Basf Se Corporation

Exxonmobil Research and Engineering Company

Basf Corporation

Exxonmobil Technology and Engineering Company

University of California

Basf Aktiengesellschaft

Construction Research & Technology Gmbh

Basf Se (reitstötter, Kinzebach & Partner)

Martin Ernst

Johann-Peter Melder

Thomas Ingram

Gerald Vorberg

Michael Siskin

Georg Sieder

Alexander Panchenko

Joaquim Henrique Teles

Thomas Schaub

Christof Wilhelm Wigbers

Tatjana Huber

Hermann Luyken

Rocco Paciello

Thomas Krug

Ansgar Gereon Altenhoff

Alfred Oftring

Sophia Ebert

Christian Schade

Thomas Heidemann

Oemer Uensal

Bjoern Ludolph

Carla S Pereira

Markus Dierker

Alwin Rehfinger

Steffen Maas

Juergen Detering

Gunnar Heydrich

Alexej Michailovski

Dieter Faul

P Scott Northrop

Bernd Stein

Nicolas Vautravers

Matthias Frauenkron

John F Hartwig

Gledison Fonseca

Jürgen Detering

Thomas Hill

Karl-Heinz Ross

Sebastian Ahrens

Stephan Freyer

Kirsten Dahmen

Thorsten Johann

Bram Willem Hoffer

Ralf Boehling

Laszlo Szarvas

Gabriele Iffland

Sophie Maitro-Vogel

Michael Limbach

Axel Paul

Stephanie Jaegli

Steffen Oehlenschläger

Karl-Heinz Roβ

Thomas Wesley Holcombe

Frank Kuhnke

Christian Scholz

Veit Stegmann

Jörg Pastre

Torsten Freund

Klaus Breuer

Stefan Kotrel

Holger Evers

Mario Vierle

Ralf Böhling

Gazi Tuerkoglu

Christian Gruenanger

Peter Hofmann

Madalina Andreea Stefan

Wolfgang Staffel

Michael Schelper

Ferdinand Leifeld

Bjoern Langlotz

Virginia M Reiner

Ellen Dahlhoff

Piotr Makarczyk

Giovanni D'Andola

Peter Raatz

Falk Simon

A Stephen K Hashmi

Nicolas Marion

Joachim-Thierry Anders

Stephan Zuend

Marek Pazicky

Harald Meiβner

Norbert Gutfrucht

Kathrin Wissel-Stoll

Frank Hettche

Eva-Maria Reis-Walther

Jaroslaw Michael Mormul

Horst Grafmans

Hannes Ferdinand Zipfel

Pavel Tuzina

Oliver Trapp

Nina Susanne Hillesheim

Fritz Nimtz

Jenny P Seagraves

Beatrice Rössler-Feigel

Johannes Barth

Ömer Ünsal

Rajendra Sundar

Sylvia Von Krog

A process for the conversion of glycolaldehyde with an aminating agent in the presence of hy-5 drogen and of a catalyst, wherein the conversion is carried out in the gas phase.

Gas-phase process for the conversion of glycolaldehyde with an aminating agent

A process for removing acid gases from a fluid stream, wherein the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising at least one diluent and a compound of the general formula (I) wherein R1 is C-C-alkyl; R2 is C-C-alkyl; R3 is selected from hydrogen and C1-C3-alkyl; R4 is selected from hydrogen and C-C-alkyl and n is an integer in the range of 1 to 4.

Process for removal of acid gases from a fluid stream

Capture of hydrogen sulfide from a gas mixture may be accomplished using an aqueous solution comprising an amine. Certain sterically hindered amines may selectively form a reaction product with hydrogen sulfide under kinetically controlled contacting conditions and afford a light phase and a heavy phase above a critical solution temperature, wherein the hydrogen sulfide may be present in either phase. Upon separation of the light phase from the heavy phase, processing of one of the phases may take place to remove hydrogen sulfide therefrom. Recycling of the amine to an absorber tower may then take place to promote capture of additional hydrogen sulfide.

Acid gas scrubbing methods featuring amine phase separation for hydrogen sulfide capture

The invention relates to a method for manufacturing a concentrate enriched in iron mineral content from an ore, which contains an iron mineral and silicate, by reverse flotation, which method comprises the step of (c) adding a compound of formula I wherein Ris C-Calkyl or alkenyl, which is linear or branched, Ris H, C-Calkyl, which is linear or branched, Ris —X—NH, H or C-Calkyl, which is linear or branched, and X is C-Calkylene, which is linear or branched, or a salt of a protonated compound of formula I and an anion, to a prepared aqueous pulp of the ore and optionally one or more flotation auxiliaries to obtain an aqueous mixture. Furthermore, a method for manufacturing a specific group of compounds of formula I, i.e. compounds of formula 1-X wherein Ris C-Calkyl, which is linear or branched, Ris H, Ris —X—NHand X is C-Calkylene, which is linear or branched, is disclosed.

Method for flotation of a silicate-containing iron ore with a cationic collector

A process for the conversion of glycolaldehyde with an aminating agent in the presence of hydrogen and of a catalyst in a glycolaldehyde conversion reactor, wherein one or more organic carboxylic acids are fed into the glycolaldehyde conversion reactor.

