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1. 发明授权

US3912838A Pneumatic application of lightweight cementitious compositions 失效
标题翻译：轻质化学组合物的气动应用
公开(公告)号：US3912838A
公开(公告)日：1975-10-14
申请号：US38261273
申请日：1973-07-25
申请人： GRACE W R & CO
发明人： KRAUS JOHN WALTER , VELTMAN PRESTON LEONARD , LEGAL CASIMER CLAUDIUS
IPC分类号： C04B28/04 , E04D7/00 , E04F13/02 , E04F15/12 , B05D1/34 , B05D1/36
CPC分类号： C04B28/04 , C04B2111/00482 , E04D7/00 , E04F13/02 , E04F15/12 , C04B38/08 , C04B38/10 , C04B40/00
摘要： Method for pneumatically applying lightweight hydraulic cementitious compositions in which the cementitious binder and lightweight aggregate are pre-granulated with a portion of the total water of hydration prior to introduction into the pneumatic conveying and applying means. Remaining water of hydration is added near the exit end of the conveying and applying means in the form of a foam. Use of a copious foam and less than normal amounts of total water permits one to obtain relatively quick setting products having very low dry density, after curing and drying.

2. 发明授权

US3915822A Electrochemical system with bed sections having variable gradient 失效
标题翻译：具有可变梯度的床段的电化学系统
公开(公告)号：US3915822A
公开(公告)日：1975-10-28
申请号：US47242674
申请日：1974-05-22
申请人： GRACE W R & CO
发明人： VELTMAN PRESTON LEONARD
IPC分类号： C02F1/461 , C02F1/76 , C02F1/78 , C25C7/00 , C02B1/82 , B01K3/04 , C02C5/12
CPC分类号： C02F1/46114 , C02F1/001 , C02F1/46 , C02F1/76 , C02F1/78 , C02F9/00 , C25C7/00 , C25C7/002
摘要： Processes and apparatus for electrochemical reactions including an electrochemical system in which an electrolyte is treated in a reaction zone containing at least one bed of electrically conductive particles, the improvement includes a reactor for contacting electrolyte with plural transverse electrodes in the reaction zone. The electrodes define separate adjacent electrochemical sections in the reaction zone. Each of the electrodes is biased anodically or cathodically to provide an electrochemical potential between alternating electrodes, and the system establishes different voltage gradients across adjacent sections of the reaction zone. Electrolyte can be circulated through the sections serially in a direction parallel to the voltage gradients of each section to obtain homogeneous treatment. One or more foraminous insulating diaphragms may be disposed in the reaction zone between anodic and cathodic electrodes. The system is useful for pollution control, electrochemical synthesis and metal recovery.
摘要翻译：包括电化学系统的电化学反应的方法和装置，其中在包含至少一层导电颗粒的反应区中处理电解质，该改进包括用于使电解质与反应区中的多个横向电极接触的反应器。电极在反应区中限定了相邻的电化学部分。每个电极被阳极或阴极偏置以在交替电极之间提供电化学电势，并且系统在反应区的相邻部分上建立不同的电压梯度。电解液可以在平行于每个部分的电压梯度的方向上串联循环，以获得均匀的处理。一个或多个有孔绝缘隔膜可以设置在阳极和阴极之间的反应区中。

3. 发明授权

US3600222A Dried sucrose-containing products from separate feeds 失效
标题翻译：来自独立饲料的含蔗糖的干燥产品
公开(公告)号：US3600222A
公开(公告)日：1971-08-17
申请号：US3600222D
申请日：1969-11-25
申请人： GRACE W R & CO
发明人： VELTMAN PRESTON LEONARD , VERDONK JOHANNES C J , THOMSEN LARS OLAV
IPC分类号： C13B30/02 , C13F1/02 , C13F3/00
CPC分类号： C13B30/028
摘要： A PROCESS FOR PRODUCING SOLID SUGARS WHEREIN SEPARATE FEEDS OF SUCROSE SOLUTION AND OF FINE SUCROSE PARTICLES ARE DISPERSED IN A CURRENT OF HEATED AIR, WHEREBY THE PARTICLES ARE COATED WITH THE SOLUTION WHICH IS EVAPORATED LEAVING

A SOLID PRODUCT CONTAINING SUBSTANTIALLY ALL THE SUGAR FED TO THE PROCESS.

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