Clinker


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clinker

the ash and partially fused residues from a coal-fired furnace or fire

Clinker

 

the solid, sintered residue obtained after subjecting certain by-products of metallurgical production (for example, cakes, zinc-retort residues, or slags) and other zinc-containing products to the Waelz process.

The composition of the clinker depends on the composition of the original raw material. For example, clinker obtained by subjecting zinc cakes to the Waelz process contains 2.5–3 percent zinc, 1–3 percent lead, 1–3 percent copper, 10 g per ton gold, about 50 g per ton silver, 35–40 percent iron, and 20–30 percent carbon; the balance contains SiO2, CaO, and several other oxides. Clinker is an intermediate product of zinc manufacture. In copper or lead manufacture, copper, lead, and other valuable component elements are extracted by subsequent pyrometallurgical treatments. To separate copper concentrated in the magnetic clinker fraction, it is sometimes advisable to pulverize the clinker and to follow this step with magnetic separation.


Clinker

 

clay articles, usually brick-shaped, that are fired until they are completely sintered.

Clinker, made of highly plastic clays, is grouped with the stone-ceramic materials. It is used in paving highways, in facing hydraulic engineering structures, socles, and the facades of buildings, and in lining reservoirs in chemical manufacturing. The technology of clinkering is analogous to that of brick manufacture. A semifinished product of cement production that consists of a sintered mixture of limestone and clay (or slag) is also called clinker.

clinker

[′kliŋ·kər]
(geology)
Burnt or vitrified stony material, as ejected by a volcano or formed in a furnace.
(materials)
An overburned brick.

clinker

1. A partially fused product of a kiln, which is ground for use in cement; also called cement clinker.
2. A vitrified or partially vitrified residue of coal which has been burnt in a furnace; used as an aggregate in cinder block.
References in periodicals archive ?
Currently, the capacity is estimated at 200,000 MT clinker per year and 140,000 MT cement per year.
CW Research's leading role in the global cement and clinker sector forms the underpinning for the monthly price assessment.
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The $360 million greenfield plant has implemented the most advanced technology in cement and clinker manufacturing and is in strict adherence with international environmental standards," said the media statement.
Although there are a number of studies on using spent oil shale ash as an additive or partial replacement to Portland cement in the making of concrete, little information was available on utilizing the oil shale itself in the production of Portland clinker as an energy source for the clinkering process, and as a raw material to make up the cement clinker.
Oman Cement's new clinker line has provided much needed support to meet the expected demand in the country, while the increased level of government spending along with the implementationof key projects are expected tolead to further improvement in demand for cement in the coming quarters, Ahmed added.
The "Ciment de Bizerte" company, which has not been privatised like the majority of other Tunisian cement plants, produces 900 thousand tons of clinker per year.
El-Nahda's plant, built by China's TCDRI, has a nominal output of 5,500 tons of clinker per day and is scheduled to go into production in the third quarter of this year.
According to the Union of Turkish Cement Producers, Turkey's exports of clinker dropped by 29.
The Expedition of Humphry Clinker (1771), the last novel of Tobias Smollett (1727-1771), combines the travelogue with the epistolary form to explore the issue of Scottish nationalism.