PL14895B1 - A method of processing sylwinite, containing kieserite, raw potassium salts. - Google Patents
A method of processing sylwinite, containing kieserite, raw potassium salts. Download PDFInfo
- Publication number
- PL14895B1 PL14895B1 PL14895A PL1489529A PL14895B1 PL 14895 B1 PL14895 B1 PL 14895B1 PL 14895 A PL14895 A PL 14895A PL 1489529 A PL1489529 A PL 1489529A PL 14895 B1 PL14895 B1 PL 14895B1
- Authority
- PL
- Poland
- Prior art keywords
- magnesium
- carbonic acid
- heated
- chloride
- kieserite
- Prior art date
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 7
- 229910052928 kieserite Inorganic materials 0.000 title claims description 6
- 159000000001 potassium salts Chemical class 0.000 title claims 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 18
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 18
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 11
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- 229910021529 ammonia Inorganic materials 0.000 claims description 9
- 235000019270 ammonium chloride Nutrition 0.000 claims description 9
- RAQQJEFTDXAGKW-UHFFFAOYSA-M C([O-])([O-])=O.[Mg+].[NH4+] Chemical compound C([O-])([O-])=O.[Mg+].[NH4+] RAQQJEFTDXAGKW-UHFFFAOYSA-M 0.000 claims description 7
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 6
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 6
- 235000011151 potassium sulphates Nutrition 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims description 6
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 5
- 239000012452 mother liquor Substances 0.000 claims description 5
- 239000001120 potassium sulphate Substances 0.000 claims description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 239000000203 mixture Substances 0.000 description 5
- 239000001103 potassium chloride Substances 0.000 description 5
- 235000011164 potassium chloride Nutrition 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- 235000012501 ammonium carbonate Nutrition 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 239000001095 magnesium carbonate Substances 0.000 description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- VZEXJUAYWWLSEP-UHFFFAOYSA-N N.[Cl].Cl Chemical compound N.[Cl].Cl VZEXJUAYWWLSEP-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 150000002681 magnesium compounds Chemical class 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical group [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
Znanem jest wytwarzanie siarczanu potasowego przez oddzialywanie chlorku potasu na siarczan magnezowy w roztwo¬ rze amoniakalnym chlorku amonowego, W mysl niniejszego wynalazku mozna przerabiac odpowiedni surowiec soli pota¬ sowej w ten sposób, ze wszystkie jego skladniki zostaja otrzymane w postaci technicznie czystych produktów.Odpowiedniemi surowcami dla tej prze¬ róbki sa takie sole sylwinitowe, które poza chlorkiem potasu i chlorkiem sodu glównie zawieraja kizeryt.Azeby przeprowadzic ten proces, nale¬ zy sklad surowca tak regulowac, azeby stosunek pomiedzy chlorkiem potasu i ki- zerytem byl w przyblizeniu odpowiednim.Moze to nastapic albo przez mieszanie roz¬ maitych partj i soli z kopalni, albo przez dodanie chlorku potasowego, wzglednie ki- zerytu i chlorku sodowego, t. j. mieszani¬ ny, która stanowi czesc odpadkowa przy fabrykacji chlorku potasu, która dotad wy¬ rzucano.Poniewaz kizeryt, jako taki, nie posiada zdolnosci reagowania, przerabia sie go naj¬ pierw na sól gorzka. W tym celu surowiec, przed jego wprowadzeniem do fabrykacji, poddaje sie prazeniu lub drobnemu zmie¬ leniu. W ten sposób przygotowany suro¬ wiec ogrzewa sie z lugiem macierzystym mozliwie wolnym od amonjaku lub ubogim w amoniak, pochodzacym z jednej z po¬ przednich operacyj, przyczem wspomnia-ha przeróklca latwo nastepuje. Lug macie¬ rzysty trzeba ,dlatego mozliwie uwolnic od amomjilw^ponleWai •Jlmonj ak wstrzymuje reakcje. Nastepnie ochladza sie mieszanine i wprowadza amonjak, przyczem wytworzo¬ ne przez rozpuszczenie sie amonjaku cieplo usuwa sie przez chlodzenie tak, azeby tem¬ peratura pozostala mniejwiecej stala.Po ukonczonej przemianie osad sklada sie z siarczanu potasowego i siarczanu so¬ dowego, przycjzem jezeli zachowuje sie do¬ brze warunki pod wzgledem ilosci amonja- ku i temperatury, zawartosc siarczanu so¬ dowego w osadzie jest istotnie mniejsza, anizeli w glazetrycie (Na2S04) . (3K2S04).Osad oddziela sie i sklóca, zalewajac zimna woda, przyczem rozpuszcza sie siarczan sodowy obok jednej czesci siarczanu pota¬ sowego, a pozostaje tylko wysokoprocen¬ towy siarczan potasowy.W roztworze pozostalym po wydziele¬ niu siarczanów znajduje sie amonjak, chlo¬ rek amonowy, chlorek magnezowy i chlo¬ rek sodowy. Przez doprowadzenie kwasu weglowego wytraca sie magnez, jako we¬ glan magnezowo-amonowy, praktycznie WJorac, ilosciowo tak, ze lug zawiera teraz tylko weglan amonu, chlorek sodu i wiek¬ sza rlosc ohlodku amonu. Weglan magnezo¬ wo-amonowy jest dobrym produktem wyj¬ sciowym dla wytwarzania innych zwiaz¬ ków magnezowych, przyczem otrzymuje sie z powrotem amonjak i kwas weglowy.Przy suszeniu weglanu magnezowo-a- monowego utatnia sie amonjak, kwas we¬ glowy i woda krystalizacyjna i otrzymuje sie weglan magnezu. Jezeli ogrzewa sie silniej» to uchodzi