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US 9,068,144 B2Granted
Process for extracting seed oil comprising grinding seeds in a solvent
OwnerOlev Trassinventor
Life of this patent
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Abstract
A process for extracting seed-oil from an oil-containing seed product comprises (a) providing the seed product to a grinder; (b) providing a first liquid comprising a solvent to the grinder; (c) grinding the seed product and the first liquid to yield a slurry; (d) subjecting the slurry to a slurry extraction and slurry separation step to yield a processed seed product and a liquid product comprising seed-oil and solvent; and (e) subjecting the liquid product to an oil separation step to at least partially separate the seed-oil from the solvent.
Claims29
A process for extracting seed-oil from an oil-containing seed product, comprising:
- a) providing the seed product to a grinder;
- b) providing a first liquid comprising hexane to the grinder;
- c) grinding the seed product and the first liquid to yield a slurry;
- d) subjecting the slurry to a slurry extraction and slurry separation step to yield a processed seed product and a liquid product, the liquid product comprising seed-oil and hexane;
- and
- e) subjecting the liquid product to an oil separation step to at least partially separate the seed-oil from the hexane to obtain a seed-oil product;
- wherein step (d) comprises mixing the slurry with a feed liquid comprising hexane to yield a secondary slurry, and processing the secondary slurry in a hydrocyclone to yield the liquid product and an outlet slurry.
4 more elements
A process for extracting seed-oil from an oil-containing seed product, comprising:
- a) providing the seed product to a grinder;
- b) providing a first liquid comprising a solvent to the grinder, and wherein the solvent is selected from the group consisting of;
- hexane, methyl alcohol, ethyl alcohol, propyl alcohol, iso-propyl alcohol, petroleum ether, other solvents in the hexane series, and mixtures of the foregoing;
- c) grinding the seed product and the liquid to yield a slurry;
- d) subjecting the slurry to a slurry extraction and slurry separation step to yield a processed seed product and a liquid product, the liquid product comprising seed-oil and the solvent;
- and
- e) subjecting at least a first portion of the liquid product to an oil separation step to separate the seed-oil from the solvent to obtain a seed-oil product;
- wherein step (b) comprises recycling at least a second portion of the liquid product to the grinder.
5 more elements
A process for extracting seed-oil from an oil-containing seed product, comprising:
- a) providing the seed product to a grinder;
- b) providing a first liquid comprising a solvent to the grinder, and wherein the solvent is selected from the group consisting of;
- hexane, methyl alcohol, ethyl alcohol, propyl alcohol, iso-propyl alcohol, petroleum ether, other solvents in the hexane series, and mixtures of the foregoing;
- c) grinding the seed product and the liquid to yield a slurry;
- d) subjecting the slurry to a multi-stage slurry extraction and slurry separation step wherein in each stage a stage feed slurry is mixed with a stage feed liquid, the stage feed liquid comprising seed-oil and solvent, to yield a stage secondary slurry, and the stage secondary slurry is processed in a hydrocyclone to yield a stage outlet liquid comprising seed-oil and solvent and a stage outlet slurry comprising ground seed, and at least a portion the stage outlet slurry of at least one stage is forwarded to a downstream stage and at least a portion of the stage outlet liquid of at least one stage is recycled to an upstream stage;
- e) removing at least a portion of the stage outlet liquid from at least one of the stages to provide a liquid product, the liquid product comprising seed-oil and solvent, and subjecting the liquid product to an oil separation step to at least partially separate the seed-oil from the solvent to obtain a seed-oil product;
- f) mixing the stage outlet slurry from a final one of the stages with fresh solvent to yield a final slurry, wherein the fresh solvent is obtained from the oil separation step, and processing the final slurry to yield a processed seed product.
4 more elements
A process for extracting seed-oil from an oil-containing seed product, comprising:
- a) providing the seed product to a grinder;
- b) providing a first liquid comprising a solvent to the grinder, and wherein the solvent is selected from the group consisting of;
- hexane, methyl alcohol, ethyl alcohol, propyl alcohol, iso-propyl alcohol, petroleum ether, other solvents in the hexane series, and mixtures of the foregoing;
- c) grinding the seed product and the liquid to yield a slurry;
- d) subjecting the slurry to a multi-stage slurry extraction and slurry separation step wherein in each stage a stage feed slurry is mixed with a stage feed liquid, the stage feed liquid comprising seed-oil and solvent, to yield a stage secondary slurry, and the stage secondary slurry is processed in a hydrocyclone to yield a stage outlet liquid comprising seed-oil and solvent and a stage outlet slurry comprising ground seed, and at least a portion the stage outlet slurry of at least one stage is forwarded to a downstream stage and at least a portion of the stage outlet liquid of at least one stage is recycled to an upstream stage;
- e) removing at least a portion of the stage outlet liquid from a first one of the stages to provide a liquid product, the liquid product comprising seed-oil and solvent, and subjecting the liquid product to an oil separation step to at least partially separate the seed-oil from the solvent to obtain a seed-oil product;
- f) processing a stage outlet slurry from a final one of the stages to yield a processed seed product by mixing the stage outlet slurry with fresh solvent to yield a final slurry, decanting the final slurry to yield a wet seed product, and drying the wet seed product to yield the processed seed product, wherein the fresh solvent is obtained from the oil separation step.
4 more elements
Dependencies are inferred from the claim text.