Total consumption

Flame Sources Atomization and excitation in flame atomic emission is accomplished using the same nebulization and spray chamber assembly used in atomic absorption (see Figure 10.38). The burner head consists of single or multiple slots or a Meker-style burner. Older atomic emission instruments often used a total consumption burner in which the sample is drawn through a capillary tube and injected directly into the flame. 

Chlorine cannot be stored economically or moved long distances. International movements of bulk chlorine are more or less limited to movements between Canada and the United States. In 1987, chlorine moved in the form of derivatives was 3.3 million metric tons or approximately 10% of total consumption (3). Exports of ethylene dichloride, vinyl chloride monomer, poly(vinyl chloride), propylene oxide, and chlorinated solvents comprise the majority of world chlorine movement. Countries or areas with a chlorine surplus exported in the form of derivatives include Western Europe, Bra2il, USA, Saudi Arabia, and Canada. Countries with a chlorine deficit are Taiwan, Korea, Indonesia, Vene2uela, South Africa, Thailand and Japan (3). 

Total consumption of TiF in both the United States and Europe is less than 500 kg/yr. TiF is available from Advance Research Chemicals, Inc., Aldrich, Aesar, Johnson/Matthey, Cerac, PCR, and Pfalt2 Bauer of the United States, Fluorochem of the United Kingdom, and Schuchardt of Germany. Its 1993 price varied between 300 to 400/kg. 

Ref. 10. Assumes noncrisis conditions, tax incentives and PURPA ia place continued to 2000, no legislative mandates to embark on an off-oil campaign, and total consumption of 91.7 EJ ia 2000. 

Operation Energy consumed per dry wood produced, MT/t Total consumption, %... 

Fig. 14. Acetylene for chemical us in the United States (37). Courtesy of Chem Systems. Total consumption for specified years in 10 t as follows 1965,...

Western Europe. Acetylene demand in Western Europe exceeds by far that of any other geographical region. Prior to the unification of Germany in 1990, acetylene consumption in Western Europe was estimated to be 430, 000 t/yr with the addition of 280,000 t of consumption attributed to the former German Democratic RepubHc, total consumption increased to 710,000 t. 

In 1987 nonmotor fuel uses of butanes represented ca 16% of the total consumption. Liquid petroleum gas (LPG) is a mixture of butane and propane, typically in a ratio of 60 40 butane—propane however, the butane content can vary from 100 to 50% and less (see Liquefied petroleum gas). LPG is consumed as fuel in engines and in home, commercial, and industrial appHcations. Increasing amounts of LPG and butanes are used as feedstocks for substitute natural gas (SNG) plants (see Fuels, synthetic). / -Butane, propane, and isobutane are used alone or in mixture as hydrocarbon propellents in aerosols (qv). 

In Europe total consumption of plastic foam insulation for 1992 was 29 x 10 m (>12 billion board ft) withHttle or no growth seen from 1991. AU products were expected to grow by an average of 1% due primarily to the continued effects of the economic recession. 

Fig. 19. Trends in the lead industry in the United States (—), total consumption (-), total production and (-), secondary production. The...

Total consumption of lead in the United States in 1993 reached 1,318,800 t. Of this, 766,000 t (58%) is allocated to battery use suppHed as either a mixed oxide or as metal. Approximately 95% of batteries are recycled and the lead recovered. In 1993, 908,000 t of lead came from secondary smelters and refiners compared to 350,000 t originating in primary mines and smelters (39). Approximately 51,000 t of lead was consumed in U.S. production of all oxides and chemicals appHcable to all industries other than batteries. Estimates include 8000 t for plastics, 6000 t for gasoline additives, 2000 t for mbber, and 30,000 t for ceramics, glass, and electronics. Lead is not used to any extent in dispersive appHcations such as coatings. 

The production and consumption of LPG in the United States increased dramatically from its early beginnings in the 1930s until the international energy crises of the 1970s when rising prices and regulatory restraints resulted in reduced domestic production. However, total consumption, including imports. 

