Sulfur-containing hydrocarbon compounds and process of using sam

Details Sulfur-containing hydrocarbon compounds and process of using sam Sulfur-containing hydrocarbon compounds and process of using sam

1990-09-24

1991-08-13

Dawson, Robert A.

Liquid purification or separation

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Material

55386, 2101982, 210670, 210679, 210681, 210688, 502401, 556427, B01D 3900, B01D 1508

Patent

active

050394193

ABSTRACT:
The invention has compositions of matter and process aspects.
The compositions of matter aspect relate to two classes of new organic compounds, viz., A. intermediates which are sulfur-containing hydrocarbons covalently bonded to trialkoxysilane and B. that class of intermediates covalently bonded to an inorganic matrix, e.g., silica, silica gel, glass, glass fibers, alumina, nickel oxide, zirconia, and titania. The process aspect comprises two processes, viz., (1) a process for making the two new classes of compounds A and B, and (2) the process of removing and concentrating certain ions, such as noble metal ions and other transition metal ions, from solution thereof admixed with other ions which may be present in much higher concentrations by forming a complex of the desired ion(s) with a compound of class B, e.g., by flowing the solution through a chromatography column packed with the compound, breaking the complex, e.g., by flowing a receiving liquid through the column in much smaller amount than the amount of solution passed through it to remove and concentrate the desired ion(s) in solution in the receiving liquid and recovering the desired ion(s) from the receiving liquid.

REFERENCES:
patent: 3186965 (1965-06-01), Plueddemann
patent: 4005024 (1977-01-01), Rodriguez et al.
patent: 4650784 (1987-03-01), Ramsden et al.
patent: 4959153 (1990-09-01), Bradshaw et al.

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