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For the production of triphenylaluminum in high yields, (C.sub.6 H.sub.5).sub.n AlCl.sub.3.sub.- n is reacted with AlR.sub.3 wherein n is a member above O and less than 3 and R represents lower alkyl.
This invention relates to the production of alkoxides by passing an electric current through a liquid medium comprising a solution of a monohydric alcohol and as a supporting electrolyte an ammonium or quaternary ammonium salt using an anode and passing the electric current through the medium until the alkoxides are present in the liquid medium.
Production of chlorine- and/or cyano-substituted hydroxybenzonitriles or their alkali or alkaline earth metal salts by reacting chlorobenzonitriles with alkali or alkaline earth metal nitrites and optionally converting the salts to the hydroxy compound by acidification. The products are intermediates in the manufacture of dyes and plant protection agents.
A sulfolane compound is prepared by reacting sulfur dioxide with an unsaturated organic compound containing two or more ethylenic linkages, in the absence of a solvent, to produce a molten sulfolene compound, introducing the molten sulfolene compound into a suitable hydrogenation solvent, pulling a vacuum on the resulting solution to remove a portion of the sulfur dioxide contained therein, adding hydrogen peroxide to the solution to convert any remaining sulfur dioxide to sulfur trioxide, addin...
A process for making pure alkali metal or ammonium phosphates wherein wet process phosphoric acid is treated with iron powder, the acid-iron mixture neutralized with a basic material to a pH of 3.5-9. The resulting slurry is filtered and a pure phosphate product recovered from the filtrate.
A batt of a cross-lapped fibrous web of continuous filaments, the batt having an internal wad of said web in randomly crumpled condition.
Thiocyanogen is generated by introducing a halogen into an aqueous solution of a water-soluble thiocyanate salt having a water-insoluble liquid organic thiocyanogen-solvent admixed therewith, thereby extracting the thiocyanogen into the organic solvent phase as it is formed.
Molded effervescent triturate tablets or tablets formed by molding or compressing which have a matrix free of water insoluble polymers are contacted with a volatile organic solvent in which one or more materials comprising the tablet are at least partially soluble. The volatile solvent is removed causing the organic solvent solubilized material to be redeposited in situ. This causes an increase in the hardness and a decrease in the friability characteristics of the tablet. The tablet matrix can ...
A route for the production of a black pigment comprises making an aqueous solution of iron and manganese salts and reacting it with a base in the presence of a protective colloid to produce a granular precipitate. The colloid is preferably in the base but it may also be in the salt solution.
Caprolactam is made by reacting 1,1'-peroxydicyclohexylamine with alkali metal methoxide dissolved in methanol at a concentration of at least 4 gram moles/liter.
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