Liquid/liquid extraction of acidic aqueous streams comprising su

Details Liquid/liquid extraction of acidic aqueous streams comprising su Liquid/liquid extraction of acidic aqueous streams comprising su

1983-03-16

1985-02-12

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ivb metal

423 63, 423522, 423DIG14, 216631, 216681, C01G 2300, B01D 1104, C01B 1790

Patent

active

044990588

ABSTRACT:
Acidic aqueous phases comprising sulfate ion and particularly sulfuric acid values, titanium ion and particularly titanium (IV) values, and iron ion, particularly iron (II) values, and advantageously waste streams emanating from a sulfate process for the production of TiO.sub.2, are extracted with an initial organic phase which comprises at least one neutral organic extractant having the general formula: ##STR1## in which A and B, which may be the same or different, are the groups R.sub.1 or OR.sub.2, wherein R.sub.1 and R.sub.2 are straight or branched chain alkyl, alkenyl, alkynyl, alkoxyalkyl, aryl or alkylaryl radicals, or halogen substituted such radicals; and R is either R.sub.1 or R.sub.2 as above-defined, with R, R.sub.1 and R.sub.2 either being the same or different, or R is a group having the general formula: ##STR2## in which Y is a straight or branched chain alkylene radical, and A and B are as defined above, to provide a final aqueous phase comprising substantially all of said iron (II) values present in said initial aqueous phase and a final organic phase comprising substantially all of said sulfuric acid values and substantially all of said titanium values present in said initial aqueous phase; the respective iron/sulfate/titanium values may then be facilely recovered from their respective final phases.

REFERENCES:
patent: 2589909 (1952-03-01), Weikel
patent: 3067010 (1962-12-01), Long et al.
patent: 3104950 (1963-09-01), Ellis
patent: 3529932 (1970-09-01), Imoto et al.
patent: 4269809 (1981-05-01), Tolley et al.
Tedesco et al., Journal of Inorganic and Nuclear Chemistry, vol. 42, pp. 1033-1036 (1980).
Islam et al., Journal of Inorganic & Nuclear Chemistry, vol. 40, pp. 559-566 (1978).
Chemical Abstracts, vol. 77 (1972), No. 25,421r.
Chemical Abstracts, vol. 85 (1977), No. 127612m.
Chemical Abstracts, vol. 89 (1978), No. 218329y.
Chemical Abstracts, vol. 90 (1979), No. 174062v.
Chemical Abstracts, vol. 90 (1979), No. 189201p.
Chemical Abstracts, vol. 91 (1979), No. 79529q.
Chemical Abstracts, vol. 96 (1982), No. 87928n.

Affiliated with

Also associated with

Rating

Liquid/liquid extraction of acidic aqueous streams comprising su does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid/liquid extraction of acidic aqueous streams comprising su, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid/liquid extraction of acidic aqueous streams comprising su will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1388965