Foam extinguishing agent
    1.
    发明授权
    Foam extinguishing agent 失效
    泡沫灭火剂

    公开(公告)号:US4203850A

    公开(公告)日:1980-05-20

    申请号:US925368

    申请日:1978-07-17

    IPC分类号: A62D1/00 A62D1/02

    CPC分类号: A62D1/0085

    摘要: Aqueous solutions containing an aliphatic amine-N-oxide and a member of a special group of fluorinated surfactants (I) can be used with success as foaming agents for extinguishing liquid hydrocabon fires. (I) has the formula ##STR1## in which R.sub.F is a perfluoroalkyl group having from 3 to 16 carbon atoms,R.sub.4 is a hydrogen atom, a C.sub.1-4 alkyl, cyclohexyl or 2-hydroxyalkyl having from 2 to 6 carbon atoms,R.sub.5 is a C.sub.1-4 alkyl radical, a cyclohexyl radical or 2-hydroxyalkyl having from 2 to 6 carbon atoms andR.sub.6 is a water-solubilizing radical.

    摘要翻译: 含有脂族胺-N-氧化物和特殊氟代表面活性剂(I)的成员的水溶液可以成功地用作用于熄灭液体氢化钙火的发泡剂。 (I)具有其中RF是具有3至16个碳原子的全氟烷基,R4是氢原子,C1-4烷基,具有2至6个碳原子的环己基或2-羟基烷基的式“IMAGE”,R5 是C 1-4烷基,具有2至6个碳原子的环己基或2-羟基烷基,R 6是水溶性基团。

    Torque wrench
    3.
    发明授权
    Torque wrench 失效
    扭力扳手

    公开(公告)号:US5303601A

    公开(公告)日:1994-04-19

    申请号:US806903

    申请日:1991-12-12

    CPC分类号: B25B23/1425

    摘要: The present invention relates to a torque wrench (1, 2) having an electronic measuring device which detects a prevailing torque by means of strain gauges, having a memory for the storing of measured values and an indicating device which indicates the minimum and maximum values reached by means of light-emitting diodes (5, 6, 7) of different color. In order to be able to use the torque wrench advantageously, in particular in routine work where the precise maintaining of a torque is of importance, the invention proposes that a measured value be stored by actuating an actuating button (8) which also serves to activate the torque wrench (1, 2).

    摘要翻译: 本发明涉及一种具有电子测量装置的扭矩扳手(1,2),该电子测量装置通过应变计检测主要扭矩,具有用于存储测量值的存储器和指示达到的最小值和最大值的指示装置 通过不同颜色的发光二极管(5,6,7)。 为了能够有利地使用扭矩扳手,特别是在转矩的精确维持是重要的日常工作中,本发明提出通过致动执行按钮(8)来存储测量值,该致动按钮(8)也用于激活 扭矩扳手(1,2)。

    Single-component alkali metal silicate cement composition
    4.
    发明授权
    Single-component alkali metal silicate cement composition 失效
    单组分碱金属硅酸盐水泥组合物

    公开(公告)号:US5296027A

    公开(公告)日:1994-03-22

    申请号:US8733

    申请日:1993-01-25

    摘要: The invention relates to a dry, surfactant-free single-component alkali metal silicate cement composition containing as hardening agent condensed aluminum phosphate and at least one compound from the group comprising the ortho- and pyrophosphates of manganese, zinc, cobalt, iron(III) and chromium(III) and in addition containing the conventional components rounded quartz sand, clay, kieselguhr, mineral oil and solid powdered sodium water glass or potassium water glass.

    摘要翻译: 本发明涉及一种干燥的无表面活性剂的单组分碱金属硅酸盐水泥组合物,其包含作为硬化剂的浓缩磷酸铝和至少一种包含锰,锌,钴,铁(III)的邻 - 和焦磷酸盐的化合物, 和铬(III),另外含有常规成分为圆形石英砂,粘土,硅藻土,矿物油和固体粉末钠水玻璃或钾水玻璃。

    Carrier catalyst, process for its preparation, and its use for the
preparation of vinyl acetate
    6.
    发明授权
    Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate 失效
    载体催化剂,其制备方法及其用于制备乙酸乙烯酯的用途

