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公开(公告)号：US3663176A
公开(公告)日：1972-05-16
申请号：US3663176D
申请日：1969-07-24
发明人： CAGLE GLEN E , WITT DONALD R
CPC分类号： G01N31/225 , Y10S436/904 , Y10T436/177692 , Y10T436/186 , Y10T436/207497
摘要： An oxygen detector which undergoes a color change to indicate the presence of oxygen and certain oxygen-containing compounds in a gas stream in which the oxygen or the oxygen-containing compound can be present in a concentration of less than 1 parts per million which comprises a supported oxide of a metal of group VB or VIB of the periodic table, the metal being in a lower valence state.
摘要翻译： 经历颜色变化以指示氧气和某些含氧化合物在气流中的存在的氧检测器，其中氧气或含氧化合物可以以小于百万分之1的浓度存在，其包含 元素周期表的VB族或VIB族金属的负载氧化物，金属处于较低价态。
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22.发明授权Process for the removal of catalyst residues in a polyolefin treating system 失效在聚烯烃处理系统中去除催化剂残留物的方法
公开(公告)号：US3631163A
公开(公告)日：1971-12-28
申请号：US3631163D
申请日：1967-02-23
发明人： WITT DONALD R
摘要： REMOVAL OF CATALYST RESIDUES FROM POLYMER TREATED IN A SYSTEM UTILIZING A CATALYST FORMED ON MIXING A GROUP VIII METAL SALT OF AN ORGANIC ACID AND A GROUP I-A, II-A, OR III-A REDUCING METAL COMPOUND IS IMPROVED BY ADDITION OF A SOLID ADSORBENT MATERIAL PRIOR TO THE ADDITION OF THE REDUCING METAL COMPOUND.
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公开(公告)号：US3624063A
公开(公告)日：1971-11-30
申请号：US3624063D
申请日：1969-07-10
发明人： WITT DONALD R
摘要： A process for producing particle-form olefin polymer in which the size of the silica-supported chromium oxide catalyst is selected to regulate the molecular weight distribution of the polymer.
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公开(公告)号：US3168589A
公开(公告)日：1965-02-02
申请号：US11034461
申请日：1961-05-16
发明人： WITT DONALD R
CPC分类号： B01J27/06 , B01J31/146 , C07C2/26 , C07C2521/04 , C07C2521/12 , C07C2531/14 , C08F10/00 , C08F4/52
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25.发明授权
公开(公告)号：US3018279A
公开(公告)日：1962-01-23
申请号：US68371057
申请日：1957-09-13
发明人： WITT DONALD R
IPC分类号： C08F10/00
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