公开(公告)号：US3850971A

公开(公告)日：1974-11-26

申请号：US9824470

申请日：1970-12-15

Applicant: DYNAMIT NOBEL AG

Inventor： BLEH O ,  TERMIN E ,  LENZ A

IPC: C01B33/16 ,  C07F7/04

CPC classification number: C01B33/163

Abstract: 1. PROCESS FOR MAKING POROUS SILIC ACID GEL WHICH COMPRISES CONTACTING METHYL OR ETHYL SILICATE, OR POLYMETHYL OR POLYETHYL SILICATE IN THE PRESENCE OF A HYDROLYSIS ACTIVATING SUBSTANCE, WITH ABOUT 70 TO 120% OF THE STOICHIOMETRIC AMOUNT OF WATER WITH STIRRING UNDER CONDITIONS TO ACHIEVE HOMOGENEITY TO EFFECT HYDROLYSIS AND PRODUCE SOLID SILICIC ACID HAVING A SPECIFIC SURFACE OF ABOUT 50 TO 1000 M.2/G., SEPARATING THE SOLID SILICK ACID FROM THE LIQUID AND DRYING THE RESULTING POROUS SILICIC ACID.

公开(公告)号：US3773816A

公开(公告)日：1973-11-20

申请号：US3773816D

申请日：1971-10-07

Applicant: DYNAMIT NOBEL AG

Inventor： HONIGSCHMID GROSSICH R ,  LENZ A ,  BLEH O ,  SANDAU W

IPC: C07F5/06 ,  C07C31/28

CPC classification number: C07F5/069

Abstract: THE PROCESS FOR PRODUCING AN ALKALI METAL ALUMINUM ALKOXIDE OF THE FORMULA MAL(OR)4 WHEREIN M IS AN ALKALI METAL AND R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL CONTAINING IN EXCESS OF THREE CARBON ATOMS, CYCLOALKYL AND ARALKYL, WHICH COMPRISES BOILING A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN EXCESS OF AN ALCOHOL OF THE FORMULA ROH AND A MIXTURE OF AT LEAST ONE ORGANIC SOLVENT INDIFFERENT IN RELATION TO THE OTHER REACTANTS AND AN EXCESS OF AN ALCOHOL OF THE FORMULA ROH WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) A MIXTURE OF AN ALKALIMETAL HYDROXIDE AND ALUMINUM TRIHYDROXIDE, (B) A MIXTURE OF AN ALKALI METAL ALKOXIDE AND ALUMINUM TRIHYDROXIDE AND (C) AN ALKALI METAL ALUMINATE, AND REMOVING WATER FORMED IN THE REACTION. THE WATER IS PREFERABLY DISTILLED OFF FROM THE REACTION WITH EXCESS ALCOHOL, CONDENSED, THE WATER REMOVED FROM THE CONDENSATE BY LIME, SILICA GEL OR A ZEOLITE, AND THE WATER-FREE ALCOHOL IS RECYCLED TO THE REACTION UNTIL THE WATER CONTENT IN THE ALCOHOL DISTILLING OFF FALLS TO A VERY LOW LEVEL. ADVANTAGEOUSLY THE ALUMINUM IS USED IN SLIGHT EXCESS TO ENSURE THE PRODUCT IS FREE OF EXCESS ALKALI METAL ALKOXIDE.

公开(公告)号：US3753660A

公开(公告)日：1973-08-21

申请号：US3753660D

申请日：1970-11-20

Applicant: DYNAMIT NOBEL AG

Inventor： LANGENHOFF F ,  TERMIN E ,  BLEH O ,  KOLB R

IPC: H05B3/62 ,  C01G23/02 ,  C01G25/04 ,  C01G31/00 ,  C01G31/04 ,  C22B1/08 ,  C22B34/12 ,  F27D11/02 ,  H05B3/66 ,  B01D1/00

CPC classification number: C01G25/04 ,  B01J2208/00415 ,  B01J2208/00433 ,  B01J2208/00495 ,  C01G31/04 ,  C22B1/08 ,  C22B34/1222 ,  Y02P10/23

Abstract: In a tubular reactor carrying a bed of solid material into which carbon electrodes project for heating the material upon passage of a current, the outside ends of said electrodes being connected to metallic conductors in turn connected to a supply of current, the invention involves pouring lead about the end of each electrode to effect improved contact between the electrode and its respective metallic conductor. The process involving use of such electrodes to react carbon with chlorine and the oxide of silicon or metals such as vanadium, titanium or zirconium is also covered.

Abstract translation: 在载有固体材料床的管状反应器中，碳电极在电流通过时突出加热材料，所述电极的外端连接到金属导体，并连接到电流供应，本发明涉及将铅 关于每个电极的端部以实现电极和其相应的金属导体之间的改善的接触。 涉及使用这种电极使碳与氯反应的方法以及硅或金属如钒，钛或锆的氧化物也被覆盖。