- Email: [email protected]
01230 Method for thermal briqueting of coal for carbonization
01
96m1224 lncruetetlonr in etatic and dynamic dewatorlng of herd coal Bieg, G. et al., Clue&$ 1995, 131, (5), 217-221. (In German) The formation of CaCO, mcrustations from CsO dissolved from under-
Solid
tws
(prt3psratfon)
96iO1234 Power from coal -Where to remove Impuritlee? Couch, G. R. IwLCRl82, IEA Coal Research, Gemini House, 10-18 Putney Hill, London SW15 6AA, f450.00 (non-member countries) fl5O.o.W (member countries, Aug.1 995. The report wnsiders both the wnstrahts and tbe opportunities wbicb apply to the removal of impurities from coal, at all stages of tbe coal-to-eiectricity chain. Tbe commercial and regulatory backgmund varies considerably from country to country.
%I01 225 Invoetl ation of the aeeoclated etructure of Upper Freeport coal by eoR ent l weillng Takanobasbi, T. d a& Energy Fuels, 1995, 9, (5). 788-793. Upper Freeport Argonne sample) coal was extracted with C&-N-methyl1-pyrrolidinone CS,-NMP) mtxed solvent at room temperature. lbe swclling bebaviours i or the raw coal, heavy extract fractions, and extraction residue were investigated in several organic solvents. It was found that tbe swelling ratio of the raw coal was lower than those of the extract fractions and residue, independent of the kind of solvents used.
961012% Reactlve-Inert interface8 In meteliurglcal cokes: Effect of added inert8 Barriocanal, C. et al., Fuel, Jan. 1996, 75, (2), 243-245. The quality of interfaces between reactive and inert textural components in cokes produced from tbree single coals with added petroieum~wke and calcined anthracite were quanttfied by microscopy and expressed as an interface uality index, 101. For interfaces involving the three inert wmpo nents stu1ted, tbe IQ1 decreased in the order: inherent inerts > petroleum wke a calcined anthracite. Tbe IQ1 of interfaces involving inherent inerts that the decreased in the presence of added inerts in the wke, imply’ ability of a coal to bind inerts into the coke structure was share 7 between the two types of inerts.
%I01 226 Irrever8lble drylng of cerbonaceoue fueis such as low-rank coals Coleman, R. D. et ail, CAN. Pat. CA.2,136,662, May 1995. The process describes bow low-quality solid carbonaceous fuels such as lignite and subbituminous coal are dried in a mildly reducing atmosphere at 150-300”, preferably 2OO-210”. to reduce the moisture content substantially to xero, and to minimize re-adsorption of moisture during storage and transportation.
96/01236 Recent deveiopmente in coal preparetlon at Germany’s Ruhrkohle, AG Laurila. M. J. Coal. Nov. 1995. 100. 111). 38-39. Describes recent developments by Ruh&& AG, which o rates 14 of the 19 German mines and preparation plants, and produces 4r million tons of clean coal per year.
96101227 Llberation characterletlce of a coal mlddiinge Oliver, E. T. et aL, Coal Preparation, 1995, 16, 3), 167-178. The recovery and quality of product coal is closeI y associated with the distriiution of mineral matter wihin the feed coal and its subsequent liberation. One area where the benefits of liberation could be real&d is in the treatment of coal middlings fractions where relatively high ash contents are not uncommon. Tbe work outlined in this oaoer I concerned with the breakage characteristics of middlings, their i&ration properties and the potential for retreatment. The material used was a ‘typical’ middlings from a dense medium separator and breakage was achieved by swing hammer crushing. 16 tests were conducted covering a range of operating conditions. %I01 226 Method for claeeiflcation - drylng and preheetlng control of coal (Assigned to) Shinnippon Seitetsu KK JAP. Pat. Ootsuk& J. JP.O7,109,466, Apr. 1995. 96lO1229 Method for preventlng abnormal combuetion of gases from coal briquete durlng carbonization Oda, Y. (Assigned to) Shinnippon Seitetsu KK, JAP. Pat. JP.O7,126,654, May 1995. Describes the method for the prevention of gas explosions which is carried out b supplying inert as into coke ovens to maintain the atmosphere outs1-1e tbe explosivity & mits for combustible gases generated from the briqucts. %I01 230 Method for thermal briqueting of coal carbonization Sasaki, M. (Assigned to) Shinnlppon Seitetsu KK, JAP. JP.O7,126,656, May 1995. The process is carried out by rapid beating coal and briqueting to briauets with l-100 cm’ volume and then cbarxinn the briauets into oven for carbonixation to obtain blast-furnace &k;. *
for Pat. form coke
