SU406802A1 - - Google Patents

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Publication number
SU406802A1
SU406802A1 SU1699340A SU1699340A SU406802A1 SU 406802 A1 SU406802 A1 SU 406802A1 SU 1699340 A SU1699340 A SU 1699340A SU 1699340 A SU1699340 A SU 1699340A SU 406802 A1 SU406802 A1 SU 406802A1
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SU
USSR - Soviet Union
Prior art keywords
stage
solution
mgo
magnesium
carbon dioxide
Prior art date
Application number
SU1699340A
Other languages
Russian (ru)
Inventor
Л. Е. Сологубенко В. Д. хов Н. Колесова В. А. Ступак А. И. Кирчанова Б. А. Шойхет
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Publication date
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Priority to SU1699340A priority Critical patent/SU406802A1/ru
Application granted granted Critical
Publication of SU406802A1 publication Critical patent/SU406802A1/ru

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00Compounds of magnesium
    • C01F5/24Magnesium carbonates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Description

СПОСОБ ПОЛУЧЕНИЯ РАСТВОРА БИКАРБОНАТА МАГНИЯMETHOD OF OBTAINING MAGNESIUM BICARBONATE SOLUTION

1one

Изоб1рет©н.ие относитс  к снособа:м получени  бикарбоната магни .The invention relates to the removal method: the production of magnesium bicarbonate.

Известен способ получени  растеора бикарбоната .мални  путем кар бонизадии суспеизии гидроокиси матни  в одну стадию разбрызгиванием суопвнзии в ат1маофере углекислого газа при температуре не выше 26°С и рН раствора не выше 8,4.A known method for producing a small-metal bicarbonate rasteor by carbonisadium suspension of hydroxide in one stage by sprinkling carbon dioxide at the top of a temperer at a temperature not higher than 26 ° C and the pH of the solution is not higher than 8.4.

Недостатком известного способа  вл етс  невозможность достижени  большой скорости процесса с одиовремен1ным сохранен и ом высокого выхода .и  в раствор.The disadvantage of this method is the impossibility of achieving a high speed of the process with the same time being preserved and high output and solution.

По предлагаемому снособу суопбн.зию гидроокиси или окиси магЕи  карбо изуют углеюислычм газе в три стадии до люл рного wношени  COa/MgO н температуры Соответственно на Heipeoft стадии 1,4-1,5 и 20-23°С, на второй стадии 1,7-1,8 и 24-27°С и }ia третьей стадии 1,9-2,0 и 27-30°С. Это позвол ет повысить скорость процесса за счет увеличани  коэффициента абсорбции с 30-35 кг СОг/л час ат.1г до 198кг COz/M час атл1. Выход мапни  в раствор 90-95% (против 40% но извест1но му способу).According to the proposed procedure, hydroamides or oxides of magne sulphide carbonate carbonate coal gas in three stages up to the lurid ratio of COa / MgO and temperature, respectively, at Heipeoft stages 1.4-1.5 and 20-23 ° С, at the second stage 1.7 -1.8 and 24-27 ° С and} ia of the third stage 1.9-2.0 and 27-30 ° С. This makes it possible to increase the speed of the process by increasing the absorption coefficient from 30–35 kg CO2 / l h at.1g to 198 kg COz / M h atl1. The yield of mapni in solution is 90-95% (versus 40% of the known method).

Пример. Суспензию с садержаиием 16 г/л гиарооииси магни  в пересчете ,на MgO надают иа карбонизацию при расходе 29 л1час. Суспензи  последовательно проходит через три ступени карбанизации. Углекислый газ в 1количест1ве 500 л1час ввод т в каскад изExample. A suspension with 16 g / l of magnesium hydroxide in terms of magnesium in terms of MgO is carbonated at a flow rate of 29 l1 hour. The suspension successively passes through three stages of carbanization. Carbon dioxide at a volume of 500 l1 hour is introduced into a cascade of

трех аппаратов параллельно и распредел ют в соотношении 1,4:1,4:1,0 соответственно, что обеонеч.нвает уста1новле1ние в каждом из трех атнаратов каскада-оиределенного соот ношеНИЯ CO2/MgO в растворе.The three apparatus are parallel and distributed in a ratio of 1.4: 1.4: 1.0, respectively, which both indicate the presence in each of the three cascade atarate-determined ratios of CO2 / MgO in solution.

