SALT RECOVERY SOLUTION AND PROCESSES OF USE THEREOF

1 . A salt recovery solution suitable for recovering a salt from a first aqueous solution, the salt recovery solution comprising:

a) at least one tertiary amine containing compound; and

b) at least one enolisable carbonyl.

2 .- 57 . (canceled)

58 . The salt recovery solution of claim 1 , wherein the salt recovery solution comprises:

a) at least one tertiary amine containing compound; and

b) at least one enolisable carbonyl of Formula I,

wherein

c) R 1 and R 2 are independently selected from a —C 1 -C 7 alkyl or a —C 3 -C 7 monocyclic; or

d) one of R 1 or R 2 is selected from a —O—(C 1 -C 7 alkyl) and the other is selected from a —C 1 -C 7 alkyl, or

e) R 1 and R 2 together, with the carbonyl of Formula I, form a 3-15 membered monocyclic ketone or a 3-15 membered monocyclic heterocyclic ketone; or

wherein

R 1 and R 2 together with the carbonyl of Formula I form an 8-15 membered aromatic system optionally including one or more heteroatoms selected from S, N or O.

59 . The salt recovery solution of claim 1 , wherein the salt recovery solution comprises at least one enolisable carbonyl of Formula II,

wherein X is a 5-8 membered aromatic monocyclic optionally containing a heteroatom selected from S, N or O;

each R 3 , if present, is selected independently from a halo, a hydroxy, a —NO 2 , a C 1 -C 7 alkyl, or a —O—(C 1 -C 7 alkyl);

R 4 is selected from a halo, a —O—(C 1 -C 7 alkyl); a C 1 -C 7 alkyl optionally substituted with a halo, a hydroxy, a —O—(C 1 -C 7 alkyl) or a C 3 -C 7 monocyclic; or a C 3 -C 7 monocyclic optionally substituted with a halo, a hydroxy, a C 1 -C 7 alkyl, or a —O—(C 1 -C 7 alkyl);

m is 0, 1, 2 or 3 carbons, each carbon being optionally substituted with one or more substituents selected from a halo, hydroxy, a C 1 -C 7 alkyl optionally substituted with a halo or a hydroxy; a C 1 -C 7 alkyl, a —O—(C 1 -C 7 alkyl) or a C 3 -C 7 monocyclic; and

n is 0, 1, 2 or 3.

60 . The salt recovery solution of claim 58 , wherein the salt recovery solution comprises a combination of more than one enolisable carbonyl of Formula I.

61 . The salt recovery solution of claim 59 , wherein the salt recovery solution comprises a combination of more than one enolisable carbonyl of Formula I and Formula II.

62 . The salt recovery solution of claim 1 , wherein the salt recovery solution comprises

(i) a combination of more than one tertiary amine containing compound; or

(ii) at least one tertiary amine containing compound is selected from a conjugated, aliphatic, asymmetric or cyclic tertiary amine; or

(iii) a tertiary amine containing compound selected from the following:

63 . The salt recovery solution of claim 62 , wherein the at least one tertiary amine containing compound is selected from the following:

(i) 1-ethylpyrrolidine, 2-methylpyridine, N-methylpiperidine, and 4-ethylmorpholine; or

(ii) a —N(C 1 -C 7 alkyl) 3 , or

(iv) a —N(C 1 -C 4 alkyl) 3 or

(v) —N(C 2 alkyl) 3 (triethylamine).

64 . The salt recovery solution of claim 58 , wherein R 1 and R 2 of Formula I are independently selected from a —C 1 -C 7 alkyl, preferably methyl and ethyl.

65 . The salt recovery solution of claim 1 , wherein the molar ratio of the at least one tertiary amine containing compound to the one or more enolisable carbonyls are present

(i) in a ratio of about 1:99 or 99:1; (ii) in a ratio of about 1:50 or 50:1;

(iii) in a ratio of about 1:10 or 10:1;

(iv) in a ratio of about 1:5 or 5:1;

(vi) in a ratio of about 1:3 or 3:1;

(vii) in a ratio of about 1:2 or 2:1; or

(viii) in a ratio of about 1:1.

66 . The salt recovery solution of claim 1 , for use in

(i) a non-membrane process;

(ii) a non-osmotic process; or

(iii) a non-membrane and non-osmotic process.

67 . A process for separating a salt from a first aqueous solution, the process comprising the steps of:

(a) adding the salt containing first aqueous solution to a salt recovery solution as defined in claim 1 ; and

(b) allowing the salt to precipitate on passage through the salt recovery solution.

68 . The process of claim 67 , wherein the process includes the further step of adding an additive to the salt recovery solution to further release water held within the salt recovery solution.

69 . The process of claim 68 , wherein the additive is citric acid or a citric acid solution.

70 . The process of claim 67 , wherein the salt recovery solution is recycled for use in a further separation process.

71 . The process of claim 67 , wherein the process is a continuous process.

72 . The process of claim 67 , wherein the process

(i) concentrates the salt containing first aqueous solution;

(ii) is a minimal discharge process;

(i) is a zero-liquid discharge process.

73 . A process for concentrating a salt containing first aqueous solution, the process comprising the steps of:

(a) adding the salt containing first aqueous solution to a salt recovery solution as defined in claim 1 ; and

(b) allowing water from the salt containing aqueous solution to pass into the salt recovery solution.

74 . The process of claim 67 , wherein the salt containing first aqueous solution is sea water or a brine.

75 . The process of claim 67 , wherein the process is

(i) a non-membrane process;

(ii) a non-osmotic process; or

(iii) a non-membrane and non-osmotic process.

76 . The process of claim 73 , wherein the process concentrates the first aqueous solution by

(i) at least 20%;

(ii) at least 30%;

(iii) by at least 40%;

(iv) by at least 50%;

(v) by at least 60%;

(vi) by at least 70%;

(vii) by at least 80%; or

(ix) by at least 90%.

77 . The process of claim 73 , wherein the process is a minimal discharge process or a zero-liquid discharge process.