Secondary fines

Under the assumption that the gaseous sulfur, fine particle selenium and secondary fine particle sulfur measured at an ambient site originates from a single point source the tracer hybrid receptor model can be expressed in terms of the two equations... 

The secondary fine-crystal and amorphons qnartz material is deposited around living fine roots of trees, forming silicon powder as the spots, nets or bunch at the depth of 20-80-100 cm (Fignre 37)... 

The crushed ROK lime is then fed to a multi-deck screen, which produces a secondary fines fraction (e.g. less than 5 mm), granular, and pebble , lime fractions (e.g. 5 to 15 mm and 15 to 45 mm). Oversize lumps (e.g., greater than... 

ROK lime from most shaft kilns is too coarse for most customers and requires to be crushed and screened as described in section 17.1.2. The secondary fines (typically 5 to 10 % of ROK lime), have a similar chemical analysis and reactivity to the coarser fractions. Some producers use them to sweeten the primary fines. 

Generally, the best outlets for both primary and secondary fines are as a feed to ground lime and hydrating plants. They have also been used as a source of calcium oxide in dry process cement plants, where their use resulted in a significant reduction in heat requirements [17.1]. 

Outside this duplex film there is a porous zone where the following components are observed primary—coarse and secondary— fine crystalline CatOH), C-S-H particles and hydrated cement grains the latter ones are present often in the forms... 

Apart from the fibers, the pulp contains a fraction of much smaller material, called the fines fraction. Different definitions of fines exist. For practical reasons, fines would be defined as all the particles smaller than 200 gm. The primary fines in the pulp are made up of ray cells, smaller pieces of broken fibers and thin parts of the fiber surface. Refining of the pulp creates secondary fines. The mechanical pulping method produces a large amount of fines. 

Antipov-Karatajew, I. N., and I. G. Tsyurupa, 1964. Problem concerning the zonality of rock weathering and the formation of secondary finely dispersed minerals. Pochvovedeniye 924-930. 

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