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Show 1 NEW PLANT AT GAS WORKS IS B l Oil Used for Flotation Process in Milling Ores Is to Be Turned j Out in Ogden Works Creosote to Be Manufactured H Carbolic Oil From Tar Base for Iron Paint and i N Roofing Pitch New Industry. H Next to the metal industry, no j branch of trade has felt the effects of Hj the war more than that which depends H upon coal tar as a raw material. Most H tar products, particularly the more i refined ones, have advanced far be- H yond expectation, some as high as H 2000 per cent over their cost before H the war. Hj Printers' ink, for Instance, has ad- H vanced from $60 per barrel to $1200 M per barrel. Some of the dye stuffs T cannot be had at any price, which is 1 also true of many substances used In j medicine. H Formation of Tar. H Tar is formed when any ca'rbonace- i ous substance containing hydrogen ' and nitrogen, such as coal, wood, i straw, etc., is distilled in a closed H vessel without the access of air. 1 When wood is distilled In the-manu- M facture of charcoal, tar is formed out H of which many substances are made, H such as liquid smoke for preserving j and flavoring meats, and pitch which M is used in the leather and its allied M industries, and also forms the base M of many paints and varnishes. m producing gas, principally, but ac- H companying it is also a certain amount H of coke and tar. In other words, coke H bears the same relation to coal as H charcoal does to wood. Charcoal Is m coke made from wood, while icoke is m made from coal. The tar made from m coal resembles the tar made from m wood, with the exception that it is H very much more complex, j The early promoters of gas business m treated tar more or less as a neces- M sary evil, and as a result, tons of it m have been allowed to flow into rivers M and bays to be lost absolutely to those H interested. But since the discovery m that It contained thousands of valu- m able products, such as medicines, wood H preservative, disinfectants, aniline H dyes and high explosives, much care m hns been exercised to present all tar H made. M At the Ogden gas plant of the Utah m Power & Light company, a new still m is in progress of construction, which H will embody the latest principles of m tar distillation. It consists of two H horizontal stills of the German type, H six Inches in diameter and with a ca- pacity of 2400 gallons. One Bhell is H composod of sheet steel, one Inch in H' I u, es, and the other Is -cast Iron H Si? Yn,lls tW0 inches in thickness, fl C t i s are ent!coly encased In Hi n rlnSfk ? lB W With 1 a recording thermometer ,whic& reg- m istera the temperature throughout the ' whole process. ' The 'oUwIng products are now be- M, ing made at the Ogden gas plant: H Creosote. M Creosote Is produced from the frac- m tional distillation of coal tar- in stills. , The temperature at which creosote is m obtained varies from 390 degrefes Far- m' enheit, to 650 degrees Farenhelt. The m! actual temperature in each case de- m pends upon the character of the resl- H . due desired. M In most all cases In this country the m manufacture of creosote oil Is general- m' ly secondary to the manufacture of m soft, pitch and, in such cases, the maxl- t f1?1 .temPerature during the distll- mi iaUon is comparatively low. But when m the present tar still Is completed in m Ogden the tar will be distilled largely H ??r t,ht,Production of creosote and m he distillation vill be carried to high- m er temperatures. Creosote is mostly m us a8 a preservative against decay H ??d ltB Preservative qualities are H therefore dependent upon two sub- j Btances. l 1. On constituent aast be suffl- m - f.lefttUy poisonous to prevent mul- 2 tiplying of fungus growths. H' Tho other consUtuent must pre- H tV :. olsture from entering the H , objeot to be preserved. m' vjJihtalt PractIce of wood proser- Hl I!iin' II haB een the tendency to H tS. nwLf i Bub3tce that will make M J p1 impervious to moisture, this p.ropartyelnjf.considered more im- portant than the antiseptic properties. Flotation Process. Considerable creosote has recently' been used in the flotation process of recovering silver, lead and zinc ores. The oil has the property of forming an emulsion with the fine particles of metals which can be skimmed off and thus recovered. In the old process these -fine particles could not be recovered re-covered aud thus were lost entirely. Carbolic Oil. This product is largely used to kill, lice and mites in chicken houses, for protecting hogs from dangerous infections, in-fections, and as a disinfectant in horse stables. For the killing of lice and mites in chicken houses or coops it has no equal, for it contains enough poison to kill the lice and enough oil and grease to protect the chickens from mites. For treating hogs, a burlap Is generally gen-erally wrapped around a post and then thoroughly saturated with a thin solution solu-tion of this carbolic oil. The hogs in 'rubbing against the post will get sufficient oil on their backs andiioses to protect them from any pests thai might exist. Carbolic oil is used in the stable to destroy eggs and act as an antiseptic anti-septic in general. Paint Production. Tar and its by-products lend themselves them-selves admirably to the manufacture of Iron paints, both for high temperature tempera-ture work and otherwise. Due to the fact that the base used for this paint is produced at temperatures, as high as 1800 degrees Farenheit, this paint will stand extreme temperatures such as smokestack paint and other hot surfaces demand. Pitch Is Made. Different grades of pitch are produced, pro-duced, dependent upon the condition under which the pitch will be used. An excellent roofing pitch is manufactured manu-factured which can not be excelled for length of life and quality. Road pitches pit-ches of different grades are also manufactured, manu-factured, dependent upon the nature of the road work to be done. The Coal Tar Colore. The story of the discovery that black, oily refuse of coal used in thp manufacture of gas, could be converted convert-ed Into a coloring material of every know shade and hue, forms one of the most picturesque romances of applied science. Thousands of centuries before be-fore man came upon the earth, in that period of the world's development known as the Carboniferous Age, there flourished everywhere in the hot moist air, luxuriant gaudily colored vegetation. vegeta-tion. The huge animals and reptiles that wandered among the flowering trees and plants trampled them under Toot in the mire and tho natural destruction de-struction of time and the elements piled them in constantly deepening layers upon the ground, where all the beauty they once represented was lost in the -dirt and grime of their decav-ing decav-ing surroundings. Succeeding ages piled layers of stone above the stratum strat-um of decayed vegetation, burying It and, compressing it into stone-like substances sub-stances that we know as coal. Seemingly, nature had destroyed her creation of life and color and had hidden every trace of her handiwork. But nature does not create and destroy de-stroy indiscriminately. The heat represented re-presented in Its latent form in the growing plants and the light transformed trans-formed into their brilliant colors were locked within the lumps of coal ready to produce activity whenever man should have found thiy way to do so. It took him all but the last two con-t?i! con-t?i! to ,scover tno relatively ob-7?f ob-7?f Ct """ heat could be ex- last hnif mvtb 8 coal aud a11 but e last half of the last century to unravel uE SmpliKd proce3s ot restoring rthe colors burled and apparently lost so majrj centuries before 182?eJIUeSt had itB ginning In 1826 widen a great German chemist of the W distillation of indigo. It as no. however, until 1878 that indi-Soi indi-Soi ! cmmercially produced from coal .u produoa. , BlnC6 "umm thousands of different colors have been produced from the same product. no |