• Coal tar Wikipedia
    OverviewSafetyUsesMechanism of actionCompositionDerivativesSociety and cultureSee also

    Side effects of coal tar products include skin irritation, sun sensitivity, allergic reactions, and skin discoloration. It is unclear if use during pregnancy is safe for the baby and use during breastfeeding is not typically recommended. According to the National Psoriasis Foundation, coal tar is a valuable, safe and inexpensive treatment option for millions of people with psoriasis and other scalp or skin conditions. According to the FDA, coal

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  • Destructive distillation Wikipedia
    OverviewApplicationsProcessSee alsoExternal links

    • Destructive distillation of wood produces hundreds of compounds including tar, terpenes, turpentine and methanol together with a solid residue of charcoal. • Destructive distillation of a tonne of coal can produce 700 kg of coke, 100 liters of liquor ammonia, 50 liters of coal tar and 400 m of coal gas.

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  • Tar Wikipedia

    Tar is a dark brown or black viscous liquid of hydrocarbons and free carbon, obtained from a wide variety of organic materials through destructive distillation.Tar can be produced from coal, wood, petroleum, or peat.. Mineral products resembling tar can be produced from fossil hydrocarbons, such as petroleum. Coal tar is produced from coal as a byproduct of coke production.

  • Creosote Wikipedia

    Creosote is a category of carbonaceous chemicals formed by the distillation of various tars and pyrolysis of plant-derived material, such as wood or fossil fuel. They are typically used as preservatives or antiseptics. Some creosote types were used historically as a treatment for components of seagoing and outdoor wood structures to prevent rot (e.g., bridgework and railroad ties, see image).

  • Keroselene Wikipedia

    Keroselene is a highly volatile derivative during the steam distillation of coal-tar. It was discovered in 1861 by Joshua Merrill. It has been used as a local anaesthetic. References

  • Coal Tar and its Distillation Processes IspatGuru

    Dec 26, 2018· Anthracene, Cresol, Crude tar, Dehydration, HBTA, Hydrocarbons, Phenol, tar, tar distillation, Coal Tar and its Distillation Processes. Coal tar, also known as crude tar, is the by-product generated during the high temperature carbonizing of coking coal for the production of the metallurgical coke in the by-product coke ovens.

  • Coal oil Wikipedia

    Coal oil is a shale oil obtained from the destructive distillation of cannel coal, mineral wax, or bituminous shale, once used widely for illumination.. Chemically similar to the more refined, petroleum-derived kerosene, it consists mainly of several hydrocarbons of the alkane series, with 10 to 16 carbon atoms in each molecule, with a boiling point of 175°C to 325°C, higher than gasoline or

  • coal tar Wiktionary

    A black, viscous tar made by the destructive distillation of coal (to make coke and town gas); it contains a great number of compounds including hydrocarbons and phenols; used in the preparation of medicated soap and shampoo, and industrially for the manufacture of very many products. 1989, Alain Chauvel, Gilles Lefebvre, Petrochemical Processes: Major

  • Dry distillation Wikipedia

    Dry distillation is the heating of solid materials to produce gaseous products (which may condense into liquids or solids). The method may involve pyrolysis or thermolysis, or it may not (for instance, a simple mixture of ice and glass could be separated without breaking any chemical bonds, but organic matter contains a greater diversity of molecules, some of which are likely to break).

  • Wright's Coal Tar Soap Wikipedia

    For over 150 years, Wright’s Coal Tar Soap was and still is a popular brand of household soap; its successor can still be bought in supermarkets and from chemists worldwide. It was developed by William Valentine Wright in 1860 from "liquor carbonis detergens", the liquid by-product of the distillation of coal to make coke; the liquid was made

  • Coal oil Wikipedia

    Coal oil is a shale oil obtained from the destructive distillation of cannel coal, mineral wax, or bituminous shale, once used widely for illumination.. Chemically similar to the more refined, petroleum-derived kerosene, it consists mainly of several hydrocarbons of the alkane series, with 10 to 16 carbon atoms in each molecule, with a boiling point of 175°C to 325°C, higher than gasoline or

  • Dry distillation Wikipedia

    Dry distillation is the heating of solid materials to produce gaseous products (which may condense into liquids or solids). The method may involve pyrolysis or thermolysis, or it may not (for instance, a simple mixture of ice and glass could be separated without breaking any chemical bonds, but organic matter contains a greater diversity of molecules, some of which are likely to break).

