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Electrosynthesis
Company, Inc. maintains the strictest level of confidentiality in
all of its R&D efforts. For this reason, we do not publish a
list of the R&D clients that we have collaborated with. However,
on occasion we are encouraged to publish work funded by others.
The following selected publications will give an indication of areas
in which Electrosynthesis Company and its employees have contributed
to the advancement of electrochemical technology.
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| Electrochemical
Technology; Cells, Electrode Materials etc.
The
status of electrochemical technology is extensively reviewed each
year in the Journal of the Electrochemical Society. Dr. Ram Gopal
compiled this report for 1993 and 1994:
- Gibbons,
D. W.; Gopal, R.; "Report of the Electrolytic Industries
for the year 1993" In J. Electrochem. Soc. 1994,
414 (10), 2918-2933.
- Fritts,
S.; Gopal, R.; "Report of the Electrolytic Industries
for the year 1994" In J. Electrochem. Soc. 1993,
140 (11), 3337-3363.
There
are very few books available that discuss the scale-up of electrochemical
technology. Electrosynthesis - From Laboratory to Pilot to Production
has proven to be a very popular compilation of successfully
implemented technology.
- Bockris,
J. O'M.; Fletcher, S.; Gale, R. J.; Khan, S. U. M.; Kolb, D. M.;
Mazur, D. J.; Uosaki, K.; Weinberg, N. L.; "Electrochemistry
(1992-1995)" In Royal Society of Chemistry Annual
Reports, 1996, 92 (C), 23-73.
- Genders,
J. D.; Pletcher, D.; Electrosynthesis-From Laboratory to
Pilot to Production; Electrosynthesis: East Amherst, NY,
1990.
Research
into electrode materials is always a "hot topic" in electrochemistry.
Electrosynthesis Company has been the recipient of multiple awards
from the National Science Foundation and Department of Defense to
do research in this area.
- Chandler,
G. K.; Genders, J. D.; Pletcher, D.; "Electrodes Based
on Noble Metals" In Platinum Metals Review, 1997,
41(2), 54-63.
- Mazur,
D. J.; Weinberg, N. L.; Bolster, M.; "Modified Carbons
and Electrochemical Cells Containing the Same"; U. S.
Patent 4 835 074, 1989.
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| Electroorganic
Synthesis
Electrosynthetic
methods are well known in their application to synthesis of pharmaceuticals
and various organic intermediates. Among the books that have made
a significant contribution to advancing this field are the Weissberger
series edited by Norman Weinberg.
- Electroorganic
Synthesis: Festschrift In Honor of Manuel Baizer; Little,
R. D.; Weinberg, N. L., Eds.; Marcel Dekker: New York, 1991.
- Mazur,
D. J.; Weinberg, N. L.; "Industrial Electroorganic Synthesis
in the United States and Canada"; Kagaku to Kogyo:
Japan, 1990, (43), 2002-2005.
- Technique
of Electroorganic Synthesis: Scale-Up, Part III; Tilak,
E.V.; Weinberg, N.L., Eds.; Techniques of Chemistry Volume
V;
John Wiley & Sons: New York, 1982.
- Technique
of Electroorganic Synthesis Part II ; Weinberg, N.L.,
Ed.; Techniques of Chemistry Volume V; John Wiley & Sons:
New
York, 1975.
- Technique
of Electroorganic Synthesis Part 1; Weinberg, N.L., Ed.;
Techniques of Chemistry Volume V; John Wiley & Sons:
New
York, 1974.
Electrosynthesis
has become a valuable tool in the pharmaceutical industry. Electrosynthesis
Company has collaborated with several companies in this area. Among
those that have published some of our findings are Schering-Plough,
Pfizer and Eli Lilly.
- Bernasconi,
E.; Genders, D; Lee, J.; Longoni, D.; Martin, C. R.; Menon, V.;
Roletto, J.; Sogli, L.; Walker, D.; Zappi, G.; Zelenay, P.; Zhang,
H.; "Ceftibuten: Development of a Commercial Process Based
on Cephalosporin C. Part II. Process for the Manufacture of 3-Exomethylene-7(R)-glutaroylaminocepham-4-carboxylic
Acid 1(S)-Oxide," Organic Process Research and Development,
2002, 6, 158-168.