    公开(公告)号:US5250487A

    公开(公告)日:1993-10-05

    申请号:US900839

    申请日:1992-06-18

    摘要: The invention relates to a process for the preparation of a catalyst which contains palladium and/or compounds thereof and alkali metal compounds, and additionally cadmium compounds and/or gold and/or compounds thereof, on support particles which have been pressed from SiO.sub.2 or an iO.sub.2 -Al.sub.2 O.sub.3 mixture with the aid of a binder which comprisesa) washing the roasted support particles with an acid which does not react with SiO.sub.2 or SiO.sub.2 -Al.sub.2 O.sub.3 mixtures, until no further cations of the binder employed during pressing of the support particles are released from the support particles;b) then impregnating the support particles with palladium, and gold or cadmium;c) then bringing the impregnated support particles into contact with a solution of a base at least until the thickness of the nobel metal shell generated in this way on the support particles no longer changes substantially; andd) then impregnating the support particles with an alkali metal compound.A shell-like distribution of the palladium and if appropriate of the gold in the support particles is generated in this manner.Furthermore, the invention relates to a catalyst prepared in this way and to its use for the preparation of vinyl acetate.

    摘要翻译: 本发明涉及一种制备催化剂的方法,该催化剂包含钯和/或其化合物和碱金属化合物,以及另外的镉化合物和/或金和/或其化合物,其在从SiO 2或 iO 2 -Al 2 O 3混合物,其包括a)用不与SiO 2或SiO 2 -Al 2 O 3混合物反应的酸洗涤焙烧的载体颗粒,直到在压制载体颗粒期间不再使用粘合剂的阳离子释放 从支撑颗粒; b)然后用钯和金或镉浸渍载体颗粒; c)然后使浸渍的载体颗粒与碱的溶液接触,至少直到以这种方式在载体颗粒上产生的诺贝尔金属壳的厚度不再显着变化; 和d)然后用碱金属化合物浸渍载体颗粒。 以这种方式产生钯的壳状分布和如果合适的支撑颗粒中的金。 此外,本发明涉及以这种方式制备的催化剂及其用于制备乙酸乙烯酯的用途。

    Process for deodorizing foaming agents for the manufacture of air foams
    7.
    发明授权
    Process for deodorizing foaming agents for the manufacture of air foams 失效
    用于制造空气泡沫的除臭发泡剂的方法

    公开(公告)号:US4165313A

    公开(公告)日:1979-08-21

    申请号:US792909

    申请日:1977-05-02

    CPC分类号: A62D1/0078

    摘要: A process is disclosed for deodorizing protein hydrolysates which are used for making air foam. Protein is hydrolyzed by known methods in the absence of heavy metal salts. Then an epoxide is added until blackening occurs when a spot-test is carried out with lead acetate paper.

    摘要翻译: 公开了用于制造空气泡沫的蛋白质水解产物的除臭方法。 在不存在重金属盐的情况下,蛋白质通过已知方法水解。 然后加入环氧化物,直到当用乙酸铅纸进行点测试时发生黑化。

    Supported catalyst, process for its preparation and its use for the
preparation of vinyl acetate
    8.
    发明授权
    Supported catalyst, process for its preparation and its use for the preparation of vinyl acetate 失效
    负载催化剂,其制备方法及其用于制备乙酸乙烯酯的用途

    公开(公告)号:US5476963A

    公开(公告)日:1995-12-19

    申请号:US394840

    申请日:1995-02-27

    摘要: Supported catalyst, process for its preparation and its use for the preparation of vinyl acetateThe invention relates to improved Pd/K/Au, Pd/K/Ba and Pd/K/Cd supported catalysts, their preparation and their use for the preparation of vinyl acetate from ethylene, acetic acid and oxygen in the gas phase. The stated catalysts are prepared by atomizing a solution of corresponding metal salts by means of ultrasonics and then applying them in such limited amounts and within such a limited time to the carrier particles, and beginning to dry them, so that the catalytically active metal salts cannot penetrate into the carrier particles as far as the core but only into a larger or smaller outer part.

