Specialty practice value

In the United States and most industrialized countries, the practical value of the commercial production of an organic chemical from biomass depends strongly on the availability and price of the same chemical produced from petroleum or natural gas, and occasionally coal. As will be shown shortly, there is no technical barrier that precludes production of commodity chemicals from biomass feedstocks. And it will become evident that many of the more complex organic chemicals are best synthesized from biomass feedstocks or can be extracted from appropriate biomass species. These chemicals can also be synthesized from hydrocarbon feedstocks, but the costs are often prohibitive. In the midst of the fossil fuel era, the less complex, commodity organic chemicals are preferentially manufactured from petroleum or natural gas, whereas complex specialty chemicals are derived from biomass. But commodity organic chemicals are open to entry by biomass feedstocks if they can provide economic advantages. Note that many of the routes described here to commodity chemicals from biomass were in commercial use in the past, are still in commercial use, have recently been commercialized, or have been developed and are available for commercial use. 

As discussed in Chapter 2.2.2 a broad range of criteria have to be considered if an in-depth assessment of individual sites is required. In practice matters are further complicated by the fact that the majority of sites host plants from multiple value chains. In this chapter a uniform decision support tool is developed to ensure consistent evaluations in all instances requiring site assessments. To this end Chapter 4.1 introduces the field of Multiple Criteria Decision Analysis (MCDA). Two different families of tools that could be applied to the decision problem at hand are discussed in greater detail in Chapters 4.2 and 4.3 respectively. As the use of Data Envelopment Analysis (DEA) for multiple criteria decision problems has been proposed in literature, too, the method is introduced in Chapter 4.4. An evaluation model for specialty chemicals production sites developed in cooperation with the industrial partner is presented in Chapter 4.5 and insights from application case studies are reported. 

Chemical products can be roughly segmented into basic chemicals, polymers, specialty and performance products, industrial gases, and agrochemicals. However, for practical purposes they are usually classified as commodities and specialties , the latter having higher value added and distinctive key success factors that allow for some additional differentiation between competing products. Albeit this distinction is commonplace in the industry, it should be kept in mind that chemical commodities are not nearly as commoditized as true commodities such... 

About the Author Dr. Snella is the Assistant Dean of the University of Missouri— Kansas City School of Pharmacy and Vice Chair and Associate Professor for the Division of Pharmacy Practice in Columbia, Missouri. Her pharmacy education includes a B.S. in pharmacy from the University of Iowa and a Pharm.D. from the University of Texas— Austin/University of Texas Health Sciences Center, San Antonio. She also completed a specialty residency inprimary care at the WilliamS. Middleton Aeterans Hospital in Madison, Wisconsin. Dr. Snella has been working in the area of compensation for pharmacist services for over 10 years. She has provided value-added services in both private physician offices and hospital outpatient clinics. She is invited frequendy to speak regarding pharmacist service compensation and has authored several articles and book chapters on this topic. 

But, perhaps the greatest difference between this specialty and all other specialties is the value placed on versatility, adaptability, communication skills and teamwork. Physicians and pharmacists must learn that in pharmaceutical medicine, they are unlikely to be as predominant as decision makers as they were in clinical practice. Those who can become an expert in some subject and be respected for it by people both inside and outside the company, even though they may never have heard of that particular disease or drug before three months ago, will do well if they can match such knowledge with superior inter-personal skills. Knowing when to lead, when to follow and when to get out of the way, rather than presuming a leadership role in all situations, will always be valued in this specialty. 

As an example of a more complicated case than the two step sequence, we will discuss the esterification of a carboxylic acid with an alcohol. This is a very old and well-known category of homogeneous liquid-phase reactions. The esters of carboxylic acids are of an enormous practical importance for example, millions of tons of polyesters are produced via the reaction of dicarboxylic acids with diols and a wide variety of mono- and di-esters are used in the production of fine and specialty chemicals, such as pharmaceuticals, herbicides, pesticides and fragrances. The esterification reaction is a homogenous liquid-phase process where the limiting conversion of the reactants is determined by equilibrium. Typically the equilibrium constants of esterification reactions have values of 1-10, which implies that considerable amounts of reactants exist in the equilibrium mixture. 

In daily practice, a frequently asked question looks for the tolerable value of the thermal reaction number if the maximum sensitivity value is fixed. The background to this situation usually is a given plant with a certain instrumentation and a known variability for the coolant temperature under normal operating conditions. Usually more than 5 K variability in the maximum reaction temperature cannot be tolerated in the production of specialties such as those manufactured in the fine chemicals and pharmaceutical industry. This information fixes the value for the maximum sensitivity. 

One example of a crop like this is maize (corn). If this species were to be planted, great lengths would have to be taken to avoid contamination, especially in the U.S. corn belt. Modified corn intended for pharmaceutical use is greatly restricted on this basis. However, other specialty corn crops are commercially grown in the United States that require identity preservation management practices. This value-added market is small, but an increasing part of crop production in the U.S. 

Practically all commercial cereals have special types with unique properties for different uses. These specialty grains have been selected throughout the years because they have unique uses in the industry, impart different culinary properties to processed foods, and/or have an improved nutritional or nutraceutical value. Gaierally, these grains have a greater economic value in the market and are not considered as commodities. 

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