-
Chai, D.; Genders, D; Weinberg, N.; Zappi, G.; Bernasconi, E.;
Lee, J.; Roletto, J.; Sogli, L.; Walker, D.; Martin, C. R.; Menon,
V.; Zelenay, P.; Zhang, H.; "Ceftibuten: Development of a Commercial
Process Based on Cephalosporin C. Part IV. Pilot-Plant Scale Electrochemical
Reduction of 3-Acetoxymethyl-7(R)-glutaroylaminoceph-3-em-4-carboxylic
Acid 1(S)-Oxide" Organic Process Research and Development,
2002, 6, 178-183.
- Bernasconi,
E.; Chai, D.; Genders, J. D.; Lee, J.; Martin, C. R.; Menon, V.;
Roletto, J.; Sogli, L; Walker, D.; Weinberg, N. L.; Zappi, G.
D.; Zelenay, P.; Zhang, H.; "Pilot Plant Scale-Up of a
Pharmaceutical Intermediate" In the 12th International
Forum on Electrolysis in the Chemical Industry; Electrosynthesis:
Lancaster, NY, 1998.
- Genders,
J. D.; Pletcher, D.; "Electrosynthesis - ; A Tool for
the Pharmaceutical Industry Today?" In Chemistry and
Industry, September 1996, 682-686.
- Dunn,
P.; Kendall, P. M.; Mazur, D. J.; Murtiashaw, C. W.; Pexxullo,
S. L.; Zung, J. B.; "Electrochemical Deacetoxylation:
Synthesis of 11-Ketotigogenin" In J. Org. Chem. 1996,
61, 405.
- Kendall,
P. M.; Mazur, D. J.; Schmidt, C. R.;"Electrosynthesis
of Ketal-protected Glyceraldehyde" In the 7th Internationational
Forum on Electrolysis in the Chemical Industry; Electrosynthesis:
Lancaster, NY, 1993.
Electrosynthesis
Company, Inc. has also been developing novel electrosynthetic methods
for producing fine chemicals. A good example is a method for electrochemically
producing the free base of Cysteine. In this approach the starting
material cystine is dissolved in ammonium hydroxide to form a conductive
ammonium salt. At the end of the electrolysis the ammonium hydroxide
is simply evaporated to leave the pure product.
- Genders,
J. D.; Weinberg, N. L.; Zawodzinski, C.; "The Direct Electrosynthesis
of L. Cysteine Free Base" in Electroorganic
Synthesis: Festschrift In Honor of Manuel Baizer; Little,
R. D.; Weinberg, N. L., Eds.; Marcel Dekker: New York, 1991.
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| Inorganic
Electrosynthesis
The
chlor-alkali industry is one of the world's largest chemical process,
the economics of which rely on the balance for the demand of caustic
soda and chlorine. Since these are not always the same, Electrosynthesis
Company and others have investigated processes for the production
of caustic soda without the co-production of chlorine (see Watts
New, "Electrochemical
Salt Splitting"). One such process was developed under
funding from the National Science Foundation and in collaboration
with Chemetics International.
- Genders,
J. D.; Pletcher, D.; Spiegel, E.; Weinberg, N. L.; "Electrochemical
Methods for the Purification of Alkali Metal Hydroxides Without
the Co-Production of Chlorine"; U. S. Patent 5 246 551,
1993.
Hydrogen
Iodide is a valuable product used in the manufacture of a number
of high purity iodine compounds. Electrosynthesis Company, in collaboration
with Benham Electrosynthesis, has developed an electrochemical method
that produces HI of a higher purity.
- Genders,
J. D.; Hartsough, D. M.; Weinberg, N. L.; "Methods of
Producing Hydrogen Iodide Electrochemically"; U. S. Patent
5 520 793, 1996.
Electrosynthesis
Company has worked with Chemical Products Corporation to develop
an electrochemical process for the production of high purity alkaline
earth metal hydroxides.
- Maudlin,
L. B.; Adams, C.; Randolph, D. R.; Mazur, D. J.; Genders J. D.;
Chai, D. M.; "Process for the Production of Alkaline Earth
Hydroxide", U. S. Patent 6 375 825, 2002.
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| Membrane
Research
Ion
permeable membranes are an essential part of many electrochemical
cells. Moreover, they are used extensively for electrochemical separation
processes such as electrodialysis and salt splitting. Electrosynthesis
Company has been working with several groups including the National
Science Foundation and National Institute of Standards and Technology
through an ATP
NIST award with Eastman Chemical and Genencor International.
