Cargill Inc.

Gevo, Inc.

Cargrill, Incorporated

Cargill, Incorported

Patrick R Gruber

Jeffrey John Kolstad

Eric Stanley Hall

Christopher M Ryan

Robin Sue Eichen Conn

David Roy Witzke

Richard Douglas Benson

Ronald L Borchardt

Aharon Eyal

Matthew L Iwen

Matthew W Peters

Andrea Lee Brosch

Mark H Hartmann

Aristos Aristidou

Andrew Hawkins

William Andrew Evanko

David A Glassner

Leo E Manzer

Rod R Fisher

David E Henton

Joshua D Taylor

Josefa M Griffith

Yassin Al Obaidi

Betty Hazan

Riki Canari

John N Starr

Matthew R Callstrom

Mark D Bednarski

Kent Evans

Fudu Miao

Peter Meinhold

Aharon Meir Eyal

Jed Richard Randall

James Zakareya Nangeroni

James Lunt

Nancy Uzelac Buehler

Ali Zakareya El-Afandi

James Wade

Thomas Buelter

Paul McWilliams

Marco Landwehr

Jun Urano

Uvini Gunawardena

Xiangsheng Meng

Reid M Renny Feldman

Michael J Chanen

Bernhard George Van Bommel

Matthew L Iwan

Matthew Lee Iwen

Richard D Benson

Methods for producing a biofuel are provided. Also provided are biocatalysts that convert a feedstock to a biofuel.

Methods for the economical production of biofuel from biomass

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.

Recovery of higher alcohols from dilute aqueous solutions

The present invention is directed to renewable compositions derived from fermentation of biomass, and integrated methods of preparing such compositions.

Renewable compositions

Isobutene, isoprene, and butadiene are obtained from mixtures of Cand/or Colefins by dehydrogenation. The Cand/or Colefins can be obtained by dehydration of Cand Calcohols, for example, renewable Cand Calcohols prepared from biomass by thermochemical or fermentation processes. Isoprene or butadiene can be polymerized to form polymers such as polyisoprene, polybutadiene, synthetic rubbers such as butyl rubber, etc. in addition, butadiene can be converted to monomers such as methyl methacrylate, adipic acid, adiponitrile, 1,4-butadiene, etc. which can then be polymerized to form nylons, polyesters, polymethylmethacrylate etc.

Integrated methods of preparing renewable chemicals

The techniques for processing lactic acid/lactate salt mixtures are provided. Preferred mixtures for processing are obtained from fermentation broths, preferably from fermentation processes conducted at a pH of 4.8 or lower. The techniques generally concern the provision of separated lactic acid and lactate streams, from the mixtures. Preferred techniques of separation and processing of each of the streams are provided.

Lactic acid processing; methods; arrangements; and, products

The invention provides a process for the recovery of lactic acid and products thereof from an aqueous solution containing free lactic acid and at least one lactate salt at a total concentration of at least 5%, the process comprising the steps of: extracting at least 70% of the free lactic acid from the aqueous solution by contacting the solution with a basic extractant, to form a lactic acid-containing extract and a lactic acid-depleted, lactate salt-containing aqueous solution; separating the lactic acid-containing extract from the depleted aqueous solution; and stripping the extracted lactic acid from the extract by methods known per se, to form a solution of lactic acid and a stripped extractant.

Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant

A nonwoven fabric comprised of a lactide polymer. The lactide polymer comprises a plurality of poly(lactide) polymer chains, residual lactide in concentration of less than about 2 percent and water in concentration of less than about 2000 parts-per-million. A process for manufacturing a nonwoven fabric with the lactide polymer composition is also disclosed.

Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof

Growing community of inventors

Saint Paul, MN, United States of America

Patrick R Gruber