MONOSULFIDE, DISULFIDE, TRISULFIDE AND TETRASULFIDE OF POLYMER, MANUFACTURE AND METHOD OF REMOVING ELEMENTS OF PERIODIC TABLE I,II,VI-VIII GROUP AND IONS AND COMPOUNDS OF TIN AND LEAD FROM SOLUTION

MONOSULFIDE, DISULFIDE, TRISULFIDE AND TETRASULFIDE OF POLYMER, MANUFACTURE AND METHOD OF REMOVING ELEMENTS OF PERIODIC TABLE I,II,VI-VIII GROUP AND IONS AND COMPOUNDS OF TIN AND LEAD FROM SOLUTION

Polymeric mono-, di-, tri- and tetra-sulfides are described having an organopolysiloxane base structure of the units: R1-S1-4-R2 (1) wherein R1 and R2 may be the same or different and represent a group of the formula: R3-SiO3/2 (2) and which base structure may further optionally contain the heteroat...

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Bibliographische Detailangaben
Hauptverfasser: PEETAA KURAINSHIYUMITSUTO, PEETAA PANSUTAA, ROOBERUTO GURAATORU, BUORUFUGANGU BUUDAA
Format: Patent
Sprache:eng
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
THEIR RELEVANT APPARATUS
TRANSPORTING
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Zusammenfassung:Polymeric mono-, di-, tri- and tetra-sulfides are described having an organopolysiloxane base structure of the units: R1-S1-4-R2 (1) wherein R1 and R2 may be the same or different and represent a group of the formula: R3-SiO3/2 (2) and which base structure may further optionally contain the heteroatoms titanium or aluminum, wherein R3 is an alkylene group and the free valencies of the oxygen atoms are saturated by silicon atoms of additional groups of formula (2), optionally with the insertion of cross-linking silicon-, titanium- or aluminum compounds, whereby the ratio of the silicon atoms in formula (2) to the silicon-, titanium- and aluminum atoms of any cross-linking agent may range from 1:0 to 1:10. In addition, processes for obtaining the sulfides and the use of these sulfides for the removal of certain ions from solutions are described.