Acid mist mitigation agents for electrolyte solutions

Patent metadata

Field	Value
Publication number	US-9714218-B2
Application number	US-201514747615-A
Country	US
Kind code	B2
Filing date	Jun 23, 2015
Priority date	Oct 6, 2006
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

Sulfonate-, sulfate-, or carboxylate-capped, alkoxylated anti-misting agents having the structure: R((AO) n X) m ((AO) n H) p , and methods of suppressing mist from electrolyte solutions by adding a mist-suppressing amount of one or more compounds selected from the group consisting of compounds of the Formulas R((AO) n X) m ((AO) n H) p and R 3 N + (CH 3 ) 2 R 4 , and mixtures thereof, to electrolyte solutions.

First claim

What is claimed is:

1. An aqueous electrolyte solution containing:
A) a metal, selected from the group consisting of copper, nickel and zinc, in ionic or dispersed metallic form; and
B) an amount effective to inhibit mist formation from the electrolyte solution of one or more anti-misting compounds selected from the group consisting of compounds of Formula (1), compounds of Formula (IX), and mixtures thereof:
R((AO) n B) m ((AO) n H) p   (I),

wherein
each AO group is, independently, an alkyleneoxy group selected from ethyleneoxy, 1,2-propyleneoxy, 1,2-butyleneoxy, and styryleneoxy groups;
n is an integer from 0-to-40;
m is an integer from 1 to the total number of —OH hydrogens in the R group prior to alkoxylation;
p is an integer such that the sum of m plus p equals the number of —OH hydrogens in the R group prior to alkoxylation;
B is SO 3 Y, (CH 2 ) q SO 3 Y, CH 2 CHOHCH 2 SO 3 Y, or CH 2 CH(CH 3 )OSO 3 Y,
where q is an integer from 2-to-4, and Y is a cation; and
R is
O(CH 2 ) r O  (VII),

where r is a number from 2-to-6; or
O(CH(CH 3 )CH 2 )O  (VIII).

2. The aqueous electrolyte solution according to claim 1 , wherein the anti-misting compound is present in an amount of 2 to 100 ppm based on the electrolyte composition.

3. The aqueous electrolyte solution according to claim 1 , wherein the anti-misting compound is present in an amount of 2 to 30 ppm based on the electrolyte composition.

4. The aqueous electrolyte solution according to claim 1 , wherein the anti-misting compound is present in an amount of 5 to 25 ppm based on the electrolyte composition.

Assignees

• Basf Se

Inventors

• Virnig Michael
• Bender Jack
• Rebrovic Louis

Classifications

• C25C1/12

  of copper · CPC title

• C07C309/14 Primary

  containing amino groups bound to the carbon skeleton · CPC title

• C25D21/04

  Removal of gases or vapours {; Gas or pressure control} · CPC title

• C25D3/38

  of copper · CPC title

• C25D1/00

  Electroforming · CPC title