Abstract: New .alpha.-phenoxy-alkanols represented by the general formula ##STR1## in which R.sup.1 and R.sub.2, which may be identical or different, represent a hydrogen atom or the CH.sub.3 radical, and their stereoisomers of R,S conformation when they contain at least one asymmetric carbon.

Abstract: Preparation process for 3,4-disubstituted dinitroanilines of formula ##STR1## in which, R.sub.1 and R.sub.2, which are identical to or different from one another, represent a hydrogen atom, a C.sub.1 to C.sub.6 saturated, linear or branched alkyl radical, a C.sub.2 to C.sub.6 linear or branched alkylene radical, a cyclopropyl radical or a chloroethyl radical,R.sub.3 and R.sub.4, which are identical to or different from one another are chosen from the group containing the chlorine atom, the amino group, the C.sub.1 to C.sub.3 lower alkyl radicals and the trifluoromethyl radical,comprising successively a dinitration stage of a 3,4-disubstituted phenol, an alkylation stage of the dinitrated derivative thus obtained and an amination stage of the 3,4-disubstituted 2,6-dinitro-alkoxybenzene thus obtained.

Abstract: Preparation process for 4-substituted dinitroanilines of formula ##STR1## in which R.sub.1 is chosen from the group containing the tert-butyl, sulphonamido, trifluoromethyl, methyl-sulphonyl and isopropyl radicals,R.sub.2 and R.sub.3, which are identical to or different from one another, represent a hydrogen atom, a linear or branched alkyl, cycloalkyl, haloalkyl or alkenyl radical containing less than 6 carbon atoms, characterized in that that it comprises successively:a dinitration stage of the 4-substituted phenol corresponding to the sought 4-substituted dinitro-aniline, this dinitration stage being carried out in a reaction medium containing a slight excess of nitrating agent, a sufficient quantity of protons and a catalyst chosen from the group containing the soluble salts of the transition metals of columns IV to XII of the Periodic Table, preferably the soluble salts of Fe.sub.III, Fe.sub.II, Zn.sub.II and Cu.sub.

Abstract: The invention relates to a composition, which is simultaneously anticlumping and water-repellent, for salts, simple and complex fertilizers. This composition contains:on the one hand, an anticlumping product chosen from fatty amines, amine salts of phosphoric esters, amine salts of alkylarylsulphonic acids and mixtures thereof, andon the other hand, an anticlumping substance capable of imparting water-repellent properties and consisting of the product of the reaction of an alcohol or an amine with a carboxylic acid or anhydride bearing a hydrocarbon group having from 20 to 500 carbon atoms,as well as a formulation agent.

Abstract: Composition adapted to improve the rheological properties of cement-based products and more especially to increase the duration of the workability of concrete ready to use, characterized in that it comprises, in the form of a ternary mixturea superplasticizing or water-reducing agent having a dispersing effect,a stabilizing agent capable of forming a chelate with the calcium ions of the cement-based product, anda polycarboxylic polymer dispersing agent.

Abstract: Anticlumping composition intended for fertilizers comprising an aqueous solution of at least one surfactive agent and at least one high molecular weight polymer soluble in the said aqueous solution, wherein the surfactive agent is consisting of a phosphoric ester acid salt.

Abstract: Internal additive for the preparation of prills of ammonium nitrate comprising, in aqueous solution, a mixture of at least one salt of sulphonic acid and of at least one salt of polycarboxylic acid.

Abstract: Process for inhibiting the corrosive characteristics of a nitrogenous fertilizing solution comprising incorporating in said nitrogenous fertilizing solution at the moment of its constitution, about 50 to about 150 ppm of at least one of the linear esters of acid phosphates having the formulae; ##STR1## wherein R1 and R2 which are identical or different from one another, are selected from the group consisting of the n-heptyl, n-octyl, n-nonyl and n-decyl radicals.

Abstract: Anti-clumping product for salts, simple and complex fertilizers as well as for nitrogenous derivatives, especially on the basis of ammonium nitrate, which might in particular be used in connection with explosives, consisting of a metallic salt of an acid phosphate ester having the general formulas I and II: ##STR1## wherein: R.sub.1 designates an alkylene group having from 2 to 4 carbon atoms,R.sub.1, R.sub.2 and R.sub.3 designate each an alkyl group having from 2 to 24 carbon atoms, or an alkylaryl group whose alkyl part has from 1 to 18 carbon atoms, andn.sub.1, n.sub.2 and n.sub.3 designate an integer from 0 to 15,the cation which is part of the constitution of the above-said metallic salt being a divalent or trivalent cation, especially one of those of the group comprising magnesium, calcium, aluminum, zinc and manganese, it being also possible to select the said cation from the group consisting of sodium and lithium.

Abstract: An anti-clumping product for salts and for simple and complex fertilizers is essentially constituted by a combination of one or several amine salts of alkylary-1-sulfonic acids and of one or several amine salts of acid phosphate esters, in the presence possibly of an excess of amine.