Composition for application as a flotation frother
View Patent ↗The present disclosure provides a froth flotation composition including a cycloaliphatic alcohol and a reaction product of the cycloaliphatic alcohol and propylene oxide. The froth flotation composition is especially suited for use in ore and coal flotation processes.
1. A froth flotation composition comprising:
(a) a cycloaliphatic alcohol; and
(b) a reaction product of the cycloaliphatic alcohol (a) and propylene oxide.
2. The froth flotation composition according to claim 1 , wherein the cycloaliphatic alcohol is a monofunctional alcohol of the formula (I)
R—OH (I)
where R is a cycloaliphatic radical group having from 3-20 carbon atoms.
3. The froth flotation composition according to claim 1 , wherein the reaction product comprises at least one compound of the formula (II)
where R is defined as above, R 1 is independently hydrogen or methyl and n is an integer greater than or equal to 1; with the proviso that in each ether unit one R 1 must be methyl while the other R 1 must be hydrogen.
4. The froth flotation composition according to claim 3 , wherein the reaction product comprises a compound of the formula (V)
and/or a compound of the formula (VI)
where n is an integer from 1 to 10.
5. The froth flotation composition according to claim 1 further comprising one or more additives.
6. The froth flotation composition according to claim 1 , wherein a weight of the cycloaliphatic alcohol is between about 15% and 65% of the total weight of the froth flotation composition.
7. The froth flotation composition according to claim 1 , wherein a weight of the reaction product is between about 30% and 85% of the total weight of the froth flotation composition.
8. The froth flotation composition according to claim 2 , wherein R in the formula (I) is a cycloaliphatic radical group having from 3-8 carbon atoms.
9. The froth flotation composition according to claim 1 , wherein the cycloaliphatic alcohol is a monofunctional alcohol having a formula:
R—OH
where R is cyclopropyl, cyclobutyl, cyclohexyl, cyclooctyl, cyclodecyl, cyclododecyl, or different isomers of methylcyclohexyl, dimethylcyclohexyl, trimethylcyclohexyl and t-butylcyclohexyl.
10. The froth flotation composition according to claim 4 , wherein n is an integer from 1 to 5.
11. The froth flotation composition according to claim 2 , wherein the reaction product comprises at least one compound of the formula (II)
where R is defined as above, R 1 is independently hydrogen or methyl and n is an integer greater than or equal to 1; with the proviso that in each ether unit one R 1 must be methyl while the other R 1 must be hydrogen.
12. The froth flotation composition according to claim 11 , wherein the reaction product comprises a compound of the formula (V)
and/or a compound of the formula (VI)
where n is an integer from 1 to 10.
13. A method of recovering particles from a slurry, comprising:
adding a froth flotation composition to a slurry containing particles, wherein the froth flotation composition comprises:
a cycloaliphatic alcohol; and
a reaction product of the cycloaliphatic alcohol and propylene oxide;
forming a froth containing the particles; and
collecting the froth containing the articles.
14. The method of claim 13 , wherein the particles are clean coal particles.
15. The method of claim 13 , wherein the particles are mineral particles.
16. The method of claim 13 , wherein the cycloaliphatic alcohol is a monofunctional alcohol of the formula (I)
R—OH (I)
where R is a cycloaliphatic radical group having from 3-20 carbon atoms, and wherein the reaction product comprises at least one compound of the formula (II)
where R is defined as above, R 1 is independently hydrogen or methyl and n is an integer greater than or equal to 1; with the proviso that in each ether unit one R 1 must be methyl while the other R 1 must be hydrogen.
17. The method of claim 13 , wherein the reaction product comprises at least one compound of the formula (II)
where R is defined as above, R 1 is independently hydrogen or methyl and n is an integer greater than or equal to 1; with the proviso that in each ether unit one R 1 must be methyl while the other R 1 must be hydrogen.
18. The method of claim 17 , wherein the reaction product comprises a compound of the formula (V)
and/or a compound of the formula (VI)
where n is an integer from 1 to 10.