RU95115780A - METHOD FOR PRODUCING POTASSIUM SULPHATE - Google Patents

METHOD FOR PRODUCING POTASSIUM SULPHATE

Info

Publication number
RU95115780A
RU95115780A RU95115780/25A RU95115780A RU95115780A RU 95115780 A RU95115780 A RU 95115780A RU 95115780/25 A RU95115780/25 A RU 95115780/25A RU 95115780 A RU95115780 A RU 95115780A RU 95115780 A RU95115780 A RU 95115780A
Authority
RU
Russia
Prior art keywords
liquor
potassium
sludge
containing raw
potassium sulfate
Prior art date
Application number
RU95115780/25A
Other languages
Russian (ru)
Other versions
RU2092436C1 (en
Inventor
А.П. Филиппов
М.П. Вилянский
А.Я. Литвин
М.М. Чикин
Е.И. Гибелев
Л.И. Пономарев
Original Assignee
А.П. Филиппов
Filing date
Publication date
Application filed by А.П. Филиппов filed Critical А.П. Филиппов
Priority to RU95115780A priority Critical patent/RU2092436C1/en
Priority claimed from RU95115780A external-priority patent/RU2092436C1/en
Publication of RU95115780A publication Critical patent/RU95115780A/en
Application granted granted Critical
Publication of RU2092436C1 publication Critical patent/RU2092436C1/en

Links

Claims (2)

1. Способ получения сульфата калия, включающий выщелачивание калийсодержащего сырья, отделение щелока от нерастворимого остатка(шлама), промывку шлама водой, упаривание щелока, охлаждение упаренного раствора и выделение кристаллов сульфата калия, отличающийся тем, что калийсодержащее сырье обрабатывают при соотношении Ж : Т, равном 3 - 4, температуре 85 - 100oС и продолжительности 40 - 60 мин смесью маточных растворов и части промывных вод, взятых в соотношении 1 : 0,8, разделяют шлам и щелочной раствор, промывают шлам свежей водой в количестве около 3 м3 /т сырья, нейтрализуют щелок купоросным маслом до рН 7 - 9, упаривают его до плотности 1,145 - 1,155 и путем охлаждения щелока до плюс 15 - 25oС выделяют кристаллы сульфата калия.1. The method of producing potassium sulfate, including leaching potassium-containing raw materials, separating the liquor from the insoluble residue (sludge), washing the sludge with water, evaporating the liquor, cooling the evaporated solution and isolating the crystals of potassium sulfate, characterized in that the potassium-containing raw material is processed at a ratio of W: T, equal to 3 - 4, a temperature of 85 - 100 o C and a duration of 40 - 60 minutes with a mixture of the mother liquors and a part of wash water in the ratio 1: 0.8, and the separated sludge liquor sludge washed with fresh water in an amount of about 3 m 3 / t of raw material, oil of vitriol neutralized liquor to pH 7 - 9, it was evaporated to a density of 1,145 - 1,155 and by cooling the liquor to between 15 - 25 o C was isolated crystals of potassium sulfate. 2. Способ по п. 1, отличающийся тем, что в качестве калийсодержащего сырья используют пыль цементного производства. 2. The method according to p. 1, characterized in that as the potassium-containing raw materials use cement dust.
RU95115780A 1995-09-06 1995-09-06 Method of preparing potassium sulfate RU2092436C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95115780A RU2092436C1 (en) 1995-09-06 1995-09-06 Method of preparing potassium sulfate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95115780A RU2092436C1 (en) 1995-09-06 1995-09-06 Method of preparing potassium sulfate

Publications (2)

Publication Number Publication Date
RU95115780A true RU95115780A (en) 1997-08-27
RU2092436C1 RU2092436C1 (en) 1997-10-10

Family

ID=20171950

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95115780A RU2092436C1 (en) 1995-09-06 1995-09-06 Method of preparing potassium sulfate

Country Status (1)

Country Link
RU (1) RU2092436C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114408948A (en) * 2022-01-28 2022-04-29 中国科学院青海盐湖研究所 Method for recycling solid waste for producing calcium aluminate

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