Механические барботажные абсорберы имеют объем 1,5 л ка1Ж,дый, коэффициент заполнени  0,85 и оонаш.вны турбинными мешал камИ с числом оборотов, раинымMechanical bubbling absorbers have a volume of 1.5 liters each, and a fill factor of 0.85 and one turbine turbine chamber with rotational speed

1000 мин . Процесс провод т прН давлении углекислого газп I атм.1000 min The process is carried out at a pressure of carbon dioxide I atm.

Па нервую стадию карбо1иизац,ии нодают суспензию гидроокиси магн.и  (29 л1час) с темиературой 18°С н углекислый газ (185 л/час). Выход ща  суопеизи  имеет темноратуру 23°С; жидка  фаза ее представл ет собой карбонат-бнкарбоиатномагниейый раствор с мол рным отношение.. CO2:MgO l,5 и содержаиием MgO - 7 г1л. В твердой фазеAt the nerve stage of carbohydrate, and nodayut suspension of magnes hydroxide (29 1 hour) with a temperature of 18 ° C and carbon dioxide (185 l / hour). The yield of swapy has a dark temperature of 23 ° C; its liquid phase is a carbonate – bio-magnesium solution with a molar ratio of. CO2: MgO 1, 5 and the MgO content is 7 g1 l. In the solid phase

находитс  гидроокись магни  (нримесь карбоната магни  Не нревышает 2-3% ло отношению к гидроокиси магни ). Суснбизи   указанного cocTaiBa са мотеко.м поступает иа вторую стадию карбсиизации, куда нодают такжеmagnesium hydroxide (magnesium carbonate mixture does not exceed 2-3% relative to magnesium hydroxide). Susnbis of the indicated cocTaiBa sa motek.m. Enters the second stage of carbsiization, where nodayut also

185 л/час углекислого газа.185 l / h of carbon dioxide.

Выход ща  со второй стадии суснегнзн  имеат температуру 27°С, мол |рное отношение C02:MgO l,77 .н концентрацию .gO в растворе 11,8 г/л. Эту суспензию нанравл ют «аLeaving the second stage of the susceptibility, the temperature is 27 ° C, the molar ratio C02: MgO l, 77.n the concentration of .gO in the solution is 11.8 g / l. This suspension is set to "a

третью стадию карбонизации, туда же нодают 3 130 л1час углекислого газа. С уопензи , выводи- .ма  с третьей стадии, имеет температуру 30°С, «анцантрацию MgO в жлакой фазе 14,4 г/л и мол рное отношение C02:MgO 1,96. Пред-мет 1з о б р е т ен и   Способ получени  раствора бихарбо1ната мапни  путем карбоиизации суспензии гидро4 окиси лли магни  углеигасльш газом, отличающийс  тем, что, с целью повышени  скорости проце-сса и увеличени  выхода магии  в раствор, карбонизац-ию сусле 13И1И веД )т стадии до мол рного отношэни  COa/AigO .и температуры соответственно на пср1вой стадии 1,4-1,5 и 20-:23°С, второй стадии 1,7-1,8 и 24-27°С и на третьей ciaдии 1,9-2,0 .и 27-30°С.the third stage of carbonization, 3 130 l1h of carbon dioxide is added to the same place. With uopenzi, the output from the third stage, has a temperature of 30 ° C, "the MgO anantantation in the slag phase is 14.4 g / l and the molar ratio C02: MgO is 1.96. The method of obtaining a solution of biharbo1nat map by carbonizing the suspension of hydroxides of magnesium with carbon dioxide, characterized in that, in order to increase the speed of the process and increase the yield of magic in the solution, carbonizate 13I1I all the stages are at the molar ratio of COa / AigO. and the temperature, respectively, at the ps1 stage of 1.4-1.5 and 20-: 23 ° С, the second stage 1.7-1.8 and 24-27 ° С and the third stage 1.9-2.0. and 27-30 ° C.

SU1699340A 1971-09-21 1971-09-21 SU406802A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732304A1 (en) * 1995-03-10 1996-09-18 SOCIETA GENERALE PER L'INDUSTRIA DELLA MAGNESIA, S.p.A. Process for the preparation of magnesium compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0732304A1 (en) * 1995-03-10 1996-09-18 SOCIETA GENERALE PER L'INDUSTRIA DELLA MAGNESIA, S.p.A. Process for the preparation of magnesium compounds

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