Abstract: A catalytic process is provided for converting a charge consisting essentially of methanol, dimethyl ether or mixtures thereof to a hydrocarbon product rich in ethylene and propylene by contact, under conversion conditions, with a catalyst comprising the crystalline aluminosilicate zeolite designated "ZSM-34".
Type:
Grant
Filed:
November 4, 1976
Date of Patent:
March 14, 1978
Assignee:
Mobil Oil Corporation
Inventors:
Edwin N. Givens, Charles J. Plank, Edward J. Rosinski
Abstract: A catalytic process is provided for converting an organic charge consisting essentially of methanol, dimethyl ether or mixtures thereof together with at least about 0.25 moles of water per mole of said organic charge to a hydrocarbon product rich in ethylene and propylene by contact, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite of the erionite-offretite family.
Type:
Grant
Filed:
November 4, 1976
Date of Patent:
March 14, 1978
Assignee:
Mobil Oil Corporation
Inventors:
Edwin N. Givens, Charles J. Plank, Edward J. Rosinski
Abstract: A catalytic process is provided for the selective production of para-xylene by contacting, under conversion conditions, a charge stock containing, as a major reactant, at least one hydrocarbon selected from the group consisting of toluene, a C.sub.3 -C.sub.10 olefin and mixtures of the foregoing with a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and having combined therewith boron in an amount of at least about 0.2 percent by weight.
Abstract: The invention provides a lubricant composition having improved antiwear properties resulting from the addition thereto of a product made by reacting a partially esterified multifunctional alcohol with a phosphorus trihalide or a dihydrocarbyl phosphonate.
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.
Type:
Grant
Filed:
December 1, 1976
Date of Patent:
March 7, 1978
Assignee:
Mobil Oil Corporation
Inventors:
Robert C. Wilson, Jr., Albert B. Schwartz
Abstract: A catalytic process is provided for the selective production of para-xylene by contacting, under conversion conditions, a charge stock containing, as a major reactant, at least one hydrocarbon selected from the group consisting of toluene, a C.sub.3 -C.sub.10 olefin and mixtures of the foregoing with a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and having combined therewith boron in an amount of at least about 0.2 percent by weight.
Abstract: A catalytic process is provided for the selective production of para-xylene by contacting, under conversion conditions, a charge stock containing, as a major reactant, at least one hydrocarbon selected from the group consisting of toluene, a C.sub.3 -C.sub.10 olefin, a C.sub.5 -C.sub.10 naphthene, a C.sub.3 -C.sub.10 paraffin, and mixtures of the foregoing with a catalyst comprising a composite of a crystalline aluminosilicate zeolite and antimony oxide, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12.
Abstract: A catalytic process is provided for converting lower monohydric alcohols and their ethers, especially methanol and dimethyl ether, to a hydrocarbon mixture rich in C.sub.2 -C.sub.3 olefins, by contact, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina mole ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and containing, in cationic form, between about 0.01 and about 1.9 milliequivalents per gram of one or more metals characterized by an ionic radius exceeding 1 Angstrom.
Abstract: A catalytic process is provided for converting a charge consisting essentially of methanol, dimethyl ether or mixtures thereof to a hydrocarbon product rich in ethylene and propylene by contact, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite characterized by pores, the major dimension of which is less than 6 Angstroms and the capability, under said conditions, of producing less than 20 weight percent methane in said hydrocarbon product.
Type:
Grant
Filed:
December 6, 1976
Date of Patent:
December 13, 1977
Assignee:
Mobil Oil Corporation
Inventors:
Clarence D. Chang, William H. Lang, Anthony J. Silvestri
Abstract: A catalyst is provided, which is especially applicable for the selective production of certain desired hydrocarbons, comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and having contained within the interior crystalline structure thereof added amorphous silica in an amount of at least about 0.1 and preferably between about 2 and about 10 weight percent. The invention described herein also encompasses synthesis of the specified catalyst and use of the same in selectively producing low molecular weight olefins and/or para-xylene from appropriate charge stocks.
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.
Type:
Grant
Filed:
January 9, 1976
Date of Patent:
November 22, 1977
Assignee:
Mobil Oil Corporation
Inventors:
Frank B. Eisenhardt, Stanislaus F. Muehlberger
Abstract: Means are provided for imparting an adherent wear and fatigue-resistant thin surface film on a metal object prior to contact of said object with another surface by the application of dinonylphenyl hydrogen phosphonate to form a surface reaction coating on the metal object.