Conversion of glycolaldehyde with an aminating agent

A process for removal of acid gases from fluid stream, wherein the fluid stream is brought into contact with an absorbent to obtain a treated fluid stream and a laden absorbent, the absorbent comprising a diluent and a compound of the general formula (I) wherein Ris selected from C-C-alkyl and C-C-hydroxyalkyl; Ris selected from hydrogen and C-C-alkyl; Ris selected from hydrogen and C-C-alkyl; Ris selected from hydrogen and C-C-alkyl; Ris C-C-alkyl; with the proviso that at least one of the following conditions (i) and (ii) is met: (i) Ris C-C-alkyl bound to the nitrogen atom via a secondary or tertiary carbon atom; (ii) when Ris hydrogen, Ris C-C-alkyl; or when Ris C-C-alkyl, at least one of Rand Ris C-C-alkyl; and n is an integer from 0 to 6. Further provided is an absorbent for the absorption of acid gases from a fluid stream, comprising a diluent and a compound of the general formula (I) as defined above, as well as the use of a compound of the general formula (I) as defined above for removal of acid gases from a fluid stream. The absorbents are useful for the selective removal of hydrogen sulfide from fluid streams and have high acid gas loading capacity, high stability, and low volatility.

Process for removal of acid gases from a fluid stream with a liquid absorbent comprising a piperazine ring

Continuous reductive dehydroxymethylation process for the preparation of alkanes from primary aliphatic alcohols, having 3 to 25 carbon atoms, in the presence of hydrogen and a catalyst in a reactor at a pressure of ≥2 bar, characterized in that the dehydroxymethylation takes place in the vapor phase.

Continuous process for the production of alkanes

A process for selectively separating HS from a gas mixture which also comprises COis disclosed. A stream of the gas mixture is contacted with an absorbent solution comprising one or more amines, alkanolamines, hindered alkanolamines, capped alkanolamines, or mixtures thereof. The HS/COselectivity of the absorbent solution is preferably greater than about 4.0 for an acid gas loading [mol(CO+HS)/mol(amine)] between about 0.2 and about 0.6, and is achieved by reducing pH of the absorbent solution.

Process for increased selectivity and capacity for hydrogen sulfide capture from acid gases

A process for the preparation of amino alcohols includes condensing a compound of Formula (II), a stereoisomer, a tautomer, or a salt thereof with a compound of Formula (IIIa) or Formula (IIIb), a stereoisomer, a tautomer, or a salt thereof to form a condensation product; hydroxylating or acyloxylating the condensation product in the presence of an oxidant to obtain a hydroxylation or acyloxylation product; and subjecting the hydroxylation or acyloxylation product to one or more subsequent reactions comprising a hydrolysis reaction, alcohol deprotection, an amino lysis reaction, or a combination of two or more thereof to obtain an amino alcohol of Formula (I). 

Process for preparation of amino alcohols

An absorbent for the selective removal of hydrogen sulfide over carbon dioxide from a fluid stream, wherein the absorbent contains an aqueous solution, comprising an amine of formula (I) and/or an amine of formula (II) wherein U&#x2014;V&#x2014;W is CH&#x2014;O&#x2014;CHR, N&#x2014;CO&#x2014;CHRor N&#x2014;CO&#x2014;NR; U'&#x2014;V&#x2032;&#x2014;W is C&#x2014;O&#x2014;CR; Ris independently C-C-alkyl; Ris selected from hydrogen and C-C-alkyl; Ris independently selected from hydrogen and C-C-alkyl; Ris independently selected from hydrogen and C-C-alkyl; Ris selected from hydrogen, C-C-alkyl, (C-C-alkoxy)-C-C-alkyl, and hydroxy-C-C-alkyl; and x is an integer from 1 to 10. The absorbent has a reduced tendency for phase separation at temperatures falling within the usual range of regeneration temperatures for the aqueous amine mixtures and a low volatility in aqueous solvents. 

Absorbent and process for selectively removing hydrogen sulfide

A process for producing a compound of the formula (I) involves at least reacting a compound of the formula (II) with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.

Process for producing substituted amino alcohols

The invention relates to a process for preparing certain amines, wherein, in a first step, a corresponding amino alcohol is reacted with a suitable carbonyl compound and then, in a second step, the intermediate obtained in the first step is reacted with a suitable amine component to form the desired amine.

Method for synthesizing amines

An absorbent for the selective removal of hydrogen sulfide from a fluid stream comprising carbon dioxide and hydrogen sulfide, wherein the absorbent contains an aqueous solution, comprising: a) an amine or a mixture of amines of the general formula (I) wherein Ris C-C-alkyl; Ris C-C-alkyl; Ris selected from hydrogen and C-C-alkyl; x is an integer from 2 to 10; and b) an ether or a mixture of ethers of the general formula (II): R&#x2014;[O&#x2014;CH&#x2014;CH]&#x2014;OH; wherein Ris C-C-alkyl; and y is an integer from 2 to 10; wherein Rand Rare identical; wherein the mass ratio of b) to a) is from 0.08 to 0.5. The absorbent is suitable for the selective removal of hydrogen sulfide from a fluid stream comprising carbon dioxide and hydrogen sulfide. The absorbent has a reduced tendency for phase separation at temperatures falling within the usual range of regeneration temperatures for the aqueous amine mixtures and is easily obtainable. 

In a process for removal of acid gases from a fluid stream the fluid stream is contacted with an absorbent to obtain a treated fluid stream and a laden absorbent. The absorbent comprises a diluent and a compound of the general formula (I) wherein Ris C-C-alkyl; Ris C-C-alkyl; Ris selected from hydrogen and C-C-alkyl; and Ris selected from hydrogen and C-C-alkyl. 

Growing community of inventors

Heidelberg, Germany

Martin Ernst