Abstract: A process for the production of a color-stable composition containing cardanol, including (a) subjecting crude, cashew nutshell liquid to distillation to obtain a distillate; (b) reacting the distillate with acetic anhydride to obtain a reaction mixture; and (c) subjecting the reaction mixture to fractional distillation is provided. A method for the production of color-stable phenalkamines, including (a) subjecting crude, cashew nutshell liquid to distillation to obtain a distillate; (b) reacting the distillate with acetic anhydride to obtain a reaction mixture; (c) subjecting the reaction mixture to fractional distillation to obtain a cardanol-containing fractional distillate; and (d) reacting the fractional distillate with an aliphatic amine and formaldehyde to form a color-stable phenalkamine is also provided.

Abstract: A method for producing bisphenol A in prill form is disclosed. Molten bisphenol is top-fed into a prilling tower via a plate containing a plurality of nozzles. A gas coolant guided through a circuit is led into said tower in a counter flow direction. The prills are cooled to about room temperature, collected at the bottom of the tower and removed. Also disclosed is the device for carrying out the inventive method and the prills thus produced.

Abstract: Disclosed herein are a stable m-vinylphenol composition comprising m-vinylphenol and tolylene-2,4-diamine and/or N,N-dimethyl-p-phenylenediamine added thereto, a method of stabilizing m-vinylphenol, which comprises adding tolylene-2,4-diamine and/or N,N-dimethyl-p-phenylenediamine to m-vinylphenol, and a method of purifying m-vinylphenol by distillation, which comprises adding tolylene-2,4-diamine and/or N,N-dimethyl-p-phenylenediamine to m-vinylphenol upon the purification of m-vinylphenol by distillation.

Abstract: The invention relates to a process for preparing prilled bisphenol A by granulation which comprises adding compounds soluble in molten bisphenol A, not affecting adversely the melt color of bisphenol A to any significant extent, and have a melting point of 60.degree. C. or more to bisphenol A and granulating and also to a process which comprises adding the reaction mother liquor or cyrstallization mother liquor produced in the manufacturing step of bisphenol A to bisphenol A or the adduct of bispheol A and phenol or a mixture of bispheol A and phenol, removing the phenol, and granulating. The processes yield prilled bispheol A which have high strength and resist powdering.

Abstract: A process comprising the addition of a degradation inhibiting effective amount of an ammonium, alkali metal, alkaline earth metal or transition metal of oxidation number +2 salt of an aliphatic mono or dicarboxylic acid to a composition comprising a phenol and a bisphenol, the addition occurring prior to a procedure which subjects the bisphenol to substantial heat, said bisphenol produced from an acidic ion exchange resin catalyzed reaction of a phenol and a ketone or aldehyde.

Abstract: Lactic, malic and glyceric acids have been found to be superior to the hydroxy acids here-to-fore employed for the stabilization of bisphenols. These hydroxy carboxylic acids or their ammonium or alkali metal salts can be added to the feed reactants used to make the bisphenols or to the reaction mixture after the reaction is complete or at any point in between. They are particularly useful when the bisphenol is exposed to high temperatures, e.g. during the separation of the bisphenol from the reaction mixture or in a melt.

Abstract: The sulfonation of o-alkylphenols by reaction with sulfuric acid is improved to give higher conversion to disulfonated o-alkylphenol by adding a small amount of a polybasic carboxylic acid (e.g. oxalic acid) to the o-alkylphenol. The sulfonated product is converted to a dinitro-o-alkylphenol by reaction with nitric acid or salt thereof.

Abstract: A method for stabilizing color, inhibiting color development, and reducing color of monoalkyl phenols by incorporation of N,N-diethylhydroxylamine, preferably from about 5 parts per million to about 50 parts per million. Also a color stabilized monoalkyl phenol composition comprising a monoalkyl phenol and a color stabilizing amount of N,N-diethylhydroxylamine.

Abstract: A bisphenol is stabilized against thermal decomposition in the molten state in a non-reactive environment by incorporation in the bisphenol of a small stabilizing amount of a quaternary ester of ortho titanic acid and an aliphatic alcohol.

Abstract: Process for producing compounds useful in perfumery including isochromans and acylated indane hydrocarbons with an alkylene oxide or with a lower acyl halide in the presence of a hydrocarbon or hydrocarbon mixture containing C.sub.5 and C.sub.10 alkanes at a temperature of from -20.degree. C. up to -5.degree. C. In the case of forming isochromans, the resulting alcohol is reacted, in situ, with a lower alkanol and a formaldehyde precursor at temperatures of from 20.degree. C. up to 80.degree. C.

Abstract: A process is provided for improving the stability of bisphenols under melt or distillation conditions by employing an aromatic anhydride such as phthalic anhydride as a stabilizing agent. A reduction is effected in the rate of formation of phenol and other cracking products which are decomposition by-products of the bisphenol.