Emulsion-forming composition
AssigneeMetallgesellschaft Aktiengesellschaft
InventorsKarl Schugerl, Wilfried Gutknecht
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Abstract
An emulsion-forming composition for forming an emulsion for use in a process for selectively recovering germanium or arsenic from an aqueous solution thereof by liquid membrane technology is disclosed, said composition consisting essentially of: a solvent mixture consisting essentially of specified amounts of a hydrocarbon which is a predominantly straight-chain saturated C.sub.16 -C.sub.20 hydrocarbon or kerosine, a mononuclear aromatic hydrocarbon (pref. xylene), and a halogenated C.sub.1 -C.sub.5 hydrocarbon (pref. CCl.sub.4); and more than 0.1% by weight of an oil-soluble polyisobutylene-succinic anhydride/polyamine condensation product.
Claims3
An emulsion-forming composition for forming an emulsion for use in a process for selectively recovering geranium or arsenic from an aqueous solution thereof by liquid membrane technology, said composition consisting essentially of:
- a solvent mixture consisting essentially of:
- 70 to 75% by volume of a hydrocarbon which is a predominantly straight-chain saturated C.sub.16 -C.sub.20 hydrocarbon or kerosine
- 20 to 25% by volume of a mononuclear aromatic hydrocarbon, and
- 1 to 5% by volume of a halogenated C.sub.1 -C.sub.5 hydrocarbon;
- and
- more than 0.1% by weight of an oil-soluble polyisobutylenesuccinic anhydride/polyamine condensation product surfactant.
Dependencies are inferred from the claim text.