Abstract: Low molecular weight copolymers of acrylic acid and salts of vinylsulfonic acid are superior dispersants and high temperature deflocculants for the stabilization of the rheological properties of aqueous claybased drilling fluids subjected to high levels of calcium ion contamination.

Abstract: A solid polymeric body comprising a polymer matrix containing a water-soluble reagent leachable into a fluid containing condensed water, said matrix being reagent permeative and insoluble in said fluid containing condensed water and the said body preferably having a softening point substantially above that of the temperature of the fluid environment in which it is to be employed is useful for the introduction of an additive reagent into said fluid particularly when said fluid is located in a subterranean formation.

Abstract: An aqueous slurry which comprises (a) a cement; (b) about 0.05 to 5.0 wt. % of a copolymer of N-vinylpyrrolidone and a salt of styrenesulfonic acid based on the dry weight of said cement; (c) about 0.05 to 5.0 wt. % of a formaldehyde condensed naphthalene-sulfonic acid salt based on the dry weight of said cement; and (d) water, said cement, said copolymer and said dispersant being dispersed in said water to form said aqueous slurry.

Abstract: Deposit formation on the contact surfaces of structures containing heated hydrocarbon fluids such as refinery units, particularly units associated with the distilling process such as preheating stages, is inhibited by incorporating in the feed stock from 0.0001 to 0.01 weight percent of the combination of thiophene-containing polycondensed aromatic/naphthenic compounds of number average molecular weight (Mn) from 200 to 1000 and a macrocyclic polyamine of 2 to 8 nitrogen atoms per molecule and, if desired, at least one other additive such as an oil-soluble dispersant, antioxidant, antipolymerant, anti-foulant and mixtures thereof into said hydrocarbon stream.

Abstract: A formulation suitable for preparation of a spotting pill effective in the release of stuck pipe in a borehole during a drilling operation which formulation contains a mono and/or poly alkylene glycol ether and viscosified sufficiently to make the formulation compatible with a solids weighting material such as barite.

Abstract: A method for the recovery of fugitive dust by encapsulation of fugitive calcined coke dust into agglomerate balls having substantial compressive strength which involves the steps of water-wetting calcined coke dust with an aqueous solution of a polyethoxylated alkyl phenol wetting agent to provide moist coke dust and thereafter admixing the moist dust with an asphalt emulsion whereby nonfriable agglomerate balls of asphalt encapsulated calcined coke dust can be recovered.

Abstract: A process for removing suspended solids particularly difficulty filterable solids from an oil obtained as a refinery process bottom fraction from both steam and catalytic cracking units (e.g. catalytic cracker bottoms) or from coal conversion processes (e.g. coal tar) by adding to the oil a water-soluble agglomerating agent comprising an aqueous solution of a polyamine containing primary, secondary and tertiary amine functional groups with nitrogen content at least 25 wt. %.

Abstract: Apparatus for determining the corrosion rate of industrial condensing equipment so that corrosion inhibitors may be effectively utilized to control corrosion. The apparatus which simulates a cooling circuit for process streams which require the introduction of reagents to inhibit corrosion includes a primary condenser with automatic cooling control and more than one serially connected cooling-monitoring section, associated means for monitoring corrosion rate, temperature, and/or dewpoint and means for adjustibly controlling the process stream cooling rate of said cooling-monitoring sections. The process stream is flowed through said serial connected cooling-monitoring sections in order to cool the vapors in a manner which simulates cooling that will take place in a parallel connected heat exchanger unit.

Abstract: A method for treating particulate solids such as coal to reduce the cohesive strength of such solids when frozen which consists of spraying said solids with a hydrocarbon liquid solution of a balanced blend of surfactants which blend will form a single phase microemulsion at 20.degree. C. when added to water at the salinity of the water on said solids at a water to hydrocarbon ratio in the range between 99:1 and 85:15, said blend represented by the monoethanol amine salt of dodecyl o-xylene sulfonic acid and a dinonylphenol reacted with 9 moles of ethylene oxide, onto the wetted surface of said solids to form a single phase microemulsion which is optimally designed to undergo a lipophilic shift upon contacting the surface of said particles whereby an in-situ water-in-oil coarse emulsion is formed on the surfaces of said particles.

