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18 条记录 (耗时 0.03 秒)

    Pelletisation process
    2.
    发明授权
    Pelletisation process 失效
    造粒过程

    公开(公告)号：US5302186A

    公开(公告)日：1994-04-12

    申请号：US941039

    申请日：1992-10-08

    申请人： John R. Field ,  Anthony P. Allen

    发明人： John R. Field ,  Anthony P. Allen

    IPC分类号： C22B1/24 ,  C22B1/242

    CPC分类号： C22B1/2406 ,  C22B1/242

    摘要： Pellets of iron ore or other water insoluble particulate material are made from a mixture of the particulate material, moisture and a pelletizing binder by forming moist green pellets, a water displacing additive is applied to the surface of these pellets after they are substantially wholly formed, and the pellets are then dried. The preferred water displacing additive is a solution of a silicone in an organic solvent.

    摘要翻译： PCT No.PCT / GB91 / 00645 Sec。 371日期：1992年10月8日 102（e）日期1992年10月8日PCT 1991年4月23日提交PCT公布。 WO91 / 16463 PCT出版物 日期：1991年10月31日。铁矿石或其他水不溶性颗粒材料的小球由颗粒材料，水分和造粒粘合剂的混合物制成，形成湿润的生球团矿，将置换水的添加剂施加到这些颗粒的表面 在它们基本上完全形成之后，然后将颗粒干燥。 优选的排水添加剂是硅酮在有机溶剂中的溶液。

    Flocculation processes
    6.
    发明授权
    Flocculation processes 失效
    絮凝过程

    公开(公告)号：US4720346A

    公开(公告)日：1988-01-19

    申请号：US855509

    申请日：1986-04-23

    申请人： Peter Flesher ,  David Farrar ,  John R. Field

    发明人： Peter Flesher ,  David Farrar ,  John R. Field

    IPC分类号： B01D21/01 ,  C02F1/52 ,  C02F1/54 ,  C02F1/56 ,  D21H17/37 ,  D21H17/43 ,  D21H17/45 ,  D21H21/10

    CPC分类号： C02F1/54 ,  C02F1/52 ,  C02F1/5227 ,  D21H21/10 ,  D21H17/37 ,  D21H17/43 ,  D21H17/455 ,  Y10S524/922

    摘要： When flocculating an aqueous suspension of suspended solids using a high molecular weight synthetic polymeric flocculant, the shear stability of the flocs is increased if the polymeric material includes polymeric particles of below 10 .mu.m dry size. The flocculated solids can therefore be subjected to shear without increasing the amount of discrete suspended solids in the aqueous medium and generally they are subjected to shear by shearing the aqueous medium containing them, either before dewatering, generally on a centrifuge, piston press or belt press, or by continuously agitating them, for instance in a chemical reaction medium. The polymeric material is generally formed by mixing into water polymeric particles made by reverse phase or emulsion polymerization in the presence of added cross linking agent. Alternatively, particles insolubilized by insoluble monomer may be used. A reverse phase dispersion of water soluble polymer may be used if the particles remain undissolved, e.g. if they are added in the absence of an oil in water emulsifying agent.

    摘要翻译： 当使用高分子量合成聚合物絮凝剂絮凝悬浮固体的水性悬浮液时，如果聚合物材料包括低于10μm干燥尺寸的聚合物颗粒，则絮凝物的剪切稳定性增加。 因此，絮凝的固体可以经受剪切而不增加水性介质中离散的悬浮固体的量，并且通常在脱水之前通常剪切含有它们的水性介质，通常在离心机，活塞压力机或带式压力机 ，或者通过连续搅拌它们，例如在化学反应介质中。 聚合物材料通常通过在添加的交联剂的存在下混合成通过反相或乳液聚合制备的水聚合物颗粒来形成。 或者，可以使用不溶性单体不溶的颗粒。 如果颗粒保持不溶，则可以使用水溶性聚合物的反相分散体，例如， 如果在没有水包油乳化剂的情况下加入。

    Electrical firing systems
    7.
    发明授权
    Electrical firing systems 失效
    电火系统

