Washing a solution is precisely like extracting it, only that you discard the washing as opposed to keeping it when you extract.
Separatory Funnel Extraction Procedure (http://orgchem.colorado.edu/hndbksupport/ext/extprocedure.html)
(http://orgchem.colorado.edu/hndbksupport/ext/extprocedure.html)
Nad how do i remove the solvent under vacuum?
Reading the question I think I can assume that you don't have a rotary evaporator (Rotovap). A Rotovap is commonly used to remove low boiling organic chemicals, usually solvents, from a mixture of compounds. The solvents or low boiling compounds are removed by a simple distillation. The Rotovap is designed to be operated under a vacuum (to lower a compound's boiling point) and to heat the sample at the same time. A cold finger is used to condense the vapors to a liquid, which are trapped in a separate flask.
Of course if you don't have a Rotovap, you could set up for vacuum distillation and use magnetic stirring to substitute for the rotation in a Rotavap.
The higher the vacuum the lower the boiling point of the solvent will be. You can calculate the boiling point of your solvent under vacuum using a Nomograph. Visit the following link on Rhodium's page for enlightment.
https://www.thevespiary.org/rhodium/Rhodium/chemistry/equipment/nomograph.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/equipment/nomograph.html)
I don't have shares in Zubrick's book ;) , but again I can recommend the book to gain understanding about several kinds of distillation techniques.
Buy the book man and study!