Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Disintegration material

In trials with wood since 1910, several researchers did notice pyrolytic heat release, but others found the reaction endothermic. The contradictions can be explained with different sizes of the samples. It is believed that primary pyrolysis volatiles interact in secondary, exothermic reactions catalyzed by the solid residue. Long residence times of the volatiles in the disintegrating material favor secondary reactions, of course. Residence times are indeed long in large and in slowly disintegrating samples, in which the volatiles have a long path to the surface and migrate out slowly. [Pg.434]

Whether the conservator is performing a simple or complex consolidation, an intimate bond must be established with the disintegrated material. Penetration or introduction of the consolidant into the disintegrated fabric should theoretically occur to a predetermined level of decomposition (incipient, moderate, heavy). The conservator is concerned with three sets of properties liquid phase, transitional phase, and solid phase. Table I indicates the particular concerns for the three phases. [Pg.330]

The above-discussed synthesis of reversed micellar templates is based on employing low-concentration emulsions, in which water forms a discrete phase while styrene and DVB form a continuous phase. Water droplets remain separated from each other and only form cavities on the outer surface of the disintegrated material. Only when the volume concentration of water is as high as 74% will its droplets start to be tangential to one another and lose their spherical form. Interestingly, the viscosity of such... [Pg.123]

The Vepex process developed in Hungary (Table 9) involves disintegration of plant materials followed by double screw pressing to maximize juice production. Green chloroplastic protein is removed by direct steam-injection heat treatment at 82°C with the addition of flocculents and centrifugation. The white protein fraction is separated from the chlorophyU-free process juice by direct steam injection at 80°C, followed by centrifugation and drying (94). [Pg.469]

It is classification by contacting method that provides the two principal categories into which leaching equipment is divided (I) that in which the leaching is accomphshed oy percolation and (2) that in which particulate solids are dispersed into a hquid and subsequently separated from it. Each includes batch and continuous units. Materials which disintegrate during leaching are treated in equipment of the second class. [Pg.1673]

To supply back pressure , which aids in impeding the entrance of abrasive and corrosive material into the stufhng box. Abrasives and corrosives will damage the shaft or sleeve, and disintegrate the paeking. [Pg.177]

Ammonium Nitrate Plant 7. Prill lower reduce microprill formation and reduce carryover of fines through entrainment. 8. Materials handling where feasible use covers and hoods on conveyors and transition points. Good cleanup practices must be in place to minimize contamination of stormwater mnoff from the plant property. 9. Granulators reduce dust emissions from the disintegration of granules. [Pg.68]


See other pages where Disintegration material is mentioned: [Pg.502]    [Pg.244]    [Pg.349]    [Pg.117]    [Pg.231]    [Pg.536]    [Pg.432]    [Pg.184]    [Pg.298]    [Pg.119]    [Pg.295]    [Pg.65]    [Pg.502]    [Pg.244]    [Pg.349]    [Pg.117]    [Pg.231]    [Pg.536]    [Pg.432]    [Pg.184]    [Pg.298]    [Pg.119]    [Pg.295]    [Pg.65]    [Pg.9]    [Pg.9]    [Pg.333]    [Pg.2842]    [Pg.222]    [Pg.1]    [Pg.241]    [Pg.572]    [Pg.165]    [Pg.228]    [Pg.11]    [Pg.472]    [Pg.161]    [Pg.329]    [Pg.331]    [Pg.474]    [Pg.405]    [Pg.1225]    [Pg.1226]    [Pg.1229]    [Pg.1569]    [Pg.1588]    [Pg.1833]    [Pg.1834]    [Pg.1847]    [Pg.1859]    [Pg.1868]    [Pg.1878]    [Pg.2173]    [Pg.161]    [Pg.100]    [Pg.371]   
See also in sourсe #XX -- [ Pg.231 ]




SEARCH



Disintegrants

Disintegrates

Disintegration

Disintegrator

© 2024 chempedia.info