公开(公告)号：US20080056981A1

公开(公告)日：2008-03-06

申请号：US11666000

申请日：2005-10-18

申请人： Gerrald Bargeman ,  Rene Demmer ,  Boris Kuzmanovic ,  Cornelis Van Lare ,  Mateo Mayer ,  Maarten Schutyser ,  Jan Westerink

发明人： Gerrald Bargeman ,  Rene Demmer ,  Boris Kuzmanovic ,  Cornelis Van Lare ,  Mateo Mayer ,  Maarten Schutyser ,  Jan Westerink

IPC分类号： C01D3/06

CPC分类号： C01D3/14 ,  C01D3/16 ,  C01D5/00 ,  C01D7/00 ,  C02F1/44 ,  C02F1/442 ,  C02F1/52 ,  C02F1/66 ,  C02F9/00 ,  C02F2001/5218 ,  C02F2101/10 ,  C02F2101/16 ,  C02F2103/08 ,  Y02A20/131

摘要： The invention pertains to a method for at least partially removing soluble divalent anions from an aqueous divalent anion-containing brine solution comprising a crystal growth inhibitor (CGI) for the divalent anion, the method comprising the process steps: obtaining a sodium chloride concentration between 100 g/L and saturation in the presence or absence of a CGI for sodium chloride or a sodium chloride concentration above saturation in the presence of a CGI for sodium chloride, and acidifying the solution to a pH below 11.5; subjecting the solution to a membrane filtration step thereby separating the brine solution into a brine stream being supersaturated for the divalent anion (concentrate), and a brine stream being undersaturated for the divalent anion (permeate); subjecting the supersaturated brine stream comprising the crystal growth inhibitor for the divalent anion to a crystallization process, removing crystallized divalent anion; and optionally, recycling the overflow of the crystallizer to the brine solution for subjecting it again to the membrane filtration step.

摘要翻译： 本发明涉及从含二价阴离子的含水二价阴离子盐水溶液中至少部分除去可溶性二价阴离子的方法，该方法包括二价阴离子的结晶生长抑制剂（CGI），该方法包括以下步骤：获得100 在存在或不存在用于氯化钠的CGI或在氯化钠的CGI存在下高于饱和的氯化钠浓度的情况下的饱和度，并将溶液酸化至低于11.5的pH; 使溶液进行膜过滤步骤，从而将盐水溶液分离成用于二价阴离子（浓缩物）过饱和的盐水流，并且对于二价阴离子（渗透物）不饱和的盐水流; 将包含结晶生长抑制剂的过饱和盐水流作为二价阴离子进行结晶处理，除去结晶二价阴离子; 并且可选地，将结晶器的溢流器再循环到盐水溶液中，以再次使其进行膜过滤步骤。

公开(公告)号：US20050076477A1

公开(公告)日：2005-04-14

申请号：US10623574

申请日：2003-07-22

申请人： Mateo Mayer ,  Robert Geertman ,  Rene Demmer

发明人： Mateo Mayer ,  Robert Geertman ,  Rene Demmer

IPC分类号： C01D3/16 ,  C01D3/24 ,  C01D3/26 ,  C30B1/00

CPC分类号： C01D3/26 ,  C01D3/16 ,  C01D3/24

摘要： The invention relates to an evaporative crystallisation process to make salt compositions which includes a step wherein a mother liquor containing an effective amount of a crystal growth comprising at least one saccharide or saccharide derivative is formed, to form high-purity salt. The salt can be washed with a reduced amount of washing water while still containing lower amounts of K, Br, SO4 and/or Ca. The high-purity salt can be obtained after drying of the salt crystals formed. A wet salt can be obtained by partially drying said salt crystals.

摘要翻译： 本发明涉及一种制备盐组合物的蒸发结晶方法，其包括形成含有有效量的包含至少一种糖或糖衍生物的晶体生长的母液以形成高纯度盐的步骤。 盐可以用减少量的洗涤水洗涤，同时仍然含有较少量的K，Br，SO 4和/或Ca。 干燥形成的盐晶后，可以得到高纯度盐。 通过部分干燥所述盐晶体可以获得湿盐。

公开(公告)号：US20060150892A1

公开(公告)日：2006-07-13

申请号：US10552733

申请日：2004-04-23

申请人： Mateo Mayer

发明人： Mateo Mayer

IPC分类号： H01L21/322 ,  C30B15/14

CPC分类号： C01D3/24 ,  B01D9/0054 ,  B01D61/022 ,  B01D61/025 ,  B01D61/027 ,  C01D3/16

摘要： The present invention pertains to a process to make salt compositions comprising the steps of feeding water to a salt source to form an aqueous solution comprising said salt, feeding said aqueous solution to a crystalliser/settler, contacting said aqueous solution with one or more antisolvents which force the salt to crystallise, with said antisolvents exhibiting crystal growth inhibiting properties and/or crystallisation and scale inhibiting properties, and/or where one or more crystal growth inhibitors are present either in the antisolvents or the aqueous solution and/or one or more scaling inhibitors are present either in the antisolvents or the aqueous solution, feeding an overflow of the crystalliser/settler comprising one or more antisolvents and an aqueous salt solution to a nanofiltration unit comprising a membrane to separate the one or more antisolvents from the aqueous salt solution, removing the crystallised salt in an aqueous slurry, optionally, recycling the one or more antisolvents to the crystalliser/settler, and optionally, recycling water from the slurry to the first dissolution step and/or to the crystalliser/settler. Preferably, the process is a closed loop process and the salt is sodium chloride. Preferably, the process further comprises a reverse osmosis step before the overflow of the crystalliser/settler is fed to a nanofiltration unit.

摘要翻译： 本发明涉及一种制备盐组合物的方法，其包括以下步骤：向盐源供水以形成包含所述盐的水溶液，将所述水溶液进料至结晶器/沉降器，使所述水溶液与一种或多种抗溶剂接触， 迫使盐结晶，所述抗溶剂具有显示出晶体生长抑制性质和/或结晶和阻垢性质，和/或其中一种或多种结晶生长抑制剂存在于抗溶剂或水溶液中和/或一种或多种结垢 抑制剂存在于抗溶剂或水溶液中，将包含一种或多种抗溶剂和盐水溶液的结晶器/沉降器的溢流物供给到包含膜的纳米过滤单元，以将一种或多种抗溶剂与盐水溶液分离， 在含水浆液中除去结晶盐，任选地再循环一种或多种a 结晶器/沉淀器中的溶剂，以及任选的将水从浆料循环到第一溶解步骤和/或将结晶器/沉降器循环。 优选地，该方法是闭环方法，盐是氯化钠。 优选地，该方法进一步包括反渗透步骤，然后将结晶器/沉降器的溢流送入纳滤单元。