Abstract: Processes for the manufacture of substantially haze free lubricating oil additives such as the zinc salts of dihydrocarbyldithiophosphoric acid and calcium phenate comprising the addition of an effective amount of an acrylamide polymer as a water-in-oil emulsion after the neutralization of an oil solution of the oil soluble moiety of said additive such as the neutralization of a dihydrocarbyldithiophosphoric acid by zinc oxide whereby the resulting colloidal by-products, untreated raw materials and suspended impurities are more susceptible to subsequent separation processes, such as centrifugation and filtration.

Abstract: High softening point, i.e. greater than 140.degree. C., aromatic petroleum resins are prepared by polymerizing with an AlCl.sub.3 catalyst an unsaturated hydrocarbon mixture of one part of (1) a feedstock fraction obtained from the thermal cracking of petroleum boiling in the range of 135.degree.-220.degree. C. and principally composed of aromatic substituted olefins, e.g. styrene and its derivatives and indenes and its derivatives and from 0.3 to 1 part by weight of (2) oligomers of cyclopentadiene.

Abstract: An additive composition effective in the release of stuck pipe in a borehole during a drilling operation which composition contains propoxylated C.sub.18 -C.sub.32 alkanols, an oil-soluble emulsifier-wetting agent and a liquid hydrocarbon diluent and for enhanced elevated temperature emulsion stability may include an imidazoline.

Abstract: An improved synthetic twine and method of manufacturing same are disclosed. The synthetic twine comprises at least one longitudinally extending oriented synthetic ribbon which has been fibrillated to provide a net-like structure having fine fibril stems connected by finer fibril branches, and a synthetic binder in thin band form made of a material compatible with the synthetic ribbon. The synthetic binder is spirally wrapped around and fused to the synthetic ribbon. The method of making a twine comprises the steps of providing at least one longitudinally extending ribbon, orienting the synthetic ribbon and fibrillating the synthetic ribbon to provide a net-like structure having fine fibril stems connected by finer fibril branches. Thereafter, a synthetic binder in thin bank form is spirally wrapped and fused around the synthetic ribbon which has been oriented and fibrillated.

Abstract: Azole and azoline disulfides useful as corrosion inhibitors and antiwear agents are prepared by the halogen-induced coupling of a thiol reactant e.g., hydrocarbyl mercaptans, with a metal azole thiolate, e.g. the potassium salt of 3,5-bis-mercapto 1,2,4-thiadiazole or 2,5-bis-mercapto 1,3,4 thiadiazole in a 2-phase reaction medium comprising a mixture of a hydrocarbon and water.

Abstract: Thiocarbamyl derivatives, including thioureas and thiocarbamic esters derived from the reaction of an alkenyl isothiocyanate with an amine and alcohol or thio, respectively, have utility as an additive for hydrocarbons, particularly fuels and mineral lubricating oils whereby enhanced anticorrosion, oxidation inhibition and/or dispersancy activity is imparted to said hydrocarbons.

Abstract: Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-rust agents for gasoline.

Abstract: Thio-bis-(hydrocarbon-bisoxazolines) which are the reaction products of thio-bis-(hydrocarbon substituted dicarboxylic acid material), for example, thio-bis-(polyisobutenyl succinic anhydride), with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl) amino-methane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-corrosion agents for fuels.

Abstract: Azole and azoline disulfides useful as corrosion inhibitors and antiwear agents are prepared by the halogen-induced coupling of a thiol reactant e.g., hydrocarbyl mercaptans, with a metal azole thiolate, e.g. the potassium salt of 3,5-bis-mercapto 1,2,4-thiadiazole or 2,5-bis-mercapto 1,3,4-thiadiazole in a 2-phase reaction medium comprising a mixture of a hydrocarbon and water.

Abstract: Oil-soluble spiro-[cycloalkane-oxazolidines], e.g. spiro-[cyclopentane-1,2-(4'-ethyl-4'-methylol)-oxazolidines-1', 3'] which are the reaction products of a cycloalkanone and an amino-propane monool or diol are additives which feature activity in functional fluids, e.g. mineral oil base automatic transmission fluids, as copper corrosion inhibitors and as chelating agents.

Abstract: Oil-soluble 2 and/or 8 alkyl substituted 1-aza-3, 7-dioxabicyclo [3.3.0] oct-5-yl methyl alcohols which are the reaction products of an aldehyde and tris [hydroxy-methyl] aminomethane (THAM) are mineral oil additives which feature activity in automatic transmission fluid as copper alloy corrosion inhibitors.