Composition and processing

Special purpose and blended Portland cements are manufactured essentially by the same processes as ordinary Portland cements but have specific compositional and process differences. White cements are made from raw materials of very low iron content. This type is often difficult to bum because almost the entire Hquid phase must be furnished by calcium aluminates. As a consequence of the generally lower total Hquid-phase content, high burning-zone temperatures may be necessary. Past cooling and occasionally oil sprays are needed to maintain both quaHty and color. 

The choice of lubricant for a particular composition and process can be quite critical but beyond stating that such materials will normally be fluid at processing temperature and should have a solubility parameter at least 3 MPa different from the polymer, little further fundamental guidance can be given and selection is normally made by an empirical trial and error basis. 

The Nippon Steel Corporation in 1972 pioneered the use of continuous annealing lines , in which rolled steel sheet is heat-treated and quenched under close computerised control while moving. For this advanced process to give its best results, especially when the objective is to make readily shapable sheet for automobile bodies, steel compositions have to be tailored specifically for the process composition and processing are seamlessly tied to each other. Today, dozens of these huge processing lines are in use worldwide (Ohashi 1988). 

Alloy 600 Alloy 800 Water-cooled nuclear reactor circuits Usually IG 1. Control alloy composition and processing 2. Control water chemistry 3. Stress relieve after fabrication... 

A. (1986a). Preparation of liposomes via detergent removal from mixed micelles by dilution. The effect of bilayer composition and process parameters on liposome characteristics, Pharm. Weekbl. 

J. Plank. Drilling mud composition and process for reducing the filtrate of metal hydroxide mixtures containing drilling mud compositions. Patent WO 9312194, 1993. 

A. Savoly and D. P. Elko. Foaming agent composition and process. Patent WO 9516515,1995. 

Sturm ME, Goldstein SJ, Klein EM, Karson JA, Mnrrell MT (2000) Uranium-series age constraints on lavas from the axial valley of the Mid-Atlantic Ridge, MARK area. Earth Planet Sci Lett 181 61-70 Sun S, McDonongh WF (1989) Chemical and isotopic systematics of ocean basalts implications for mantle composition and processes. In Magmatism in the Ocean Basins. Saunders AD, Norry MJ (eds) Blackwell Scientific Pnbl. Oxford, p 313-345... 

Sun SS, McDonough WF (1989) Chemical and isotopic systematics of oceanic basalts implications for mantle composition and processes. In Magmatism in ocean basins. Saunders AD, Norry MJ (eds) Geol Soc Lond Spec Publ 42 313-345... 

Jordan, W.A. "Organo-Metallie Gel Producing Compositions and Processes for Preparing Organo Metallic Gels," US Patent 3,251,781(1966). 

Table 8.2 Product compositions and processing times for the second illustrative example...

O Brien B, Ryan G, Meaney WJ, McDonagh D and Kelly A (2002), Effect of frequency of milking on yield, composition and processing quality of milk Journal of Dairy Research, 69, 367-374. 

Davis, B. H. 2003. Fischer-Tropsch synthesis Relationship between iron catalyst composition and process variables. Catalysis Today 84 83-98. 

Gil MI, Tomas-Barberan FA, Hess-Pierce B, Holcroft DM and Kader AA. 2000. Antioxidant activity of pomegranate juice and its relationship with phenolic composition and processing. J Agric Food Chem 48(10) 4581 1589. 

Roos, J. A., S. J. Korf, J. J. P. Bicrmann, J. G. van Ommen and J. R. H. Ross. 1989. Oxidative coupling of methane, the effect of gas composition and process conditions. Proc. 2nd Europ. Workshop Meeting, New Developments in Selective Oxidation. Rimini, Italy. 

Grose, R.W. and Flanigen, E.M. (1981) Novel zeolite compositions and processes for preparing and using same US Patent 4,257,885. 

Breck, D.W. and Skeels, G.W. (1985) Silicon substimted zeolite compositions and process for preparing same US Patent 4,503,023. 

Uu, H.-C. (1985) Modified zeolite catalyst composition and process for alkylating toluene with methanol to form styrene. U.S. Patent 4, 499,318. 

Compositions and processing conditions are disclosed for the production by rotomoulding of polypropylene foams, hitherto satisfactorily produced only by injection... 

Patent Number US 5783611 A 19980721 COMPOSITION AND PROCESS FOR ROTATIONAL MOULDING FOAMED ARTICLES Strebel J J... 

Patent Number US 5801208 A 19980901 BLOWING AGENT, EXPANDABLE COMPOSITION, AND PROCESS FOR EXTRUDED THERMOPLASTIC FOAMS Shau-Tarng Lee Sealed Air Corp. 

Patent Number WO 9417133 A1 19940804 EXPANDABLE COMPOSITION AND PROCESS FOR PRODUCING EXTRUDED THERMOPLASTIC FOAM... 

Patent Number EP 585148 A1 19940302 ULTRA LOW DENSITY POLYOLEFIN FOAM HAVING A DENSITY OF ABOUT 0.6 TO 1.5 POUNDS PER CUBIC FOOT, FOAMABLE POLYOLEFIN COMPOSITIONS AND PROCESS FOR MAKING THE SAME Rogers J E Kisner R D Astro-Valcour Ine. 

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