Abstract: A process is disclosed for reforming two hydrocarbon feedstocks by contacting one feedstock and hydrogen with a reforming catalyst in a first reforming zone at reforming conditions including a relatively high reforming pressure; separating a hydrogen-rich gas and first hydrocarbon product from the effluent from the first zone at a pressure below the first reforming pressure; recycling a first portion of the hydrogen-rich gas to provide hydrogen for the first reforming zone; contacting the other feedstock and a second portion of the hydrogen-rich gas with a second reforming catalyst in a second reforming zone at reforming conditions including a pressure lower than the first reforming pressure, with all of the hydrogen gas introduced into the second reforming zone being obtained solely from the first reforming zone effluent; and recovering a second hydrocarbon product from the effluent from the second reforming zone.

Abstract: Waste water containing dissolved acid-gas and ammonia impurities is processed for the separate recovery of the acid gas, ammonia and recycle water. In a further aspect, a purified pyrolysis gas is produced by treating a raw pyrolysis gas product stream utilizing the aforementioned recycle water and a pair of coupled acid-gas-absorber and acid-gas-stripper columns.

Abstract: The hydrogen sulfide content of hydrogen-sulfide-contaminated elemental sulfur in the liquid phase is reduced by an aqueous extraction which is carried out under superatmospheric pressure and a suitable temperature.

Abstract: In the absorption of an acid gas by an aqueous alkaline solution under gas-liquid absorption conditions, undesirable foaming is reduced by contacting the aqueous solution in a separate contact zone with a hydrocarbon solvent containing an effective amount of an extraction adjuvant.

Abstract: 2-PYRROLIDONE IS SEPARATED FROM AQUEOUS SOLUTION BY PHASE SEPARATION IN THE PRESENCE OF POTASSIUM HYDROGEN PHOSPHATE.

Abstract: New compositions of matter useful as lime soap dispersants comprise the 2-hydrocarbyl-1,4-butanediol disulfates.

Abstract: 1,4-DIACYLOXY-2-BUTENE USEFUL AS A DIOL PRECURSOR IS PRODUCED BY REACTING BUTADIENE WITH AN ALKALI METAL SALT IN THE PRESENCE OF IODINE, IODINE MONOCHLORIDE OR IODINE TRICHLORIDE.

Abstract: A process for preparing alkyl maleic anhydrides which -comprises heating a lower alkenyl succinic anhydride in the -presence of a catalytic amount of a palladium salt in -combination with a weakly basic material under conditions -effective to isomerize the alkenyl succinic anhydride.

Abstract: Novel thiophenes of the formula ##STR1## wherein X and Z individually are nitro, fluoro, chloro or bromo, Y is hydrogen, nitro, fluoro, chloro or bromo, R.sup.1 is alkyl or aryl and R.sup.2 is hydrogen or haloalkylthio, are useful for the prevention or cure of fungal infections.

Abstract: A sulfur-based aggregate-asphalt composition prepared by a process comprising mixing aggregate with asphalt and a molten sulfur system, wherein the molten sulfur system is made by a method comprising heating a mixture of sulfur and a sulfur plasticizer. Dicyclopentadiene is a preferred material for plasticizing the sulfur. Preferably the sulfur system contains, in addition to the sulfur plasticizer, a fibrous filler such as glass fiber or asbestos, and an inorganic filler such as talc powder.

Abstract: Herbicidal oxythio-substituted ureas of the formula: ##STR1## wherein R, R.sup.1 and R.sup.2 individually are hydrogen, alkyl, cycloalkyl, bicycloalkyl, alkoxy or aryl, and R.sup.3 is alkyl, cycloalkyl, bicycloalkyl or aryl. The oxythio-substituted ureas are prepared by reacting an N-chlorothio urea and a hydroxylic compound.

Abstract: An extreme-pressure lubricating composition is disclosed comprising an oil of lubricating viscosity having dispersed therein 1 to 60 weight percent of hydrated potassium borate microparticles having a boron-to-potassium ratio of about 2.5 to 4.5 and, optionally, from 0.01 to 5.0 weight percent of an antiwear agent selected from: (a) a zinc dihydrocarbyl dithiophosphate having from 4 to 20 carbons in each hydrocarbyl group; (b) a C.sub.1 to C.sub.20 ester, C.sub.1 to C.sub.20 amide, or C.sub.1 to C.sub.20 amine salt of a dihydrocarbyl dithiophosphoric acid having from 4 to 20 carbons in each hydrocarbyl group; or (c) mixtures thereof.

Abstract: Alkenyl halolactone esters of monools and polyols are described. These materials are useful as lubricating oil detergency and/or dispersancy additives.

Abstract: N-(N'-alkynylcarbamylmethyl)-2,6-dialkyl-alpha-haloacetanilides have herbicidal activity, particularly in preemergent applications against grassy weeds.

Abstract: A process for preparing N-alkyl terephthalamates is disclosed and comprises contacting within a liquid phase reaction medium a di(C.sub.1 -C.sub.4 alkyl) terephthalate and a C.sub.8 -C.sub.30 primary or secondary monoamine in the presence of 0.1-10 weight percent based on the weight of the reactants of boric acid.

Abstract: Monocarboxylic acid salts of hydrocarbyl amines are provided, which function as rust inhibitory and dispersant hydrocarbon fuel additives, wherein the hydrocarbyl substituent contains from 30 to about 300 carbon atoms.

Abstract: A process for preparing a substituted or unsubstituted dihydrofuran from a substituted or unsubstituted butadiene monoxide which comprises contacting the butadiene monoxide with a catalyst comprising a hydrogen halide selected from the group consisting of hydrogen iodide or bromide and a Lewis acid.

Abstract: 3,3'-(3-Methylpentylene-1,5-dioxy) dipropionic acid and esters thereof useful as plasticizers.

Abstract: A process for preparing aromatic isocyanates from aryl-subsituted urethanes by transesterifying a urethane with a phenolic compound to form an N-aryl arylcarbamate, and thermally decomposing the N-aryl arylcarbamate to form the aromatic isocyanate.

Abstract: 5-(1-Hydroxy-2,2,2-trihaloethylimino)-, 5-(1,2,2,2-tetrahaloethylimino)- and 5-(polyhalovinylethylimino)-2,4-imidazolidinediones and their use as herbicides and fungicides.