Abstract: Polyvalent cations (e.g., U(IV), Fe(III) can be extracted from aqueous solution using novel organophosphorus compounds of the formulas: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are selected from alkyl, alkoxyl, alkylaryl and alkylaryloxyl groups having from 1 to 18 carbon atoms or hydroxyl;R.sup.3 is independently selected from substituted and unsubstituted alkyl and alkylaryl groups having 1 to about 18 carbon atoms or hydrogen;R.sup.4 is independently selected from alkyl and alkylaryl groups having 1 to about 18 carbon atoms; provided that the sum of the carbon atoms of the R.sup.1, R.sup.2, R.sup.3 and R.sup.4 groups is at least 15; andR.sup.5 is independently selected from substituted and unsubstituted alkyl and alkylaryl groups having 1 to about 18 carbon atoms or a polymeric group; provided that the sum of the carbon atoms of the R.sup.1, R.sup.2 and R.sup.5 groups is at least 16.

Abstract: Phenoxy phthalic anhydrides are prepared by the reaction of a fluorophthalic anhydride with a phenol compound in the presence of potassium fluoride and a polar, aprotic solvent.

Abstract: Phenolic molding compositions, particularly useful as sheet molding compounds comprise:(a) a resole phenolic resin,(b) a curing agent selected from the group consisting of alkaline earth metal oxides or hydroxides and silanes,(c) a filler,(d) a lactone such as butyrolactone, and(e) a fiber reinforcement.

Abstract: Fluoro-substituted carbocyclic compounds are prepared by(A) reacting hydrogen fluoride with a chloro-cyclohexenyl compound of the formula ##STR1## where R.sub.1 and R.sub.2 are independently selected from the group consisting of --H, --CH.sub.2 OH, --COF, --COCl, --CF.sub.3, --CN, ##STR2## and --CH.sub.2 R, where R is --H or alkyl of 1-4 carbon atoms, to form a gem-dihalocyclohexane compound of the formula ##STR3## where X is chlorine and R.sub.1 and R.sub.

Abstract: A process for the electrophilic ring fluorination of aromatic compounds which comprises reacting a fluorinating agent from the group consisting of CF.sub.3 OF and CF.sub.2 (OF).sub.2 with an aromatic compound of the formula ##STR1## where X is selected from the group consisting of ##STR2## and ##STR3## and Y is selected from the group consisting of --H, --CF.sub.3, --CN, --NO.sub.2, --Cl, and CH.sub.3.

Abstract: This invention relates to a dust suppressing device for use in the discharge of granular bulk materials, such as crushed rock, ore, and the like, for example, during the loading of such material onto a transport vehicle such as a ship. The device comprises(a) a central hopper;(b) a first outer tubular member, coaxially disposed and concentrically spaced outward with respect to the hopper; and(c) a second tubular member coaxially disposed and concentrically spaced outward with respect to the hopper and the first tubular member. The spacing between the central hopper and the first tubular member and the spacing between the first and second tubular members are such as to provide alternate path for the discharge of granular material when the flow rate of the granular material into the hopper exceeds the capacity of the hopper.

Abstract: 4,4-dihalohexahydrophthalic anhydrides of the formula ##STR1## where Y is chlorine or fluorine, are prepared by the reaction of hydrogen fluoride with 4-chlorotetrahydrophthalic anhydride.The 4,4-dihalohexahydrophthalic anhydrides of this invention can be dehydrohalogenated by reaction with basic alumina to prepare a mixture of 4-fluorotetrahydrophthalic anhydride isomers of the formula ##STR2## The 4-fluorotetrahydrophthalic anhydrides can then be dehydrogenated by reaction with a dehydrogenation catalyst to prepare 4-fluorophthalic anhydride.

Abstract: Flame retardant polyesterether elastomer compositions having superior high temperature processability and heat aging properties, resistance to blooming, improved flame retardance, and reduced smoke generation and reduced dripping during burning, comprise(a) a copolyesterether elastomer prepared from dimethyl terephthalate, polyether glycol and 1,4-butanediol;(b) a chlorinated bisimide of the formula: ##STR1## (c) antimony trioxide; and (d) polytetrafluoroethylene.

Abstract: A process for the preparation of 3-chloro-4-fluoro-5-nitrobenzotrifluoride and 3,4-difluoro-5-nitrobenzotrifluoride by reaction of 3,4-di-chloro-5-nitrobenzotrifluoride and 4-chloro-3,5-dinitrobenzotrifluoride, respectively, with an alkali metal fluoride.

Abstract: Oxy-diphthalic anhydrides are prepared by reacting a halophthalic anhydride with water and an alkali metal compound such as KF, CsF or K.sub.2 CO.sub.3 in the presence of a polar, aprotic solvent.

