PL5927B3 - The method of obtaining sulfur from calcareous sulphates. - Google Patents

The method of obtaining sulfur from calcareous sulphates. Download PDF

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Publication number
PL5927B3
PL5927B3 PL5927A PL592726A PL5927B3 PL 5927 B3 PL5927 B3 PL 5927B3 PL 5927 A PL5927 A PL 5927A PL 592726 A PL592726 A PL 592726A PL 5927 B3 PL5927 B3 PL 5927B3
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PL
Poland
Prior art keywords
alkali
sulphates
chlorides
sulfur
alloy
Prior art date
Application number
PL5927A
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Polish (pl)
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Publication date
Application filed filed Critical
Publication of PL5927B3 publication Critical patent/PL5927B3/en

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Description

Najdluzszy czas trwania patentu do 24 wrzesnia 1941 r.Wynalazek dotyczy dalszego rozwi¬ niecia opisanego w patencie Nr 5 926 spo¬ sobu otrzymywania siarki z siarczanów wapiniowców, przyozem produkt surowy rozpuszcza sie w stopionym chlorku sodo¬ wym i pr-zeiz dodanie koksu otrzymuje sie siarczek wapniowca.Wedlug niniejszego wynalazku do sto¬ pu chlorku alkalicznego i siarczanu wap¬ niowca, przed albo po redukcji koksem, do¬ daje sie chlorku magneziu dla ulatwienia przemiany siarczków waJpniowców na chlor¬ ki alkaliczne.Chlorek magnezu stosowano dotychczas do otrzymywania ^siarkowodoru na drodze mokrej'1,. Jednakze ten ispoisób jesit koiszitloW- ny i prowadzi dio zanieczyszczenia wód od¬ plywowych, Wedlug niniejszego wynalaz¬ ku dodaje sie prawie odwodnionego chlor¬ ku magnezu do zawierajacego zredukowa¬ ne siarczany stopu alkalicznego, Wydziela¬ ja sie wtedy duze ilosci isiarkowodoru, jed-lioozesnie odlacza sie tlenek magnezu, przy- czem z nierozpuszczalnych w stopie siarcz¬ ków wapniowców tworza sie chlorki wap¬ niowców latwo roz|pulszc;zialne w stopionych chlorkach alkaljów, Wywiazytwainie sie siar¬ kowodoru mozna zwieikszyc i ulatwic przez wprioiwaidlzanie) ten sposób otrzymuje sie bardzo szybko wolry od siarczków wapniowców stop lek^ ko plynny, skladajacy sie z chlorków alkal- jów i wapniowtówu W stopie tyim tlenek magnezu szybko sie osadtea tak, ze Latwo go mozna usunac.Jezeli stop chlorków alka!j ów i wap¬ niowców uwolniony od magnezji i zawiera¬ jacy jeszcze w nadmiarze koks, zastosowac do ponownego rozpuszczania i redukcji siatnczanów wiajpniowiców, to: l-o mozna prowadzic prace w sposób ciagly, 2-o usu¬ nac wady zwiazane z praca ma drodze mo¬ krej, a mianolwicie: koszitowne otrzymywa¬ nie ichilorków alkalicznych przez odparowy¬ wanie i zanieczyszczanie stopu przez lugi pokrystaliczne.Skutkiem tego, ze magnezje stale od¬ dziela sie przez osadzanie ia tworzacy isie chlorek wapniowca stale wprowadza sie w obieg kolowy,, otrzymiuje sie ostatedzniie czysty zawierajacy tylko chlorki alkaliczi- ne stop chlorków wapniowców, którego o- trzymiywanie jest bardzo proste i nie pozwa¬ la na powstawaniie lugów pokrystaliicznych zanieczysizczajacych stop. PLThe longest term of the patent until September 24, 1941. The invention relates to a further development of the method of obtaining sulfur from calcareous sulphates described in the patent No. 5,926, with the addition of the raw product dissolved in molten sodium chloride and the addition of coke is obtained According to the present invention, magnesium chloride is added to the concentration of alkali chloride and calcium sulfate before or after reduction with coke to facilitate the conversion of alkaline sulfides to alkali chlorides. Magnesium chloride has heretofore been used to obtain hydrogen sulfide on wet road'1. However, this is a kind of siliticide and leads to the contamination of wastewater. According to the present invention, almost dehydrated magnesium chloride is added to the alkali alloy containing reduced sulfate. Large amounts of hydrogen sulphide are then released, the magnesium oxide is detached, and the calcium chloride is easily formed from the non-soluble calcium sulphides; it is easy to dissolve in the molten alkali chlorides, the formation of hydrogen sulphide can be increased and facilitated by injection) this method is obtained very quickly volatile from calcium sulphides, a slightly liquid alloy, consisting of alkali and calcium oxide chlorides In this alloy, the magnesium oxide is quickly deposited so that it can be easily removed. If the alloy of alkali and calcium chloride is free from magnesia and containing coke in excess, to be used to redissolve and reduce the retinates of chrysanthemums, then: work can be carried out continuously, 2-o remove the disadvantages related to the work in a wet way, namely: expensive preparation of alkali silides by evaporation and contamination of the alloy by post-crystalline liquors. As a result, the magnesia is constantly separated by sedimentation, and the calcium chloride which forms and forms are continuously circulated, and a pure calcium chloride alloy containing only alkali chlorides is obtained, which is very easy to clean and does not allow the formation of post-crystalline loams contaminating the alloys. PL

