Abstract: A method for countering the adverse effect of contaminating metals on a crystalline aluminosilicate catalyst comprising contacting the catalyst with a reducing gas under suitable conditions. In a preferred embodiment, the catalyst contains antimony.

Abstract: Synthesis of isethionic acid comprising contacting an alkali metal isethionate and an organic acid.

Abstract: A polyamine substituted dithiocarbamate compound is provided. Also provided are minerals depressant compounds for recovering mineral values from an ore or concentrate wherein the values are recovered in a froth from an aqueous slurry. A process of forming the minerals depressant compounds and an improved ore flotation process using the minerals depressant compounds are also provided.

Abstract: A process for the recovery of minerals from an ore or concentrate containing the same wherein the minerals are recovered in a froth from an aqueous pulp containing the ore or concentrate and wherein one or more mineral flotation agents are employed in the aqueous pulp to control the type of minerals in the froth is provided. The mineral flotation agents used in carrying out the process comprise compounds formed by the addition of hydrogen sulfide to dicyclopentadiene.

Abstract: A polyamine substituted dithiocarbamate composition is provided. Also provided are minerals depressant compositions for recovering mineral values from an ore or concentrate wherein the values are recovered in a froth from an aqueous slurry. A process of forming the minerals depressant compositions and an improved ore flotation process using the minerals depressant compositions are also provided.

Abstract: Tri-alkali metal di(carboxyalkyl) dithiocarbamates and triammonium-di(carboxyalkyl) dithiocarbamates which can be characterized by the formula ##STR1## wherein R and R' can be the same or different and are selected from the group consisting of alkylene radicals, preferably alkylene radicals each preferably having from 1 to 12 carbon atoms, and wherein M is selected from the group consisting of alkali metal atoms and ammonium; their use as ore flotation depressants; and a process for making these novel compositions are disclosed.

Abstract: A method for the conversion of mercaptoalkanols to dithiodiglycols having good color properties and low residual odor is provided. Mercaptalkanols are reacted in the presence of small amounts of anhydrous ammonia and an oxygen-containing gas in the absence of any metal-containing catalysts to produce the desired dithiodiglycol products.

Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, R.sup.2 is selected from the group consisting of alkylene radicals and wherein M is selected from the group consisting of ammonium and alkali metal atoms, their use as ore flotation depressants, and a process for making these novel compositions are disclosed.

Abstract: Polyhydroxytrithiocarbonates can be used as depressants in ore flotation.

Abstract: Hydrocarbyl-substituted sulfinyl and sulfonyl carboxylic acids are effective corrosion inhibitors for surfaces of various metals. In one embodiment, mineral acid compositions such as aqueous hydrochloric acid metal cleaning solutions exhibit diminished corrosiveness when corrosion inhibiting additives of the invention are present in the compositions.

Abstract: Process for the preparation of ore flotation collectors is disclosed comprising reacting an alkali metal salt of a 2-mercaptobenzimidazole with carbon disulfide. Also disclosed is process for recovery of minerals by flotation employing the novel ore flotation collectors prepared as described above.

Abstract: Tri-alkali metal di(carboxyalkyl) dithiocarbamates and triammonium-di(carboxyalkyl) dithiocarbamates which can be characterized by the formula ##STR1## wherein R and R' can be the same or different and are selected from the group consisting of alkylene radicals, preferably alkylene radicals each preferably having from 1 to 12 carbon atoms, and wherein M is selected from the group consisting of alkali metal atoms and ammonium; their use as ore flotation depressants; and a process for making these novel compositions are disclosed.

Abstract: Metal working lubricating compositions useful as a precoating oil and as a coating and rolling operation, comprising mineral or synthetic oil and a sulfur containing carboxylic acid such as n-dodecylthioacetic acid and n-butylthioacetic acid. The composition can also contain vegetable oil or animal fat. The lubricant composition provided is particularly useful in the cold rolling of steel and other metals.

Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, and wherein X is selected from the group consisting of alkali metal atoms, their use as ore flotation suppressants, and a process for making these novel compositions are disclosed.

Abstract: Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, preferably alkylene radicals each having from 1 to 4 carbon atoms, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, and wherein X is selected from the group consisting of alkali metal atoms, their use as ore flotation suppressants, and a process for making these novel compositions are disclosed.

Abstract: A cracking catalyst used to crack oil to produce gasoline or higher-boiling hydrocarbon fuel is contacted with both (A) antimony or a compound thereof such as antimony tris(0,0-dipropyl phosphorodithioate) and (B) a modifying composition consisting essentially of carbon, hydrogen, nitrogen, and sulfur produced by the treatment of a metal salt of a dialkyl dithiocarbamate with a hydrolyzable germanium (IV) compound such as germanium tetrachloride, the contacting of the catalyst with (A) and (B) prior to, during, or after use of the catalyst in a cracking process being effective in precluding or reducing adverse effects of metals such as nickel, vanadium, and iron.

Abstract: Diammonium bis(carboxyalkyl)-trithiocarbonate salts, dialkali metal bis(carboxyalkyl)-trithiocarbonate salts, their use as flotation agents, and a process for the production of these novel compositions are disclosed.

Abstract: Ammonium N-carboxyalkyl-S-carboalkoxy dithiocarbamates, alkali metal N-carboxyalkyl-S-carboalkoxy dithiocarbamates, their use as flotation agents, and a process for the production of these novel compositions are disclosed.

Abstract: A method for countering the adverse effect of contaminating metals on a crystalline aluminosilicate catalyst comprising contacting the catalyst with a reducing gas under suitable conditions.In a preferred embodiment, the catalyst contains antimony.

Abstract: A method for countering the adverse effect of contaminating metals on a cystalline aluminosilicate catalyst comprising contacting the catalyst with a metallic passivating agent to effect some passivation of the effects of the contaminant metals and with a reducing gas under suitable conditions. In a preferred embodiment, the catalyst contains antimony.