GB135545A - - Google Patents

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Publication number
GB135545A
GB135545A GB135545DA GB135545A GB 135545 A GB135545 A GB 135545A GB 135545D A GB135545D A GB 135545DA GB 135545 A GB135545 A GB 135545A
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United Kingdom
Prior art keywords
dutt
silicon tetrafluoride
potassium
revolving
potassium fluoride
Prior art date
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Publication of GB135545A publication Critical patent/GB135545A/en
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/04—Preparation of sulfates with the aid of sulfurous acid or sulfites, e.g. Hargreaves process

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

135,545. Dutt, E. E., and Dutt, P. C. Oct. 18, 1918. Drawings to Specification. Potassium sulphate.-Potassium fluoride and silica are heated to 800‹ C. in one of the revolving furnaces described in Specification 124,544 whilst sulphur dioxide and steam are passed in. Silicon tetrafluoride is evolved, leaving a residue from. which potassium sulphate is obtained by lixiviation. The silicon tetrafluoride its introduced, along with water vapour, into the second revolving furnace, where they react with a potash-hearing silicate rock such as feldspar, in the manner described in Specification 133,474, to produce potassium fluoride.
GB135545D Active GB135545A (en)

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ID=1728857

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103539162A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Process method for preparing ammonium-potassium sulfate from potassium feldspar
CN103539163A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Technology for preparing potassium sulfate by use of potassium feldspar
CN103540993A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Method for preparing calcium sulfate whiskers by use of potassium feldspar decomposition residue
CN103539127A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Process for decomposing potash feldspars
CN103539130A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Technological method for preparing white carbon black from potassium feldspar
CN103539157A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Process for recovering fluorine resource from decomposed potassium feldspar residue
CN103539165A (en) * 2013-10-25 2014-01-29 田娟 Method for producing potassium sulfate by utilizing insoluble rocks containing potassium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103539165A (en) * 2013-10-25 2014-01-29 田娟 Method for producing potassium sulfate by utilizing insoluble rocks containing potassium
CN103539162A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Process method for preparing ammonium-potassium sulfate from potassium feldspar
CN103539163A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Technology for preparing potassium sulfate by use of potassium feldspar
CN103540993A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Method for preparing calcium sulfate whiskers by use of potassium feldspar decomposition residue
CN103539127A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Process for decomposing potash feldspars
CN103539130A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Technological method for preparing white carbon black from potassium feldspar
CN103539157A (en) * 2013-10-31 2014-01-29 洛阳氟钾科技有限公司 Process for recovering fluorine resource from decomposed potassium feldspar residue
CN103539163B (en) * 2013-10-31 2016-03-02 洛阳氟钾科技股份公司 Utilize the technique of potassium felspar sand preparing potassium sulfate
CN103539157B (en) * 2013-10-31 2016-06-01 洛阳氟钾科技股份有限公司 The technique of fluorine resource is reclaimed from potassium feldspar decomposition residue

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