Abstract: In the process of removing oxides of sulfur from gases, comprising the step of contacting, at 2.degree.-100.degree. C., components comprising water, calcium ions, and sulfite ions or bisulfite ions to form a sludge, the improvement comprising contacting said components in the presence of dissolved Graham's salt or a dissolved polymer of the formula M.sub.x P.sub.n O.sub.(3n+1) to form a sludge having improved properties, wherein M is a cation, n is a positive integer greater than 1, x is (n+2)/y, and y is the valence of M. Resulting sludge and new composition of matter, comprising lime or limestone mixed with Graham's salt or M.sub.x P.sub.n O.sub.(3n+1), which is useful in performing the process, are also disclosed.

Abstract: Sufficient anionic polyacrylamide having molecular weight of at least 2,800,000 is contacted with alkali metal aluminate liquor containing ferrous iron until a substantial proportion of the ferrous iron is precipitated, and said precipitate and liquor are separated. The process is particularly useful as an improvement in the Bayer process for preparing alumina from bauxite.

Abstract: Polyethylene textile fibers dyed with the dyestuff resulting from coupling equimolar amounts of diazotized ##STR1## and the coupling components obtained by reacting 3-amino-4-methoxyacetanilide or 3-amino-4-ethoxyacetanilide with diethyl sulfate, wherein X is Cl or Br are disclosed. Said fibers are a desirable greenish blue shade, with good fastness properties, and a very green flare under incandescent light.