SU451627A1 - The method of producing magnesium hydroxide - Google Patents

The method of producing magnesium hydroxide

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Publication number
SU451627A1
SU451627A1 SU1840613A SU1840613A SU451627A1 SU 451627 A1 SU451627 A1 SU 451627A1 SU 1840613 A SU1840613 A SU 1840613A SU 1840613 A SU1840613 A SU 1840613A SU 451627 A1 SU451627 A1 SU 451627A1
Authority
SU
USSR - Soviet Union
Prior art keywords
magnesium hydroxide
producing magnesium
acetate emulsion
polyvinyl acetate
settling
Prior art date
Application number
SU1840613A
Other languages
Russian (ru)
Inventor
Анатолий Иванович Посторонко
Владимир Сергеевич Ривный
Иван Иванович Школьник
Original Assignee
Государственный Союзный Ордена Трудового Красного Знамени Славянский Содовый Комбинат
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 Государственный Союзный Ордена Трудового Красного Знамени Славянский Содовый Комбинат filed Critical Государственный Союзный Ордена Трудового Красного Знамени Славянский Содовый Комбинат
Priority to SU1840613A priority Critical patent/SU451627A1/en
Application granted granted Critical
Publication of SU451627A1 publication Critical patent/SU451627A1/en

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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
    • C01F5/00—Compounds of magnesium
    • C01F5/14—Magnesium hydroxide
    • C01F5/22—Magnesium hydroxide from magnesium compounds with alkali hydroxides or alkaline- earth oxides or hydroxides

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  • 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

Известен способ получени  гидроокиси магни  путем обработки морской воды известковым молоком в присутствии органической добавки- полиакриламида с последующим отделением осадка отстаиванием.A method of producing magnesium hydroxide is known by treating sea water with lime milk in the presence of an organic polyacrylamide additive, followed by separating the precipitate by settling.

Однако по известному способу скорость отстаивани  суспензии гидроокиси магни  низка (0,21 м/час).However, according to a known method, the rate of settling of the magnesium hydroxide slurry is low (0.21 m / h).

С целью увеличени  скорости отстаивани  суспензии гидроокиси магни  предлагаетс  в качестве органической добавки использовать поливинилацетатную эмульсию.In order to increase the rate of settling of the magnesium hydroxide suspension, it is proposed to use a polyvinyl acetate emulsion as an organic additive.

Целесообразно иоливинилацетатную эмульсию вводить в пресную воду, используемую при гаплении извести в процессе получени  известкового молока, в количестве 0,001- 0,005 вес. %.It is advisable to inject the iolivinyl acetate emulsion into the fresh water used for lime limeing during the production of milk of lime in an amount of 0.001 to 0.005 weight. %

Предлагаемый способ позвол ет увеличить скорость отстаивани  суспензии гидроокиси магни  до 0,85 м/час.The proposed method allows to increase the rate of sedimentation of the magnesium hydroxide slurry to 0.85 m / h.

Пример. 250 мл морской воды состава, г/л: кальций 0,44, магний 1,3, хлориды 20,0, СОг 0,025, щелочность 1,2 мг-экв/л, обрабатывают 9,0 мл 10%-ного Са(ОН)2, полученного гашением воды с содержанием 0,001 вес.% поливинилацетатной эмульсии. Содержимое колбы перемегиивают 20 мин, выливают в цилиндр емкостью 250 мл и измер ют скорость осаждени . По полученным данным рассчитывают скорость расслоени  суспензии, котора  равна 0,85 м/час при 0,21 м/час по известному методу . Мутность осветлепного сло  0,1 г/л Л%(ОН)2 против 0,28 г/л по известному способу .Example. 250 ml of seawater composition, g / l: calcium 0.44, magnesium 1.3, chlorides 20.0, C02 0.025, alkalinity 1.2 meq / l, treated with 9.0 ml of 10% Ca (OH ) 2, obtained by quenching water with a content of 0.001 wt.% Polyvinyl acetate emulsion. The contents of the flask were peremesiivat 20 min, poured into a cylinder with a capacity of 250 ml and measure the deposition rate. According to the data obtained, the separation rate of the suspension is calculated, which is equal to 0.85 m / h at 0.21 m / h according to a known method. The turbidity of the bright layer of 0.1 g / l L% (OH) 2 against 0.28 g / l by a known method.

Предмет изобретени Subject invention

Claims (2)

1.Способ получени  гидроокиси магни  путем обработки морской воды известковым молоком в присутствии органической добавки с последующим отделением осадка отстаиванием , отличающийс  тем, что, с целью увеличени  скорости отстаивани  суспензии гидроокиси мапш , в качестве органической1. A method of producing magnesium hydroxide by treating seawater with lime milk in the presence of an organic additive followed by separating the precipitate by settling, characterized in that добавки используют поливинилацетатную эмульсию.additives use polyvinyl acetate emulsion. 2.Способ по п. 1, отличающийс  тем, что поливинилацетатную эмульсию примен ют в количестве 0,001-0,005 вес.%.2. A method according to claim 1, characterized in that the polyvinyl acetate emulsion is used in an amount of 0.001-0.005 wt.%.
SU1840613A 1972-10-24 1972-10-24 The method of producing magnesium hydroxide SU451627A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1840613A SU451627A1 (en) 1972-10-24 1972-10-24 The method of producing magnesium hydroxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1840613A SU451627A1 (en) 1972-10-24 1972-10-24 The method of producing magnesium hydroxide

Publications (1)

Publication Number Publication Date
SU451627A1 true SU451627A1 (en) 1974-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1840613A SU451627A1 (en) 1972-10-24 1972-10-24 The method of producing magnesium hydroxide

Country Status (1)

Country Link
SU (1) SU451627A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314985A (en) * 1980-02-27 1982-02-09 Amstar Corporation Recovery of magnesium as magnesium hydroxide from sea water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314985A (en) * 1980-02-27 1982-02-09 Amstar Corporation Recovery of magnesium as magnesium hydroxide from sea water

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