Technical Solution for the Disposal of Solid Slag from Metallurgical Plants with Production of Abrasive Powders

This article considers a technical solution to the production of abrasive powders according to the standard ISO 11126 from copper slag and nickel slag with the use of air classification. Justification of the selection of air classifier for the process of classification of copper slag is performed. The results of laboratory studies on the effect of the consumption concentration on the quality of the separation of slag particles in apparatus with an inclined louver lattice with reverse air suction are presented. This article then discusses the dependence of the material separation boundary on the air flow rate through the classifier’s louver. Based on the theoretical calculation, an industrial apparatus with a capacity of 50 t/h on initial raw materials was developed, laboratory tests were industrialized, and the results of industrial tests were shown. Industrial testing was carried out and the results of are shown. Keywords: granulated slag, disposal, abrasive powder, granulometric composition, consumption concentration, air classifier, screenin

New and interesting spiders (Aranei: Agelenidae, Corinnidae, Gnaphosidae, Nemesiidae, Thomisidae) from the West Caucasus

2 new species Tegenaria chumachenkoi sp. n. and Zelotes khostensis sp. n., female of Tegenaria abchasica Charitonov, 1941 and male of Raveniola pontica (Spassky, 1937) are described from Khosta environs (Krasnodar Region, Russia). Males of Tegenaria abchasica and T. longimana Simon, 1898 are redescribed. For the comparison with Zelotes khostensis sp. n., diagnostic drawings of the closest species, Z. erebeus (Thorell, 1871) based; on specimens from Austria, are presented. Tegenaria longimana is recorded in Russia for the first time. Khosta environs is the northernmost locality in the range of T. longimana.Cetonana laticeps (Canestrini, 1868) is recorded in, Russia and the Caucasus for the first time. Zelotes olympi (Kulczyński, 1903) is recorded in Russia and the Caucasus for the first time. Gelendzhik (Krasnodar Region, Russia) environs is the easternmost locality in the ranges of C. laticeps and Z. olympi. Cozyptila guseinovorum Marusik et Kovblyuk, 2005 is recorded in Abkhazia (Georgia) for the first time

Review of the spider genus Tegenaria Latreille, 1804 (Aranei: Agelenidae) of the Russian Caucasus and Ciscaucasia. II. A new species and an interesting record

A new spider species from the family Agelenidae Tegenaria terskovi Ponomarev, sp. n. is described from the south part of Russia (Stavropol Region). It is close to T. podoprygorai (Kovblyuk, 2006) and T. lehtineni (Guseinov, Marusik et Koponen, 2005), from which it differs in the shape of the retrolateral tibial apophysis, the conductor, the position of the embolic base. The holotype is deposited in the Zoological Museum of the Moscow State University (Moscow, Russia). The first record of Tegenaria hasperi Chyzer, 1897 from Dagestan is also provided; the species is illustrated

New species and new records of spiders (Aranei) in the south of Russia

Three new species of spiders from the families Gnaphosidae and Titanoecidae are described from the south of the European part of Russia (Astrakhan Region, Dagestan). Talanites alexeevi Ponomarev, sp. n. is characterized by the lamellar embolus, the narrow embolar base with the acute tooth-like outgrowth directed ventro-apically, the double-apex median apophysis, the epigyne with rounded fovea at the posterior margin and the anterior epigynal triangular-shaped hood with the wide arcuate posterior margin, the transverse oval contiguous spermathecae. Talanites thorelli Ponomarev, sp. n. has the following diagnostic characters: the tibia of the palp is with two processes; the embolar base is narrow, not wider than its distal part; the inner apical margin of the embolus is transformed into a long point; the double-apex median apophysis. Titanoeca caspia Ponomarev, sp. n. differs from congeners by the following characters: the tibia of the palp has a large, wide, complicated outgrowth pro-laterally, extending far beyond the lateral margin of the cymbium; tegulum with the large embolic pocket; the anterior margin of the embolic pocket bears a distinct tubercle; the process of the tegulum is large, retro-laterally shifted; the embolar haematodocha is large, protruding; the epigyne is with the narrow transverse slightly curved sclerotized plate; spermathecae are large, single, with short copulatory ducts. A new faunistic data are given for 14 species of spiders from the families Dictynidae, Gnaphosidae, Lycosidae, Mimetidae, Segestriidae, Theridiidae, Thomisidae. The following seven species of spiders are recorded for the fauna of Russia for the first time: Anagraphis ochracea (L. Koch, 1867), Gnaphosa haarlovi Denis, 1958, Zelotes fulvaster (Simon, 1878), Alopecosa kuntzi Denis, 1953, Alopecosa spasskyi Ponomarev, 2008, Lasaeolla dbari Kovblyuk, Marusik et Omelko, 2012, Ozyptila rigida (O. Pickard-Cambridge, 1872)

A new species and new records of spiders (Aranei) in the south of European Russia

A new species of spider from the family Gnaphosidae Marinarozelotes ponticus Ponomarev, sp. n. is described from the south of Russia (Krasnodar Region). The new species is close to the Mediterranean species Marinarozelotes bardiae (Caporiacco, 1928), from which it differs in the greater length of the retrolateral loop of the embolar base and the presence of the distal protrusion of the embolus. The holotype is deposited in the Zoological Museum of the Moscow State University (Moscow, Russia), the paratypes are kept in the mentioned institution and in the personal collection of A.V. Ponomarev (Razdorskaya, Rostov Region, Russia). Data on the first records of Callilepis schuszteri (O. Herman, 1879) in Volgograd Region, Heliophanus simplex Simon, 1868 and Synema ornatum (Thorell, 1875) in Rostov Region are give

