CAS: 75-74-1; Tetramethyllead

专利信息

专利号:US-3647837-A
优先权日:1970-02-09
标 题 :Synthesis of organolead compounds
发明人：WILLIAMS KENNETH C
权利人:ETHYL CORP
摘要:A METHOD OF MAKING ORGANOLEAD COMPOUNDS AND PARTICULARLY THE SYNTHESIS OF TETRANEOPENTYLLEAD AND HEXANEOPENTYLDILEAD FROM AN INORGANIC LEAD (II) SALT, AND THE USE OF SAID LEAD COMPOUNDS FOR DECREASING KNOCK IN INTERNAL COMBUSTION ENGINES.

专利号:US-3647839-A
优先权日:1969-11-20
标题 :Synthesis of tetramethyllead
发明人：BARTLETT RONALD S
权利人:PPG INDUSTRIES INC
摘要:A PROCESS IS DESCRIBED FOR THE PREPARATION OF TETRAMETHYLLEAD WHICH INVOLVES REACTING METHYL CHLORIDE AND SODIUM-LEAD ALLOY TOGETHER IN THE PRESENCE OF A CATALYST INVOLVING A LITHIUM-ALUMINUM ALLOY. THE ALLOY IS DESCRIBED AS CONTAINING AT LEAST 30 PERCENT BY WEIGHT LITHIUM, PREFERABLY 50 PERCENT BY WEIGHT. THE TEMPERATURES OF OPERATION DESCRIBED ARE TYPICALLY FROM 90 TO 150*C.

专利号:US-3655706-A
优先权日:1969-11-20
标题 :Synthesis of tetramethyllead
发明人：BRIODY ROBERT G; NEWYEAR EDWARD G
权利人:PPG INDUSTRIES INC
摘要:A PROCESS IS DESCRIBED FOR THE PREPARATION OF TETRAMETHYLLEAD WHICH INVOLVES REACTING METHYL CHLORIDE AND SODIUM-LEAD ALLOY TOGETHER IN THE PRESENCE OF MAGNESIUMALUMINUM ALLOY AS CATALYST. THE ALLOY IS DESCRIBED AS CONTAINING AT LEAST 20 PERCENT BY WEIGHT MAGNESIUM AND THE TEMPERATURES OF OPERATION ARE DESCRIBED AS BETWEEN 100* C. AND 150*C.

专利号:US-3696009-A
优先权日:1971-09-30
标题:Electro synthesis of tetraorganolead compounds
发明人：MAYERLE EVAN A; MINDERHOUT JAMES R
权利人:NALCO CHEMICAL CO
摘要:TETRAORGANOLEAD COMPOUNDS MAY BE PREPARED BY ELECTROLYZING AQUEOUS SOLUTIONS OF TRIORGANOLEAD SALTS.

专利号:DE-2021792-B2
优先权日:1970-05-01
标题 :METHOD OF SYNTHESIS OF DIAMONDS

专利号:IT-1056416-B
优先权日:1975-11-12
标题:ELECTROLYTIC PROCESS FOR THE SYNTHESIS OF BODY LEAD COMPONENTS