:1980-10-14

    IPC分类号: C08K5/098 C08K7/22 C08L91/00

    CPC分类号: C08K5/098 C08K7/22

    摘要: Disclosed is a granular stabilizer for chlorine-containing polymers, which comprises porous spherical particles composed of randomly integrated needle crystals of a polybasic sulfuric acid/fatty acid lead salt having a chemical composition of 1 mole of SO.sub.3, 3.7 to 4.5 moles of PbO and 0.06 to 1.27 moles of a higher fatty acid and also having X-ray diffraction peaks at spacings d of 2.95 A and 3.27 A, wherein the fatty acid component is enrolled in the surfaces of the respective needle crystals without substantial phase separation in the surfaces of the spherical particles.

    摘要翻译: 公开了一种含氯聚合物的颗粒稳定剂,其包含由具有1摩尔SO 3,3.7至4.5摩尔PbO和0.06摩尔的化学组成的多元硫酸/脂肪酸铅盐的随机整合的针状晶体组成的多孔球形颗粒 至1.27摩尔高级脂肪酸,并且在间隔d为2.95A和3.27A的X射线衍射峰中,其中脂肪酸组分参与各针晶体的表面,而不会在 球形颗粒。

    Process for treating bauxite or similar raw material
    6.
    发明授权
    Process for treating bauxite or similar raw material 失效
    处理铝土矿或类似原料的工艺

    公开(公告)号:US4265864A

    公开(公告)日:1981-05-05

    申请号:US11544

    申请日:1979-02-12

    IPC分类号: C01F7/04 C01F7/08

    CPC分类号: C01F7/04

    摘要: When an alkali such as an alkali metal bicarbonate or carbonate is intimately mixed with bauxite or other alumina-containing raw material at an Al.sub.2 O.sub.3 /Na.sub.2 O molar ratio of from 1/1 to 1/3 and the mixture is molded into granules, then calcined and extracted with an aqueous medium, the alumina component can be recovered in a high yield in the form of an aqueous solution of an alkali metal aluminate. The alkali component is not substantially contained in the residue left after recovery of this aqueous solution.

    摘要翻译: 当碱如碱金属碳酸氢盐或碳酸盐与Al2O3 / Na2O摩尔比为1/1至1/3的铝土矿或其它含氧化铝原料充分混合,并将混合物模制成颗粒时,然后煅烧和 用水介质萃取,氧化铝组分可以高碱度金属铝酸盐水溶液的形式回收。 在该水溶液回收后留下的残留物中碱性成分基本上不含有。

    Process for an electrode for a lead battery
    7.
    发明授权
    Process for an electrode for a lead battery 失效
    铅电池用电极的工艺

    公开(公告)号:US4188268A

    公开(公告)日:1980-02-12

    申请号:US919047

    申请日:1978-06-26

    IPC分类号: H01M4/22 H01M4/56 H01M10/44

    CPC分类号: H01M4/22 H01M4/56

    摘要: A lead battery comprising as an active material a formation product of a novel lead monoxide or a heat treatment product thereof is disclosed. This novel lead monoxide has a true density of 8.3 to 9.2 g/cc, an average particle size not larger than 0.2.mu., an infrared absorption peak at a wave number of 1400 to 1410 cm.sup.-1 and a chromic anhydride reactivity of at least 94%.This lead battery is excellent over lead batterys comprising active materials formed from known starting substances with respect to the active material utilization ratio and it has a very long life and stable capacities. In this lead battery, the active material utilization ratio can be maintained at a very high level over a long period.

    摘要翻译: 公开了一种铅电池,其包含作为活性物质的新型一氧化铅或其热处理产物的形成产物。 该新型一氧化铅的真密度为8.3〜9.2g / cc,平均粒径不大于0.2μm,波数为1400〜1410cm -1的红外吸收峰,铬酸酐反应性为94以上 %。 该铅电池相对于活性物质利用率包含由已知起始物质形成的活性物质的铅电池,具有极好的寿命和稳定的容量。 在该铅蓄电池中,活性物质利用率能够长时间保持在非常高的水平。

    Stabilizer composition for chlorine-containing polymers
    8.
    发明授权
    Stabilizer composition for chlorine-containing polymers 失效
    含氯聚合物的稳定剂组合物

    公开(公告)号:US4060508A

    公开(公告)日:1977-11-29

    申请号:US632009

    申请日:1975-11-14

    CPC分类号: C08K9/12 C08K3/34

    摘要: A stabilizer composition for chlorine-containing polymers having a much reduced tendency to blow at the molding step, which comprises (A) an inorganic stabilizer having a power volume of at least 0.5 cc/g, said stabilizer (A) consisting essentially of at least one member selected from the group consisting of silicates of metals of Groups II and IV of the Periodic Table and composites of silicate acid with oxides, hydroxides and carbonates of said metals, and (B) an organic additive having a boiling point or decomposition point higher than a chlorine-containing polymer-processing temperature, said organic additive (B) being incorporated into the stabilizer (A) at a weight ratio (A) : (B) of 1 : at least 0.1 so that the pore volume ratio defined by the following formula: ##EQU1## WHEREIN PVc denotes the pore volume (cc/g) of the entire composition and PVa denotes the pore volume (cc/g) of said inorganic stabilizer (A),is not higher than 0.8.

    摘要翻译: 一种用于含有聚合物的稳定剂组合物,其在模塑步骤中具有大大降低的吹塑倾向,其包括(A)功率体积为至少0.5cc / g的无机稳定剂,所述稳定剂(A)至少基本上由 选自周期表第II和IV族金属硅酸盐的组分和硅酸盐与所述金属的氧化物,氢氧化物和碳酸盐的复合物,和(B)具有沸点或分解点较高的有机添加剂 比含氯聚合物加工温度高,所述有机添加剂(B)以重量比(A):(B)为1::至少为0.1的量加入到稳定剂(A)中,使得由 下式:其中PVc表示整个组合物的孔体积(cc / g),PVa表示无机稳定剂(A)的孔体积(cc / g),不高于0.8。

    Process for preparation of granules of low-melting-point metals
    10.
    发明授权
    Process for preparation of granules of low-melting-point metals 失效
    低熔点金属颗粒的制备方法

    公开(公告)号:US4450885A

    公开(公告)日:1984-05-29

    申请号:US958486

    申请日:1978-11-07

    IPC分类号: B01J2/06 B22F9/08 B22D23/08

    CPC分类号: B01J2/06 B22F9/08 B22F2999/00

    摘要: A process for the preparation of granules of low-melting-point metals which comprises spouting a melt of a low-melting-point metal in the form of fine streams in a gas phase under melt fracture-causing conditions and introducing the fine streams of the molten metal into a collecting liquid phase so that the speed of the molten metal fine streams just above the liquid face is 50 to 300 cm/sec is disclosed. According to this process, granules having a substantially spherical shape and being uniform in the size can be prepared very easily at high efficiency.

    摘要翻译: 一种制备低熔点金属颗粒的方法,包括在熔融破裂引起的条件下,在气相中喷射细小流形式的低熔点金属的熔体,并引入 熔融金属成为收集液相,使得正好在液面上方的熔融金属细流的速度为50〜300cm / sec。 根据该方法,可以非常容易地以高效率制备具有基本上球形并且尺寸均匀的颗粒。