  • coal tar Wiktionary

    A black, viscous tar made by the destructive distillation of coal (to make coke and town gas); it contains a great number of compounds including hydrocarbons and phenols; used in the preparation of medicated soap and shampoo, and industrially for the manufacture of very many products. 1989, Alain Chauvel, Gilles Lefebvre, Petrochemical Processes: Major

  • Coal Tar Refining Co

    Coal Tar Refining Company (CTR) has established in 1997 with 100,000 MT annual production capacity. The company’s operations focus in refining and distillation of Coal Tar in order to producing valuable chemical derivatives. CTR is the greatest Coal Tar Refining Company in Middle East and the most modern technology is applied by our refinery.

  • Tar Simple English Wikipedia, the free encyclopedia

    Tar is a sticky black liquid made of thick oil.It is a natural substance, oozing out of the ground in places like the La Brea tar pits.Usually it is made by heating coal inside a chemical apparatus.. Most tar is produced from coal as a byproduct of coke production, but it can also be produced from petroleum, peat or wood.The "destructive distillation" of a ton of coal can produce 700 kg of

  • What is destructive distillation of coal? Quora

    May 26, 2017· Destructive Distillation of Coal When coal is heated without air, it does not burn but produces many by-products. This process of heating coal in the absence of air is called destructive distillation of coal. The main by products are: * coke * coa...

  • Coal tar — Wikipedia Republished // WIKI 2

    Coal tar causes increased sensitivity to sunlight, so skin treated with topical coal tar preparations should be protected from sunlight. The residue from the distillation of high-temperature coal tar, primarily a complex mixture of three or more membered condensed ring aromatic hydrocarbons,was listed on 28 October 2008 as a substance of very

  • Coal Tars and their distillates Canada.ca

    Coal tar distillates are derived from the distillation of coal tars at coal tar refinery facilities. They are made of complex combinations of compounds, mainly aromatic hydrocarbons. Their composition varies based on their source, the heating temperature, and the distillation temperature for the distillates.

  • Coal Tar and Coal Gas: Uses, Properties, Videos and Concepts

    Coal gas is a mixture of gases i.e. hydrogen, methane, carbon monoxide and volatile hydrocarbons procured by the destructive distillation of coal. It is a flammable gas and is made from coal which supplied via a piped system and is obtained from coal in the

  • Coal tar WikiMili, The Free Encyclopedia

    Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. [2] [3] It has both medical and industrial uses. [2] [4] It may be applied to the affected area to treat psoriasis and seborrheic dermatitis (dandruff). [5] It may be used in combination with ultraviolet light therapy. [5] Industrially it is a railway tie preservative and used in the

  • OCCUPATIONAL EXPOSURES DURING COAL-TAR DISTILLATION

    Occupational exposures during coal-tar distillation were considered by a previous Working Group in 2005 (IARC, 2010). Since that time new data have become available, which have been incorporated in this Monograph, and taken into consideration in the present evaluation.

  • 1911 Encyclopædia Britannica/Coal-Tar Wikisource, the

    Nov 26, 2016· Dehydration.—The first operation in coal-tar distilling is the removal of the mechanically enclosed water. Some water is chemically combined with the bases, phenols, &c., and this, of course, cannot be removed by mechanical means, but splits off only during the distillation itself, when a certain temperature has been reached.

  • Epsilon Carbon

    Epsilon Carbon produces world class coal tar derivatives designed for the global market using environment friendly and energy efficient processes. Our Products Works Vision To become a market leader & trusted provider of a range of innovative, high quality carbon products. Mission We Support global industries with an assured supply

  • SCI LECTURE PAPERS SERIES A HISTORY OF TAR

    Historical development of the tar industry Coal-tar, as the name suggests, is a by-product from the process of heating coal to produce gas and coke. The tar and ammoniacal liquor condense from the gas stream. Coal is of vegetable origin. Bitumen 'the other black stuff' is the residue from the distillation of crude oil, which is

  • 1911 Encyclopædia Britannica/Coal-Tar Wikisource, the

    Nov 26, 2016· Dehydration.—The first operation in coal-tar distilling is the removal of the mechanically enclosed water. Some water is chemically combined with the bases, phenols, &c., and this, of course, cannot be removed by mechanical means, but splits off only during the distillation itself, when a certain temperature has been reached.