The materials on the fauna of spiders (Aranei) of Belgorod area

The annotated list of spiders of Belgorod area, including 388 species from 28 families is provide

A review of spiders of the genera Trachyzelotes Lohmander, 1944 and Marinarozelotes Ponomarev, gen. n. (Aranei: Gnaphosidae) from the southeast of the Russian Plain and the Caucasus

The species composition and taxonomy of Trachyzelotes Lohmander, 1944 s. l. from the Russian Plain and the Caucasus (8 species) are reviewed. The new genus Marinarozelotes Ponomarev, gen. n. (type species: Melanophora barbata L. Koch, 1866) is described. This genus differs from other Zelotinae by the following characters of the copulative organs: large distally rounded base of the embolus; terminal apophysis is obliquely oriented or distally rounded; loop-like embolus; epigina with an M-shaped median ridge. New combinations are established: Marinarozelotes adriaticus (Caporiacco, 1951), comb. n., Marinarozelotes ansimensis (Seo, 2002), comb. n., Marinarozelotes baiyuensis (Xu, 1991), comb. n., Marinarozelotes barbatus (L. Koch, 1866), comb. n., Marinarozelotes bardiae (Caporiacco, 1928), comb. n., Marinarozelotes chybyndensis (Tuneva et Esyunin, 2002), comb. n., Marinarozelotes cumensis (Ponomarev, 1979), comb. n., Marinarozelotes fuscipes (L. Koch, 1866), comb. n., Marinarozelotes glossus (Strand, 1915), comb. n., Marinarozelotes holosericeus (Simon, 1878), comb. n., Marinarozelotes huberti (Platnick et Murphy, 1984), comb. n., Marinarozelotes jaxartensis (Kroneberg, 1875), comb. n., Marinarozelotes kulczynskii (Bösenberg, 1902), comb. n., Marinarozelotes lyonneti (Audouin, 1826), comb. n., Marinarozelotes malkini (Platnick et Murphy, 1984), comb. n., Marinarozelotes manytchensis (Ponomarev et Tsvetkov, 2006), comb. n., Marinarozelotes miniglossus (Levy, 2009), comb. n., Marinarozelotes minutus (Crespo, 2010), comb. n., Marinarozelotes mutabilis (Simon, 1878), comb. n., Marinarozelotes ravidus (L. Koch, 1875), comb. n., Marinarozelotes stubbsi (Platnick et Murphy, 1984), comb. n. The distribution patterns in the southeast of the Russian Plain and the Caucasus are analyzed for Trachyzelotes pedestris (C.L. Koch, 1837), Marinarozelotes adriaticus, M. barbatus, M. chybyndensis, M. cumensis, M. jaxartensis, M. malkini, M. manytchensis. A key to species of the genera Trachyzelotes and Marinarozelotes Ponomarev, gen. n. occurring in the studied region is given. Marinarozelotes lyonneti is excluded from the list of species of the region

Spiders (Aranei) families Philodromidae and Thomisidae plains of Stavropol Province

The list of 22 species of spiders of families Philodromidae and Thomisidae plains and foothills of Stavropol Province is resulte

Two new species and new records of spiders (Aranei) in Dagestan (Russia)

Two new spider species from the families Gnaphosidae and Zodariidae are described from the south of Russia (Republic of Dagestan). Haplodrassus nabozhenkoi Ponomarev, sp. n. is similar to H. signifer (C.L. Koch, 1839) and H. pseudosignifer Marusik, Hippa et Koponen, 1996, from which it differs in the shape of the embolic apophysis (slightly curved, almost straight in the new species), the structure of the embolus, the shape of the lateral pockets and the fovea of epigyne, the size of spermathecae (they are relatively larger in the new species). Zodariellum dagestanum Ponomarev, sp. n. is similar to Z. volgouralense Ponomarev, 2007, from which it differs in the smaller size and details in the structure of the male palp, and colouration. Data on the first records of Clubiona caucasica Mikhailov et Otto, 2017, Diaea livens Simon, 1876 in Dagestan and Titanoeca caucasica Dunin, 1985 in Russia and Georgia are also provided.ZooBank Article LSID: urn:lsid:zoobank.org:pub:F629F136-0AC9-4811-9965-1796B2198BF

Spiders (Aranei) of the Lower Volga Region (Astrakhan and Volgograd areas of Russia) with the description of new taxa

Based on the original material and literature data the annotated species list of spiders is presented for the Lower Volga Region (the Astrakhan and Volgograd areas of Russia). At present 254 species from 23 families are recorded in the region. Of them in the Astrakhan area — 177 species from 22 families, in Volgograd area — 149 species from 19 families are revealed. The genus Bogdocosa Ponomarev et Belosludtsev gen. n. (Lycosidae) with type species Bogdocosa baskuntchakensis Ponomarev et Belosludtsev sp. n. is described from the Astrakhan area of Russia. The new species Haplodrassus caspius Ponomarev et Belosludtsev sp. n. (Gnaphosidae) from the Astrakhan area of Russia and Atyrau areas of Kazakhstan is descrab