%I01 231 Modellng of coal fiotatlon Rubinshtein, Y. B. and Dvorkin, L. S. Koks Khim., 1995, (l), 4-9. (In Russian) An optimization algorithm is developed which allows to predict the performance of any coal flotation operation based on results of laboratory flotation exoeriments. Describes a method which has been develooed for the calculaiion of floatability distribution function based on n;t well defined algorithms and data. %I01 232 Novel technology for production of fuel coal brlquettee for consumer8 Tarasov, Y. C. Vgol’, 1995, (l)? 44-46. (In Russian) Discusses the demand for match-tgnited coal briquets in Russia. 96101233 Petrologlcal characteristic of brown coal from Karlovo deposit in relatlonshlp wlth their brlquettlng Stefanova, E. and Valceva, S. God Sofi Univ. ‘Sv.Kliment Okhridski’, GeoL-Geogr. Fat, 1995, 84, (l), 49-63. (In Bulgarian) Reports on a &tailed investigation carried out on the material-petrological, pbysicochcmical, and technological properties of brown coals, type 0 from tbe Rarlovo deoosit. The coals wnstst of bumoclarain with lavers and lens of xylain and humovitrain, and the litbotypes semifusain and fusain are exceptional.
96101237 Recovery of anthracite from coal preperatlon-plant taiilng8 Klima, M. S. et al., Miner. Metall. Process., 1995, 12, (3), 149-156. Describes a laboratory study whrclt was conducted to investigate tbe tential for recovering anthracite from coal preparation-plant tailmgs, inc p”* udmg washability analyses, cyclone simulations, and froth-flotation testing. Samples were collected from either tbe tailings streams or tbe slurry ponds of five anthracite-cleaning plants. %I01 2% Recovery of coal from a reject pile by washing Redoute, M. and Mrowiec, M. Karbo-Energochem-Ekol., 1995, 40, (6), 152-156. (In Polish) Describes bow coal recovery from medium- and coarse-grain rejects was canted out in a mobile installation. Tbe use of heavy liqtud separation and hydrocyclones gives a high quality coal concentrate at competitive costs. This technology is now used commercially. Recovery of coal from coal beneflclation waete for %I01 239 use In fuel brlquete Nikol’skaya, N. I. et al., IN. Vyssh. Vchebn. Zaved., Corn. Zh, 1995, (3), 113-115. (In Russian) Describes‘the processing of tailings from wal beneficiation, including removal of fine clav and flotation of sranular material. which moduced a coal concentrate. The fine fraction& be used as an add& and tbe coarse fraction as a filler for tbe manufscture of fuel briquets, satisying the requirements for metallurgical fuels. 96101240 Relation between l weillng of iignite and the charactsrlstlce of ewelllng agents Simsek, E. H. and Olcay, A. Fuel Sci. Technol. Int., 1995, 13, (lo), 1265.1275. Discusses the development relation between swelling ratio of lignites and lignite and solvent characteristics using a third level factorial design with tiwe variables: percent carbon wnteiit, particle size of the l&&e and electron donor number of the solvent. Results indicated that the particle size of tbe lignite does not affect the swelling ratio. 96101241 Removal of sulfur from coal and petroleum products ueina oraanoohoeohlts comoounda Verkade, J: G.- et a’L, (Assigned toj Iowa State University, US Pat. 5,437,6%, Aug. 1995. The process describes bow sulpbur is removed from sulphur-bearing materials such as coal and petroleum products using organopbospbine and organophospbite compounds. 96101242 The sampling of coal Laurila, M. J. and Corriveau, M. P. Intertect Publishin , Mining Information Services, PO Box 6500, Chicago, IL.60680, USA, $84.50 (US & Can) $109.50 (all others). This book, is intended to be a layman’s guide to many aspects of coal sampling and quality control. It is tbe first book published on sampling since 1985 and considerable effort has been made to update rcvious works to reflect the latest efforts of standards organizations. The &trst half of the book is geared toward reviewing sampling theory and tbe development of sampling model referred to in the book as the Corriveau Model. The setond half of the book is orientated toward the application of tbe sampling model in the areas oE sampling programme design, on-line coal quality measurements, mechanical sampling systems, preparation plant sampling programmes, quality control and assurance.,
Fuel and Energy Abstract8
March 1996
85
96m1224 lncruetetlonr in etatic and dynamic dewatorlng of herd coal Bieg, G. et al., Clue&$ 1995, 131, (5), 217-221. (In German) The formation of CaCO, mcrustations from CsO dissolved from under-
Solid
tws
(prt3psratfon)
96iO1234 Power from coal -Where to remove Impuritlee? Couch, G. R. IwLCRl82, IEA Coal Research, Gemini House, 10-18 Putney Hill, London SW15 6AA, f450.00 (non-member countries) fl5O.o.W (member countries, Aug.1 995. The report wnsiders both the wnstrahts and tbe opportunities wbicb apply to the removal of impurities from coal, at all stages of tbe coal-to-eiectricity chain. Tbe commercial and regulatory backgmund varies considerably from country to country.