Abstract: A two-step process for preparing a stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to a highly oxidative environment is provided. The first step of the present process comprises contacting a lubricating oil stock with elemental sulfur in the presence of a catalyst material selcted from the group consisting of alumina, silica, aluminosilicate, a metal of Groups II-A, II-B, VI-B or VIII of the Periodic Table of Elements, an oxide of a metal of Groups II-A, II-B, VI-B or VIII, a sulfide of a metal of Groups II-A, II-B, VI-B or VIII, clay, silica combined with an oxide of a metal of Groups II-A, III-A, IV-B or V-B, and combinations thereof in a flow reactor or under conditions comparable to those existing in a flow reactor. The second step of the present process comprises contacting the product of the first step with hydrogen in the presence of alumina impregnated with at least about 10 weight percent of MoO.sub.3 and at least about 2.
Type:
Grant
Filed:
June 8, 1976
Date of Patent:
October 11, 1977
Assignee:
Mobil Oil Corporation
Inventors:
Robert F. Bridger, Costandi A. Audeh, El-Ahmadi I. Heiba
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.
Type:
Grant
Filed:
November 24, 1975
Date of Patent:
October 11, 1977
Assignee:
Mobil Oil Corporation
Inventors:
El-Ahmadi I. Heiba, Robert E. Kinney, George E. Stead
Abstract: Organic compound conversion in the presence of a new class of heterogeneous catalyst is provided. Said new class of heterogeneous catalyst comprises a substrate having a minimum surface area of about 10 m.sup.2 /g and having pores with a minimum pore diameter of about 5 Angstrom Units, said substrate being modified by at least one amine functional member coordinated to a metal function, said amine functional member acting as a bridging member between said substrate and said metal function.
Type:
Grant
Filed:
December 27, 1976
Date of Patent:
October 11, 1977
Assignee:
Mobil Oil Corporation
Inventors:
Thomas Owen Mitchell, Darrell Duayne Whitehurst
Abstract: Lubricant compositions are provided which contain: oleaginous media, and an antiwear and water tolerance improving amount of a product formed by reacting (a) a compound having the formula: ##STR1## where R' is a substantially unbranched paraffinic alkyl group containing from about 10 to about 36 carbon atoms, and R is a hydrocarbyl group containing from 1 to about 4 carbon atoms with at least one hydrogen atom present on the carbon atom which is bonded to the oxygen; (b) a substituted imidazoline of the formula: ##STR2## where one of the R.sup.2 and R.sup.3 substituents must be a substantially unbranched paraffinic or olefinic hydrocarbyl group containing from about 12 to about 35 carbon atoms; and the other R.sup.2 or R.sup.
Abstract: A process is provided for disproportionation of toluene in a reaction zone maintained under conditions such that said disproportionation is accomplished in the vapor-phase, with a hydrogen/hydrocarbon mole ratio of from 0 to 4, and in the presence of a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica/alumina mole ratio of at least 12 and a constraint index, hereinafter defined, within the approximate range of 1 to 12, said catalyst under said conditions being capable of long stability and of affording a high yield of disproportionation products with favorable selectivity toward para-xylene.
Abstract: A catalytic process is provided for converting lower monohydric alcohols and their ethers, especially methanol and dimethyl ethers, to a hydrocarbon mixture rich in C.sub.2 -C.sub.3 olefins and mononuclear aromatics with high selectivity for para-xylene production by contact, under conversion conditions, with a catalyst comprising a crystalline aluminosilicate zeolite, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12, said catalyst having been modified by the addition thereto of a minor proportion of an oxide of boron or magnesium either alone or in combination, or in further combination with an oxide of phosphorus.
Abstract: Propylation of toluene with selective production of cymene is accomplished by vapor phase reaction of toluene and propylene at a temperature between about 400.degree. and about 600.degree. F. in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, said zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12.
Abstract: A metallic reforming catalyst, consisting of platinum and iridium or platinum, iridium and copper on a porous carrier provides excellent conversion of naphtha to C.sub.5.sup.+ product. A method of incorporating the metals or metal compounds on the carrier and preparing the finished catalyst using dimethyl sulfoxide is a novel procedure and provides unexpected catalytic properties. Novel reforming operations using these catalysts under moderate or severe conditions do not drastically alter the product yield.