Claims (2)

1. Zastrzezenia patentowe^ 1, Spcsób otrzymywania siarki z siar¬ czanów wapniowców, wedlug patentu Nr 5926, znamienny tern, ze do stopu chlor¬ ków alkalicznych i siarczanów wapniowców przed albo po redukcji koksem, dodaje sie chlorku magnezu, poczem wytlworzony w dalszym przebiegu procesu tlenek magnezu oddziela sie od stopu, zawierajacego juz chlorki alkaljów i Wiaipniowców zapomoca odstania sie, zas wywiazujacy sie siarkowo¬ dór mozna przerabiac w sposób znany na siarke albo zwiazki siarkowe.1. Claims ^ 1 Method for obtaining sulfur from alkaline earth sulphates, according to the patent No. 5926, characterized by the fact that magnesium chloride is added to the alloy of alkali chlorides and alkali sulphates before or after reduction with coke, which is then further developed In the process, the magnesium oxide is separated from the alloy, which already contains the chlorides of alkali and Wiaipniowców, by means of detachment, and the resulting hydrogen sulphide can be converted into sulfur or sulfur compounds in a known manner. 2. , Sposób wedlug zastrz, 1, znamienny tern, ze do stopu wprowadza sie pare wodna, 3, Sposób wedlug zastrz. 1 ii 2, znamien¬ ny tern, ze sito(p chlorków alkalicznych i ohllorików wapniowców istoisuje isie do prze¬ róbki dalszych ilosci materjalu, S al zwerk Heil bronn A. G. Theodor Lich ten ber gea K o nr ad Flor. Zastepca: L Mytszczynski, rzecznik patentowy. Druk L. Boguslawskiego, Warszawa. PL2. A method according to claim 1, characterized by introducing water vapor into the melt. 1 and 2, characterized by the fact that the sieve (for alkali chlorides and alkaline earth metals is used for processing further amounts of material, S al zwerk Heil bronn AG Theodor Lich ten ber gea K no. Ad Flor. Deputy: L Mytszczynski, Patent attorney, Print by L. Boguslawski, Warsaw, PL
PL5927A 1926-01-21 The method of obtaining sulfur from calcareous sulphates. PL5927B3 (en)

Publications (1)

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PL5927B3 true PL5927B3 (en) 1926-10-30

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