Worldwide production capacity of Hquid polysulfides is about 33,000 t with manufacturing sites in the United States, Japan, and Germany. Total consumption is about 28,600 t. Approximately 50% is for insulating glass sealants, 30% for constmction appHcations, and - 10% for aircraft sealants. In addition, - 909 t of the soHd polysulfide mbbers are sold each year. 

Mechanical Applications. The volume of vitreous sHica used for fibers is a very smaH part of the total consumption. However, some interesting and significant appHcations have been developed ia the laboratory, particularly ia the area of measurements. 

The total consumption of succinic acid and succinic anhydride in 1990 was 1,500 t in the United States, 2,500 t in Europe, 7,500 t in Japan, and 1,500 t in other countries. Production was 500 t in the United States, 2,500 t in Europe, and 11,000 t in Japan. The total installed capacity is in the 18,000—20,000-t/yr range. The total consumption decreased slightly between 1990 and 1994 mainly because of the replacement of succinic acid by fumaric acid in bath preparations, which is one of the main uses of succinic acid in Japan. The principal producers are Buffalo Color in the United States, Lon2a SpA and Chemie Tin 2 in Europe, Kawasaki Kasei, Nippon Shokubai, Takeda Chemical, Kyowa Hakko, and New Japan Chemical in Japan. 

Table 3 summarizes many of the uses mentioned in the literature. The main use of succinic acid in Japan is for bath preparations (314—322). This application in 1994 accounted for nearly 80% of total consumption. After recording a more than 10% yearly increase in the late 1980s, the growth of this apphcation has slowed down, and consumption is decreasing on account of the replacement of succinic acid by fumaric acid for economic reasons. This trend is expected to continue in the coming years. 

Year Total consumption Automotive components Builders hardware Electrical components Domestic apphances Industrial, agricultural, and commercial machinery MisceUa-ne ous industries Sport goods and toys Scientific, sound, and television equipment... 

Industrial Consumption. The total consumption of primary antimony fell during the period from 1970 to 1986 (Table 3) because of the declining demand for antimony in most types of metallic uses. Since 1986, the demand for primary antimony in antimonial lead has increased, probably because of an increase in demand for starting—lighting—ignition (SLI) batteries. Total consumption in nonmetallic uses has remained stable. However, an increasing proportion of this is made up of flame retardant uses. Currendy, batteries and flame retardants are the two largest markets for antimony. 

U.S. consumption of carbon black in 1988 by various market sectors is shown in Table 6. About 90% of total consumption is in the mbber industry and 69% for tires. About 10% is consumed for other automotive products and 11% for mbber products unrelated to the automotive industry. The automotive industry accounts for 79% of consumption. Pigment appHcations account for about 10% of consumption, most of this for plastics and printing inks. Western Europe consumes 74% in tires and other automotive products and almost 20% in other industrial mbber products. Pigment appHcations in Western Europe and Japan are 5—6% of consumption. 

Insofar as the consumption of chemicals is concerned, it is obvious that the total consumption of reflux-producing chemicals is proportional to the interstage flows, or width of the cascade, but independent of the number of stages in series, or length of the system. 

These benefits directly translate into lower costs and improved operating efficiency for rotating machinery. Lubrication is unnecessary. The bearing is operable in hostile environments and, in many cases, can operate in the process fluid at high pressures and temperatures. Experience shows that total consumption of frictional power is drastically reduced. 

One of the key factors which make plastics attractive for engineering applications is the possibility of property enhancement through fibre reinforcement. Composites produced in this way have enabled plastics to become acceptable in, for example, the demanding aerospace and automobile industries. Currently in the USA these industries utilise over 1(X),000 tonnes of reinforced plastics out of a total consumption of over one million tonnes. 

Total Consumption of Certain Metals in the United States in 1981... 

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