%I01 225 Invoetl ation of the aeeoclated etructure of Upper Freeport coal by eoR ent l weillng Takanobasbi, T. d a& Energy Fuels, 1995, 9, (5). 788-793. Upper Freeport Argonne sample) coal was extracted with C&-N-methyl1-pyrrolidinone CS,-NMP) mtxed solvent at room temperature. lbe swclling bebaviours i or the raw coal, heavy extract fractions, and extraction residue were investigated in several organic solvents. It was found that tbe swelling ratio of the raw coal was lower than those of the extract fractions and residue, independent of the kind of solvents used.
961012% Reactlve-Inert interface8 In meteliurglcal cokes: Effect of added inert8 Barriocanal, C. et al., Fuel, Jan. 1996, 75, (2), 243-245. The quality of interfaces between reactive and inert textural components in cokes produced from tbree single coals with added petroieum~wke and calcined anthracite were quanttfied by microscopy and expressed as an interface uality index, 101. For interfaces involving the three inert wmpo nents stu1ted, tbe IQ1 decreased in the order: inherent inerts > petroleum wke a calcined anthracite. Tbe IQ1 of interfaces involving inherent inerts that the decreased in the presence of added inerts in the wke, imply’ ability of a coal to bind inerts into the coke structure was share 7 between the two types of inerts.
%I01 226 Irrever8lble drylng of cerbonaceoue fueis such as low-rank coals Coleman, R. D. et ail, CAN. Pat. CA.2,136,662, May 1995. The process describes bow low-quality solid carbonaceous fuels such as lignite and subbituminous coal are dried in a mildly reducing atmosphere at 150-300”, preferably 2OO-210”. to reduce the moisture content substantially to xero, and to minimize re-adsorption of moisture during storage and transportation.
96/01236 Recent deveiopmente in coal preparetlon at Germany’s Ruhrkohle, AG Laurila. M. J. Coal. Nov. 1995. 100. 111). 38-39. Describes recent developments by Ruh&& AG, which o rates 14 of the 19 German mines and preparation plants, and produces 4r million tons of clean coal per year.
96101227 Llberation characterletlce of a coal mlddiinge Oliver, E. T. et aL, Coal Preparation, 1995, 16, 3), 167-178. The recovery and quality of product coal is closeI y associated with the distriiution of mineral matter wihin the feed coal and its subsequent liberation. One area where the benefits of liberation could be real&d is in the treatment of coal middlings fractions where relatively high ash contents are not uncommon. Tbe work outlined in this oaoer I concerned with the breakage characteristics of middlings, their i&ration properties and the potential for retreatment. The material used was a ‘typical’ middlings from a dense medium separator and breakage was achieved by swing hammer crushing. 16 tests were conducted covering a range of operating conditions. %I01 226 Method for claeeiflcation - drylng and preheetlng control of coal (Assigned to) Shinnippon Seitetsu KK JAP. Pat. Ootsuk& J. JP.O7,109,466, Apr. 1995. 96lO1229 Method for preventlng abnormal combuetion of gases from coal briquete durlng carbonization Oda, Y. (Assigned to) Shinnippon Seitetsu KK, JAP. Pat. JP.O7,126,654, May 1995. Describes the method for the prevention of gas explosions which is carried out b supplying inert as into coke ovens to maintain the atmosphere outs1-1e tbe explosivity & mits for combustible gases generated from the briqucts. %I01 230 Method for thermal briqueting of coal carbonization Sasaki, M. (Assigned to) Shinnlppon Seitetsu KK, JAP. JP.O7,126,656, May 1995. The process is carried out by rapid beating coal and briqueting to briauets with l-100 cm’ volume and then cbarxinn the briauets into oven for carbonixation to obtain blast-furnace &k;. *
for Pat. form coke
