Abstract: A continuous process for the production of dichlorohydrin by the reaction of chlorine, water and allyl chloride, having reduced water consumption wherein the dichlorohydrin formed is extracted into an inert organic solvent and the remaining aqueous reaction product is electrodialyzed, and at least a portion of the resulting diluate is recycled to the reaction.

Abstract: In a multistage reaction system for the preparation of dichlorohydrin by the reaction of allyl chloride, water and chlorine and where the hydrochloric acid by-product is removed by electrodialysis, increased efficiency for acid removal by electrodialysis results from at least partial neutralization of the acid in the electrodialysis concentrate receiving stream, enabling the use of smaller electrodialysis membrane area and or lower energy consumption.

Abstract: A process for recovery of glycerine from saline waters-containing glycerine comprises evaporating the water to precipitate a major amount of any salts present, separating the liquid phase and diluting it with water to low viscosity, electrodialysing the diluted liquid phase to obtain, (1) a concentrate stream which is recycled to the evaporative step, and (2) a diluate stream which is subjected to fractionation distillation to obtain glycerine as an overhead fraction.

Abstract: Glycerine is recovered from an aqueous waste stream containing but minor amounts of glycerine by the requested steps of; (1) evaporating, (2) contacting with pentanol, (3) separating precipitated salt, (4) flashing to remove pentanol, and (5) vacuum distillation. This process is particularly useful treating saline waste water resulting from the manufacture of epoxy resins.

Abstract: An integrated process for modifying the H.sub.2 /CO ratio in specified gaseous streams is disclosed, the process being characterized by bulk removal of H.sub.2 S, adjustment of H.sub.2 /CO ratio by water gas (or carbon monoxide) shift, and removal of remaining H.sub.2 S. CO.sub.2 may be recovered, and the process may be operated to produce a gas comprising principally hydrogen.

Abstract: An integrated process for modifying the H.sub.2 /CO ratio in specified gaseous streams is disclosed, the process being characterized by bulk removal of H.sub.2 S, adjustment of H.sub.2 /CO ratio by water gas (or carbon monoxide) shift, and removal of remaining H.sub.2 S. CO.sub.2 may be recovered, and the process may be operated to produce a gas comprising principally hydrogen.

Abstract: The drying of moist CO.sub.2 at conditions above or near the critical point of CO.sub.2 is improved by contacting the CO.sub.2 with an aqueous liquid electrolyte desiccant.

Abstract: A process for the removal of oxalate ion from solutions containing polyvalent metal chelates of nitrilotriacetic and the decomposition products thereof is described, the process being characterized by the addition to such solutions of sufficient composition capable of providing hydrogen ion to precipitate ferrous oxalate, but not remove the bulk of the polyvalent metal chelate or chelates of nitrilotriacetic acid.

Abstract: A process for removal of H.sub.2 S from gaseous streams is described, the process being characterized by division of the gaseous stream into major and minor portions, oxidation of the H.sub.2 S in the major portion with an oxidizing reactant solution comprising a polyvalent metal chelate or chelates of nitrilotriacetic acid, and utilization of the minor portion as a source of hydrogen ions to assist precipitation of ferrous oxalate from a bleed stream of the oxidizing reactant solution.

Abstract: A cyclic process for the removal of hydrogen sulfide, and carbon dioxide, from a variety of gas streams is disclosed. The gas stream containing the sour gas(es) is contacted with an aqueous solution of a specific reactant ligand or chelate, or mixtures thereof, optionally in an absorbent, containing a stabilizer selected from specified bisulfites for improvement of chelate life. The hydrogen sulfide is converted to sulfur, CO.sub.2 may be absorbed to produce a purified gas stream, and the reactant chelate is reduced. The process includes sulfur removal and regeneration of the reactant chelate.

Abstract: A cyclic process for the removal of H.sub.2 S from gas stream is disclosed, the process being characterized by reaction of the H.sub.2 S to sulfur employing specific aqueous solution reactants, and by recovery of the sulfur employing specific extractants.

Abstract: A process for the removal of H.sub.2 S and COS from gas streams containing high concentrations of H.sub.2 S is described, the process being characterized by close integration of absorption and reaction techniques. In particular, the bulk of the H.sub.2 S is first absorbed from the gas stream, the balance being removed by oxidation after treatment of the stream to hydrolyze the COS.

Abstract: A cyclic process for the removal of H.sub.2 S from gas streams is disclosed, the process being characterized by reaction of the H.sub.2 S to sulfur employing specific aqueous solution reactants, and by recovery of the sulfur employing frothing and extraction techniques.

Abstract: An aqueous alkaline waste stream containing at least organic ester having insecticidal properties is acidified and extracted with a C.sub.5 -C.sub.10 hydrocarbon to reduce the organic content of the waste stream.

Abstract: A cyclic process for the removal of H.sub.2 S from gas streams is disclosed, the process being characterized by reaction of the H.sub.2 S to sulfur employing polyvalent metal reactant solutions, and by a novel sulfur recovery scheme. Sulfur recovery, either before or after regeneration, is accomplished by separation of the sulfur-containing admixture into lean and concentrated solutions, and by extracting the concentrated solution with a compound having the formula C.sub.n H.sub.2n+1 OH, wherein n is a number from 4 through 18.

Abstract: Hydrogen sulfide, carbon dioxide, and carbonyl sulfide are removed from a gas stream in a staged procedure characterized by absorption of the CO.sub.2 and COS and conversion of the hydrogen sulfide to produce sulfur in an absorbent mixture, hydrolysis of the carbonyl sulfide to produce a gas stream of hydrogen sulfide and carbon dioxide, and removal of the hydrogen sulfide from the gas stream.

Abstract: A cyclic process for the removal of hydrogen sulfide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a solution of the Fe(III) chelate of nitrilotriacetic acid and a modifier having the formula C.sub.n H.sub.2n-1 OH, wherein n is a whole number from 4 through 22. The hydrogen sulfide is converted to sulfur, and the Fe(III) chelate is converted to the Fe(II) chelate. The process includes sulfur removal and regeneration of the Fe(III) chelate.

Abstract: A cyclic process for the removal of hydrogen sulfide, and carbon dioxide, from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with an aqueous solution of specific reactant materials, optionally in an absorbent, containing specific dialcohols for reaction rate improvement. The hydrogen sulfide is converted to sulfur, CO.sub.2 may be absorbed to produce a purified gas stream, and the reactant material is reduced. The process includes sulfur removal and regeneration of the reactant.

Abstract: A process for purification of water containing certain organic hetero compounds by contacting with certain crystalline iron silicates found to be unexpectedly efficient to adsorb said organic compounds from the water.

Abstract: A process for sour water treatment in which the sour components are removed from a sour water stream in an electrodialysis step in which the sour water stream becomes the dilute stream. A resulting concentrate stream, richer in the sour components than the original stream is then steam stripped. In order to balance the acid and basic components in the dilute stream the component lacking may be added to the stream. In order to prevent build-up of non-strippable components in the concentrate stream a part of the latter is recombined with the dilute stream either before or after the electrodialysis step.