Abstract: A method of manufacturing a ceramic capacitor of the lead filled type includes coating the ends of the ceramic monolith with a terminating paste incorporating oxidizable metal particles characterized in that the lead will not wet to oxides of the metals but will wet to unoxidized or lightly oxidized increments of the metals. The paste is fused in an oxidizing environment or is fused in an inert environment and thereafter heated in an oxidizing environment with the result that the metal increments adjacent the exterior of the fused coating are oxidized whereas the metal at the interior portions of the paste are unoxidized or only slightly oxidized. Upon metal injection, the lead will wet to the interior portions of the fused paste but will not wet to the exterior of the paste whereby injected chips may be readily separated and whereby the size of the chip is rendered predictable due to the absence of adherent lead.

Abstract: A method of manufacturing a ceramic capacitor of the lead filled type includes coating the ends of the ceramic monolith with a terminating paste incorporating oxidizable metal particles characterized in that the lead will not wet to oxides of the metals but will wet to unoxidized or lightly oxidized increments of the metals. The paste is fused in an oxidizing environment or is fused in an inert environment and thereafter heated in an oxidizing environment with the result that the metal increments adjacent the exterior of the fused coating are oxidized whereas the metal at the interior portions of the paste are unoxidized or only slightly oxidized. Upon metal injection, the lead will wet to the interior portions of the fused paste but will not wet to the exterior of the paste whereby injected chips may be readily separated and whereby the size of the chip is rendered predictable due to the absence of adherent lead.

Abstract: In the production of bisphenols, color bodies which have been adsorbed on cationic exchange resins are removed by washing with at least one phenate selected from phenates of an alkali metal and of ammonia.

Abstract: A method of selectively causing drug activation within a living body which comprises administering to a living body a polyamino arylmethylnitrile capable of undergoing controlled cleavage to form a polyaminoaryl methyl ion and/or a free cyanide ion, the drug also being soluble in the body serum so that it is capable of passing via oral, intramuscular or intra-peritoneal administration into a body, and then subjecting a localized area of said body to radiation capable of causing cleavage of the cyanide ion from the drug precursor, the resulting ions acting to sensitize the localized area to radiation.

Abstract: The acidizing of a reservoir, particularly one that contains an asphaltenic oil, is improved by using an aqueous solution of strong acid which contains enough sulfosalicylic acid to prevent the formation of iron-asphaltenic solids.

Abstract: A reservoir which contains an asphaltenic oil can be acidized with an aqueous acid without causing a deposition of permeability impairing iron-asphaltene compounds by dissolving or dispersing an effective amount of salicylic acid within at least the first injected portion of the aqueous acid.

Abstract: This invention is a process for mining an underground formation of coal having high oxygen content by contacting the coal with a heated basic aqueous solution for a time sufficient to dissolve at least a portion of the coal formation to produce a coalate. Periodically or continuously, some of the dissolved material is removed to facilitate or improve access to the coal formation. The dissolved coal or coalate is then treated with a regenerating agent to recover basic aqueous solution from the coalate.

Abstract: The invention relates to the beneficiation of both natural and artificial titaniferous ores, specifically ilmenites by adding to the ores a fluoride, preferably a normally insoluble fluoride in an amount such that the percentage of fluorine ion relative to the titania values lies between 13% and 50%, adding to the mixture hydrochloric acid, the fluorine ions acting as an activating agent. After dissolution, the titanium is precipitated out, as a mixture of titanium dioxide, titanium oxy hydroxy fluoride and titanium oxy fluoride, the iron values largely remaining in solution.