Abstract:
Methylaromatic compounds having at least two substituents on vicinal nuclear carbon atoms and the oxidation intermediates thereof wherein at least one methyl substituent is vicinal to a methyl or hydroxymethyl, formyl or carboxyl group, are oxidized at low temperature into polycarboxylic acids having carboxyl groups on vicinal nuclear carbon atoms by reaction in acetic acid and in the presence of molecular oxygen with an active cobaltic salt in high concentration.
Abstract:
A PROCESS FOR THE OXIDATION OF ALKYLPYDRIDINES OF THE FORMULA
(R)M-PYRIDINE
WHEREIN R IS AN ALKYL RADICAL CONTAINING 1 TO 2 CARBON ATOMS AND M IS AN INTEGER OF 1 TO 4, INTO CORRESPONDING PYRIDINECARBOXYLIC ACIDS, WHICH PROCESS COMPRISES REACTTING SAID ALKYLPYRIDINE WITH A COBALT SALT IN A MOLAR RATIO OF ALKYLPYRIDINE TO COBALT SALT OF LOWER THAN 2 WHILE MAINTAINING SUCH A CONCENTRATION OF COBALTIC SALT THAT 2X-A IS BETWEEN 0.1 AND 1.5 X AND A BEING RESPECTIVELY THE MOLARITY OF COBALTIC IONS AND OF SAID COBALT SALT IN THE REACTION MIXTURE, AT A TEMPERATURE OF BETWEEN20 AND 150*C., IN AN ALIPHATAIC CARBOXYLIC ACID HAVING FRONM 2 TO 4 CARBON ATOMS AND IN THE PRESENCE OF MOLECULAR OXYGEN AT A PARTIAL PRESSURE OF 0.2 TO 20 ATMOSPHERES.
Abstract:
A PROCESS FOR THE OXIDATION OF QUINOLINE INTO QUINOLINIC ACID WHICH COMPRISES REACTING QUINOLINE WITH A COBALT SALT IN A MOLAR RATIO OF QUINOLINE TO COBALT SALT LOWER THAN 2, WHILE MAINTAINING A CONCENTRATION OF COBALTIC IONS SUCH THAT 2X-A IS BETWEEN 0.1 AND 1.5, X AND A BEING RESPECTIVELY THE MOLARITY OF SAID COBALTIC IONS AND SAID COBALT SALT IN THE REACTION MIXTURE, SUCH REACTION BEING CARRIED OUT AT A TEMPERATURE BETWEEN 40 AND 150*C. IN THE PRESENCE OF AN ALIPHATIC CARBOXYLIC ACID HAVING FROM 2 TO 4 CARBON ATOMS AND IN THE PRESENCE OF MOLECULAR OXYGEN AT A PARTIAL PRESSURE OF FROM 0.2 TO 20 ATMOSPHERES.
Abstract:
LUBRICATING GREASES COMPRISING 5 TO 25% BY WEIGHT, BASED ON THE WEIGHT OF THE GREASES, OF THICKENING METAL SOAP, 1 TO 10% BY WEIGHT OF AN ANIONIC EMULSION OF UNOXIDIZE POLYETHYLENE HAVING A MEANS MOLECULAR WEIGHT HIGHER THAN 10,00 SAID EMULSION HAVING A POLYETHYLENE CONTENT RANGING FROM 35 TO 60% AND A METAL SULFINATE ANIONIC EMULSIFIER CONTENT RANGING FROM 8 TO 12% BASED ON THE WEGITH OF THE EMUSION, THE MEANS SIZE OF THE POLYETHYLENE PARTICLES BEING COMPRISED BETWEEN 0.02 AND 0.5 MICRON, THE REST OF THE COMPOSITION BEING AN OLEAGINOUS VEHICLE CONTAINING USUAL ADDITIVES FOR LUBRICATING GREASES.
Abstract:
A MIXTURE OF FORMIC ACID, WATER AND ACETIC ACID ARE SEPARATED BY CONTINUOUS DISTILLATION IN A COLUMN STILL BY ADDING THE FEED AT LEAST ABOVE THE TENTH THEORETICAL PLATE AND ADDING AN ESTERIFYING AGENT FOR THE FORMIC ACID CONSISTING OF AN ALCOHOL OR AN ESTER OF THE ALCOHOL IN WHICH THE ALCOHOL HAS AT LEAST THREE CARBON ATOMS AND PREFERABLY 3 TO 8 CARBON ATOMS, AND THE ACID OF THE ESTER BEING HIGHER BOILING THAN FORMIC ACID, THE ESTERIFYING AGENT BEING ADDED IN AN ESTERIFICATION ZONE DISPOSED AT LEAST ONE THEORECTICAL TRAY ABOVE THE FEED LEVEL WHEREBY CONCENTRATED ACETIC ACID ACCUMULATES AT THE BOTTOM OF THE COLUMN AND SUBSTANTIALLY ALL OF THE FORMIC ACID AND WATER PASS OVERHEAD AS THE FORMIC ESTER; THE ESTER CONTINUOUSLY FORMED OF THE FORMIC ACID SERVES AS A WATER ENTAINING AGENT AND PASSES OVERHEAD OF THE COLUMN WITH THE WATER.