- Genders,
J. D.; Gopal, R.; Hartsough, D. M.; Kendall, P. M.; Long, W. J.;
Mazur, D. J.; Zappi, G. D.; "Electrodialysis Methods for Recovery
and Purification of Gluconic Acid Derivitives", U. S. Patent
6 187 570 B1, 2001.
- Genders,
J. D.; Hartsough, D. M.; "Electrochemical Method for Recovery
of Ascorbic Acid"; U. S. Patent 6 004 445, 1999.
- Davis,
T.; Genders, J. D.; Pletcher, D.; A
First Course in Ion Permeable Membranes ; Electrochemical
Consultancy: England, 1997.
- Genders,
J. D.; Thompson, J.; "Process for Producing Sodium Hydroxide
and Ammonium Sulfate from Sodium Sulfate"; U. S. Patent
5 098 532, 1992.
- Genders,
J. D.; George, E. L.; Pletcher, D.; "A Study of the Transport
of Formaldehyde and Ethlene Glycol Through Ion Permeable Membranes
in Electrolytic Cells" In J. Electrochem. Soc.
1996, 143 (1), 175-178.
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| Environmental
Electrochemistry
It
is well known that electrochemistry offers a unique approach to
both cleaner processing and remediation or recycle of waste streams.
- Electrochemistry
For a Cleaner Environment; Genders, J. D.; Weinberg, N.
L., Eds.; Electrosynthesis: East Amherst, New York, 1992.
The
destruction of nitrates in a variety of waste streams can be achieved
electrochemically. One area where we have been particularly active
is in the destruction of nitrate in radioactive waste streams present
at many of the DOE facilities. Electrosynthesis Company has been
the recipient of several contracts from Westinghouse Savannah River
Company for the destruction of such streams.
- Lilga,
M. A.; Orth, R. J.; Sukamto, J. P. H.; Rassat, S. D.; Genders,
J. D.; "Cesium Separation Using Electrically Switched
Ion Exchange" In Separation and Purification Technology
2001, 24, 451-466.
- Genders,
J. D.; Chai, D.; Hobbs, D. T.; "Durability Testing for
the Recovery of Sodium Hydroxide from Alkaline Waste Solutions"
In J. Appl. Electrochem. 2000, 30 (1) 13-19.
- Genders,
J. D.; Hartsough, D.; Hobbs, D. T.; "Electrochemical Reduction
of Nitrates and Nitrites in Alkaline Nuclear Waste Solutions"
In J. Appl. Electrochem. 1996, 26 (1), 1-9.
- Hartsough,
D. M.; Hobbs, D. T.; Genders, J. D.; "Electrochemical
Treatment of Radioactive Wastes at the Savannah River Site"
In the 4th International Fourm on Electrolysis in the Chemical
Industry; Electrosynthesis: Lancaster, NY, 1990.
The
destruction of organics in wastewater continues to be an area of
interest to many companies. Electrosynthesis Company has been involved
in the development of cell technologies in this field.
The
electrochemical destruction of organic acids by converting them
into combustible fuels is an attractive approach to the treatment
of a waste stream. This approach was developed at Electrosynthesis
Company in collaboration with DuPont Specialty Chemicals.
- Genders,
J. D.; Harstough, D.; Super, J.; "Electrochemical Destruction
of Organic Acids"; The Electrochemical Society Extended
Abstracts, 1994. Vol. 94-1, Abstract 761.
Electrosynthesis
Company also successfully accomplished the electrochemical destruction
of PCBs while working with Sandpiper.
- Aurnou,
E. A.; Liolios, E. A.; Kendall, P. M.; Mazur , D. J.; Weinberg,
N. L.; "High Surface Area Electrode for PCB Destruction";
The Electrochemical Society Extended Abstracts, 1987. Vol.
87-2, Abstract 1857.
- Mazur,
D. J.; Weinberg, N. L.; "Methods for Electrochemical Reduction
of Halogenated Organic Compounds"; U. S. Patent 4 702
804, 1987.
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Fill
out our Contact form for more information.
Email
us: info@electrosynthesis.com
Call
Us: (716) 684-0513, ex.111
Fax
Us: (716) 684-0511
Write
to us:
72
Ward Road
Lancaster,
NY 14086-9779 USA
©Electrosynthesis
Co., Inc. 1998-2004
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