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SU424814A1 - METHOD OF OBTAINING CO 2 CALCIUM - Google Patents

METHOD OF OBTAINING CO 2 CALCIUM

Info

Publication number
SU424814A1
SU424814A1 SU1773721A SU1773721A SU424814A1 SU 424814 A1 SU424814 A1 SU 424814A1 SU 1773721 A SU1773721 A SU 1773721A SU 1773721 A SU1773721 A SU 1773721A SU 424814 A1 SU424814 A1 SU 424814A1
Authority
SU
USSR - Soviet Union
Prior art keywords
calcium
soda solution
treatment
carried out
limestone
Prior art date
Application number
SU1773721A
Other languages
Russian (ru)
Original Assignee
А. И. Алексеев , П. В. Яшунин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А. И. Алексеев , П. В. Яшунин filed Critical А. И. Алексеев , П. В. Яшунин
Priority to SU1773721A priority Critical patent/SU424814A1/en
Application granted granted Critical
Publication of SU424814A1 publication Critical patent/SU424814A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

1one

Изобретение относитс  к производству глинозема гидрохимическим методом в присутствии известн ка. При переработке нефелиновых и других пород на 1 т глинозема необходимо обжигать около 3 т известн ка. Замена извести Природны.м известн ко м позвол ет исключить операцию обжига известн ка и улучшить технико-экономические показатели.The invention relates to the production of alumina by the hydrochemical method in the presence of limestone. When processing nepheline and other rocks per 1 ton of alumina, it is necessary to burn about 3 tons of limestone. Replacing lime Naturally known lime eliminates limestone firing and improves technical and economic performance.

Известен способ получени  известн ка путем обогаидени  известн ка обработкой содовым раствором концентрацией 220-250 г/л Na2O углекислой при 75-100°С с получением нирсонита, который разлагают водой при 95- 100°С с получением известн ка и содового раствора.A method of producing limestone is known by enriching limestone by treating with a soda solution with a concentration of 220-250 g / l of Na2O carbonic acid at 75-100 ° C to obtain nirsonite, which is decomposed with water at 95-100 ° C to obtain limestone and soda solution.

С целью использовани  в качестве исходного сырь  натриево-кальциевого гидросиликата обработку содовым раствором концентрацией 150-200 г/л МагО углекислой ведут в присутствии углекислого газа.In order to use sodium-calcium hydrosilicate as a raw material, the treatment with a soda solution with a concentration of 150–200 g / l of MagO carbon dioxide is carried out in the presence of carbon dioxide.

При этом обработку содовым раствором ведут при 50-95°С.The treatment with soda solution is carried out at 50-95 ° C.

Пример. Патриево-кальциевый гидросиликат состава Ыа2О2СаО-251О2-П20 обрабатывают углекислым газом в содовом растворе 150-200 г/л Na2O углекислой при 50-95°С по реакцииExample. Patho-calcium hydrosilicate composition Na2O2CaO-251O2-P20 is treated with carbon dioxide in soda solution 150-200 g / l Na2O carbonic acid at 50-95 ° С by reaction

Na,0 2СаО 2SiOj Н.,0 + ЗСО, + Na.,CO, -f + (Na.CO, CaCO, 2H,O) +SiO, H,O.Na, 0 2СаО 2SiOj N., 0 + ЗСО, + Na., CO, -f + (Na.CO, CaCO, 2H, O) + SiO, H, O.

В результате такой обработки получают пульпу, содержащую ппрсонит Ка СОзСаСОз-2Н2О и гель кре.мнекислоты SiO2Н2О . Пульпу раздел ют на ннрсопит п гель в отстойной аппаратуре. Полученный пирсонит обрабатывают водой с получепием ра.створа воды и углекислого кальци . Предлагаемый способ позвол ет в значительной степени сократить расход известн ка (примерно 50-60%).As a result of this treatment, a pulp is obtained containing ppsonite Ka COzCoCOz-2H2O and gel Creme acid SiO2H2O. The pulp is divided into an nrsopite foam in a settling apparatus. The obtained pirsonit is treated with water to obtain a solution of water and calcium carbonate. The proposed method allows a significant reduction in lime consumption (approximately 50-60%).

Предмет изобретени Subject invention

Claims (2)

1.Способ получени  углекпслого кальци  путем обработки кальциевого соединени  содовы .м раствором при повышенной температуре с получением пирсоппта и обработки носледнего водой, о т л и ч а ю ш, и и с   тем, что, с целью использовани  в качестве исходного сырь  - натриево-кальциевого гидросилпката, обработку содовы.м растворо.м концентрацией 150-200 г/л Na2O углекислой ведут в присутствии углекислого газа.1. A method of obtaining carbon-containing calcium by treating a calcium compound with soda solution with an elevated temperature to obtain a piercapta and treating the last-minute water with water, about 1 ml, and so that, in order to use sodium chloride as a raw material -calcium hydrophosphate, the treatment of soda solution with a solution of 150-200 g / l of Na2O carbonate is carried out in the presence of carbon dioxide. 2.Способ по п. 1, о т л и ч а ю щ п и с   тем, что обработку содовым раствором ведут при 50-95°С.2. The method according to claim 1, about tl and h and y and p so that the treatment with soda solution is carried out at 50-95 ° C.
SU1773721A 1972-04-13 1972-04-13 METHOD OF OBTAINING CO 2 CALCIUM SU424814A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1773721A SU424814A1 (en) 1972-04-13 1972-04-13 METHOD OF OBTAINING CO 2 CALCIUM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1773721A SU424814A1 (en) 1972-04-13 1972-04-13 METHOD OF OBTAINING CO 2 CALCIUM

Publications (1)

Publication Number Publication Date
SU424814A1 true SU424814A1 (en) 1974-04-25

Family

ID=20510924

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1773721A SU424814A1 (en) 1972-04-13 1972-04-13 METHOD OF OBTAINING CO 2 CALCIUM

Country Status (1)

Country Link
SU (1) SU424814A1 (en)

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