SU565878A1 - Method of obtaining barium carbonate - Google Patents
Method of obtaining barium carbonateInfo
- Publication number
- SU565878A1 SU565878A1 SU7602339762A SU2339762A SU565878A1 SU 565878 A1 SU565878 A1 SU 565878A1 SU 7602339762 A SU7602339762 A SU 7602339762A SU 2339762 A SU2339762 A SU 2339762A SU 565878 A1 SU565878 A1 SU 565878A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- barium carbonate
- carbonate
- obtaining barium
- product
- barium
- Prior art date
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
- C01F11/186—Strontium or barium carbonate
- C01F11/188—Barium carbonate
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
Изобретение относитс к способу получени карбоната бари и может примен тхгс в химической промышленности. Известен способ получени карбоната бе бари путем карбонизации раствора сернистого бари или взаимодействи его с Kaflбонатом натри или карбонатом аммони , отделени осадка карбоната бари , промывки его и сушки при 1О5-12О С. Дл снижени содержани сульфидной серы в получаемом продукте его смешив ют с водой, добавл ют небольшое количество шелочи, нагревают в автоклаве до 140- 150 С, а затем сушат. Общее содернжание серы в продукте удаетс снизить до О,2% в пересчете на В а 5р или О,027% в пересчете на S. Нёпостаткамн известного способа вл ютс сложность и высока стоимость очистиKB продукта от сульфидной серы и все еще высокое ее содержан|;е. Известен способ получени карбоната бари путем карбонизации раствора сервнстого бари в присутствии сероводорода. отделени осадка карбоната бари и отмывки его раствором едкого натра. Однако в известном; способе кспопызуетс дорогосто щий едкий натр, а содержание сульфидной серы в продукте не удаетс снизить менее, чем до О,02%. Наиболее близок к изо етешпо способ получени карбоната бари , включающий взаимодействие раствора сернистого бари с карбонатом щелочнотх) металла или аммони , отделение осадка карбоната б1ари от образовавшейс суспензии, его промывку слабым jpacTBopoM бикарбоната натри , термоофаботку до 550-56О С со скоростью нагрева около 15 град/мин с последующим дроблением, повторной промывкой и сушкой продукта, В указанном способе в процессе термоо аботки карбоната бари до 550-56О С со скоростью нагрева около 15 град/мин присутствующа в качестве примеси сульфиднл сера переходит в сульфатную с о разоваиием растворимых в воде сульфатов, которые после дроблени вымывают иа продукта. Дополнительные операции дробле,The invention relates to a method for producing barium carbonate and may be used in the chemical industry. A known method for producing barium carbonate is by carbonizing a solution of barium sulphide or reacting it with sodium carbonate or ammonium carbonate, separating the barium carbonate precipitate, washing it and drying it at 1O5-12 ° C. add a small amount of silk, heat in an autoclave to 140-150 ° C, and then dry. The total sulfur content in the product can be reduced to O, 2% in terms of Ba and 5p or O, 027% in terms of S. The disadvantage of this method is the complexity and high cost of clearing the product from sulfide sulfur and still high in it; e. A method of producing barium carbonate by carbonizing a solution of serum barium in the presence of hydrogen sulfide is known. separating the precipitate of barium carbonate and washing it with caustic soda solution. However, in the famous; the method of cops produces expensive caustic soda, and the content of sulfide sulfur in the product cannot be reduced to less than 0.0%. Closest to the method of producing barium carbonate, including the interaction of barium sulphide solution with alkali metal or ammonium carbonate, separating the barium carbonate precipitate from the resulting suspension, washing it with a weak jpacTBopoM sodium bicarbonate, heating up to 550-56 ° C with a heating rate of about 15 degrees / min, followed by crushing, re-washing and drying the product. In the indicated method, in the process of heat treatment of barium carbonate to 550-56 ° C with a heating rate of about 15 deg / min, it is present as an impurity with Ultrafluoric sulfur goes into sulphate with the formation of water-soluble sulphates, which, after crushing, wash out the product. Additional operations
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7602339762A SU565878A1 (en) | 1976-03-29 | 1976-03-29 | Method of obtaining barium carbonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU7602339762A SU565878A1 (en) | 1976-03-29 | 1976-03-29 | Method of obtaining barium carbonate |
Publications (1)
Publication Number | Publication Date |
---|---|
SU565878A1 true SU565878A1 (en) | 1977-07-25 |
Family
ID=20654119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU7602339762A SU565878A1 (en) | 1976-03-29 | 1976-03-29 | Method of obtaining barium carbonate |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU565878A1 (en) |
-
1976
- 1976-03-29 SU SU7602339762A patent/SU565878A1/en active
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