RU1584313C - Method of calcium borate producing - Google Patents

Method of calcium borate producing Download PDF

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Publication number
RU1584313C
RU1584313C SU4474172A RU1584313C RU 1584313 C RU1584313 C RU 1584313C SU 4474172 A SU4474172 A SU 4474172A RU 1584313 C RU1584313 C RU 1584313C
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RU
Russia
Prior art keywords
calcium borate
solution
clarified
filtration
clarified solution
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Russian (ru)
Inventor
В.М. Архипова
В.П. Гойзман
Н.А. Котова
В.И. Завацкий
В.Я. Коноплицкий
Н.Е. Кислов
В.И. Пурдич
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Производственное объединение "Бор"
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Priority to SU4474172 priority Critical patent/RU1584313C/en
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Publication of RU1584313C publication Critical patent/RU1584313C/en

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Abstract

FIELD: chemical technology. SUBSTANCE: boron-containing solution is treated with calcined datolite ore and clarified. Carbonized mother liquid is added to the clarified solution at concentration 2-5 wt.-% of clarified solution weight and subjected for the control filtration. After filtration calcium borate is precipitated by milk of lime addition. Calcium borate is separated from mother liquid. Mother liquid is carbonized and added to the clarified solution before filtration. Method ensures to increase the working time of filtercloth at control filtration by 2.5 times and decrease belting and caprone consumption from 1.1 and 0.3 to 0.45 and 0.15 running m/t calcium borate, respectively. EFFECT: increased working time of filtercloth. 1 tbl

Description

Изобретение относится к химической технологии и может быть использовано при производстве бората кальция из борсодержащих растворов. The invention relates to chemical technology and can be used in the production of calcium borate from boron-containing solutions.

Целью изобретения является увеличение срока службы фильтроткани. The aim of the invention is to increase the service life of filter cloth.

П р и м е р. Борсодежащий раствор в количестве 80 м3/мол обрабатывают прокаленной датолитовой рудой и осветляют в отстойнике. В осветленный раствор, содержащий, B2O3 1,95; CaO 0,27; SiO2 0,013; SO4 - 0,24, с рН 7,2, добавляют карбонизированный маточный раствор после осаждения из него бората кальция, содержащий, B2O3 0,24; CaO 0,17; SiO2 0,0005; SO4 - 0,17 и мела 10,6 г/л. Дозировка маточного раствора при добавлении к осветленному раствору в количестве 5 мас. составляет 4 м3/ч. После этого раствор подвергают контрольному фильтрованию на фильтр-прессе с намывкой на фильтровальной перегородке фильтрующего слоя из мела, содержащегося в карбонизированном растворе. 1 раз в смену обработанный слой мела, содержащий выпавшие на нем соединения кальция и задержанные частицы прокаленной датолитовой руды, смывают водой и направляют в отвал.PRI me R. A boron-containing solution in an amount of 80 m 3 / mol is treated with calcined datolite ore and clarified in a sump. In a clarified solution containing, B 2 O 3 1.95; CaO 0.27; SiO 2 0.013; SO 4 - 0.24, with a pH of 7.2, add carbonated mother liquor after precipitation from it of calcium borate, containing, B 2 O 3 0.24; CaO 0.17; SiO 2 0.0005; SO 4 - 0.17 and chalk 10.6 g / l. The dosage of the mother liquor when added to a clarified solution in an amount of 5 wt. is 4 m 3 / h. After that, the solution is subjected to control filtration on a filter press with washing on the filter baffle of the filter layer from chalk contained in the carbonized solution. Once per shift, the treated chalk layer containing calcium compounds deposited on it and trapped particles of calcined datolite ore is washed off with water and sent to the dump.

После фильтрования в раствор добавляют известковое молоко и осаждают борат кальция. Борат кальция отделяют от маточного раствора и последний подвергают карбонизации. After filtering, milk of lime is added to the solution and calcium borate is precipitated. Calcium borate is separated from the mother liquor and the latter is carbonized.

В таблице представлены результаты опытов по фильтрованию борсодержащих растворов. The table shows the results of experiments on filtering boron-containing solutions.

Сравнение предлагаемого способа с прототипом показывает, что срок службы фильтроткани увеличивается в 2,5 раза и сокращается расход бельтинга и капрона соответственно с 1,1 и 0,30 до 0,45 и 0,15 пог. м/т бората кальция. Comparison of the proposed method with the prototype shows that the service life of the filter cloth increases by 2.5 times and reduces the consumption of belting and kapron, respectively, from 1.1 and 0.30 to 0.45 and 0.15 linear meters. m / t calcium borate.

Claims (1)

СПОСОБ ПОЛУЧЕНИЯ БОРАТА КАЛЬЦИЯ, включающий обработку борсодержащего раствора прокаленным датолитовым сырьем, осветление раствора, контрольное фильтрование осветленного раствора, осаждение бората кальция известковым молоком, отделение бората кальция от маточного раствора, отличающийся тем, что, с целью увеличения срока службы фильтроткани, перед контрольным фильтрованием в осветленный раствор вводят карбонизированный маточный раствор в количестве 2 5% от массы осветленного раствора, содержащего карбонат кальция. METHOD FOR PREPARING CALCIUM BORATE, including treatment of boron-containing solution with calcined datolite raw materials, clarification of the solution, control filtration of the clarified solution, precipitation of calcium borate with lime milk, separation of calcium borate from the mother liquor, characterized in that, in order to increase the service life of the filter cloth, before control filtering in the clarified solution is introduced carbonized mother liquor in an amount of 2.5% by weight of the clarified solution containing calcium carbonate.
SU4474172 1988-08-11 1988-08-11 Method of calcium borate producing RU1584313C (en)

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SU4474172 RU1584313C (en) 1988-08-11 1988-08-11 Method of calcium borate producing

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SU4474172 RU1584313C (en) 1988-08-11 1988-08-11 Method of calcium borate producing

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RU1584313C true RU1584313C (en) 1995-07-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1315727C (en) * 2004-12-23 2007-05-16 大连理工大学 Manufacturing method of calcium borate by dissociating ulexite in limebase prooess

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР N 1205483, кл. C 01B 35/12, 1984. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1315727C (en) * 2004-12-23 2007-05-16 大连理工大学 Manufacturing method of calcium borate by dissociating ulexite in limebase prooess

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