Abstract: Novel catalysts are provided for the polymerization of olefins such as ethylene. These catalysts comprise a novel amorphous aluminophosphate comprising, on a microlevel, sheets of aluminophosphate as well as spheres of aluminophosphate plus a chromium compound. These new catalysts are surprisingly active; result in more co-monomer incorporation than prior art catalysts and reduce the amount of low molecular weight material in the product.

Abstract: Novel catalysts are provided for the polymerization of olefins such as ethylene. These catalysts comprise a novel amorphous aluminophosphate comprising, on a microlevel, sheets of aluminophosphate as well as spheres of aluminophosphate plus a chromium compound. These new catalysts are surprisingly active; result in more co-monomer incorporation than prior art catalysts and reduce the amount of low molecular weight material in the product.

Abstract: Novel catalysts are provided for the polymerization of olefins such as ethylene. These catalysts comprise a novel amorphous aluminophosphate comprising, on a microlevel, sheets of aluminophosphate as well as spheres of aluminophosphate plus a chromium compound. These new catalysts are surprisingly active; result in more co-monomer incorporation than prior art catalysts and reduce the amount of low molecular weight material in the product.

Abstract: A process for alkylating an aromatic polyol, such as catechol, with an alpha olefin oligomer of alpha olefins having from about 8 to 14 carbon atoms or mixtures thereof using an organic sulfonic acid catalyst which is soluble under the alkylation reaction conditions. The liquid alkyl aromatic polyol product is useful as a lubricating oil additive or lubricating oil base stock.

Abstract: Borated alkyl catechols can be stabilized by the addition of certain defined monoalkylamines.Lubricating oils containing a borated alkyl catecholmonoalkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: A method of preparing a borated alkylcatechol by first reacting catechol with boric acid and thereafter alkylating with an olefin.

Abstract: Lubricating oils containing a borated alkyl catechol-diethylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: A one-step solution technique for preparing an aromatic polyimide acid which comprises reacting an aromatic dianhydride with an aromatic diamine in the presence of diglyme and a sufficient amount of a co-solvent to maintain the polyimide acid in solution, said co-solvent having the formula:ROHwhere R is H, an aliphatic branched or straight-chain hydrocarbon having from 1 to 5 carbon atoms or a methoxy substituted aliphatic branched or straight-chain hydrocarbon having from 1 to 5 carbon atoms.

Abstract: A process for the polymerization of ethylene using as the catalyst a novel solid catalytic complex comprising Mg, Si, and either Ti or V. An organoaluminum co-catalyst is also employed. The novel catalytic complex is prepared by a process which comprises:(a) reacting a silanol having the formula ##STR1## where R, R' and R" can be the same or different and are selected from the group consisting of aliphatic hydrocarbons having from 2 to 12 carbon atoms or phenyl or substituted phenyl where such substituents have from one to three alkyl groups, and alkyl group having from one to four carbon atoms and where R" can additionally be selected from --OH, with a magnesium dialkyl where each alkyl group can have from one to 12 carbon atoms to form a first reaction product;(b) reacting said first reaction product with trichlorosilane to form a second reaction product; and(c) reacting said second reaction product with a metal compound having the formula:MeX.sub.

Abstract: A system for automatically controlling the intermittent pumping of a well minimizes fluid pound occurrence without reducing well production. The pump is operated in a learn mode until pump-off of the well when the pump is deactivated for a preset period. The pump is then operated in a control mode in which the pump is repeatedly cycled on to pump the well for at least one stroke less than the pumping time of the learn mode and then off for a preset period. Control mode operation is continued for a predetermined number of cycles after which the learn mode operation is repeated to reset the pumping time for the control mode operation.

Abstract: A novel cement composition for the preparation of a novel aqueous slurry useful in cementing casing in the borehole of a well comprising (1) cement, (2) (a) a hydroxyethylcellulose ether having a critical viscosity or (2) (b) a mixture of a hydroxyethylcellulose ether having a critical viscosity and of a hydroxypropylcellulose ether having a critical viscosity and (3) a dispersant.

Abstract: A novel cement composition for the preparation of a novel aqueous slurry useful in cementing casing in the borehole of a well comprising (1) cement, (2) (a) a hydroxyethylcellulose ether or (2) (b) a mixture of a hydroxyethylcellulose ether and a hydroxypropylcellulose ether, (3) a polysaccharide produced as a result of microbial action and (4) a dispersant.

Abstract: A polymer composition is disclosed and consists essentially of 100 parts by weight of an ethylene-alkyl acrylate copolymer and about 1 to 5 parts by weight of a polymer of a higher alkyl ester of acrylic or methacrylic acid. The polymer compositions have a lower heat seal strength than the ethylene-alkyl acrylate copolymer contained therein.

Abstract: Apparatus is provided to size finely divided catalyst particles so that all of the catalyst particles passing through the apparatus are sized so as to have a maximum particle diameter. The apparatus includes:(a) A sealed cylindrical housing having an arcuate opening cut into its lower surface,(b) A fine mesh screen which overlaps the arcuate opening cut into the cylindrical housing,(c) A hemicylindrical housing attached to the lower surface of the cylindrical housing and defining a cavity in communication with the cylindrical housing,(d) An inlet port in the top center surface of the cylindrical housing,(e) An outlet port in the bottom center surface of the hemicylindrical housing,(f) A shaft rotating axially within the cylindrical housing and having brushes attached thereto which force catalyst particles from the cylindrical housing through the screen and break down catalyst agglomerates introduced into the cylindrical housing.

Abstract: The present invention provides a multistage process for the removal of tar, water and particulate contaminants from a hot product gas resulting from the in-situ gasification of an underground coal deposit, which comprises passing the hot product gas through a first heat exchange zone in indirect heat exchange relationship with a gasification gas to thereby sufficiently reduce the temperature of the product gas so as to separate the tar present in the product gas and provide a substantially tar-free product gas. Thereafter, the tar-free product gas is withdrawn from the first heat exchange zone and passed through at least one subsequent heat exchange zone in indirect or direct heat exchange relationship with a heat exchange material which has a lower temperature than the product gas. A major portion of the water originally present in the hot product gas is removed in the subsequent heat exchange zone.

Abstract: Diesel fuel compositions which contain minor amounts of azides having the formula:X=N.sup.+ =N.sup.-where X is selected from the group consisting of ##STR1## where R and R' can be the same or different and are selected from the group consisting of hydrogen; alkyl straight- and branched chain hydrocarbons having from 1 to 8 carbon atoms; alkoxy groups having from 1 to 8 carbon atoms; aryl; aryloxy; nitro; hydroxy; halo; amino (except ortho to the azido); alkylamino; acyl groups having from 2 to 8 carbon atoms; alkylamido; and carbalkoxy. The minor amount of the azides in part improved cetane numbers (low ignition delay) to the diesel fuel.