Asphalt vs. Coal Tar Pitch Roofing - BUILDINGS

Coal tar pitch was a by-product of processing coal to make coke, which in turn was used in making carbon steel and electrodes for the aluminum industry. Asphalt, a by-product of processing petroleum to make gasoline, fuel oil, and various hydrocarbon polymers, was also popular.

Read More

Coal Tar Pitch - Creosote Oil, Crude Naphthalene, Coal Tar ...

We manufacture a range of Coal Tar Pitch an essential consumable in the aluminium industry. Coal tars are complex and variable mixtures of phenols, polycyclic aromatic hydrocarbons and heterocyclic compounds. Continuous R&D efforts have enabled us to offer Coal Tar Pitch in a …

Read More

Pitch (resin) - Wikipedia

Pitch is a viscoelastic polymer which can be natural or manufactured, derived from petroleum, coal tar, or plants. Various forms of pitch may also be called tar, bitumen, or asphalt.Pitch produced from plants is also known as resin.Some products made from plant resin are also known as rosin

Read More

COAL-TAR PITCH, HIGH TEMPERATURE 65996-93-2 266 …

IUPAC Name: Coal Tar Pitch, High temperature 1.2 PURITY/IMPURITIES, ADDITIVES The content of the sixteen EPA PAHs in pitch used for impregnation and binding is presented in Table 1.1. Most relevant for the risk assessment is the composition for binder pitch, as it is the main source for the production of anodes and electrodes.

Read More

Pitch-based carbon fibers from coal tar or petroleum ...

72 Pitch-based carbon fibers from coal tar or petroleum residue under the same processing condition Jiyoung Kim1,2,♠, Ui-Su Im1,2, Byungrok Lee2, Dong-Hyun Peck1,2, Seong-Ho Yoon 3 and Doo-Hwan Jung1,2,♠ 1Advanced Energy and Technology, University of Science and Technology (UST), Daejeon 34113, Korea 2New and Renewable Energy Research Division, Korea Institute of Energy …

Read More

Coal Tar and Coal-Tar Pitch - Cancer-Causing Substances ...

Coal-tar pitch is a thick black liquid that remains after the distillation of coal tar. It is used as a base for coatings and paint, in roofing and paving, and as a binder in asphalt products. Both coal tar and coal-tar pitch contain many chemical compounds, including carcinogens such as benzene.

Read More

Calcined Petroleum Coke & Coal Tar Pitch - Rain Carbon Inc

Pitch Products . Pitch products are produced by Rain Carbon Inc. from coal tar pitch (CTP), a derivative of coal tar distillation, as well as from specialty petroleum feedstocks. CTP is mainly used as a binder for the production of carbon anodes essential for aluminum smelting.

Read More

Coal Tar - an overview | ScienceDirect Topics

Coal tar and petroleum pitches are used in both isotropic and anisotropic mesophase forms to commercially produce carbon fibers. Although the generic compositions of isotropic and anisotropic pitches used for production of carbon fibers might be expected to be quite different, the same basic pitches are used because of easy spinning and high carbon fiber strengths.

Read More

COAL TAR OIL, [HEAVY DISTILLATE] | CAMEO Chemicals | NOAA

A clear colorless to dark brownish colored liquid with an aromatic odor. Less volatile fraction separated from coal tar by distillation. Contains naphthalene, acenaphthene, methylnaphthalenes, fluorene, phenol, cresols, pyridine, picolines, among other substances. Flash point greater than 100° F. Toxic by inhalation and skin absorption.

Read More

Analysis of Petroleum and Coal Tar Pitches as Large PAH

coal tar pitches presenting quite similar physical properties in spite of a rather different chemical composition. The present work aims to analyse and compare the chemical features of quite different petroleum and coal tar pitches having also different physico …

Read More

Coal Tar Distillates | Koppers

Distillates are made up of crude coke oven tar components, which are produced during the high temperature coking of bituminous coal. Carbon pitch boils between 100°C and 400°C during the distillation process. Refined chemical oil distills between 210°C and 315°C.

Read More

Standard Test Method for Shear Viscosity of Coal-Tar and ...

1.1 This test method covers the determination of the apparent shear viscosity of coal-tar and petroleum-based pitches having a Mettler softening point (SP) range of approximately 95 °C to 120 °C (see Test Method D3104).

Read More

Structural characterization of coal-tar and petroleum pitches

Distribution and Structural Analysis of Polycyclic Aromatic Hydrocarbons Abundant in Coal Tar Pitch. Energy & Fuels 2017, 31 (5), 4694-4704. DOI: 10.1021/acs.energyfuels.6b03113. Mark C. Thies . Fractionation and Characterization of Carbonaceous Pitch Oligomers: Understanding the Building Blocks for Carbon Materials.

Read More

Products - Crowley Chemical Company Inc.

