# US 9,750,276 B2 · Method for processing wet olive pomace

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- Number: US 9,750,276 B2
- Document ID: US9750276B2
- Status: Granted
- Kind: B2
- Application number: 14/344,282
- Filed: 2012-09-11
- Published: 2015-09-24
- Granted: 2017-09-05
- Earliest claimed: 2011-09-12
- Assignees: GEA Mechanical Equipment GmbH
- Applicants: Steffen Hruschka; Tomas Ignacio Eguiguren Correa; Jose Alberto Corbella
- Inventors: Steffen Hruschka; Tomas Ignacio Eguiguren Correa; Jose Alberto Corbella
- Web page: https://patentgrep.com/patent/US9750276B2

## CPC

- A23B 2/725: in the form of liquids or solids
- A23L 19/07: {Fruit waste products, e.g. from citrus peel or seeds}
- B30B 9/12: using pressing worms or screws co-operating with a permeable casing
- C07B 63/00: Purification; Separation (separation of optically-active compounds C07B57/00); Stabilisation; Use of additives
- A23B: PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B)
- B30B: PRESSES IN GENERAL (producing ultra-high pressure or ultra-high pressure and high temperature to effect modifications of a substance, e.g. for making artificial diamonds B01J3/00 ){(compressing means for refuse receptacles B65F1/1405)}
- C07B: GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR (preparation of carboxylic acid esters by telomerisation C07C67/47; telomerisation C08F)

## Abstract

A method for processing wet olive pomace involves providing wet olive pomace, adding a calcium compound and/or a calcium solution to the wet olive pomace, and filtering the wet olive pomace in a first separating device to obtain a solid phase and a liquid phase.

## Claims

### Claim 1

A method for processing wet olive pomace, which comprises at least the following steps:
a) providing wet olive pomace;
b) adding a calcium compound and/or a calcium solution to the wet olive pomace; and
c) filtering the wet olive pomace in a first separating device to obtain a liquid-reduced solid phase and at least one liquid phase;
wherein step b) is carried out before step c) and wherein processing the wet olive pomace from its provision, according to step a), up to mechanical separation of the at least one liquid phase from the wet olive pomace by forming the liquid-reduced solid phase, according to step c), is carried out within a maximum of 1 hour.

### Claim 2 (depends on 1)

The method of claim 1, wherein the calcium compound is calcium oxide.

### Claim 3 (depends on 1)

The method of claim 1, wherein the calcium compound is calcium hydroxide.

### Claim 4 (depends on 1)

The method of claim 1, wherein the calcium compound or the calcium solution is a calcium salt.

### Claim 5 (depends on 4)

The method of claim 4, wherein wollastonite is added to the wet olive pomace as the calcium salt.

### Claim 6 (depends on 1)

The method of claim 1, wherein after providing the wet olive pomace, according to step a), and before adding the calcium compound and/or the calcium solution, according to step b), a mechanical separation of stones from at least a proportion of a total amount of wet olive pomace is performed following extraction of olive oil.

### Claim 7 (depends on 1)

The method of claim 1, wherein after providing the wet olive pomace, according to step a), and before adding the calcium compound and/or calcium solution, according to step b), a mechanical separation of an oil-water emulsion is performed.

### Claim 8 (depends on 1)

The method of claim 1, wherein
an amount of between 2-3%, in relation to a total weight of wet olive pomace, of lime is added to the wet olive pomace, or
an amount of slaked lime and/or limewater is added to the wet olive pomace, which amount corresponds to a concentration of calcium in the wet olive pomace when adding an amount of between 2-3% in relation to the total weight of wet olive pomace of lime to the wet olive pomace.

### Claim 9 (depends on 1)

The method of claim 1, wherein the filtering according to step c) uses a press as the first separating device.

### Claim 10 (depends on 9)

The method of claim 9, wherein the press is a screw press.

### Claim 11 (depends on 1)

The method of claim 1, wherein a decanter is the first separating device.

### Claim 12 (depends on 1)

The method of claim 1, wherein a filter device is the first separating device.

### Claim 13 (depends on 1)

The method of claim 1, wherein the adding of the calcium compound is carried out through a powder-in-pulp dosing unit or by using a powder dosing machine.

### Claim 14 (depends on 1)

The method of claim 1, wherein the adding of the calcium solution is carried out by a liquid-liquid dosing unit.

### Claim 15 (depends on 1)

The method of claim 1, wherein a process control takes place by determining a temperature of the wet olive pomace, before and/or after adding the calcium compound, according to step b), and/or before and/or after the mechanical separation, according to step c).

### Claim 16 (depends on 1)

The method of claim 1, wherein the wet olive pomace is obtained from olives having a degree of ripeness of 4-5, starting from a scale of 1-7, wherein the degree of ripeness 7 indicates the over-ripeness of an olive.

### Claim 17 (depends on 1)

The method of claim 1, wherein before step c), pectin is added to the wet olive pomace.

### Claim 18 (depends on 1)

The method of claim 1, further comprising the step:
d) processing the at least one liquid phase from step c) in a second separating device by forming a solid phase, an aqueous phase and where applicable an oil phase, wherein the second separating device is a decanter.

### Claim 19 (depends on 18)

The method of claim 18, wherein polyphenols are obtained from the aqueous phase.

### Claim 20 (depends on 19)

The method of claim 19, wherein the polyphenols are obtained from the aqueous phase by concentrating the aqueous phase and/or by adsorption.
