Natural Solvent Extraction

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Natural Organic Solvent Extraction Technology

Traditionally, rosin and turpentine are extracted using environmentally unfriendly and labour intensive processes. For example, many production processes employ the use of the environmentally and physically dangerous chemical, Hexane.

Traditional Methods of Pine Chemical Extraction:

Tapping

Crude Wood or Exudates is collected from incisions (tappers) made in the tree trunk which is then distilled into terpenes and rosin (gum rosin & terpenes). This process is seasonal and highly labour intensive. This process if the primary production process used in China and ROW.

Hexane extracted pine chemicals.

Solvent is extracted using petroleum-based solvents such as hexane and then distilled to separate terpenes and rosin (wood rosin & terpenes)

Crude Tall Oil

A byproduct of the pulp making process, is fractionated to produce rosin and terpenes (tall oil rosin & terpenes) whilst CTO is renewable it is an environmentally unfriendly process as it creates serious waste streams with potentially harmful impacts,

Our process:

Our process replaces Hexane with pine terpenes as solvent. The wood terpenes’ natural function is as a solvent that moves the rosin around the tree, making it an extremely effective solvent for removing the rosin and terpenes from wood. By using pine terpenes, we have created a unique, completely environmentally friendly process that makes EQ products suitable for all downstream processing, including food grade products.

We also use stumps and other parts of the tree which would normally be considered a waste product or low-value wood. This allows us to increase our efficiency and productivity, reduce waste, and reduce our carbon footprint. Stumps have high resinous content, and by harvesting these we improve the productivity of the land and encourage natural reforestation.