Inventor

STROEFER ECKHARD

DE90 patents

⚠️ This page may combine multiple inventors who share the name “STROEFER ECKHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

STROEFER ECKHARD

BASF AG

Separation of a substance mixture consisting of hydrogen chloride and phosgene

Method for the production of methylenedi(phenylamine and methylenedi(phenyl isocyanate)

Method for producing mixtures consisting of diphenylmethane diisocyanates and polyphenylene-polymethylene-polyisocyanates containing a reduced amount of chlorinated secondary products and with a reduced iodine color index

Production of isocyanates in the gaseous phase

Reaction of a solution comprising a mixture

Method for producing amines

Process for preparing methylenedianiline and methylenebis (phenylisocyanate)

Integrated process for preparing isocyanates

Process for preparing methylenedianiline and methylenebis(phenyl isocyanate)

Preparation of an aqueous solution of free hydroxylamine

Work-up of distillation residues from the synthesis of toluene diisocyanate

Method for operating a liquid ring compressor

Method for producing diisocyanates

Method for the purification of isocyanates

Method for the continuous production of isocyanates

Method for producing polyoxymethylene dimethyl ethers from methanol and formaldehyde

Method for separating out solvent from a reaction mixture resulting from an isocyanate synthesis and for purifying this solvent

Reprocessing of reaction material discharged from phosgenation reactors

Use of H2S-containing offgas streams for preparing sulfur-containing products

Method for producing isocyanates

Method for producing isocynates

Process for preparing pentamethylene 1,5-diisocyanate

Fixed-bed process for producing chlorine by catalytic gas-phase oxidation of hydrogen chloride

Method for producing highly pure aqueous hydroxylamine solutions

Method for the distillative recovery of toluylenediamine

Stabilizing agent for hydroxylamine solutions

Method for producing formaldehyde

Method for producing highly concentrated formaldehyde solution

Preparation of pyrazoles

Method for producing isocyanates

Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers

Method for producing polyisocyanates

Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification

Process for preparing polyoxymethylene dimethyl ethers from methanol and formaldehyde

Production of high-concentration formaldehyde solutions

Method for separating hydrogen chloride and phosgene

Method for the production of diaminodiarylmethanes

Method for producing an aqueous hydroxylamine solution devoid of salt

Initial compounds for producing polyurethanes

Method for producing isocyanates

BASF SE

Method for the production of dioxolane

Separation of liquid mixtures in a film evaporator

WOELFERT ANDREAS

Method for producing isocyanates

Method for the purification of isocyanates

KNOESCHE CARSTEN

Process for preparing isocyanates

Method for producing isocyanates

SCHELLING HEINER

Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation

PENZEL ULRICH

Process for preparing aromatic isocyanates

MATTKE TORSTEN

Process and apparatus for preparing isocyanates

RUMPF BERND

Process for preparing isocyanates