Coal Tar Pitch Process Roofing Diagram

  • Petroleum, Coal Tar, and Related Products - Niemeier ...

    The coal dust particles mixed in with coal tar pitch volatiles are not soluble in benzene, but almost all of the petroleum‐derived materials admixed with PNAs/PAHs are soluble in benzene. Some of the highest measured levels of coal tar pitch volatiles (CTPV) have occurred in the aluminum reduction industry, especially in the Soderberg process ...

    Get Price
  • US3953628A - Process for making pitch impregnated articles ...

    Disclosed is a pitch impregnant composition comprising coal tar pitch, oxidized, or unoxidized petroleum pitch with stearic acid, and particulated metallic pigments including copper, aluminum, steel, silver, iron, tin, nickel and zinc metals and copper-zinc alloys. The process comprises forcing the molten impregnant composition into the surface of the porous article preferably by imposing ...

    Get Price
  • The Rundown on Low-Slope Roofing | Buildings

    Mar 01, 2009· The roofing plies were organic (rag) felts. Coal-tar pitch roofs were called “self-healing roofs” due to coal tar’s tendency to flow when hot (good, because it flows and seals cracks; bad, because it flows and clogs drains, causes stains on buildings, and, in …

    Get Price
  • Roof SURVEY AND REPORT - Centennial School District

    Roof area 2 is approximately 6,662 square feet in size and consists of a metal deck, 2” of fiberboard insulation, 4 ply coal tar pitch, stone, 30# felt, base sheet and a modified cap sheet. Metal Deck Cross Section of Roof Area 2 2" Fiberboard Insulation 4 ply Coal Tar Built-up Roof Gravel 1 ply Modified Membrane w/ Aluminized Coating Base ...

    Get Price
  • Asphalt | Commercial Roof Systems

    Coal Tar Pitch is a known carcinogen, forbidden by code in some areas. When installing and patching existing coal tar roofs, worker and building occupant exposure should be avoided, or minimized to the maximum extent possible. Coal Tar fumes are hazardous and provisions must be made during application to prevent fumes from getting into the ...

    Get Price
  • Chemical and physical modification of petroleum, coal-tar ...

    van Krevelen diagrams indicated that the coal-extract, petroleum, and coal-tar pitch each followed different mechanisms during the course of air blowing, emphasizing that compositional details must be considered in describing reaction details.

    Get Price
  • Coal Tar Pitch - Bhilai Cement

    For this reason, coal tar pitch is also often referred to as "carbon pitch" or "binder pitch." Additional synonyms for coal tar pitch include "roofing pitch" because of its use in the roofing industry and "target pitch" because of its use in the manufacture of clay targets.

    Get Price
  • SBS Modified Bitumen Specifications

    heat welded. PermaMop, coal tar pitch and coal tar asphalt are not permitted. 7.2 Asphalt can come from a variety of crude sources. Many of these sources produce high-quality mopping grade asphalts and many do not. Various physical properties of asphalts can affect the performance of the roofing system. For this reason, JM qualifies

    Get Price
  • Coal-Tar Pitch - an overview | ScienceDirect Topics

    C.G. Cash, in Encyclopedia of Materials: Science and Technology, 2001 2.9 Coal-tar Pitch Built-up Roofing. Coal-tar pitch membranes using coal-tar saturated organic felts is one of the oldest systems listed in Table 2.These systems perform very well historically, but are limited to very low slope applications and must be gravel surfaced because of the low viscosity of coal-tar pitch at normal ...

    Get Price
  • Noah's pitch process - DTX Technologies LLC

    A process for producing pitch from pitch precursors, such as wood tar, coal tar or petroleum fractions is disclosed. Direct contact heat exchange of the pitch precursor with molten metal, preferably maintained as a metal continuous bath, heats the pitch precursor to a temperature sufficient to induce thermal polymerization reactions and produce a pitch product.

    Get Price
  • OCCUPATIONAL EXPOSURES DURING COAL-TAR DISTILLATION

    1987, 2010) coal-tar pitch and roofing-tar emis-sions were found to be mutagenic in Salmonella typhimurium (in the presence of an exogenous metabolic activation system) and in two mamma - lian cell systems (in the presence and absence of an exogenous metabolic activation system). Coal-tar pitch and roofing-tar emissions induced

    Get Price
  • How is Crude Coal Tar Derived 1

    The coal-to-coke transformation takes place as follows: The heat is transferred from the heated brick walls into the coal charge. From about 375°C to 475°C, the coal decomposes to form plastic layers near each wall. At about 475°C to 600°C, there is a marked evolution of tar, and aromatic

    Get Price
  • Coal Tar and its Distillation Processes – IspatGuru

    Dec 26, 2018· The process of distillation gives a variety of valuable chemical products. The residue of distillation is coal tar pitch, which is further processed into coal tar pitch of desired chemical and physical properties. The primary objective of coal tar distillation process is to produce a number of tar acid products from the crude tar.

    Get Price
  • (PDF) Methods for the preparation of coal-tar pitch

    The production of tar pitches and binding agents for the manufacture of high-quality carbon materials is considered. The progressive scarcity of coal-tar pitch is noted.

    Get Price
  • Coal tar - Wikipedia

    Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. It has both medical and industrial uses. Medicinally it is a topical medication applied to skin to treat psoriasis and seborrheic dermatitis (dandruff). It may be used in combination with ultraviolet light therapy. Industrially it is a railway tie preservative and used in the surfacing of roads.