Abstract:
N,N-DIALKYL (2-HALO-1-SUBSTITUTED ETHOXYMETHYLENE) IMMONIUM HALIDES ARE FORMED BY HALOGENATION OF OLEFINS IN THE PRESENCE OF N,N-DILOWER ALKYL FORMAMIDE TO FORM NEW COMPOUNDS AND DERIVATIVES. THE COMPOUNDS ARE DECOMPOSED TO VALUABLE 1,2-DIHALO COMPOUNDS, 1-HALO-2-FORMATES AND HALOHYDRINS BY THERMAL DECOMPOSITION, HYDROLYSIS OR ALCOHOLYSIS.
Abstract:
POLYALKYBENZENES HAVING THE SAME NUMBER OF CARBON ATOMS AS THE FEED CONSISTING OF GEM STRUCTURED POLYALKYLCYCLOHEXANES ARE PRODUCED WITH AN ACIDIC, DIFUNCTIONAL DEHYDROGENATION-ISOMERIZATION CATALYST IN A REACTION ZONE MAINTAINED AT A TEMPERATURE IN THE RANGE OF FROM 200 TO 600*C. AND A PRESSURE NO GREATER THAN 750 P.S.I. A PREFERRED PROCESS INCLUDES THE PRODUCTION OF DURENE FROM GEM-TETROMETHYLCYCLOHEXANES.
Abstract:
A process for the improvement of the constitution of soils, which comprises incorporating into said soils an aqueous emulsion of bitumen containing a non-ionic surface-active compound and an anionic surface-active compound.
Abstract:
The invention comprises a Werner complex of the general formula Ni(SCN)2Xn which is insoluble or sparingly soluble, in water at room temperature, wherein X is an alpha-arylalkylamine of the formula in which R1 is either hydrogen or a primary alkyl group and R2 is a phenyl radical carrying at least two further alkyl substituents in any of the 3-, 4- and 5-positions, and n is either 2 or 4. Preferably R1 contains 1 to 6 carbon atoms and the alkyl substituents of the phenyl radical have not more than two carbon atoms. The complexes may be made, for example, by adding a solution of the arylalkylamine in heptane, or heptane-chloroform mixture, at room temperature to an aqueous solution obtained by dissolving NiCl2.6H2O and KSCN in water, and separating the resulting precipitate by filtration. The complexes may be used to form clathrates with aromatic compounds and the complex may be formed in the presence of the compound to be clathrated. The clathrate may be formed by heating a complex Ni(SCN)2X4 with one or more clathratable compounds to a temperature sufficient to bring about complete dissociation of the complex into Ni(SCN)2X2 and free amine, and then cooling to effect recombination of the dissociated components to form a clathrate consisting of Ni(SCN)2X4 and the clathratable compound. The complexes of the formula Ni(SCN)2X4 may be used to resolve a mixture of aromatic organic compounds containing at least one clathratable compound by forming a clathrate, separating the clathrate from the mixture and dissociating the clathrate to recover the organic compounds. The clathrate may be dissociated by heating, by treatment with an acid which does not react with the clathrated compound, by steam stripping or treatment with an inert solvent. Clathratable compounds which may be extracted or resolved are, for instance, a ,a ,a -tri -fluorotoluene, nitrobenzene, nitrotoluenes, di-, chlorobenzenes, trichlorobenzenes, cresols, and benzonitrile. Novel amines which are suitable for complex formation are a -(3,4-dimethyl phenyl) ethylamine and corresponding butylamine and heptylamine; a - (3,4,5 - trimethylphenyl) - ethylamine and - propylamine; a -(3,5 - dimethylphenyl) ethylamine and a -(3,4,5 - triethylphenyl) ethylamine. They may be made by reductive amination of the corresponding ketone, for example by heating the ketone with ammonium formate. Specifications 931,775, 935,099 and 945,012 are referred to.