公开(公告)号：US20140227790A1

公开(公告)日：2014-08-14

申请号：US13762962

申请日：2013-02-08

Applicant: ECOLAB USA INC.

Inventor： Kim R. Smith ,  Mark P. Peterson ,  Keith E. Olson

IPC: C11D17/00

CPC classification number: C11D17/0039 ,  C11D3/02 ,  C11D3/044 ,  C11D7/02 ,  C11D7/06

Abstract: A method of creating a protective coating on an alkali metal hydroxide-containing solid is provided. The method includes providing carbon dioxide to an alkali metal hydroxide-containing solid and allowing the alkali metal hydroxide and carbon dioxide to react thereby forming a carbonate or bicarbonate-containing layer on the exterior of the solid wherein the carbonate or bicarbonate-containing layer is non-hygroscopic and water soluble, and wherein greater than 80% of the hydroxide in the hydroxide-containing solid does not react with the carbon dioxide, and further wherein the alkali metal hydroxide-containing solid is substantially free of lithium hydroxide. A method of testing for the presence of carbonate-containing coating on an alkali metal hydroxide containing solid is also provided. The method includes exposing the coated solid to 95 weight percent ethanol, collecting the ethanol effluent and testing the effluent for alkali metal hydroxide. A suitably coated solid does not have dissolved alkali metal hydroxide in the ethanol effluent or is substantially free of alkali metal hydroxide.

Abstract translation: 提供了在含碱金属氢氧化物的固体上形成保护涂层的方法。 该方法包括向含碱金属氢氧化物的固体提供二氧化碳，并允许碱金属氢氧化物和二氧化碳反应，从而在固体外部形成含碳酸盐或含碳酸氢盐的层，其中碳酸盐或碳酸氢盐层不是 并且其中含氢氧根固体中大于80％的氢氧化物不与二氧化碳反应，并且其中所述含碱金属氢氧化物的固体基本上不含氢氧化锂。 还提供了在含碱金属氢氧化物的固体上测试含碳酸盐涂层的存在的方法。 该方法包括将涂覆的固体暴露于95重量％的乙醇中，收集乙醇流出物并测试碱金属氢氧化物的流出物。 合适涂布的固体在乙醇流出物中不具有溶解的碱金属氢氧化物或基本上不含碱金属氢氧化物。

公开(公告)号：US11959046B2

公开(公告)日：2024-04-16

申请号：US16227585

申请日：2018-12-20

Applicant: Ecolab USA Inc.

Inventor： Kim R. Smith ,  Mark P. Peterson ,  Keith E. Olson

IPC: C11D17/00 ,  C11D3/02 ,  C11D3/04 ,  C11D7/02 ,  C11D7/06

CPC classification number: C11D17/0039 ,  C11D3/02 ,  C11D3/044 ,  C11D7/02 ,  C11D7/06

Abstract: A method of creating a protective coating on an alkali metal hydroxide-containing solid is provided. The method includes providing carbon dioxide to an alkali metal hydroxide-containing solid and allowing the alkali metal hydroxide and carbon dioxide to react thereby forming a carbonate or bicarbonate-containing layer on the exterior of the solid wherein the carbonate or bicarbonate-containing layer is non-hygroscopic and water soluble, and wherein greater than 80% of the hydroxide in the hydroxide-containing solid does not react with the carbon dioxide, and further wherein the alkali metal hydroxide-containing solid is substantially free of lithium hydroxide. A method of testing for the presence of carbonate-containing coating on an alkali metal hydroxide containing solid is also provided. The method includes exposing the coated solid to 95 weight percent ethanol, collecting the ethanol effluent and testing the effluent for alkali metal hydroxide. A suitably coated solid does not have dissolved alkali metal hydroxide in the ethanol effluent or is substantially free of alkali metal hydroxide.

公开(公告)号：US20190194583A1

公开(公告)日：2019-06-27

申请号：US16227585

申请日：2018-12-20

Applicant: Ecolab USA Inc.

Inventor： Kim R. Smith ,  Mark P. Peterson ,  Keith E. Olson

IPC: C11D17/00 ,  C11D7/06 ,  C11D3/02 ,  C11D3/04 ,  C11D7/02

CPC classification number: C11D17/0039 ,  C11D3/02 ,  C11D3/044 ,  C11D7/02 ,  C11D7/06

Abstract: A method of creating a protective coating on an alkali metal hydroxide-containing solid is provided. The method includes providing carbon dioxide to an alkali metal hydroxide-containing solid and allowing the alkali metal hydroxide and carbon dioxide to react thereby forming a carbonate or bicarbonate-containing layer on the exterior of the solid wherein the carbonate or bicarbonate-containing layer is non-hygroscopic and water soluble, and wherein greater than 80% of the hydroxide in the hydroxide-containing solid does not react with the carbon dioxide, and further wherein the alkali metal hydroxide-containing solid is substantially free of lithium hydroxide. A method of testing for the presence of carbonate-containing coating on an alkali metal hydroxide containing solid is also provided. The method includes exposing the coated solid to 95 weight percent ethanol, collecting the ethanol effluent and testing the effluent for alkali metal hydroxide. A suitably coated solid does not have dissolved alkali metal hydroxide in the ethanol effluent or is substantially free of alkali metal hydroxide.

公开(公告)号：US10184097B2

公开(公告)日：2019-01-22

申请号：US13762962

申请日：2013-02-08

Applicant: Ecolab USA Inc.

Inventor： Kim R. Smith ,  Mark P. Peterson ,  Keith E. Olson

IPC: G01N21/78 ,  C11D17/00 ,  C11D3/02 ,  C11D3/04 ,  C11D7/02 ,  C11D7/06

Abstract: A method of creating a protective coating on an alkali metal hydroxide-containing solid is provided. The method includes providing carbon dioxide to an alkali metal hydroxide-containing solid and allowing the alkali metal hydroxide and carbon dioxide to react thereby forming a carbonate or bicarbonate-containing layer on the exterior of the solid wherein the carbonate or bicarbonate-containing layer is non-hygroscopic and water soluble, and wherein greater than 80% of the hydroxide in the hydroxide-containing solid does not react with the carbon dioxide, and further wherein the alkali metal hydroxide-containing solid is substantially free of lithium hydroxide. A method of testing for the presence of carbonate-containing coating on an alkali metal hydroxide containing solid is also provided. The method includes exposing the coated solid to 95 weight percent ethanol, collecting the ethanol effluent and testing the effluent for alkali metal hydroxide. A suitably coated solid does not have dissolved alkali metal hydroxide in the ethanol effluent or is substantially free of alkali metal hydroxide.