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Fine Chemicals from Renewables

In the search for unique properties, chemists have isolated pertinent compounds, for which they have revealed the structures and in many cases developed syntheses. For many, in general, simpler compounds, industrially feasible preparations have also been worked out. However, for most of the more complex structures, nature proves to be much more efficient and cheaper, especially in the field of chiral compounds. Therefore, nature is still the supplier of many natural products, which are useful as such or as starting materials for other chemicals and auxiliaries in new chemical reactions. [Pg.101]

Classical examples of industrial biotechnology include the manufacture of ethanol, lactic acid, citric acid, and glutamic acid. The share of renewables in the feedstock of the chemical industry is expected to increase substantially in the years to come [2-4], A newcomer here is propane-1,3-diol (DuPont/Tate Lyle), with the start-up of industrial fermentation foreseen within one year. [Pg.101]

Catalysis for Renewables From Feedstock to Energy Production [Pg.101]

Copyright 2007 WILEY-VCH Verlag GmbH Co. KGaA, Weinheim [Pg.101]

In particular, in the field of fine chemicals, natural products - in the broadest sense - will serve as functional molecules and are often appropriate starting structures for other target systems. [Pg.102]


Many more preparations of fine chemicals from renewables have been worked out, and even more are being developed. The following sections present several examples that catch the eye. Examples that are now an integral part of modern chemistry, with a future in which the use of chemicals that are harmful to the environment will be avoided and where novel processes will minimize the amounts of waste products. [Pg.103]

Biomass feedstocks are already used in some processes, such as in oleochemistry (Chapter 4). In addition, biopolymers are somewhat well established, although their use and production still needs to increase and new improved (catalytic) methods for their production are required. Fine chemicals from renewables (Chapter 5) is another area in which various examples already exist, demonstrat-... [Pg.400]

The catalytic conversion of platform molecules produced by bioconversion of renewables into bioproducts. This is already the basis of many industrial processes, leading to important tonnages of chemicals and polymers from carbohydrates and triglycerides and fine chemicals from terpenes. This approach needs to be extended and process efficiency should be strengthened by designing more active and selective catalysts. [Pg.72]

Kuusisto, J., Tokarev, A.V., Murzina, E.V., Roslund, M.U., Mikkola, J.-P., Murzin, D., and Salmi, T. (2007) From renewable raw materials to high-value added fine chemicals - catalytic hydrogenation and oxidation of D-lactose. Catal. Today, 121, 92-99. [Pg.187]

As will be evident from the above discussion many valuable chemicals can be made from renewable resources. In many cases current production methods fail to compete effectively with routes from fossil sources. With advances in biotechnology and increasing oil prices, renewable feedstocks will become more commercially attractive, especially for fine, speciality and pharmaceutical chemicals. If future bulk chemical production were to... [Pg.204]

Fine and specialty chemicals can be obtained from renewable resonrces via multi-step catalytic conversion from platform molecules obtained by fermentation. An alternative method decreasing the processing cost is to carry out one-pot catalytic conversion to final product without intermediate product recovery. This latter option is illustrated by an iimovative oxidation method developed in our laboratory to oxidize native polysaccharides to obtain valuable hydrophilic end-products useful for various technical applications. [Pg.263]

As Table 2.2.1 demonstrates, the chemical industry step by step has reached a point where fine chemicals are produced from biomass, especially by means of biotechnology. Beginning with the production of bulk chemicals, not only biotechnology but also chemocatalysis is needed to convert renewable feedstock into products in the high quantities characteristic of bulk chemicals. [Pg.105]

Gallezot P. Catalytic routes from renewables to fine chemicals. Catal Today. 2007 121 76-91. [Pg.106]

Increasing attention has recently been devoted to the selective dehydration of hexoses, particularly fructose, to 5-hydroxymethylfurfural (10, Scheme 8) [14], This compound, which can thus be derived from renewable biomass and agricultural surpluses, finds application as starting material in the preparation of fine chemicals and polymers. [Pg.303]

Several plenary lectures were given at the conferences, including a call from Tsotsis for renewed emphasis on using membrane reactors to reduce or eliminate the separation task. An update to his 1994 review paper was given at the ISCRE-15 conference by van Swaaij, who concluded that the outlook for membrane reactors was perhaps more optimistic than a few years ago. Dalmon presented a timely survey of membrane catalysis for liquid applications, and several recent publications have focused on this, including pervaporation. Dalmon also emphasized the area of fine chemicals production, where the use of membranes for three-phase contacting could see a revival of interest. An example of this was presented at the ISCRE-15 conference. [Pg.86]

Gallezot, P. (2007) Catalytic routes from renewables to fine chemicals. Catalysis Today, 121(1-2), 76-91. Seniha Guener, F., Yagci, Y. and Tuncer Erciyes, A. (2006) Polymers from triglyceride oils. Progress in... [Pg.132]

As two non-petroleum chemicals readily accessible from renewable resources, both furfural and HMF are suitable starting materials for the preparation of versatile fine chemicals [14, 102-106] and can also serve as renewable monomers for preparation of sustainable polymer products [107]. Schemes 3, 4, and 5 depict the stmctures of the selected furan-based monomers [107-113]. As a typical precursor, furfural can be converted to a vast array of furan-based monomers bearing a moiety which can normally be polymerized by chain-growth polymerization mechanisms [108-113]. As shown in Scheme 3, these monomers are all readily polymerizable by chain-growth reactions. However, depending on their specific structure, the nature of the polymerization mechanism is different, ranging from free radical, cationic, anionic, to stereospecific initiation [108-113]. On the other hand, furfuryl... [Pg.195]

As research and development in this area has not yet achieved its full potential, the field of bioprocessing of renewable resources into commodity bioproducts will continue to expand to attain its commercial goal. Additionally, new bioproducts and fine chemicals will be added to the existing list of commodity bioproducts, as our capacity to produce sugars from cellulosic residues efficiently and economically... [Pg.576]


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