Coal Tar Pitch 110: A coal tar derivative that is a mixture of hydrocarbons and finely divided carbon used in refractory products and roofing. Coal Tar Pitch 120: A coal tar derivative that is a mixture of hydrocarbons and finely divided carbon used in refractory products and roofing. Petroleum Pitch: Complex mixture of numerous aromatic ...

Read More

COAL-TAR PITCH - Chemical Agents and Related Occupations ...

Coal-tar pitch and associated exposures were considered by previous IARC Working Groups in 1984, 1987, and 2005 (IARC, 1985, 1987, 2010). Since that time new data have become available, which have been incorporated in this Monograph, and taken into consideration in the present evaluation.

Read More

Production of Mesophase Pitch from Coal Tar and …

coal tar pitch7 and petroleum pitch1;2 3. Economically, isotropic pitches, such as coal tar or petroleum pitches appear to be the more promising group of carbon bre precursors since they are the cheapest starting materials. The rst step of producing carbon bre involves the removal of low molecular weight species (extrac-

Read More

Safety and Health Topics | Coal Tar Pitch Volatiles ...

Natural or mined asphalts do not fall within the scope of the Coal Tar Pitch Volatiles Standard. (May 26, 1983). Petroleum asphalt removed from coverage under the Coal Tar Pitch Volatiles Standard. (April 8, 1983). Applicability of the Coal Tar Pitch Volatiles Standard to dust of coal tar pitch…

Read More

Coal Tar Pitch – IspatGuru

Dec 26, 2018· Coal tar pitch contains a large number of substances. It is solid at room temperature and consists of a complex mixture of numerous polycyclic aromatic hydrocarbons (PAHs), their methyl and polymethyl derivatives, and heterocyclics, and shows a broad softening range instead of a defined melting temperature.

Read More

Investigation of Selected Potential Environmental ...

investigation of selected potential environmental contaminants: asphalt and coal tar pitch final report environmental protection agency office of toxic substances washington, d.c. …

Read More

Petroleum derivatives as an alternative to binder coal-tar ...

A suitable precur- sor pitch prepared by blending coal tar and petroleum pitches was modified by the addition of PC in propor- tions of 10, 20 and 30% by weight to the precursor pitch.

Read More

ChemIDplus - 68187-57-5 - Pitch, coal tar-petroleum ...

68187-57-5 - Pitch, coal tar-petroleum - Searchable synonyms, formulas, resource links, and other chemical information.

Read More

Developing Coal Tar/Petroleum Pitches | SpringerLink

This paper will discuss the rationale behind developing coal tar/petroleum binder pitches including the future of coal tar pitch supplies, the potential environmental advantages of coal tar/petroleum pitches, and commercial experience with coal tar/petroleum pitches.

Read More

Coal Tar Pitch - amincoresources.com

Coal tar pitch distilled from by-product coal tar, generated by metallurgical coke ovens, has strategic importance for the aluminum industry. The combination of its binding properties with its high carbon content makes pitch an ideal complement to calcined petroleum coke for the production of …

Read More

Tar Pitch - an overview | ScienceDirect Topics

Coal tar enamel (CTE) is a polymer-based coating produced from the plasticization of coal tar pitch, coal, and distillates. Inert fillers are added to provide the desired properties of the system. The coal tar pitch, which forms the basis for the enamel, consists of polynuclear aromatic hydrocarbons and heterocyclic compounds.

Read More

Petroleum Pitch | Koppers

Petroleum pitch is an alternative and supplement to coal tar pitch. The PAH level is up to 10 times lower then coal tar pitch without considerable lowering of the carbon content. Petroleum pitch is used for the production of refractory bricks, clay pigeons and as an impregnation pitch for graphite electrodes.

Read More

Pitch (resin) - Wikipedia

Coal tar was one of the first chemical substances proven to cause cancer from occupational exposure, during research in 1775 on the cause of chimney sweeps' carcinoma. Modern studies have shown that working with coal tar pitch, such as during the paving of roads or …

Read More

Coal Tar & Petroleum Pitches | Lone Star Specialities

Coal Tar & Petroleum Pitches. Pitch products are the primary materials produced through the distillation of coal tar and petroleum feedstocks, and are used as binders and for impregnation applications across a variety of industries. Lone Star's distillation technology allows us to offer a wide range of customer specifications, and our ...

Read More

COAL TAR PITCH, HIGH TEMPERATURE - Europa

creosote oil, anthracene oil, and creosote) and a solid fraction (coal tar pitch high temperature). When CTP(ht) is heated, Coal tar pitch volatiles (CTPV(ht)) are released. However, the term CTPV is not only used for volatiles released when coal tar pitch (CTP) is heated, but also for volatiles released when coal tar or it's products are heated.

Read More

Copyright ©2019 Company CGMilling All rights reserved. sitemap