Grafted mineral carriers for fixing enzymes
AssigneeRhone-Poulenc Industries
InventorsHonore Mazarguil, Francois Meiller, Pierre Monsan
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Abstract
The invention concerns grafted mineral carriers comprising oxides, hydroxides and other insoluble, porous mineral compounds, upon which are grafted haloalkylsilane groups which may or may not be substituted and whose alkyl residue comprises from 3 to 11 carbon atoms. They are used as industrial catalyst carriers, in chromatography and more particularly for fixing enzymes.
Claims8
Grafted mineral carriers comprising oxides, hydroxides or other porous, insoluble mineral compounds having a grain size range of from 40.mu. to 5 mm, a specific surface area of from 2 to 600 sq. m/g, a pore diameter of from 50 to 10,000 A and a pore volume of from 0.5 to 1.8 ml/g in which a mineral carrier having hydroxyl groups is grafted with a substituted or unsubstituted haloalkylsilane having the general formula ##STR2## in which:
- X represents a chlorine, bromine or iodine atom;
- n is an integer of from 3 to 11;
- A, b and C, which are the same or different, are selected from the group consisting of a chlorine atom, a methoxy, ethoxy, methyl or ethyl group, in which at least one of the substituents A, B or C is reacted with an OH group of the carrier.
Dependencies are inferred from the claim text.