Henkel Kommanditgesellschaft Auf Aktien

Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler

Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa)

Degussa Aktiengesellschaft (Henkel Kgaa)

Willi Wust

Franz-Josef Carduck

Peter Christophliemk

Wilfried Rahse

Norbert Kuhne

Hasso Leischner

Werner Schneider

Hans Pabel

Dietrich Klotzer

In a process for the conversion of meta-kaolin into an aqueous alkaline suspension of low-grit, water-containing zeolitic sodium aluminosilicate of the smallest particle size having the molar composition:

Process for the continuous conversion of meta-kaolin into very

A method for the production of micropowders from cellulose ethers or cellulose comprising

Method for the production of micropowders from cellulose ethers or

In a process for the production of an aqueous alkaline suspension of low-grit, crystallized zeolitic sodium aluminosilicate of the smallest particle size having the composition

Process for the continuous crystallization of zeolitic sodium

This invention is directed to the preparation of alkali cellulose. More particularly, this invention is directed to a process for the preparation of alkali cellulose having a low water content, wherein finely divided cellulose suspended in a typical inert organic solvent is presteeped and the cellulose suspension is contacted with an alkali metal hydroxide/alcohol mixture and at least one aqueous alkalization solution of different concentration.

Preparation of alkali cellulose having a low water content

This invention is directed to a method for the continuous production of alkyl cellulose by reacting alkali cellulose with alkylating agents in the presence of inert liquids, wherein:

Preparation of alkyl cellulose

This invention relates to an improved process for preparing cellulose derivatives by alkalizing cellulose to form alkali cellulose, alkylating the alkali cellulose to form alkylated alkali cellulose, and recovering the alkylated alkali cellulose. According to the process of the invention, finely-divided, preferably powdered, cellulose is reacted with an aqueous-alcoholic alkali metal hydroxide solution at a temperature of from about 20.degree. to 120.degree. C., to form alkali cellulose, oxygen is removed, and the water content is reduced to from about 2.5 to 6.0 moles per anhydroglucose unit, prior to alkylization.

Preparation of cellulose derivatives using highly reactive alkali

A process for the continuous production of an aqueous, alkaline suspension of x-ray amorphous sodium aluminosilicate having a small particle size of at least 99% by volume of a particle size of less than 50.mu., suitable for conversion into zeolite sodium aluminosilicate of the smallest particle sizes, by mixing an aqueous sodium aluminate solution with an aqueous sodium silicate solution in the presence of excess sodium hydroxide solution at a temperature in the range of from 20.degree. to 103.degree. C., where the solutions being mixed have a mathematical total molar ratio of:

Continuous process for the production of amorphous sodium

A process for the continuous production of an aqueous, alkaline suspension of x-ray amorphous sodium aluminosilicate having a small particle size of at least 99% by volume of a particle size of less than 50.mu., suitable for conversion into zeolite sodium aluminosilicate of the smallest particle sizes, by mixing an aqueous sodium aluminate solution with an aqueous sodium slicate solution in the presence of excess sodium hydroxide solution at a temperature in the range of from 20.degree. to 103.degree. C., where the solutions being mixed have a mathematical total molar ratio of: 1.5 to 9 Na.sub.2 O:1 Al.sub.2 O.sub.3 :1 to 7 SiO.sub.2 :40 to 400 H.sub.2 O consisting essentially of the steps of continuously passing one of said two aqueous solutions into the first zone of a progressively, separately zoned mixing area, continuously splitting the other aqueous solution into at least three partial streams, continuously passing the first of said partial streams into said first zone, continuously passing the mixed contents of said first zone into the second zone of a progressively, separately zoned mixing area, continuously passing the remainder of said partial streams separately into downstream zones of said progressively, separately zoned mixing area, where said mean holding time of the reaction mixture in each of said separately zoned mixing areas is at least 5 seconds and sufficient to effect substantial mixing of said contents.

Continuous process for the production of amorphouse sodium

A shaped washing agent based on colored soaps and/or synthetic detergents comprising a plurality of individual colored particles of soap and/or synthetic detergent having a size range of 1 to 20 millimeters, so distributed that they adjoin one another with sharply defined boundries, said boundries being substantially free of occluded gas, to give at least a mosaic-like appearance to at least part of the surface of said shaped washing agent; and the process of producing said shaped washing agent by compressing the individual particles in the substantial absence of gas between said particles.

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Ratingen-Hosel, Germany

Willi Wust