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1.发明授权Process for producing titanium trichloride aluminum trichloride in controlled proportions 失效在控制比例中生产三氯化钛三氯化铝的方法
公开(公告)号：US3770656A
公开(公告)日：1973-11-06
申请号：US3770656D
申请日：1970-02-09
Applicant: DART IND INC
CPC classification number: B01J27/06 , C01G23/002 , C01P2002/50 , C08F10/00 , C08F4/655
Abstract: AN IMPROVED PROCESS FOR PRODUCING CO-CRYSTALS OF TITANIUM TRICHLORIDE AND ALUMINUM TRICHLORIDE WITH A DESIRED COMPOSITION PREFERABLY ABOUT THREE MOLES OF TITANIUM TRICHLORIDE AND ONE MOLE OF ALUMINUM TRICHLORIDE, AND SUBSTANTIALLY FREE OF IMPURITIES IS DESCRIBED. SUCH CRYSTALS ARE OF VALUE AS A CATALYST, PARTICULARLY, FOR EXAMPLE, FOR PREPARING POLYPROPYLENE. THE CO-CRYSTALS ARE PREPARED BY REACTING TITANIUM TETRACHLORIDE WITH ALUMINUM IN AN EXCESS OF TITANIUM TETRACHLORIDE. AFTER REACTION, EXCESS TITANIUM TETRACHLORIDE IS VAPORIZED BY HEATING THE COCRYSTALS. THE IMPROVED PROCESS PROVIDED HEREIN INVOLVES DRY BALL MILLNG OF A SELECTED ADDITION OF ALUMINUM TRICHLORIDE WITH THE CO-CRYSTALS AFTER FORMATION, FOR ENRICHING THE CO-CRYSTALS BACK TO STOICHIOMETRY TO COMPENSATE FOR ALUMINUM TIRCHLORIDE VOLATILIZED IN THE DRYING OPERATION.
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2.发明授权Removal of titanium tetrachloride from titanium trichloride aluminum trichloride 失效从三氯化钛三氯化钛中去除钛酸四铁
公开(公告)号：US3770657A
公开(公告)日：1973-11-06
申请号：US3770657D
申请日：1970-02-09
Applicant: DART IND INC
CPC classification number: C01G23/002 , B01J27/06 , C01P2002/50
Abstract: AN IMPROVED PROCESS FOR PRODUCING CO-CRYSTALS OF TITANIUM TRICHLORIDE AND ALUMINUM TRICHLORIDE WITH A COMPOSITION OF SUBSTANTIALLY THREE MOLES OF TITANIUM TRICHLORIDE AND ONE MOLE OF ALUMINUM TRICHLORIDE OR OTHER DESIRED RATIO, AND SUBSTANTIALLY FREE OF IMPURITIES IS DESCRIBED. SUCH CRYSTALS ARE OF VALUE AS AN ACTIVE CATALYST, PARTICULARLY, FOR EXAMPLE, FOR PREPARING POLYPROPYLENE. THE IMPROVED PROCESS PROVIDED HEREIN INVOLVES THE REMOVAL OF TRACES OF TITANIUM TETRACHLORIDE FROM ALREADY FORMED CO-CRYSTALS BY BALL MILLING THE CO-CRYSTALS IN THE PRESENCE OF A SUFFICIENT QUANTITY OF ALUMINUM POWDER TO SUBSTANTIALLY QUANTITATIVELY REACT WITH TITANIUM TETRACHLORIDE.
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3.发明授权
公开(公告)号：US3769234A
公开(公告)日：1973-10-30
申请号：US3769234D
申请日：1970-02-09
Applicant: DART IND INC
CPC classification number: B01J27/06 , C01G23/002 , C01P2002/50 , C08F10/00 , C08F4/655
Abstract: AN IMPROVED PROCESS FOR PRODUCING CO-CRYSTALS OF TITANIUM TRICHLORIDE AND ALUMINUM TRICHLORIDE WITH A DESIRED COMPOSITION, PREFERABLY SUBSTANTIALLY THREE MOLES OT TITANIUM TRICHLORIDE AND ONE MOLE OF ALUMINUM TRICHLORIDE AND SUBSTANTIALLY FREE OF IMPURTIES IS DESCRIBED. SUCH CRYSTALS ARE OF VALUE AS AN ACTIVE CATALYST, PARTICULARLY, FOR EXAMPLE, FOR PREPARING POLYPROPYLENE. THE CO-CRYSTALS ARE PREPARED BY REACTING TITANIUM TETRACHLORIDE WITH ALUMINUM IN AN EXCESS OF TITANIUM TETRACHLORIDE. AFTER REACTION, EXCESS TITANIUM TETRACHLORIDE IS VAPORIZED BY HEATING THE CO-CRYSTALS. THE IMPROVED PROCESS PROVIDED HEREIN INVOLVES DRY BALL MILLING OF ALUMINUM TRICHLORIDE WITH ALUMINUM POWDER PRIOR TO REACTING WITH TITANIUM TETRACHLORIDE SO THAT A SELECTED EXCESS OF ALUMINUM TRICHLORIDE OVER THE DESIRED COMPOSITION IS PRESENT IN THE PRODUCT TO COMPENSATE FOR ALUMINUM TRICHLORIDE VOLATILIZED IN THE DRYING OPERATION. THIS SERVES THE MULTIPLE FUNCTIONS OF YIELDING CO-CRYSTALS OF CONTROLLED COMPOSITION, ACTIVATING THE ALUMINUM POWDER FOR COMPLETE REACTION, PROMOTING INITIATION OF REACTION BETWEEN ALUMINUM AND TITANIUM TETRACHLORIDE AND ENHANCING RATE OF REACTION TO OBVIATE ANY NEED FOR STIRRING OF THE REACTION MIXTURE.
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