{"id":3011,"date":"2023-03-03T13:35:58","date_gmt":"2023-03-03T12:35:58","guid":{"rendered":"https:\/\/www.ctp.be\/expertises\/mineral-processing\/separation-electrostatique\/"},"modified":"2024-05-31T14:40:55","modified_gmt":"2024-05-31T12:40:55","slug":"electrostaticseparation","status":"publish","type":"page","link":"https:\/\/www.ctp.be\/en\/expertise\/mineral-processing\/electrostaticseparation\/","title":{"rendered":"Electrostatic Separation"},"content":{"rendered":"

[vc_row full_width=”stretch_row” css=”.vc_custom_1710499293196{background-image: url(https:\/\/www.ctp.be\/files\/uploads\/2023\/03\/mineral-processing-alt.jpg?id=681) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}” el_class=”pt-lg-30 pt-md-20″][vc_column el_class=”pt-0″][vc_row_inner equal_height=”yes”][vc_column_inner el_class=”py-3 py-md-4 ps-2 ps-lg-5 ps-1 ps-lg-7 ps-xl-5 ps-xxl-7 pe-2 pe-lg-6 enlarge-l” width=”2\/3″ css=”.vc_custom_1677842232956{background-color: #ffffff !important;}”][vc_column_text css_animation=”fadeInDown” el_class=”subtitle brun”]The techniques of electrostatic separatio<\/strong>n exploit the differences in the electrical conductivity of the particles after being charged and the appearance of positive or negative charges on their surfaces.[\/vc_column_text][vc_column_text el_class=”nocolor”]The charging method varies depending on the equipment and the application. A system of attraction or repulsion proportional to this charge enables their separation. It is imperative that the materials are absolutely dry.<\/p>\n

Eddy currents are produced by an alternating magnetic field by a polarity device (a wheel with magnets with alternate polarities) rotating within a conveyor drum. They cause a repulsion on the part of the elements which conduct electricity (particularly aluminium, copper and magnesium).<\/p>\n

Standard electrostatic separators subject the particles to an ion bombardment generated by a very high-voltage electrode (15 to 30 kV). These charged particles are in contact with a grounded drum and are discharged at speeds which are different depending on their conductivity, thereby enabling their separation.<\/p>\n

Triboelectric separators use a charging method based on the particles intensively rubbing against each other, with some being charged positively and the others negatively. This technique thereby allows a preferential sorting of the binary mixtures of the particles. It is quasi-exclusively dedicated to the sorting of plastics (for example for the mixtures HDPE\/PP, PET\/PVC, PVC\/rubber, PP\/PS, ABS\/PMMA, HIPS\/ABX, PVC\/PE and many others).[\/vc_column_text]\n

\n \n\n \n \n \n \n
\n Equipments <\/th>\n \n <\/th>\n \n Level <\/th>\n \n Input <\/th>\n \n Capacity <\/th>\n <\/tr>\n
\n Eddy current separator <\/td>\n \n <\/td>\n \n Pilot <\/td>\n \n 8 - 50 mm <\/td>\n \n 50 to 250 kg\/h <\/td>\n <\/tr>\n
\n Electrostatic separator <\/td>\n \n <\/td>\n \n Laboratory <\/td>\n \n 100 \u00b5m - 10 mm <\/td>\n \n 50 kg\/h <\/td>\n <\/tr>\n
\n Triboelectric separator <\/td>\n \n <\/td>\n \n Pilot <\/td>\n \n 2 - 10 mm <\/td>\n \n 500 kg\/h to 1 t\/h <\/td>\n <\/tr>\n <\/table>\n<\/div>