Henkel & Cie G.m.b.h.

Henkel Kommanditgesellschaft Auf Aktien

Deutsche Gold- Und Silber-scheideanstalt Vormals Roessler

Henkel Kommanditgesellschaft Auf Aktien (henkel Kgaa)

Henkel Kgaa

Deutsche Gold- Und Silber-scheideanstalt

Werner Stein

Horst Baumann

Wolfgang Rupilius

Karlheinz Koch

Wilfried Umbach

Helmut Hartmann

Karl Heinz Schmid

Ludwig Schieferstein

Peter Krings

Peter Christophliemk

Joachim Schindler

Konrad Engelskirchen

Rolf Schmid

Rainer Osberghaus

Hans J Rommerskirchen

Wolfgang Giede

Michael Bahn

Herbert Lepper

Gerhard Dieckelmann

Gerhard Kolaczinski

Jurgen Plapper

Richard Schuh

Helmut Singer

This invention is directed to the preparation of .alpha.-sulfofatty acid esters. More particularly, this invention is directed to a process for the simplified preparation of light-colored, wash-active esters of .alpha.-sulfofatty acids with monovalent C.sub.1 to C.sub.8 alcohols or their salts from fats and oils of vegetable and/or animal origin comprising re-esterification with the monovalent alcohols or saponification and esterification with the monovalent alcohols, separation of the fatty acid ester formed, hydrogenation of the fatty acid ester, sulfonation, and bleaching, wherein a fatty acid ester fraction from which accompanying fatty acid glycerides have been removed to the extent of about 1 percent by weight or less, based upon the weight of the material to be sulfonated, is introduced into the sulfonation stage.

Preparation of light-colored, wash active .alpha.-sulfofatty acid

In the aerobic culture of microorganisms of the Xanthomonas genus in fermentation media, the use of water-in-oil emulsions in the media minimizes viscosity problems and enhances yields of Xanthomonas biopolymers. Preferably, the emulsion is formed with a surfactant and the microorganism is Xanthomonas campestris.

Process for producing Xanthomonas biopolymers

Mixtures of vicinal aminoalkanols of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl having from 1 to 21 carbon atoms and the sum of the carbon atoms in R.sub.1 +R.sub.2 is from 6 to 22, A is a member selected from the group consisting of alkylene having from 2 to 6 carbon atoms and methylalkylene having from 3 to 7 carbon atoms, y is an integer from 1 to 3, R.sub.4 and R.sub.5 are members selected from the group consisting of hydrogen, alkyl having from 1 to 4 carbon atoms and hydroxyalkyl having from 2 to 4 carbon atoms, and their salts with organic carboxylic acids, said mixtures having at least two different adjacent chain lengths of ##STR2## in the range of from 8 to 24 carbon atoms with the proviso that the vicinal substituents are distributed statistically; as well as their process of preparation and their application as corrosion inhibitors.

Mixtures of vicinal aminoalkanols, process of preparation, and their

A process for the preparation of fine droplet-reacted sodium aluminosilicates with the smallest particle sizes, containing less than 0.1% by weight of granules exceeding 25 .mu.m in size, said aluminosilicates being insoluble in water and containing some bound water, of the general formula

Process for the preparation of fine droplet-reacted aluminosilicates of

A continuous process for the bleaching of acid .alpha.-sulfo-fatty acid esters of predominantly C.sub.16-24 fatty acids comprising continuously adding the hydrogen peroxide bleach in aqueous solution as well as from 2% to 50% by weight, based on the sulfonated esters, of a C.sub.6-18 alkylbenzene sulfonic acid, to said raw, acid .alpha.-sulfo-fatty acid esters at a temperature of 40.degree. to 65.degree. C, continuously passing said mixture through a confined zone of dimensions sufficient to give a proper bleach retention time and continuously recovering bleached .alpha.-sulfo-fatty acid esters.

Continuous process for bleaching acid alpha-sulfo-fatty acid esters

Corrodible iron-containing metals (including steel) possess decreased tendency to corrode when contacted with aqueous media (including dilute strong mineral acids) when they carry a surface coating of mixtures of aminoalkanols of the formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent a C.sub.1-21 alkyl; and wherein the sum of the carbon atoms in R.sub.1 and R.sub.2 is 6 to 22. The vicinal ##STR2## substituents are non-terminal and are preferably uniformly distributed along the chain. The aminoalkanols are useful both in free base and in salt form.

