发明名称 |
processo de produção de cloreto de sódio |
摘要 |
The present invention pertains to a process for producing sodium chloride comprising the steps of: (i) preparing a brine having a sodium chloride concentration which is higher than the sodium chloride concentration of the eutectic point but lower than the sodium chloride concentration of a saturated brine by dissolving a sodium chloride source in water; (ii) cooling the resulting brine by indirect cooling in a self-cleaning fluidized bed heat exchanger/crystallizer to a temperature lower than 0° C. but higher than the eutectic temperature of the resulting brine, thereby forming a slurry comprising sodium chloride dihydrate and a mother liquor; (iii) feeding the sodium chloride dihydrate to a recrystallizer to form sodium chloride and a mother liquor, and (iv) recycling at least part of the mother liquor obtained in step (ii) and/or step (iii) to step (i). |
申请公布号 |
BRPI0914395(A2) |
申请公布日期 |
2015.10.20 |
申请号 |
BR2009PI14395 |
申请日期 |
2009.10.29 |
申请人 |
AKZO NOBEL N.V. |
发明人 |
ALLERT SCHOKKER;HENDRIKUS WILHELMUS BAKKENES;JOHANNES ALBERTUS MARIA MEIJER;MARIA STEENSMA |
分类号 |
B01D9/00;C01D3/06;C01D3/14 |
主分类号 |
B01D9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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