Hoechst Aktiengesellschaft

Horst-Dieter Wasel-Nielen

Renate Adrian

Joachim Kandler

Alexander Maurer

Gero Heymer

Karl Merkenich

Klaus Hestermann

Werner Gohla

Lothar Westermann

Gunter Sorbe

Klaus Sommer

Peter Wirtz

Hannsjorg Ulrich

Raban Von Schenck

Theodor Auel

Herbert Panter

Hans-Adolf Rohlfs

Alexander Mauer

G/u/ Nter Sorbe

The disclosure provides a process for making mixed granulates from water-soluble condensed phosphates and at least one builder salt by subjecting the components making the granulate to granulation in the presence of water. To this end, the disclosure provides:

Process for making mixed granulates from condensed phosphates and

The invention relates to a composition suitable for use in cleaning panes of glass, consisting of a pelleted blend of surfactants, the composition containing:

Method for cleaning a glass surface with solutions of dissolved pelleted

The invention provides a granulate comprising particles having sizes substantially within the range 0.15 to 1.25 mm, the granulate consisting of:

Granulate consisting of hydrated sodium tripolyphosphate and

The disclosure relates to an abrasion-resistant storable cogranulate consisting of particles with a size of about 0.2 to 2 mm and having an apparent density of 800 to 1100 g/liter, the cogranulate containing

Cogranulate of alkali metal silicate and alkali metal polyphosphate, and

The invention relates to a process for converting water-soluble, condensed phosphates of the following general formula (I)

Process for making granulated condensed phosphates

The disclosure relates to a granulate with a particle size essentially of about 0.2 to 2 mm consisting of

Granulate of alkali metal aluminum silicate and pentasodium

The invention provides cleaning and detergent compositions containing about:

Detergent and cleaning compositions containing polymeric phosphate

The invention relates to a process for making phosphorus-containing anticorrosive pigments having a size of at most 20 microns by reacting one or more compounds of magnesium, calcium, strontium, barium, zinc, aluminum, iron, chromium or manganese with an oxygen acid of phosphorus or its alkali metal or ammonium salts at temperatures within the range 10.degree. to 100.degree. C. More particularly pigments consisting to an extent of at least 90% of particles with a size between 0.05 and 8 microns are produced by introducing an aqueous suspension or solution of the reactants into a dispersing means rotating at a speed of 3000 to 10,000 rpm, reacting the reactants by intimately mixing them, and separating and drying precipitated pigment.

Production of anticorrosive pigments containing phosphorus

The invention provides cleaning and detergent compositions which contain about 0.2 to 5 weight % of at least one compound of the general formula (I) ##STR1## in which R stands for a hydrogen atom or a methyl group and R.sub.1 stands for a hydrogen atom or an alkali metal or NH.sub.4 -ion.

Detergent and cleaning compositions

The invention provides a composition suitable for use in cleaning panes of glass consisting of a substantially homogeneous surfactant and binder containing blend, in the form of a hardened moulding, the blend containing:

Composition suitable for use in cleaning panes of glass

Corrosion and deposition of boiler scale in water-conveying systems are inhibited. To this end the water is admixed with at least one carboxy-alkane compound of phosphorus of the general formula: ##STR1## in which each of the substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 stands for hydrogen or an alkyl group having from 1 to 4 carbon atoms, R.sup.5 stands for hydrogen, an OH-group or an alkyl group having from 1 to 3 carbon atoms, and n stands for 0 or 1, or with at least one water-soluble salt thereof.

Process for inhibiting the corrosions and deposition of boiler scale in

The invention provides condensed aluminum phosphates which contain P.sub.2 O.sub.5 and Al.sub.2 O.sub.3 in a molar ratio equal to or greater than 1.5:1, are X-ray amorphous and have an apparent density between 50 and 200 grams/liter. They are made by spray-drying an aluminum orthophosphate solution or suspension containing P.sub.2 O.sub.5 and Al.sub.2 O.sub.3 in the molar ratio desired in the final product, in a spray tower at temperatures higher thana 250.degree.C to effect direct transformation into condensed aluminum phosphates.

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Hurth, Germany

Horst-Dieter Wasel-Nielen