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    • 15. 发明公开
    • 농축해수를 이용한 해수마그네시아 제조방법
    • 海水浓缩海水制造方法
    • KR1020130073500A
    • 2013-07-03
    • KR1020110141377
    • 2011-12-23
    • 재단법인 포항산업과학연구원
    • 문정기윤영기곽명화
    • C01F5/02C01F5/14B01D21/02
    • C01F5/08B01D21/02C01F5/22
    • PURPOSE: A producing method of seawater magnesia using concentrated seawater is provided to produce seawater magnesia with high productivity and simple processes by using a solid-liquid separator and the concentrated seawater obtained from a seawater desalination process. CONSTITUTION: A producing method of seawater magnesia using concentrated seawater comprises the following steps: decarbonating the concentrated seawater obtained from a seawater desalination process; precipitating magnesium hydroxide by adding a precipitation agent to supernatant of the decarbonated concentrated seawater; separating and filtering magnesium hydroxide from the supernatant using a solid-liquid separator; and plasticizing the separated magnesium hydroxide. The seawater desalination process is a reverse osmotic pressure type seawater desalination process. The precipitation agent is one or more selected from Ca (OH)2 or NaOH. The producing method of seawater magnesia processes the supernatant without magnesium hydroxide with a nanofilter into concentrated water and processed water. [Reference numerals] (AA) Seawater; (BB) Pre/preprocess; (CC) Product water; (DD) Corrosiveness; (EE) Concentrate; (FF) Decarbonation; (GG) Precipitation; (HH,KK) Supernatant; (II) Ca (OH)_2 injection; (JJ) Separation (decanter); (LL) Processed water; (MM) Discharging; (NN) Plasticity
    • 目的:提供一种使用浓缩海水的海水氧化镁的生产方法,通过使用固体 - 液体分离器和从海水淡化过程获得的浓缩海水,以高生产率和简单的工艺生产海水氧化镁。 构成:使用浓缩海水的海水氧化镁的生产方法包括以下步骤:从海水淡化过程中获得的浓缩海水脱碳; 通过向脱碳酸浓缩海水的上清液中加入沉淀剂沉淀氢氧化镁; 使用固液分离器从上清液中分离和过滤氢氧化镁; 并分离氢氧化镁。 海水淡化过程是反渗透压型海水淡化过程。 沉淀剂是选自Ca(OH)2或NaOH中的一种或多种。 海水氧化镁的生产方法将不含氢氧化镁的上清液用纳滤膜加工成浓缩水和加工水。 (附图标记)(AA)海水; (BB)预处理/预处理; (CC)产品水; (DD)腐蚀性; (EE)浓缩液; (FF)脱碳; (GG)降水; (HH,KK)上清液; (II)Ca(OH)_2注射液; (JJ)分离(滗析器); (LL)加工水; (MM)放电; (NN)可塑性
    • 16. 发明公开
    • 일종의 백운석 습식 종합이용 공정
    • 一种湿法工艺综合利用技术
    • KR1020110031544A
    • 2011-03-29
    • KR1020090088844
    • 2009-09-21
    • 김미순
    • 김미순안성호이강선
    • C01F5/14C01F11/46C01F5/08
    • C01F5/16C01F5/08C01F5/145C01F11/46Y02P20/582
    • PURPOSE: A process for using one kind of dolomite wet processing method is provided to reduce energy consumption by effectively separate calcium and magnesium from dolomite through a wet process. CONSTITUTION: Calcium and magnesium are separated from dolomite by adding 5-98% concentration of a sulfuric acid solution and extracting acid from the dolomite. A first calcium sulfate product and a magnesium sulfate solution are obtained. A magnesium chloride and a second calcium sulfate product are obtained by adding 10-60% concentration of a calcium chloride solution and implementing a double decomposing process with respect to the magnesium sulfate solution. A magnesium hydroxide product is obtained by adding 5-30% concentration of lime oil and implementing a neutralizing process with respect to the magnesium chloride.
    • 目的:提供一种使用白云石湿法加工方法的方法,通过湿法将白云石与钙和镁分离,从而降低能耗。 构成:通过加入5-98%浓度的硫酸溶液并从白云石中提取酸,从白云石中分离出钙和镁。 得到第一种硫酸钙产物和硫酸镁溶液。 通过加入10-60%浓度的氯化钙溶液并实施相对于硫酸镁溶液的双重分解方法获得氯化镁和第二种硫酸钙产物。 通过加入5-30%浓度的石灰油并对氯化镁实施中和过程获得氢氧化镁产物。