    公开(公告)号：US4709615A

    公开(公告)日：1987-12-01

    申请号：US731899

    申请日：1985-05-08

    申请人： John R. Field

    发明人： John R. Field

    IPC分类号： F41A19/58 ,  F42B5/03 ,  F23Q5/00 ,  H01H47/00

    CPC分类号： F42B5/035 ,  F41A19/58 ,  Y10T307/872

    摘要： An electrical firing arrangement for the sequential firing of a plurality of mortars stacked in end-to-end relationship within a single launching barrel. The firing arrangement comprises a pulse generator for producing mortar firing pulses and a circuit for applying these pulses to an electro-magnetic stepping switch which applies the pulses in turn over pairs of wires to igniters of the respective mortars as the stepping switch is stepped from one position to the next. The stepping switch comprises normally-open contacts which close when an operating coil is effectively energized by a firing pulse and switch wipers move out of engagement with one pair of associated contacts on the stepping switch towards the next pair of associated contacts on the same switch. The normally-open contacts are restored to their open condition when the operating coil is fully de-energized at the end of each firing pulse so that any short-circuit condition which may exist across a pair of associated contacts due to short-circuiting of a pair of wires to an igniter of a mortar being fired will not deprive the operating coil of current upon the arrival of a firing pulse whereby the stepping switch would fail to step to its next position.

    摘要翻译： 一种用于在单个发射筒内以端对端关系堆叠的多个迫击炮的顺序点火的电火焰装置。 点火装置包括用于产生迫击炮脉冲的脉冲发生器和用于将这些脉冲施加到电磁步进开关的电路，该电磁步进开关随着步进开关从一个步进开关而将成对的电线依次施加到各个迫击炮的点火器 位置到下一个 步进开关包括常开触点，当操作线圈被点火脉冲有效地激励时，开关触点闭合，并且开关擦拭器与步进开关上的一对相关联的触点离开与相同开关上的下一对相关联的触点的接合。 当操作线圈在每个点火脉冲结束时完全断电时，常开触点恢复到其开启状态，使得由于短路的一个关联触点可能存在的任何短路状况 一对电线到被发射的砂浆的点火器将不会在点火脉冲到达时剥夺工作线圈的电流，从而步进开关不能进入其下一个位置。

    Testing polyelectrolytes
    9.
    发明授权
    Testing polyelectrolytes 失效
    测试聚电解质

    公开(公告)号：US4820645A

    公开(公告)日：1989-04-11

    申请号：US855518

    申请日：1986-04-23

    申请人： John R. Field ,  David Farrar ,  Peter Flesher

    发明人： John R. Field ,  David Farrar ,  Peter Flesher

    IPC分类号： C02F1/52 ,  C02F1/54 ,  D21H17/37 ,  D21H17/43 ,  D21H17/45 ,  D21H21/10 ,  G01N27/416 ,  G01N27/48

    CPC分类号： D21H21/10 ,  C02F1/52 ,  C02F1/5227 ,  C02F1/54 ,  D21H17/37 ,  D21H17/43 ,  D21H17/455 ,  Y10T436/12

    摘要： Measurement of the ionic value X of a solution of a polyelectrolyte after shearing, for instance by a rotating blade, and/or measurement of the ionic value Y of a solution of polyelectrolyte before shearing, and especially the difference between t he values X and Y, gives a useful indication of the degree of cross linking of the polyelectrolyte and so can be utilized to control the manufacture of the polyelectrolyte, for instance drying conditions, or the storage or use of the polyelectrolyte, for instance its suitability or dosage in a flocculation process.

    摘要翻译： 剪切后的聚电解质溶液的离子值X的测定，例如旋转叶片的测定和/或剪切前聚电解质溶液的离子值Y的测定，特别是X值和Y值之间的差 ，给出了聚电解质的交联程度的有用指示，因此可以用于控制聚电解质的制造，例如干燥条件或聚电解质的储存或使用，例如其在絮凝中的适用性或剂量 处理。

    Polymeric dispersions
    10.
    发明授权
    Polymeric dispersions 失效
    聚合物分散体

    公开(公告)号：US4585812A

    公开(公告)日：1986-04-29

    申请号：US699988

    申请日：1985-02-11

    申请人： John R. Field

    发明人： John R. Field

    IPC分类号： C08J3/09 ,  C08J3/02

    CPC分类号： C08J3/09 ,  C08J2300/14

    摘要： A high solids, pumpable stable dispersion of substantially anhydrous water soluble or swellable polymer particles contains at least 70% by weight polymer and contains 1 part by weight fine polymer particles below 10 microns in size and 0.1 to 7 parts by weight coarse polymer particles having a size of 10 to 300 microns with substantially no particles above 300 microns.

    摘要翻译： 基本上无水的水溶性或可溶胀聚合物颗粒的高固体，可泵送稳定的分散体含有至少70重量％的聚合物，并且含有1重量份的尺寸小于10微米的精细聚合物颗粒和0.1至7重量份的具有 尺寸为10至300微米，基本上没有高于300微米的颗粒。