wiecej kwasu weglowe¬ go, tak ze w koncu pozostaje tlenek magne¬ zu. Weglan magnezowo-amonowy lub we¬ glan magnezu ogrzewane (razem z chlor¬ kiem amonu daja bezwodny chlorek ma¬ gnezu, podczas gdy amonjak i kwas weglo¬ wy stosuje sie gpowrotem do przeróbki.Lug macierzysty po wydzieleniu wegla¬ nu magnezowego ochladtea sie, przyczem wydziela sie najwieksza czesc chlorku amo¬ nowego. Jezeli nie oddzielac osobno wegla¬ nu magnezowo-amonoweigo przed ochladza¬ niem, to otrzymuje sie wyzej wspomniana mieszanine chlorku amonu i weglanu ma- gnezowo-amonowego, która to mieszanina po suszeniu i kalcynowaniu daje bezwod¬ ny chlorek magnezu przy jednoczesnym zwrocie do procesu kwasu weglowego i a- monjaku.Przez wpuszczanie kwasu weglowego do lugu macierzystego po wydzieleniu chlorku amonowego, zawierajacego weglan amo¬ nowy, wytraca sie sód, jako dwuweglan sodu.Pozostaly lug macierzysty zawiera przewaznie chlorek amonowy obok dwu¬ weglanu amonowego i chlorku sodu. Ce¬ lem usuniecia kwasu weglowego i amon ja¬ ku ogrzewa sie go i zuzytkowuje w zasto¬ sowaniu do wymienionego z poczatku trak¬ towania surowca soli, przez co sposób ten przedstawia sie jako zamkniety proces ko¬ lowy. PLIt is known to produce potassium sulphate by the interaction of potassium chloride with magnesium sulphate in an ammoniacal solution of ammonium chloride. According to the present invention, it is possible to process the corresponding raw material of potassium salt in such a way that all its components are obtained in the form of technically pure products. For this treatment, there are sililinite salts which, apart from potassium chloride and sodium chloride, mainly contain kieserite.To carry out this process, the composition of the raw material should be adjusted so that the ratio between potassium chloride and kieserite is approximately appropriate. either by mixing various batches and salt from the mine, or by adding potassium chloride or kieserite and sodium chloride, a mixture which is part of the waste from the production of potassium chloride which has so far been discarded. as such, it does not react, it is first converted into bitter salt. For this purpose, the raw material is calcined or finely ground before it is put into manufacture. The raw material prepared in this way is heated with ammonia-free or ammonia-free mother liquor derived from one of the previous operations, for which the transformation is easy to follow. The mother lug has to be freed from amomjilw ponleWai - Jlmonj ak stops the reaction. The mixture is then cooled and the ammonia added, while the heat generated by the dissolution of the ammonia is removed by cooling so that the temperature remains less constant. After the conversion is complete, the precipitate consists of potassium sulphate and sodium sulphate, if not good conditions as regards the amount of ammonia and temperature, the content of sodium sulphate in the sludge is significantly lower than in the glaze (Na 2 SO 4). (3K2SO4). The sediment separates and fours, pouring on cold water, while the sodium sulphate dissolves next to one part of potassium sulphate, leaving only high-grade potassium sulphate. The remaining solution after sulphate separation is ammonia, chlorine ammonium chloride, magnesium chloride and sodium chloride. By supplying carbonic acid, the magnesium is precipitated as magnesium ammonium carbonate, practically in Jorac, quantitatively so that the liquor now contains only ammonium carbonate, sodium chloride and a greater proportion of ammonium hydroxide. Magnesium ammonium carbonate is a good starting product for the preparation of other magnesium compounds, with the return of ammonia and carbonic acid. When the magnesium ammonium carbonate is dried, ammonia, carbonic acid and water of crystallization are lost and magnesium carbonate is obtained. If it warms up more, more carbonic acid escapes, so that eventually there is magnesium oxide. Magnesium-ammonium carbonate or magnesium carbonate heated (together with the ammonium chloride give anhydrous magnesium chloride, while ammonia and carbonic acid are used back for processing. The mother liquor cooled after the separation of magnesium carbonate by the greatest proportion of the ammonium chloride is released.If the magnesium ammonium carbonate is not separated separately before cooling, the above-mentioned mixture of ammonium chloride and magnesium ammonium carbonate is obtained, which mixture, after drying and calcining, gives anhydrous magnesium chloride with simultaneous return to the process of carbonic acid and ammonium acid. By introducing carbonic acid into the mother liquor after the separation of ammonium chloride, containing ammonium carbonate, the sodium is eliminated as sodium bicarbonate. The remaining mother liquor usually contains ammonium chloride in addition to two Ammonium carbonate and sodium chloride. To remove carbonic acid and ammonium as it is, it is heated and used for the udder application. from the beginning of the treatment of raw salt, whereby the method presents itself as a closed circular process. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL14895B1 true PL14895B1 (en) | 1931-11-30 |
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