Abstract: Trifluoroanisoles of the formula ##STR1## where m is 1 or 2 and n is 0 to 3, are prepared by reacting hydrogen fluoride with trichloroanisoles of the formula ##STR2## in the vapor phase, in the presence of a fluorinated alumina catalyst whereinX is halogen other than fluorine;R is aryl, preferably 1 to 14 carbon atoms, halogen substituted aryl, halogen, alkyl of 1 to 6 carbon atoms, or alkoxy of 1 to 6 carbon atoms;m is 1 or 2;n is 0 to 3;w is 0 to 2;p is 1 to 3;q is 0 to 2;w+p+q is 3;w' is 1 to 3 and is greater than w;p' is 0 to 2 and is less than p;q' is 0 to 2 and is equal to q; andw'+p'+q' is 3.

Abstract: Diphenyl ethers of the formula ##STR1## wherein m is 1-3, n is 1 or 2, R is hydrogen, carboxy, carboxylate salt or ester, formyl oxime, cyano, alkyl, alkoxy, chloro, bromo, or N, N-dialkyl amino, are prepared by reacting a chloro-fluoro-benzotrifluoride of the formula ##STR2## wherein m and n are as defined above with a nitro-phenoxide of the formula ##STR3## where R is defined above, and M is a cation of an alkali metal or an alkaline earth metal.

Abstract: Smoke retardant compositions comprise a polyvinyl halide resin and a smoke retardant proportion of tin oxalate or calcium oxalate. Small amounts of zinc oxide, magnesium oxide or titanium oxide can also be included to provide cost effective smoke and fire retardant compositions. In flexible compositions a fire retardant additive such as aluminum trihydrate is used.

Abstract: A process for the preparation of chloro-difluorobenzene compounds of the formula ##STR1## where R is CN or CF.sub.3, comprises the steps of (A) reacting an alkali metal fluoride with 4-chloro-3,5-dinitrobenzonitrile or 4-chloro-3,5-dinitrobenzotrifluoride to form the corresponding 4-fluoro-3,5-dinitrobenzonitrile or 4-fluoro-3,5-dinitrobenzotrifluoride product.(B) chlorodenitrating the 4-fluoro product of step (A) to form the corresponding 3,5-dichloro-4-fluorobenzonitrile or 3,5-dichloro-4-fluorobenzotrifluoride compound.(C) reacting the 3,5-dichloro-4-fluorobenzonitrile or 3,5-dichloro-4-fluorobenzotrifluoride compound prepared in step (B) with an alkali metal fluoride to form the corresponding 3-chloro-4,5-difluorobenzonitrile or 3-chloro-4,5-difluorobenzotrifluoride compound.

Abstract: Chloro-aromatic compounds of the formula ##STR1## wherein R is CF.sub.3, OCF.sub.3, OC.sub.2 F.sub.5, CN, NCO, or COCl, m is 0, 1 or 2; n is 0, 1 or 2; q is 1 or 2; q+m+n is less than 6; and when q is 1, m is 2; are prepared by the vapor phase chloro-denitration reaction of a chlorinating agent with a nitro-aromatic compound of the formula ##STR2## where R, m, n and q are as defined above.

Abstract: Trifluoromethylbenzoyl chlorides or bromides are prepared by contacting trichloromethylbenzoyl chlorides or tribromomethylbenzoyl bromides with trifluoromethylbenzoyl fluorides in the presence of a halogen transfer catalyst.

Abstract: A process for the preparation of fluoroanthranilic acid compounds comprises(A) reacting ammonium fluorophthalamate or a fluorophthalamic acid of the formula ##STR1## where n is 1 or 2, with an alkali or alkaline earth metal hypochlorite to form the corresponding fluoroanthranilic acid of the formula ##STR2## where n is as previously defined.

Abstract: This invention relates to a process for the preparation of 4-fluorophthalic anhydride which comprises contacting a dihalohexahydrophthalic anhydride of the formula ##STR1## where X is Cl or F, with a dehydrogenation catalyst. Advantageously, the process of the invention may be carried out in the presence of a hydrogen acceptor. The preferred hydrogen acceptor is a halocarbon hydrogen acceptor of the formula ##STR2## where Y is Cl, Br, or I; Z is Cl, Br or I; m is 0 to 4, n is 0 to 3, p is 0 to 3, and m+n is at least 1; with the proviso that when m is 0, p is at least 1.

Abstract: Aroyl chlorides are stabilized against discoloration by addition thereto of about 0.00001 to about 5.0% by weight of methanamide (formamide).

Abstract: Aroyl chloride compositions are decolorized by contact with a solid, substantially insoluble, polyamide.