Acid Mist Mitigation Agents for Electrolyte Solutions

Patent metadata

Field	Value
Publication number	US-2017283373-A1
Application number	US-201715629416-A
Country	US
Kind code	A1
Filing date	Jun 21, 2017
Priority date	Oct 6, 2006
Publication date	Oct 5, 2017
Grant date	—

Abstract

Sulfonate-, sulfate-, or carboxylate-capped, alkoxylated anti-misting agents having the stricture: 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

1 . An anti-misting compound comprising formula:
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 a compound selected from the group consisting of:
R 1 C(CH 2 O) 3   (II),

where R 1 is H, methyl, ethyl, or propyl;
C(CH 2 O) 4   (III);

O(CH 2 ) r O   (VII),

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

2 . The anti-misting compound according to claim 1 , wherein n is 2-to-15.

3 . The anti-misting compound according to claim 1 , wherein R is the compound of formula (II), and m is 1.5-to-3.

4 . (canceled)

5 . The anti-misting compound according to claim 1 , wherein AO is selected from ethyleneoxy,1,2-propyleneoxy, and mixtures thereof.

6 . The anti-misting compound according to claim 5 , wherein AO is ethyleneoxy.

7 . An anti-misting compound according to claim 5 , wherein n is 2-to-15.

8 . The anti-misting compound according to claim 1 , wherein Y is a hydrogen, potassium, sodium or ammonium cation.

9 . An aqueous electrolyte solution comprising:
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 an anti-misting compound Formula (IX):
R 3 N + (CH 3 ) 2 R 4   (IX),

wherein

R 3 is a group selected from:
C 6 -C 12 -alkyl (X); and
R 5 C(O)NH(CH 2 ) z (XI),
where R 5 is a C 1 -C 6 -alkyl, and z is 2 or 3; and

R 4 is a group selected from:
CH 2 CO 2 (XII); and
CH 2 CH(R 6 )CH 2 SO 3 − (XIII),
where R 6 is either H or OH.

10 . The aqueous electrolyte solution according to claim 9 , wherein, in the compounds of Formula (IX), R 3 represents C 6 -C 12 -alkyl; and R 4 represents CH 2 CO 2 − .

11 . The aqueous electrolyte solution according to claim 10 , wherein R 3 is octyl, an octyl/decyl mixture, or decyl; and R 4 represents CH 2 CO2

12 . The aqueous electrolyte solution according to claim 11 , wherein R 3 is decyl.

13 .- 17 . (canceled)

18 . An anti-misting compound having the formula:
R 3 C (O)NH(CH 2 ) z N + (CH 3 ) 2 CH 2 CHR 4 CH 2 SO 3 − ,
wherein
R 3 represents C 1 -C 8 -alkyl,
R 4 represents either H or OH, and
z is 2 or 3.

19 . An aqueous electrolyte solution comprising:
A) a metal or metalloid in ionic or dispersed metallic form, wherein the metal is selected from the group consisting of copper, nickel and zinc; and B) an amount effective to inhibit mist formation from the electrolyte solution of a compound selected from sulfobetaine anti-misting agents of formula:
R 3 C(O)NH(CH 2 ) z N + (CH 3 ) 2 CH 2 CHR 4 CH 2 SO 3 − ,

wherein
R 3 represents C 1 -C 8 -alkyl,
R 4 represents either H or OH, and
z is 2 or 3.

Assignees

• Basf Se

Inventors

• Virnig Michael
• Bender Jack
• Rebrovic Louis

Classifications

• C07C309/10

  with the oxygen atom of at least one of the etherified hydroxy groups further bound to an acyclic carbon atom · CPC title

• C25D1/00

  Electroforming · CPC title

• C25C1/12

  of copper · CPC title

• C25D3/02

  from solutions (C25D5/34 - C25D5/46 take precedence) · CPC title

• C07C309/14 Primary

  containing amino groups bound to the carbon skeleton · CPC title