Abstract: An encapsulated flame retardant is made by a process including applying an organic silicon composition to a powder flame retardant. The organic silicon composition is an organofunctional-silane or a mixture of organofunctional silanes, an oligomeric organosiloxane or a mixture of oligomeric organosiloxanes, or a solvent-containing preparation based on monomeric organosilanes and/or on oligomeric organosiloxanes, or a preparation based on water-soluble organopolysiloxanes, or mixtures of any or all of these. These surface-modified flame retardants are used in particular in polymers and polymer compounds, for rendering naturally occurring materials flame retardant, and also for the intumescent coating of combustible materials.

Abstract: The invention relates to a lubricant which can be used as a mandrel lubricant with a content of 75 to 90 wt. % of graphite and contains 1 to 10 wt. % of a phosphate. Said lubricant can also contain 1 to 4 wt % alkali silicate, 1 to 10 wt. % bentonite, 0.5 to 1 wt. % silico-phosphate and common solid lubricants. Said lubricant is preferably used as an aqueous suspension with a solid content of 20 to 40 wt. %.

Abstract: The invention concerns a lubricant for the hot forming of metals with at least one alkali metal phosphate and possibly additionally at least one phosphate of a divalent metal, which has improved lubricating properties in comparison with known high-temperature lubricants and which at the same time does not attack the workpiece and tool or attacks same to a lesser degree than known lubricants as it contains at least one additives which forms a gas upon being heated.

Abstract: In the method described, one or more halogen-free phosphorus compounds are incorporated in the precondensed resins before the final resin-curing stage. During final curing, the phosphorus compounds are bound by covalent bonds into the resin structure and/or are trapped in the resin structure as such or in the form of aggregates or condensates.

Abstract: This invention relates to an intumescent composition of the two-component type, comprising:(A) an amino-formaldehyde resin; and(B) an ester of phosphoric acid in admixture with an additive selected from the group consisting of a water scavenger, a filler, a pigment, a surfactant and a mixture thereof.This composition is suitable for use as a fire protection agent, particularly for the coating or impregnation, respectively, of fiberglass mats.

Abstract: Described are mixed boric acid/phosphoric acid esters which may be obtained by subjecting at least one phosphorus compound capable of ester formation and at least one boron compound capable of ester formation simultaneously to an esterification reaction with at least one polyol and/or a derivative thereof capable of ester formation. Such esters may be prepared in an aqueous medium and find use in the flame-proofing treatment of a variety of materials, as acid catalysts for acid-curing synthetic materials, for controlling boron deficiencies in cultivated plants, and in many other fields of application.

Abstract: Described is a composition with integral intumescence properties, the composition being obtained by combining: a) one or more aminoformaldehyde resins and b) a mixture of mono- and di- esters of orthophosphoric acid with one or more polyols, the average hydroxy-group content of the polyols being at least 40% by weight, the molar ratio of mono-ester to di-ester not exceeding 12:1 and the phosphorus content of the mixture being at least 10% by weight.

Abstract: A process for the removal of cadmium ions by liquid-liquid extraction from wet process phosphoric acid, which had been obtained from crude phosphate ores by dissolution with sulfuric acid, uses salts of long chain alkyl amines or ammonium bases with the chlorocomplexes of polyvalent metal ions, which are dissolved in an inert organic solvent.

Abstract: Disclosed is a process for the precipitation and separation of cadmium sulphide from the raffinates derived from phosphoric acid purification by treating the cadmium containing streams of the raffinates with a H.sub.2 S containing solvent phase in a mixing-settling apparatus, by separating the raffinate phase from the cadmium sulphide containing solvent phase and by separating the precipitated cadmium sulphide from the solvent phase. By operating this process it is possible to remove cadmium in a simple manner from the raffinates since their inherent properties don't influence the precipitation and separation of cadmium sulphide.

Abstract: A process for producing soft cheese is disclosed wherein insoluble calcium phosphate having a CaO/P.sub.2 O.sub.5 ratio from 2.5:1 to 3.1:1 is added to conventional smelt salts in amounts of between 0.3 and 1.6 percent, based on raw cheese and fat. The calcium phosphate has a beta-tricalcium phosphate content of from 50 to 100 percent and, preferably, a specific surface of from 20 to 80 m.sup.2 /g and an average grain size of from 1 to 20/.mu..

Abstract: A process for the purification of phosphoric acid containing cationic impurities is disclosed wherein there is added to a crude phosphoric acid an organic solvent miscible in all proportions with water and phosphoric acid and thereafter contacting the resulting solution with an inorganic material in aqueous or solid form to effect the preferential passage of the impurities of the crude phosphoric acid/organic solvent solution into an aqueous inorganic phase with phosphoric acid remaining in the organic solvent phase from which purified phosphoric acid is recovered by distillation of the organic solvent.