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Gas liquor

Wastewater Treating. Earlier we discussed the importance of bringing environmental experts into the project early. Wastew ater treating can be part of the battery limits process area in the case of phenol extraction from coal gasification gas liquor, but this is an e.xception. [Pg.229]

Acetylene works Acrylates works Aldehyde works Aluminum works Amines works Ammonia works Anhydride works Arsenic works Asbestos works Benzene works Beryllium works Bisulfate works Bromine works Cadmium works Carbon disulfide works Carbonyl works Caustic soda works Cement works Ceramic works Chemical fertilizer works Chlorine works Chromium works Copper works Di-isocyanate works Electricity works Fiber works Fluorine works Gas liquor works Gas and coke works Hydrochloric acid works Hydrofluoric acid works Hydrogen cyanide works Incineration works Iron works and steel works... [Pg.755]

Wohler, E. Removal and Recovery of Phenol and Ammonia from Gas Liquor Lurgi Kohle Mineraloltechnik GmbH, 1978. [Pg.455]

Etherton studied the growth and nucleation kinetics of gypsum crystallization from simulated stack gas liquor using a one-liter seeded mininucleator with a Mixed Suspension Mixed Product Removal (MSMPR) configuration for the fines created by the retained parent seed. The effect of pH and chemical additives on crystallization kinetics of gypsum was measured. This early fundamental study has been the basis for later CSD studies. [Pg.116]

Etherton, D.L., "Experimental Study of Calcium Sulfate (Gypsum) Crystallization from Stack-Gas Liquors," M.S. Thesis, University of Arizona, Tucson (1980). [Pg.128]

Ammonia also may be produced as a by-product from gas liquor obtained from coal, gas, and coke ovens. Organic nitrogen in the coal converts to ammonium compounds which are separated from tar and distilled with an aqueous suspension of Ca(OH)2 to produce ammonia. [Pg.20]

The Lurgi gasifiers used by Sasol operate at "low" temperatures and consequently phenols, and "tars" are "distilled" from the coal at the top of the gasifier, and carried out with the raw gas. On condensation two liquid phases are formed, "tar" and "gas liquor" (water). The "tar acids" (phenol, cresols etc) are dissolved in the "gas liquor" which is fed to the Phenosolvan unit where the acids are recovered by counter current extraction with butyl acetate or diisopropyl ether. The crude tar acids are fractionated to yield phenol, ortho, meta and para cresol and xylenols. The phenol is further refined to produce a high purity, colourless and stable product. Phenol is used mainly in the production of formaldehyde resins while the cresols are used as flotation frothers and in the manufacture of pesticides etc. [Pg.32]

Chemically bound nitrogen in coal is converted to NH in the gasifier and the ammonia ends up in the "gas liquor" (water) phase. After extraction of the tar acids in the Phenosolvan process, the liquor is steam-stripped to remove the NH which is then purified. [Pg.32]

Gas Liquor. Same as Ammonia cal Liquor, briefly described in Vol 1 of Encycl, p A305-L... [Pg.669]

W. P. Bloxam does not recommend the preparation of this salt by passing hydrogen sulphide into an alcoholic soln. of ammonia because a complex salt, (NH S.wNHiS, is obtained, and the crystals contain alcohol. R. Laming made an aq. soln. of ammonium hydrosulphide by heating ammonium carbonate or gas liquor with sodium sulphide P. Spence, by heating the tank waste from the Leblanc soda process or gas lime with ammonium salts in a stream of steam and J. J. Berzelius recommended subliming a mixture of ammonium chloride and potassium sulphide—not in excess. [Pg.646]

C. Raspe treated the ammoniacal liquid derived from the distillation of coal, bones, etc., with zinc carbonate to remove the sulphur, and finally distilled the product—the empyreumatic matters were removed by passing the vapours through hot coke. An acid carbonate is also made on a large scale from aqua ammonia (from gas liquor) and carbon dioxide. The product has 21-23 per cent, of ammonia. It decomposes more slowly than the ordinary commercial carbonate containing 31 per cent, of ammonia. According to P. Seidler, it furnishes the commercial carbonate when resublimed, as in the 1846 patent of F. C. Hills. [Pg.798]

Ammoniaeal Liquor or Gas Liquor. Impure ammonia water obtained as a by-product in the distillation of coal, tar, bones, etc... [Pg.305]

Until World War I, AN was manufd chiefly by neutralizing, with weak HNO, the NH, present in aqueous by-products of the artificial gas and coking industries. As the HNO, was then manufd from Chile saltpeter, it contained HC1, HNO, and boric acid as impurities, while the gas liquor NH, used contained pyridine and thiocyanates. Consequently, the AN also contained the same impurities. Such An was used in blasting explosives and, to some extent, in mixed fertilizers. In 1913 the manuf of HNO, from NH, produced from atmospheric nitrogen was begun in Europe. This acid was of a higher degree of purity and, as it was neutralized with synthetic NH, the AN produced was much purer than that obtained by the earlier process... [Pg.313]

Amatol is made up in various proportions of ammonium nitrate to trinitrotoluene, such as 50/50, 60/40, and 80/20. The granulated, dried, and sifted ammonium nitrate, warmed to about 90°, is added to melted trinitrotoluene at about 90°, and the warm mixture, if 50/50 or 60/40, is ladled into the shells which have been previously warmed somewhat in order that solidification may not be too rapid, or, if 80/20, is stemmed or extruded into the shells by means of a screw operating within a steel tube. Synthetic ammonium nitrate is preferred for the preparation of amatol. The pyridine which is generally present in gas liquor and tar liquor ammonia remains in the ammonium nitrate which is made from these liquors and causes frothing and the formation of bubbles in the warm amatol—with the consequent probability of cavitation in the charge. Thiocyanates which are often present in ammonia from the same sources likewise cause frothing, and phenols if present tend to promote exudation. [Pg.367]

Ammonia was formerly obtained by distilling a mixture of ammonium sulphate and lime but it is now usually made by direct distillation of the gas-liquor so as to produce either the so-called concentrated gas-liquor, or the so-called caustic ammonia. The former has 16-26 per cent, of ammonia in the cruder product... [Pg.167]

A 10.0-g sample of gas liquor is boiled with an excess of NaOH and the resulting ammonia is passed into 60 mL of 0.90 N H2SO4. Exactly 10.0 mL of 0.40N NaOH are required to neutralize the excess sulfuric acid (not neutralized by the NH3). What is the percent NH3 in the gas liquor examined ... [Pg.215]


See other pages where Gas liquor is mentioned: [Pg.288]    [Pg.215]    [Pg.216]    [Pg.172]    [Pg.1178]    [Pg.63]    [Pg.19]    [Pg.92]    [Pg.562]    [Pg.695]    [Pg.695]    [Pg.781]    [Pg.784]    [Pg.798]    [Pg.554]    [Pg.589]    [Pg.593]    [Pg.167]    [Pg.167]    [Pg.168]    [Pg.465]    [Pg.215]    [Pg.227]    [Pg.313]    [Pg.204]    [Pg.185]    [Pg.313]    [Pg.562]   


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