Solvent extraction is the process of diffusing a solvent into oil-bearing cells resulting in a mixed solution of oil and solvent. It is one of the most popular methods of separating oils and fats from oil-bearing materials as opposed to other mechanical processes (such as expellers, hydraulic press, etc...) primarily due to the high percentage of oil recovered which can range upwards of 99%+ as opposed to the 85%+ of other methods. The common solvents of choice range from butane, hexane, and pentane among a handful of others, each of which is favored because of several factors: commercial economics, a low boiling point, and in the case of consumption grade product, a non-toxic impact. Distillation of the resulting oil mixture allows recovery of the alkane hydrocarbons (your "hex/but/propane") to be reused at minimal costs.
Tri Clamp Material Columns
Material columns are one of the most integral parts of any extraction system and commonly found between the transfer vessel (solvent tanks) and the extraction tank or collection plate. Inside a column the raw trim (plant matter) is packed down and a chilled solved, such as butane/hexane/propane/etc... is pushed through. Keeping the plant matter chilled within a range of -20°C to -50°C can produce a higher extraction rate. Tri Clamp screen gaskets placed at both ends of the column retain the plant material inside the column where the solvent now infused with extract can be collected.
Jacketed vs Sleeved Columns
Often the columns are jacketed or sleeved to help maintain sub-zero temperatures. The jacketed columns can be filled with chilled alcohol, liquid nitrogen (LN2), or any counter flow liquid to drastically reduce the temperature of the matter inside the column itself. Jacketed columns come with two 1/2 inch FNPTs for input and output. Similarly, sleeved material columns aid temperature regulation, but the chilling medium is more static. Dry ice also becomes an option in a sleeved system.
Glacier Tanks will accept returns of website standard stocking items, but only if:
The item is new, unused, and in resalable condition;
You notify Glacier Tanks and request a return authorization within 30 days of your receipt of the item;
You return the item to Glacier Tanks, postage/shipping prepaid within 5 days of Glacier Tanks' return authorization (RMA);
Once your items have been received by Glacier Tanks and verified to be unused, we will refund your purchase price, less shipping costs. Returns will incur a 15% restocking fee. Return shipping costs are your responsibility and shall not be paid by Glacier Tanks.
The following items are non-returnable:
Special or Discounted items - labeled by button color:
All Gaskets & Seals
Please be sure you understand and agree to any drawings supplied to you prior to purchase of custom or special order items. Payment of deposits for custom or special order items indicates your approval and acceptance of such custom or special order items.