    Get Price
  • Coal Tar - Cargo Handbook - the world's largest cargo ...

    The residual pitch left from the fractional distillation is used for paving, roofing, waterproofing, and insulation. Coal Tar Products Coal, like oil, is chemically a complex substance but unlike oil, it is somewhat deficient in hydrogen and rich in carbon.

    Get Price
  • Flow diagram of coal to coal-tar-pitch process

    Flow diagram of coal to coal-tar-pitch process (Public domain.) Thumbnail Medium Original. Detailed Description. Coal tar is a byproduct of the coking, liquefaction, or gasification of coal. Coal-tar pitch is the residue that remains after the distillation of coal tar. Coal tar and coal-tar pitch are used in coal-tar-based sealcoat products ...

    Get Price
  • - 1 - Coal Tar Pitch – Its Past, Present and Future in ...

    Coal tar pitch has been used as the base media for coatings and adhesives for many years, including roofing bitumen. Built-up commercial coal tar pitch roofing has historically provided long lasting and sustainable protection for the building envelope. The inherent waterproof nature of coal tar pitch provides a tight waterproof roof construction.

    Get Price
  • Right to Know Hazardous Substance Fact Sheet

    Coal Tar Pitch is a dark brown to black, thick liquid, with a strong odor, 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. POISONOUS GASES ARE PRODUCED IN FIRE Reasons for Citation ... f Label process …

    Get Price
  • 400 Old Reading Pike, Suite 304 www.durapax.com Coal Tar ...

    Coal Tar Roofing and Waterproofing Pitch Canned Pitch CP-0450 Bulk Pitch BP-4050 Description Durapax Coal Tar Roofing and Waterproofing Pitches are derived from base tars extracted from bituminous coal during the coking process. A variety of feedstocks are then blended and distilled to achieve the proper specification,

    Get Price
  • Roofing Terms | Roofing Terminology | Roofing Above All

    Coal Tar Felt A roofing membrane saturated with refined coal tar. Coal Tar Pitch A type of coal tar used in dead-level or low-slope built-up roofs. It is not for use in roofs exceeding ¼” in 12″ (2%) slope. Coal Tar Roof Cement A trowelable mixture of processed coal tar base, solvents, mineral fillers and/or fibers. Coarse Orange Peel ...

    Get Price
  • Coal Tar Pitch Roofing: Reference Page — Roof Online

    Click Here to See More Roofing Topics. More Pictures: Telltale Signs of a Coal Tar Pitch Roof. Basic Information: Coal Tar Pitch Roofing is a type of built-up roofing in which coal tar pitch forms the waterproofing component of the roof membrane. Coal tar pitch is produced by distilling or heat-treating coal tar, which is a by-product of the production of coke or coal gas.

    Get Price
  • A Guide to Asphalt and Coal Tar Pitch Roofing - Infinity ...

    Apr 08, 2019· Coal Tar Pitch Roofing. The older of the two variants, coal tar pitch roofing, is made of a gravel pile combined with roofing-grade coal tar. This type of roofing has exceptional water resistance, making it a very popular option for roof …

    Get Price
  • 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.

    Get Price
  • CBD-211. Bituminous Roofing Membranes: Practical ...

    For coal tar pitch an application temperature of 190°C is generally recommended with a minimum of 165°C acceptable, depending on site conditions. As coal tar pitch is 23% heavier than asphalt, its application should be 1.25 kg/m². Felts. Two types of felt, saturated felts and coated sheets, are generally used in built-up membranes.

    Get Price
  • Roofing Systems | WBDG - Whole Building Design Guide

    coal tar pitch process roofing diagram. coal tar pitch process roofing diagram chemicals used in the coal industry bethsda mining is a midsized coal mining company with 20 mines located in ohio Contact Supplier Coal Tar Crude Oil Diagram - aligarhadminin How is...

    Get Price
  • Product Stewardship Summary Coal Tar Pitch

    Coal Tar Pitch (CAS number 65996-93-2) (EC number 266-028-2) Product Description Coal tar pitch is a black, viscous residue that remains after the distillation of coal tar. This process occurs at our plants and involves heating coal tar (the raw material used to produce coal tar pitch) in a still. As the

    Get Price
  • Products | IronShore Contracting

    Coal Tar Pitch & Built-Up Roofs Coal tar pitch roofing systems are used on level or low sloped roofs and ideal for roofs that are expected to hold water. Cold Process Roof Systems Monolithic seamless membrane bonded to base plys and surfaced with UV protective materials. Architectural and structural standing seam metal roofing

    Get Price
  • A Guide to Asphalt and Coal Tar Pitch Roofing - Infinity ...

    Apr 08, 2019· Coal Tar Pitch Roofing. The older of the two variants, coal tar pitch roofing, is made of a gravel pile combined with roofing-grade coal tar. This type of roofing has exceptional water resistance, making it a very popular option for roof designs that are almost completely flat.

    Get Price
  • Coal Tar Pitch on sales - Quality Coal Tar Pitch supplier

    Coal Tar Pitch, You can Buy good quality Coal Tar Pitch , we are Coal Tar Pitch distributor & Coal Tar Pitch manufacturer from China market. ... (CTP) is commonly used in the aluminium smetling and roofing industries. Coal tar pitch is an amorphous residue produced ... Read More. 2018-05-22 13:50:38. CAS NO.65996-93-2 Coal Tar Pitch Black Solid ...

    Get Price