Abstract: The washing step that usually follows the deoiling of phosphate rougher concentrate is eliminated by adding lime to said rougher concentrate following the deoiling.

Abstract: Ferrierite ore is activated for normal paraffin conversion by exchanging with the ammonium ion, heating in air at a temperature from about 775.degree. F to about 1000.degree. F and exchanging again with the ammonium ion. Activation of ammonium ferrierite for conversion of branched paraffins is accomplished (1) by treatment with HF or (2) by heating in steam at a temperature within the above range, followed by exchange with ammonium ion. Ferrierite ore per se may be treated with HF, but to complete activation for conversion of branched paraffins, the HF treated ore must be exchanged with the ammonium ion.

Abstract: Succinimides of aminoaryl sulfonic acid salts provide exceptional detergency, viscosity control and anticorrosion properties to lubricants and greases and to other fluid compositions useful in hydraulic systems. Ammonium, alkylammonium, alkali metal, alkaline earth metal and groups IB, IIB, VIB, VIIB, VIII metal salts of aminoaryl sulfonic acid salts, and the salts of sulfanilic acid in particular, can be reacted with alkenyl or alkylsuccinic anhydride, acid or ester, in which the alkenyl or alkyl group may contain from 8 to about 500 carbon atoms, to yield the products of this invention. These products are understood to be novel. Suitable modifications of the aforementioned are the succinimides of di(aminoaryl sulfonic acid) salts, aniline disulfonic acid salts and corresponding aminonaphthalene sulfonate salts which are also useful in the compositions of this invention.

Abstract: Hydrocracked oils are stabilized against deterioration due to exposure to light and/or air by adding to them a small amount of aromatic amine having a nitro group, the amino and nitro groups being ortho or para to each other.

Abstract: A regenerator design and method are provided which rely upon a segmented regeneration gas distributor grid to vary regeneration gas flow upwardly through the bed of catalyst above. The design includes an expanding annular section formed by a curved vertically extending baffle positioned adjacent and downstream of the catalyst tangential inlet and a radical dilute phase baffle extending from slightly beneath the bed surface to above the cyclone inlets. The width of the dilute phase baffle is from the wall of the regenerator to the center thereof, and beyond the rim of the catalyst outlet. Further, all cyclone diplegs between the outlet and inlet should be positioned to discharge tangentially to the swirl.

Abstract: Lubricants are stabilized against oxidation by adding thereto a stabilizing amount of an ester of a hindered hydroquinone. An example of a suitable material is (4-hydroxy-3,5-di-t-butylphenyl)laurate.

Abstract: Phosphorus- and sulfur-containing metal salts are prepared by reacting a mixture comprising a metal oxide and a hydrocarbon in the presence of an oxidizing gas and then reacting this product with a phosphorus sulfide. The invention provides lubricant compositions containing the product.

Abstract: As synthesized by previous methods, ZSM-4 zeolites are crystallized in the presence of substantial amounts of a tetramethylammonium hydroxide or halide. When synthesized in this way, they contain the tetramethylammonium cation as well as a metal cation such as sodium. To obtain a more catalytically active form, the sodium ion must be exchanged to very low levels. Catalysts prepared in this manner have been found to be quite low in stability. By synthesizing these zeolites in the presence of pyrrolidine or choline salts, ZSM-4 having a different organic nitrogen containing cation but the same crystal structure as previously prepared ZSM-4 is obtained. Catalysts made therefrom are, surprisingly, much more stable than those prepared from ZSM-4 made by previous methods.

Abstract: This invention is directed to the shape selective conversion of a hydrocarbon charge over erionite which has been activated by the steps comprising calcining the erionite as a first step, contacting with a solution of an ammonium salt, contacting with a solution of metal salt containing a metal such as calcium, calcining again, contacting again with a solution of an ammonium salt and then with a solution of a metal salt containing nickel or another similar metal, and finally calcining. It is also directed to the catalyst utilized in affecting said conversion and to the method for preparing such catalyst.

Abstract: Gaseous C.sub.2 -C.sub.5 olefins, either alone or in admixture with paraffins having 1 to 5 carbon atoms, are converted into gasoline blending stock with a good research octane number by passage over ZSM-4, ZSM-12, ZSM-18, chabazite or Zeolite beta.

Abstract: Lubricants are stabilized against oxidative degradation by adding thereto a stabilizing amount of an ester of an anthranilic acid. An example of a suitable material is n-octyl N-naphthylanthranilate (n-octyl N-phenyl-1-naphthyl-2'-carboxylate).

Abstract: The detergency properties of a fuel or a lubricant are improved by adding thereto a Mannich base product prepared by reacting a high molecular weight alkyl substituted hydroxyaromatic compound, a polyoxyethylene polyamine and an aldehyde.

Abstract: Ferrierite ore is activated for normal paraffin conversion by exchanging with the ammonium ion, heating in air at a temperature from about 775.degree. to about 1000.degree. F and exchanging again with the ammonium ion. Activation of ammonium ferrierite for conversion of branched paraffins is accomplished (1) by treatment with HF or (2) by heating in steam at a temperature within the above range, followed by exchange with ammonium ion. Ferrierite ore per se may be treated with HF, but to complete activation for conversion of branched paraffins, the HF treated ore must be exchanged with the ammonium ion.

Abstract: In a hydrocarbon conversion process for the catalytic desulfurization of a hydrocarbon feedstock the process is carried out at a low hydrogen partial pressure to obtain formation of a low sulfur product and conversion to butanes and propane, as desired, wherein the isoC.sub.4 /n-C.sub.4 ratio is high, the process being carried out in the presence of an active, stable and selective catalyst containing at least one noble metal component incorporated with a crystalline aluminosilicate. A pressure from 100 to below 500 psig is used. The process contemplates simultaneously pretreating reformer feedstock in the presence of a hydrocracking catalyst with controlled hydrocracking thereof. Preferred highly effective catalysts are those containing palladium incorporated with a crystalline aluminosilicate zeolite.

Abstract: Lubricants are stabilized with an organophosphorusbenzotriazole product, resulting in the ability to support higher load factors in the lubricated system.

Abstract: The load carrying ability of a lubricant is improved by adding to such lubricant an effective amount of diorganophosphorus derivative of urethane (ethyl carbamate).

Abstract: Lubricants are stabilized against wear and corrosion by adding an additive amount of a novel substituted thiadiazole. These are derived from 2,5-dimercapto-1,3,4-thiadiazole and other moieties, as for example an organophosphorus moiety.

Abstract: Naphthyl acetals are made by reacting a naphthol with an alkyl vinyl ether under the influence of an aliphatic acid catalyst. For example n-butyl-1-naphthyl acetal is made by reacting 1-naphthol with n-butyl vinyl ether in the presence of up to about 5 mole percent, based on moles of naphthol, of a weak organic acid such as acetic acid or other aliphatic monocarboxylic acids.

Abstract: The invention provides lubricant compositions containing (1) a product of reaction between an alkenylsuccinic anhydride and trishydroxymethylaminomethane and (2) an anti-rust amount of 1,1'-binaphthol.

Abstract: Gaseous C.sub.2 -C.sub.5 olefins, either alone or in admixture with paraffins, are converted into an olefinic gasoline blending stock with a good research octane number in good yields by passage over a ZSM-5 type zeolite catalyst of controlled acidity. The catalyst must have reduced activity for cracking of n-hexane or aromatization of olefins or paraffins if it is to be useful for the purpose of this invention.