Corrodible iron-containing surfaces carrying corrosion-inhibiting coating

A process for the extraction of heavy metal ions capable of forming complexes with amines from dilute aqueous heavy metal salt solutions consisting essentially of the steps of

Process for the extraction of heavy metals from diluted aqueous heavy

The invention relates to an improvement of the known continuous process for the separation of mixtures of fatty alcohols of different melting points, in which the starting mixture by treating with an aqueous wetting agent solution is converted to a dispersion of liquid fatty substances and solid fatty substance particles, the formed dispersion is separated into two phases of different specific gravities, the lighter phase consists substantially of the liquid fatty fraction and the heavier phase of a dispersion of the solid fatty particles in the aqueous wetting agent solution. After separation of this suspension the wetting agent solution is returned to the process. The improvement consists in withdrawing a part of the recycling wetting agent solution from said dispersion of fatty particles in the aqueous wetting agent solution by separation of some or all the aqueous solution from the solid fatty particles, the solid fatty particles with the remaining aqueous phase and adhering wetting agent are melted in the presence of an aqueous phase and the molten fatty fraction containing little wetting agent, is separated from the aqueous phase enriched with wetting agent which is recycled and the amount of wetting agent solution withdrawn is replaced with fresh wetting agent solution.

Continuous process for the separation of mixtures of fatty substances of

Process and agent for fatting or lubrication of leather and furs based on the salts of sulfonated chlorinated products of higher fatty acids or of esters of higher fatty acids, said fatty acids having from 8 to 24 carbon atoms, especially natural fats and oils or tallow fatty acid methyl ester, having a chlorine content of 20% to 45% by weight and essentially free of olefinic double bonds and having an SO.sub.3 content of from 40 to 150 mol percent based on the chlorinated product, which agent and the leather and furs so treated are extraordinarily resistant to the effect of light, to oxidation and to acids.

Sulfonated lubricating agents for leather and furs and process

This invention relates to an improvement in the process of alkoxylation of compounds containing alcoholic hydroxyl groups by reacting compounds containing hydroxyl groups with alkylene oxides in the presence of alkoxylation catalysts. The said improvement involves the use of a tertiary oxonium salt with a substantially non-polarizable halogeno-complex anion as the said alkoxylation catalyst. Use of such catalysts gives lower amounts of unreacted alcohols in the products, particularly when secondary alkanols of 8 to 24 carbon atoms are employed.

Process for the alkoxylation of compounds containing alcoholic hydroxyl

A method for separating mixtures of fatty substances into components with different melting points in which a fatty substance suspension separated from a liquid fat portion is transformed by heating to temperatures between the melting point of the solid portions and about 85.degree. C by means of the usual separating devices at ordinary or increased gravity into a three-phase system which consists of molten solid particles as the lightest phase, of an intermediate aqueous phase of medium specific gravity rich in wetting agents, and of a heavy aqueous phase which is low in wetting agents, and the solid portions are then separated.

Process for separating fatty mixtures

The invention relates to an improvement of the known continuous process for the separation of mixtures of fatty substances of different melting points, in which the starting mixture by treating with an aqueous wetting agent solution is converted to a dispersion of liquid fatty substances and solid fatty substance particles, the formed dispersion is separated into two phases of different specific gravities, the lighter phase consists substantially of the liquid fatty fraction and the heavier phase of a dispersion of the solid fatty particles in the aqueous wetting agent solution. After separation of this suspension the wetting agent solution is returned to the process. The improvement consists in withdrawing a part of the recycling wetting agent solution from said dispersion of fatty particles in the aqueous wetting agent solution by separation of some or all the aqueous solution from the solid fatty particles, the solid fatty particles containing adhering aqueous phase and wetting agent are melted in the presence of an aqueous phase and the molten fatty fraction containing little wetting agent, is separated from the aqueous phase enriched with wetting agent which is recycled and the amount of wetting agent solution withdrawn is replaced with fresh wetting agent solution.

A method for the purification of mixtures of fatty acids or fatty acid esters containing polyunsaturated components by heating the mixture in the presence of an organic macroporous, acid ion exchange resin having a specific surface area of at least 35 m.sup.2 /gm and devoid of gel characteristics, and then separating the purified mixture by distillation. The method is especially useful for the production of oleic acid which is relatively free of linoleic acid.

Method for purification of fatty acid mixtures

Secondary alcohol ether ethoxylates having the formula ##EQU1## wherein R.sub.1 is an aliphatic hydrocarbon radical with 4 to 18 carbon atoms, R.sub.2 is an aliphatic hydrocarbon radical with 1 to 10 carbon atoms, x and y are integers 0 and 1, z is an average value from 3 to 18, the sum of the carbon atoms of R.sub.1 and R.sub.2 is from 6 to 22 and the sum of x + y is 1, as well as methods for their production and washing agent compositions containing them.

Secondary alcohol ether ethoxylates

A process for the manufacture of higher vicinal diols or polyols by hydrolysis of the corresponding mono- or poly-epoxides, characterized in that the hydrolysis is carried out using aqueous solutions of salts of aliphatic mono- and/or polycarboxylic acids and temperatures above 100.degree.C, preferably 200.degree. to 350.degree.C, and if necessary, in the presence of dissolving intermediaries.

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Erkrath-Unterbach, Germany

Werner Stein