公开(公告)号：US5545394A

公开(公告)日：1996-08-13

申请号：US104863

申请日：1993-08-10

Applicant: Kenneth M. Doxsee

Inventor： Kenneth M. Doxsee

IPC: B01D9/02 ,  B01D9/00 ,  B82B1/00 ,  C01F11/18 ,  C01G5/02 ,  C09K3/00 ,  C30B7/00 ,  G03C1/015 ,  G03C1/035 ,  C01B1/00 ,  C01F7/34 ,  C22B13/00

CPC classification number: B82Y30/00 ,  B01D9/00 ,  B82Y10/00 ,  C01F11/183 ,  C01F11/184 ,  C01G5/02 ,  C30B29/10 ,  C30B7/00 ,  G03C1/015 ,  G03C1/035

Abstract: Methods and reaction systems are disclosed that are adapted for forming crystallites having novel crystal habits and/or morphologies compared to conventional crystallites of the same chemical composition. The methods and reaction systems involve chemical reactions between at least two reactant compounds occurring in a liquid (or gel) that form insoluble crystallite products. At least one of the reactants is rendered soluble in a solvent in which the reactant is not normally soluble by adding an agent that forms soluble molecular complexes of the agent and the reactant. The complexing agent not only facilitates dissolution of the reactant in the solvent but also plays a role in how the faces of crystals comprising the crystallite product are enlarged during formation of the product. Products having such altered crystallite structure have a number of possible uses.

Abstract translation: 公开了与相同化学成分的常规微晶相比，适于形成具有新颖晶体习性和/或形态的微晶的方法和反应体系。 方法和反应体系包括在形成不溶性微晶产物的液体（或凝胶）中发生的至少两种反应物之间的化学反应。 至少一种反应物通过加入形成试剂和反应物的可溶性分子复合物的试剂而溶于其中反应物通常不可溶的溶剂中。 络合剂不仅促进了反应物在溶剂中的溶解，而且还在产物形成过程中如何使包含微晶产品的晶体的面增大的方式起作用。 具有这种改变的微晶结构的产品具有许多可能的用途。

公开(公告)号：US5853686A

公开(公告)日：1998-12-29

申请号：US695800

申请日：1996-08-12

Applicant: Kenneth M. Doxsee

Inventor： Kenneth M. Doxsee

IPC: B01D9/02 ,  B01D9/00 ,  B82B1/00 ,  C01F11/18 ,  C01G5/02 ,  C09K3/00 ,  C30B7/00 ,  G03C1/015 ,  G03C1/035

CPC classification number: C01F11/184 ,  B01D9/00 ,  B82Y10/00 ,  B82Y30/00 ,  C01F11/183 ,  C01G5/02 ,  C30B29/10 ,  C30B7/00 ,  G03C1/015 ,  G03C1/035

Abstract: Methods are disclosed in which first and second reactant salts and, optionally, a complexing agent are added to a non-aqueous reaction solvent to form a reaction system. The reactant salts, which are substantially soluble and reactive with each other in water to form a first crystallite of calcium carbonate, are present in the reaction solvent in relative amounts that are sufficient to form a desired amount of the calcium carbonate in the reaction system. The complexing agent, if present, is a crown ether or other cyclic or acyclic polydentate chelating agent that, in the reaction solvent, forms chelation complexes with at least one of the reactant salts. Reaction of the first and second reactant salts in the reaction solvent forms a second crystallite precipitate comprising crystals of calcium carbonate having a different habit or morphology from calcium carbonate crystals in the first crystallite that would otherwise be formable in water by reaction of similar amounts of the first and second reactant salts.

Abstract translation: 公开了将第一和第二反应物盐和任选的络合剂加入非水反应溶剂以形成反应体系的方法。 基本上可溶于水的反应物盐形成第一碳酸钙晶体的反应物盐以足以在反应体系中形成所需量的碳酸钙的相对量存在于反应溶剂中。 络合剂（如果存在）是冠醚或其它环状或无环多齿螯合剂，其在反应溶剂中与至少一种反应物盐形成螯合配合物。 第一和第二反应物盐在反应溶剂中的反应形成第二微晶沉淀物，其包含具有不同习惯或形态的碳酸钙晶体，所述晶体与第一微晶中的碳酸钙晶体不同，否则在水中可通过相似量的 第一和第二反应物盐。

公开(公告)号：US5853691A

公开(公告)日：1998-12-29

申请号：US695784

申请日：1996-08-12

Applicant: Kenneth M. Doxsee

Inventor： Kenneth M. Doxsee

IPC: B01D9/02 ,  B01D9/00 ,  B82B1/00 ,  C01F11/18 ,  C01G5/02 ,  C09K3/00 ,  C30B7/00 ,  G03C1/015 ,  G03C1/035 ,  C01B9/00

CPC classification number: B01D9/00 ,  B82Y10/00 ,  B82Y30/00 ,  C01F11/183 ,  C01F11/184 ,  C01G5/02 ,  C30B29/10 ,  C30B7/00 ,  G03C1/015 ,  G03C1/035

Abstract: Methods are disclosed in which first and second reactant salts and a complexing agent are added to a non-aqueous reaction solvent in which the complexing agent is soluble. The complexing agent is a crown ether or other cyclic or acyclic polydentate chelating agent that, in the reaction solvent, forms chelation complexes with at least one of the reactant salts. The reactant salts, which are substantially soluble and reactive with each other in water to form a first crystallite of silver halide, are present in the reaction solvent in relative amounts that are sufficient to form a desired amount of the silver halide in the reaction solvent. Reaction of the first and second reactant salts in the reaction solvent forms a second crystallite precipitate comprising crystals of silver halide having a different habit or morphology from silver halide crystals in the first crystallite that would otherwise be formable in water by reaction of similar amounts of the first and second reactant salts.

Abstract translation: 公开了将第一和第二反应物盐和络合剂加入其中络合剂可溶的非水反应溶剂中的方法。 络合剂是冠醚或其它环状或无环多齿螯合剂，其在反应溶剂中与至少一种反应物盐形成螯合配合物。 基本上可溶于水的反应物盐形成卤化银的第一晶体的反应物盐以相当的量存在于反应溶剂中，其量足以在反应溶剂中形成所需量的卤化银。 第一和第二反应物盐在反应溶剂中的反应形成第二微晶沉淀，其包含具有不同习惯或形态的卤化银晶体，所述卤化银具有与第一微晶中卤化银晶体不同的习惯或形态，否则可能在水中形成水，通过相似量的 第一和第二反应物盐。