Abstract:
Es wird eine Erfindung zur katalytischen Beschleunigung von VerbrennungsProzessen von Treibstoffen und Heizölen beschrieben, die strukturstabile zinnhaltige Elemente in einem Durchströmungsbehälter zur Erzeugung von Zinnorganika in Form von einem Durchströmungsbehälter mit Legierungsstruktur oder Pads in einem Treibstofffilterbehälter oder anderen Behälter besitzt, die durch ihre Zersetzung und Entzündung bei Auftreten von dem Licht einer Entzündung oder Flamme zu einer extrem schnellen Zündverteilung, damit Vermeidung von Ruß und Absenkung der Stickoxidkonzentrationen führen.
Abstract:
1,135,455. Grignard reagents; tetraalkyl tin compounds; carboxylic acids. CHAS. PFIZER & CO. Inc. 8 Sept., 1966 [4 Oct., 1965], No. 40244/66. Headings C2C and C2J. [Also in Division C5] A Grignard compound RMgX where R = alkyl with 1-18 carbon atoms, alkenyl with 2-18 carbon atoms, alkynyl with 2-18 carbon atoms, phenyl or benzyl and X = C1, Br or I is prepared by reacting RX and magnesium in an anhydrous, normally liquid hydrocarbon or excess RX, at a temperature between 0‹ C. and the reflux temperature of the solution, in the presence of a catalytic amount (generally 0À1-10À0%) of a trialkyl, triphenyl, tribenzyl, alkyldiphenyl or dialkylphenyl phosphite or phosphine, dialkyl formamide or a dialkyl, alkylphenyl, diphenyl or dibenzyl sulphone, the alkyl group containing 1-10 carbon atoms. The Grignard compound formed is used in this solution, e.g. in Example I valeric acid is formed from n-butyl magnesium bromide by treatment with dry ice and hydrolysing. Tetraalkyltin compounds are prepared either by adding to the solution of the Grignard compound (two stage process) or to the initial solution before reaction (one stage process) at least one tin compound R y SnX( 4-y ) where y = 0-3. The organotin compound separates in the organic layer and is extracted by stripping off the solvent. Mixed tin compounds such as dipropyl, octenyl, octadecynyl tin (Example V) are prepared by using stoichiometric amounts of n-propyl bromide, 1 -bromoctene-4, 1 -bromooctadecyne-9, stannic chloride and magnesium in anhydrous hexane in the presence of triphenyl phosphite as catalyst.
Abstract:
This invention provides a method for imparting invisible markings for identification purposes to petroleum hydrocarbons by incorporating one or more infrared fluorescing compounds therein. Certain infrared fluorophores from the classes of squaraines (derived from squaric acid), phthalocyanines and naphthalocyanines are useful in providing invisibly marked petroleum hydrocarbons such as crude oil, lubricating oils, waxes, gas oil (furnace oil), diesel oil, kerosene and in particular gasoline. The near infrared fluorophores are added to the hydrocarbons at extremely low levels and are detected by exposing the marked hydrocarbon compositions to near infrared radiation having a wavelength in the 670-850 nm range and then detecting the emitted fluorescent light via near infrared light detection means.