摘要:
A PETROLEUM DISTILLATE IS IMPARTED WITH A DISTINCT COLORIZATION BY A LIQUID AZO DYE COMPOSITION SOLUBLE IN THE DISTILLATE. THE LIQUID AZO DYE COMPOSITION IS CHARACTERIZED IN THAT IT (A) HAS A COLOR VALUE WHICH IS AT LEAST ABOUT FORTY PERCENT OF THE COLOR VALUE OF A COMPARABLE SOLID DYE; (B) EXHIBITS PERMANENTLY HOMOGENEOUS LIQUIDITY; (C) IS CAPABLE OF COMPLETE AND SUBSTANTIALLY INSTANTANEOUS SOLUBILITY IN PETROLEUM DISTILLATES; AND (D) ESSENTIALLY CONSISTS OF BETWEEN ABOUT 50-75% BY WEIGHT OF A MIXTURE OF AZO DYES CONTAINING C5-C12 ALKYL BETA-NAPHTHOLS OR P-C5-C12 ALKYL PHENOL IN THE DYE MOLECULE AND ABOUT BETWEEN 50-25% BY WEIGHT OF A LIQUID ORGANIC VISCOSITY DEPRESSANT COMPATIBLE WITH THE AZO DYES.
摘要:
This disclosure relates to water filtering apparatus, employing a replaceable filter element, supported in an assembly having a removable bowl. A deformable seal is provided between the stationary part of the assembly and the bowl, and the upper portion of the bowl extends above the seal to receive water drained from the stationary part during removal and replacement of the filter element. A valve, operative to pass a slight flow of fluid to the exterior of the unit when the bowl is not properly assembled with the stationary part, closed when the apparatus is correctly assembled, indicates proper assembly of the parts.
摘要:
A method of retaining adhesion, reducing blocking, and increasing the solvent resistance of polyvinylidene chloridecoated substrates comprising coating a substrate with a solution or aqueous dispersion of a polyvinylidene chloride composition, removing the volatile matter therefrom, heating the coated substrate to a temperature of from about 100* to about 200* F., and maintaining the temperature of said coated substrate for a period of time ranging from about at least 20 hours for a temperature of about 100* F. to at least about 2 minutes for a temperature of about 200* F.
摘要:
A PROCESS FOR PREPARING AQUEOUS SOLUTIONS OF MANGANOUS CHLORIDE ESSENTIALLY FREE FROM HEAVY METAL CONTAMINANTS BY THE REACTION OF MANGANESE ORE WITH AN AQUEOUS SOLUTION OF FERROUS CHLORIDE FOLLOWED BY REMOVAL OF IRON AND HEAVY METALS BY TREATMENT WITH SULFIDE ION. THE MANGANOUS CHLORIDE SOLUTIONS SO PREPARED ARE SUITABLE FOR FURTHER CHEMICAL PROCESSING OR MAY BE USED TO PREPARE PURE MANGANESE METAL BY ELECTROLYSIS OR OTHER METHODS. IRON HYDROXIDE MAY BE RECOVERED SEPARATELY AS A BY-PRODUCT OF THIS PROCESS FOR USE IN PIGMENTS OR AS A RAW MATERIAL CHARGE FOR THE PRODUCTION OF STEEL.
摘要:
MAGNESIUM OXIDE COATING COMPOSITIONS AND PROCESS FOR APPLYING TO SILICON-CONTAINING MAGNETIC STEEL AN ADHERENT COATING WHICH ACTS AS A SEPARATING MEDIUM TO PREVENT FUSING OR WELDING OF COILED SHEET DURING AN ANNEALING PROCESS AND WHICH COATING PROVIDES ELECTRICAL INSULATIING AND CORROSION RESISTANT PROPERTIES. THE COATING COMPOSITIONS COMPRISE A MAJOR PROPORTION OF MAGNESIUM OXIDE AND A MINOR PROPORTION OF ADDITIVES CONTAINING A BORON COMPOUND, A SODIUM COMPOUND, AND SILICA OR A SILICON-CONTAINING COMPOUND.