Autoclave products

The experimental autoclave results are summarized in Table I and Figures 2 through 4. Autoclave product compositions are expressed in weight percent, assuming that one peroxide function per olefin unit is incorporated in the polymeric dialkyl peroxides (17, 19). 

There was no indication in the pharmacopeias until 1955 in the USP and until 1968 in the BP that the results of the Test should be or could be extended to apply to batches of product required to be certified as sterile. The USP initially required 10 units to be tested from each batch of autoclaved products and 20 units from each batch of other sterile products, the BP required 20 units. In the current pharmacopeias, the sample size for the Test for Sterility is 20 units in all but a few exceptional circumstances. 

Autoclave productivity/price High Approx. 30% lower than SWS... 

The crude autoclave product, after cooling, is dissolved in about an equal amount of water and filtered. It may be precipitated with acid and dried or purified in one of two ways before the precipitation. Contamination with iron must be avoided in these operations. 

Run N° Support treated by a aqueous solution of Membrane growth method Atmosphere in autoclave Product Film Powder Sbet,... 

No lithium-containing mordenites have been found in natural occurrences these are calcium, sodium mordenites with varying but small contents of potassium. The first probable synthesis of mordenite in 1927 by Leonard (10) was the autoclaved product of reacting sodium carbonate solution with spodumene. Although the product, identified tentatively as mordenite( ) was not analyzed, the results of our studies suggest that he synthesized a Na,Li-mordenite. 

The consequence of slow heat penetration is that the greater part of fluid load autoclave cycles is spent in bringing the load up to the exposure temperature and cooling it down again. For a particular autoclave, product, product container, and load configuration there is not much that can be done about the heat-up time. If the product is at all heal sensitive it is often practical to take account of the contribution made toward microbial lethality during heat-up as... 

Because hydrated calcium silicate is white, the autoclaved products are an attractive near-white colour. This enables pigments to be used to produce a wide range of coloured products. 

Consistency of lime quality is desirable for all calcium silicate processes. It helps to improve process control and to raise the quality and consistency of the autoclaved products. Thus, although the process can tolerate relatively low quality lime products, in practice, high quality products, which contain consistently low levels of impurities, are often favoured. 

The autoclaved product (Fig. 26.6) combines a controlled low density with adequate load-bearing capacity to meet many building applications. 

LLDPEs from tubular or cascade loop reactor have fewer LCB and broader MWD than autoclave products. Modeling of an industrial slurry-phase olefin catalytic polymerization of two loop reactors in series was carried out by U. Thessaloniki and Total Petrochemicals... 

Fig. 1. Long-chain branching in fractions with 200,000 from polyethylenes with melt index 1.7 and density 0.918-0.919 g/cm (a) autoclave product with 20 long branches (b) tubular product with 7 long branches. Short-chain branches are not shown.

A 5%-soln. of the startg. olefinic benzocyclobutene deriv. in toluene heated 16 hrs. at 190° in an autoclave -> product. Y 85%. F. e., also addition to carbon-carbon triple bonds, stereo- and regio-specificity, s. W. Oppolzer and K. Keller, Am. Soc. 95, 3833-3836 (1971). 

In the manufacture of autoclave products, cement, lime, or both, and silica-bearing materials form the raw mix. Various hydration products are identified when cement or calcium silicate is autoclaved. The compounds include C-S-H gel, a-C2SH, tricalcium silicate hydrate, CH, C3AHg, and a modified form of 7-C2S hydrate. In the cement-aggregate system,products that may form are C-S-H(I), C-S-H(II), 11 Atobermorite,... 

The autoclaved products were examined using a scanning electron microscope (SEM), X-ray powder diffraction (XRD) and mercury pressure porosimeter. Also, the compressive strengths of the products were tested. 

ACI Committee 515, High pressure steam curing, modern practice and properties of autoclaved products, J. Amen Concr. Inst 62,1965, 869-908. 

---