  • Epsilon Carbon

    Epsilon Carbon produces world class coal tar derivatives designed for the global market using environment friendly and energy efficient processes. Our Products Works Vision To become a market leader & trusted provider of a range of innovative, high quality carbon products. Mission We Support global industries with an assured supply

  • SCI LECTURE PAPERS SERIES A HISTORY OF TAR

    Historical development of the tar industry Coal-tar, as the name suggests, is a by-product from the process of heating coal to produce gas and coke. The tar and ammoniacal liquor condense from the gas stream. Coal is of vegetable origin. Bitumen 'the other black stuff' is the residue from the distillation of crude oil, which is

  • Coal Tar crude, oil, acid, creosote, distillation

    These coal tar "crudes," including the benzols, toluols, solvent naphtha, heavy naphtha, cresylic acid, creosote, heavy bases, anthracene oil and pitch, form the various "fractions," or can be easily pre pared from these fractions, when the tar is distilled. Distillation.

  • Distillation of Coal Tar YouTube

    Mar 11, 2013· Distillation of Coal Tar As coal contains mainly carbon, the slow process of conversion of dead vegetation into coal is called carbonization. We get coal deep in the earth crust in coal mines. It

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  • PPT COAL TAR DISTILLATION PowerPoint presentation free

    Title: COAL TAR DISTILLATION 1 COAL TAR DISTILLATION 2 INTRODUCTION Feedstocks, Outputs General Mass Balance 2 3 INTRODUCTION Coal Tar Distillation within the Global Market Coal Tar Distillation. Downstream markets are the driving force ; Upstream market need to be monitored to check feedstock availability

  • US2748063A Distillation of coal tar Google Patents

    US2748063A US315898A US31589852A US2748063A US 2748063 A US2748063 A US 2748063A US 315898 A US315898 A US 315898A US 31589852 A US31589852 A US 31589852A US 2748063 A US2748063 A US 2748063A Authority US United States Prior art keywords stage tar naphthalene vapors solvent Prior art date 1952-10-21 Legal status (The legal status is an assumption and is not a legal

  • Fractional Distillation In The Coal Tar Industry

    Coal tar is essentially the thick viscous liquid which is obtained by the carbonisation of coal, and is a by-product in the ordinary manufacture of coal gas. It should be differentiated from all the other forms of tar. When coal is submitted to dry distillation in horizontal or vertical retorts, the products of carbonisation are gas, ammoniacal

  • Coal Tar Distillation Wiki entdeck-costarica.de

    Coal Tar Distillation Wiki. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. And they are mainly used to crush coarse minerals like gold and copper ore, metals like steel

  • 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. How are people exposed to coal tar and coal-tar

  • China Coal Tar Industry Report 2019-2025

    Feb 26, 2019· Segment: of China's coal tar products, over 70% are high-temperature coal tar, a by-product from coke production. High-temperature coal tar

  • What is the difference between coal tar and bitumen Answers

    tar obtained by destructive distillation of coal,it is less viscous as it is boiled with volatile fluids like kerosene bitumen obtained by fractional distillation of crude oil,has more

  • Crude Coal Tar Information; Why it is Recommended

    Crude coal tar is obtained by the destructive distillation of bituminous coal at very high temperatures. It is believed that over 10,000 different compounds make up coal tar but only a few hundred have been identified. The main groups of compounds making up crude coal tar

  • Full text of "Distillation of coal tar" Internet Archive

    Full text of "Distillation of coal tar" See other formats iliinois institute of Tecimoiogy UNWERSJTV LIBRARIES AT 125 Wilsnack, G. C. Distillation of coal tar For Use In Ll^jranf Only :'jsiws«*ifcasa55*i il» A THESIS Presented by G. C. riLSNACK AND S. E. LUNAK To The PRESIDENT AND FACULTY OP ARMOUR INSTITUTE OF TECHNOLOGY For the Degree of Bachelor of Science in Chemical