Inventor

SIEGEL WOLFGANG

DE123 patents

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

SIEGEL WOLFGANG

BASF AG

Method for the separation of acids from chemical reaction mixtures by means of ionic fluids

Catalyst system containing Ni(0) for hydrocyanation

Catalyst comprising at least one phosphonite ligand based nickel (O) complex and method for the production of nitriles

Monoolefinic C5 mononitriles, method for the production and the use thereof

Method for producing mixtures of monoolefinic C5-mononitriles by catalytic hydrocyanation

Method for the production of adipodinitrile by hydrocyanation of 1,3-butadiene

Use of azeotropically dried nickel(ii) halogenides

Sterically hindered chelate phosphinite-phosphite ligand, catalyst, comprising at least one nickel(0) complex stabilized by said ligand and method for production of nitriles

Phosphonites, use thereof as ligand in transition metal complexes and method for production of nitriles

Phosphonites

Method for separating pentenenitrile isomers

Phosphites

Catalyst comprising a complex of a metal of subgroup VIII, on the basis of a phosphonite ligand and method for hydroformylation

Preparing amines

Catalyst comprising at least one nickel(0) complex based on a phosphonite ligand, and the preparation of nitriles

Process for preparing cyclopropylacetylene

Process for producing organic nitrogen compounds, special organic nitrogen compounds and mixtures of such compounds and their use as fuel and lubricant additives

Process for preparation of arenebisphosphine oxides

Catalyst comprising a complex of a metal from subgroup VIII based on a bidentate phosphonite ligand, and method for producing nitriles

Homogeneous isomerization of cis-2-pentene nitrile to form 3-pentene nitrile

Obtaining an aliphatic dialdehyde Monoacetal

Method for the isomerization of cis-2-pentenenitrile to form trans-3-pentenenitrile

System suitable for the hydrocyanation of olefinically unsaturated compounds

Method for the separation of acids from chemical reaction mixtures by means of ionic fluids

Preparation of R/S-γ-lipoic acid or R/S-α-lipoic acid

Substituted oxime ethers, their preparation and their use for controlling pests and fungi

Enzymatic acylation of amino acid esters using a carboxylic acid ester substituted with oxygen on the alpha carbon

Racemization of optically active amines

Preparation of α-chloroalkyl aryl ketones

Preparation of acylaromatic compounds

Preparation of β-hydroxycarboxylates

Process for preparing pentamethylene 1,5-diisocyanate

Hydrocyanic acid consisting of formamide

Preparation of 3-cyano-3, 5, 5-trimethylcyclohexanone

Preparation of polyacylated aromatric compounds

Preparation of R/S-γ-lipoic acid or R/S-α-lipoic acid

Preparation of 2,4,6-trimethylbenzoic acid

Preparation of N-benzylamines

BASF SE

Extraction of nickel (0) complexes from nitrile mixtures with reduced rag formation

Ni(0) -containing catalyst system

Method for producing organic phosphorous compounds containing halogens

Process for the preparation of (3E, 7E)-homofarnesol

Synthesis of chromanol derivatives

Method for producing astaxanthin from astacin

WAESCHLE MASCHF GMBH

Process and gravity feed mixer for mixing bulk materials in a container

Bucket wheel gate for dispensing granulated bulk material

BARTSCH MICHAEL

Method for purifying hydrocyanic acid

SUBKOWSKI THOMAS

Use of physiological cooling active ingredients, and agents containing such active ingredients

JUNGKAMP TIM

Method for producing linear pentenenitrile

SYMRISE AG

Use of physiological cooling active ingredients, and agents containing such active ingredients