%I01 231 Modellng of coal fiotatlon Rubinshtein, Y. B. and Dvorkin, L. S. Koks Khim., 1995, (l), 4-9. (In Russian) An optimization algorithm is developed which allows to predict the performance of any coal flotation operation based on results of laboratory flotation exoeriments. Describes a method which has been develooed for the calculaiion of floatability distribution function based on n;t well defined algorithms and data. %I01 232 Novel technology for production of fuel coal brlquettee for consumer8 Tarasov, Y. C. Vgol’, 1995, (l)? 44-46. (In Russian) Discusses the demand for match-tgnited coal briquets in Russia. 96101233 Petrologlcal characteristic of brown coal from Karlovo deposit in relatlonshlp wlth their brlquettlng Stefanova, E. and Valceva, S. God Sofi Univ. ‘Sv.Kliment Okhridski’, GeoL-Geogr. Fat, 1995, 84, (l), 49-63. (In Bulgarian) Reports on a &tailed investigation carried out on the material-petrological, pbysicochcmical, and technological properties of brown coals, type 0 from tbe Rarlovo deoosit. The coals wnstst of bumoclarain with lavers and lens of xylain and humovitrain, and the litbotypes semifusain and fusain are exceptional.
96101237 Recovery of anthracite from coal preperatlon-plant taiilng8 Klima, M. S. et al., Miner. Metall. Process., 1995, 12, (3), 149-156. Describes a laboratory study whrclt was conducted to investigate tbe tential for recovering anthracite from coal preparation-plant tailmgs, inc p”* udmg washability analyses, cyclone simulations, and froth-flotation testing. Samples were collected from either tbe tailings streams or tbe slurry ponds of five anthracite-cleaning plants. %I01 2% Recovery of coal from a reject pile by washing Redoute, M. and Mrowiec, M. Karbo-Energochem-Ekol., 1995, 40, (6), 152-156. (In Polish) Describes bow coal recovery from medium- and coarse-grain rejects was canted out in a mobile installation. Tbe use of heavy liqtud separation and hydrocyclones gives a high quality coal concentrate at competitive costs. This technology is now used commercially. Recovery of coal from coal beneflclation waete for %I01 239 use In fuel brlquete Nikol’skaya, N. I. et al., IN. Vyssh. Vchebn. Zaved., Corn. Zh, 1995, (3), 113-115. (In Russian) Describes‘the processing of tailings from wal beneficiation, including removal of fine clav and flotation of sranular material. which moduced a coal concentrate. The fine fraction& be used as an add& and tbe coarse fraction as a filler for tbe manufscture of fuel briquets, satisying the requirements for metallurgical fuels. 96101240 Relation between l weillng of iignite and the charactsrlstlce of ewelllng agents Simsek, E. H. and Olcay, A. Fuel Sci. Technol. Int., 1995, 13, (lo), 1265.1275. Discusses the development relation between swelling ratio of lignites and lignite and solvent characteristics using a third level factorial design with tiwe variables: percent carbon wnteiit, particle size of the l&&e and electron donor number of the solvent. Results indicated that the particle size of tbe lignite does not affect the swelling ratio. 96101241 Removal of sulfur from coal and petroleum products ueina oraanoohoeohlts comoounda Verkade, J: G.- et a’L, (Assigned toj Iowa State University, US Pat. 5,437,6%, Aug. 1995. The process describes bow sulpbur is removed from sulphur-bearing materials such as coal and petroleum products using organopbospbine and organophospbite compounds. 96101242 The sampling of coal Laurila, M. J. and Corriveau, M. P. Intertect Publishin , Mining Information Services, PO Box 6500, Chicago, IL.60680, USA, $84.50 (US & Can) $109.50 (all others). This book, is intended to be a layman’s guide to many aspects of coal sampling and quality control. It is tbe first book published on sampling since 1985 and considerable effort has been made to update rcvious works to reflect the latest efforts of standards organizations. The &trst half of the book is geared toward reviewing sampling theory and tbe development of sampling model referred to in the book as the Corriveau Model. The setond half of the book is orientated toward the application of tbe sampling model in the areas oE sampling programme design, on-line coal quality measurements, mechanical sampling systems, preparation plant sampling programmes, quality control and assurance.,
Fuel and Energy Abstract8
March 1996
85