    摘要翻译: 负载催化剂及其制备方法及其在制备乙酸乙烯酯中的应用本发明涉及改进的Pd / K / Au,Pd / K / Ba和Pd / K / Cd载体催化剂,其制备及其在制备 来自乙烯的乙酸乙烯酯,乙酸和氧气在气相中。 所述催化剂是通过用超声波雾化相应金属盐溶液制备的,然后以有限的量和在有限的时间内将它们施加到载体颗粒上,并开始将它们干燥,使得催化活性金属盐不能 渗透到载体颗粒直到芯部,但仅进入更大或更小的外部部分。

    Carrier catalyst, process for its preparation, and its use for the
preparation of vinyl acetate
    9.
    发明授权
    Carrier catalyst, process for its preparation, and its use for the preparation of vinyl acetate 失效
    载体催化剂,其制备方法及其用于制备乙酸乙烯酯的用途

    公开(公告)号:US5292931A

    公开(公告)日:1994-03-08

    申请号:US44212

    申请日:1993-04-07

    摘要: The invention relates to a process for the preparation of a catalyst which contains palladium and/or compounds thereof and alkali metal compounds, and additionally cadmium compounds and/or gold and/or compounds thereof, on support particles which have been pressed from SiO.sub.2 or an iO.sub.2 -Al.sub.2 O.sub.3 mixture with the aid of a binder which comprisesa) washing the roasted support particles with an acid which does not react with SiO.sub.2 or SiO.sub.2 -Al.sub.2 O.sub.3 mixtures, until no further cations of the binder employed during pressing of the support particles are released from the support particles;b) then impregnating the support particles with palladium, and gold or cadmium;c) then bringing the impregnated support particles into contact with a solution of a base at least until the thickness of the nobel metal shell generated in this way on the support particles no longer changes substantially; andd) then impregnating the support particles with an alkali metal compound.A shell-like distribution of the palladium and if appropriate of the gold in the support particles is generated in this manner.Furthermore, the invention relates to a catalyst prepared in this way and to its use for the preparation of vinyl acetate.

    摘要翻译: 本发明涉及一种制备催化剂的方法,该催化剂包含钯和/或其化合物和碱金属化合物,以及另外的镉化合物和/或金和/或其化合物,其在从SiO 2或 iO 2 -Al 2 O 3混合物,其包括a)用不与SiO 2或SiO 2 -Al 2 O 3混合物反应的酸洗涤焙烧的载体颗粒,直到在压制载体颗粒期间不再使用粘合剂的阳离子释放 从支撑颗粒; b)然后用钯和金或镉浸渍载体颗粒; c)然后使浸渍的载体颗粒与碱的溶液接触,至少直到以这种方式在载体颗粒上产生的诺贝尔金属壳的厚度不再显着变化; 和d)然后用碱金属化合物浸渍载体颗粒。 以这种方式产生钯的壳状分布和如果合适的支撑颗粒中的金。 此外,本发明涉及以这种方式制备的催化剂及其用于制备乙酸乙烯酯的用途。

    Production of aluminum polyphosphate
    10.
    发明授权
    Production of aluminum polyphosphate 失效
    生产聚磷酸铝

    公开(公告)号:US4147758A

    公开(公告)日:1979-04-03

    申请号:US794959

    申请日:1977-05-09

    CPC分类号: C04B12/022 C01B25/40

    摘要: Aluminum polyphosphate is made. To this end, solid aluminum hydroxide and polyphosphoric acid which are used in proportions corresponding to an Al:P molar ratio of 1:2.5 to 1:3.5, are introduced separately from, but concurrently with, one another into a reaction zone kept at 150.degree. to 200.degree. C. A moist friable consistency of the starting materials is maintained in the reaction zone by continuously mixing, kneading and comminuting them over substantially the entire period during which they are introduced into the reaction zone. The reaction is continued until a dry sandy powder is formed; and the powder is annealed at 400.degree. to 600.degree. C. over a period sufficient to yield a product undergoing a 0.5 to 1% weight loss on ignition.

    摘要翻译: 制成聚磷酸铝。 为此,以与Al:P摩尔比为1:2.5〜1:3.5的比例使用的固体氢氧化铝和多磷酸分别从彼此分开引入到保持在150℃的反应区中 通过在它们被引入反应区域的基本上整个时间段内连续地混合,捏合和粉碎它们,在反应区域中维持起始材料的潮湿脆性稠度。 继续反应直至形成干燥的沙质粉末; 并将粉末在400℃至600℃下退火一段足以产生在点火时经历0.5至1重量%失重的产物。