Abstract: Crystalline microporous rare earth silicates are provided. These microporous compositions have a three dimensional framework structure of at least silicon tetrahedral oxide units and at least one M oxide unit. M is a rare earth element. Optionally, the microporous compositions may contain as part of the framework an M′ element having a valence of +2, +3, +4 or +5 such as zinc (+2), iron (+3), zirconium (+4) and tantalum (+5). The composition is represented by the empirical formula: An(M1−zM′z)wSi1−yGeyOx where A is a cation such as sodium and “n”, “z”, “w”, “y” and “x” are the mole fractions of the various elements.

Abstract: A process is presented for the continuous oxidation of alditols to aldoses accompanied by under 20 weight percent of aldonic and/or alduronic acids relative to the aldoses that are formed. The use of zerovalent platinum on a support such as theta-alumina and at superatmospheric oxygen partial pressures up to about 1,000 pounds per square inch is partially successful in affording good conversion of alditols with relatively low aldonic and/or alduronic acid formation.

Abstract: APO-BMI is a chain-extended with certain diamines to provide thermosetting resins retaining the improved properties of APO-BMI resins, but having increased toughness in the cured resins.

Abstract: The yellow pigments which result from reaction of the Monascus pigments monascorubrin and rubropunctatin with amines followed by reduction of the ring carbonyl moiety to an hydroxyl group have excellent properties for their use as food colorants. Yellow pigments made from amino acid esters, dipeptide esters, and amines of sugar alcohols have particular promise as desirable food colorants which are effective at levels which impart no objectionable taste to foods.

Abstract: The orange, water-insoluble pigments monascorubrin and rubropunctatin elaborated by Monascus species can be converted to high purity red, water-soluble pigments by reaction with stoichiometric quantities of organic materials bearing a primary amine functionality. These pigments are suitable as colorants for a broad variety of edible formulations, especially those intended for human consumption, and often serve as suitable replacements for FD&C Red No. 2 and Red No. 4.