Substituted thiourea complexing agent and a method for...

Details Substituted thiourea complexing agent and a method for... Substituted thiourea complexing agent and a method for...

2005-03-15

2005-03-15

Bos, Steven (Department: 1754)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

C423S024000, C564S017000, C564S026000, C564S029000

Reexamination Certificate

active

06866833

ABSTRACT:
A substituted thiourea having the general formulacharacterized in that each of R1and R2independently comprises an alkyl, alkaryl or aryl group or a substituted derivative thereof, and contains at least one fluorine atom, and in that each of R3and R4is selected from the group which consists of H, alkyl, alkaryl and aryl and substituted derivatives thereof, including fluorine-containing derivatives. A method for producing the substituted thiourea is disclosed, and a method for extracting a noble metal such as gold from a matrix by treating the matrix with the substituted thiourea is also disclosed.

REFERENCES:
patent: 3546344 (1970-12-01), Martin et al.
patent: 4468380 (1984-08-01), O'Doherty et al.
patent: 5021412 (1991-06-01), Nakaya et al.
patent: 431491 (1967-08-01), None
patent: 4016071 (1990-11-01), None

Affiliated with

Also associated with

Rating

Substituted thiourea complexing agent and a method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Substituted thiourea complexing agent and a method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substituted thiourea complexing agent and a method for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3423051