# US 2017/0280736 A1 · Method for the prophylactic treatment of a food product silo

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- Number: US 2017/0280736 A1
- Document ID: US20170280736A1
- Status: Published application
- Kind: A1
- Application number: 15/508,691
- Filed: 2015-09-04
- Published: 2017-10-05
- Earliest claimed: 2014-09-04
- Assignees: Solvay SA
- Applicants: Solvay SA
- Inventors: Olivier PATAT; Jean-Philippe PASCAL
- Web page: https://patentgrep.com/patent/US20170280736A1

## CPC

- A23B 9/30: Inorganic compounds
- A01N 25/04: Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16)
- A01N 55/02: containing metal atoms
- A01N 59/00: Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N 59/02: Sulfur; Selenium; Tellurium; Compounds thereof
- A01N 59/04: Carbon disulfide; Carbon monoxide; Carbon dioxide
- A01N 59/06: Aluminium; Calcium; Magnesium; Compounds thereof
- Y02A 50/30: Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
- A23B: PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A method for the prophylactic treatment of the development of parasites in a food product storage silo, the food product storage generating the deposit of food product scraps and/or dust on the walls of the silo, said prophylactic treatment method comprising the application, to at least one part of the walls, of a layer comprising at least 10 g of mineral per m2 of wall, the mineral being chosen from: an alkali metal bicarbonate, an alkaline-earth metal carbonate, an alkali metal sulphate, an alkaline-earth metal sulphate, an alkaline-earth metal oxide, and mixtures thereof; the mineral being in the form of particles having an average diameter of at most 200 μm; and said method being characterized in that the application of the layer is carried out after emptying of the silo, on food product scraps and/or dust deposited on the walls of the silo.

## Claims

### Claim 1

A method for producing a barrier between parasites and food product scraps and/or dust which are attached to a wall of a food product storage silo after emptying of the silo, the method comprising:
using a layer comprising a mineral on the wall of the silo, wherein the mineral is selected from the group consisting of: an alkali metal bicarbonate, an alkali metal carbonate, an alkaline-earth metal carbonate, an alkali metal sulphate, an alkaline-earth metal sulphate, an alkaline-earth metal oxide, and mixtures thereof,
the mineral being in the form of particles having an average diameter of at most 200 μm, and
the layer comprising at least 10 g of the mineral per m2 of wall.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the mineral is selected from the group consisting of: sodium bicarbonate, potassium bicarbonate, trona, sodium carbonate, potassium carbonate, calcium carbonate, magnesium carbonate, dolomite, sodium sulphate, potassium sulphate, calcium sulphate, magnesium sulphate, magnesium oxide, and mixtures thereof.

### Claim 3 (depends on 2)

The method according to claim 2, wherein the mineral is sodium bicarbonate or trona.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the layer additionally comprises a co-formulant of the mineral, the co-formulant being selected from the group consisting of: a silica, a diatomaceous earth, an alkaline-earth metal silicate, a clay, a montmorillonite, a zeolite, and mixtures thereof.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the layer is obtained by application of the mineral to the wall by sprinkling, brushing or spraying the mineral in the form of an aqueous suspension of the mineral, then drying.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the layer comprising the mineral is an adhesive layer, and wherein the layer applied to a sheet of galvanized metal of 0.01 m2 placed horizontally thereby providing an upper face of the sheet, the layer being applied to the upper face thereby forming a coated face, retains, after the sheet of galvanized metal has been turned over and placed with the coated face facing the ground, at least 80% of the mineral after one hour.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the layer comprising the mineral is a pulverulent layer, and wherein said layer applied to a horizontal sheet of galvanized metal of 0.01 m2, then subjected, at a distance of 60 cm, for 10 minutes, to a jet of air of 2 bar having an initial air speed of 14 m/s, loses at least 20% of the mineral.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the layer comprises at most 200 g of mineral per square meter of wall.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the layer fills at least part of the crevices of the wall.

### Claim 10 (depends on 1)

The method according to claim 1, wherein the layer is applied from February to June in the northern hemisphere or from August to December in the southern hemisphere on the wall of the empty food product storage silo.

### Claim 11

(canceled)

### Claim 12

A method for a prophylactic treatment of development of parasites in a food product storage silo, the silo comprising walls, and the food product storage generating deposit of food product scraps and/or dust on the walls of the silo after emptying of the silo,
said prophylactic treatment method comprising application to at least part of the walls
of a mineral selected from the group consisting of an alkali metal bicarbonate, an alkali metal carbonate, an alkaline-earth metal carbonate, an alkali metal sulphate, an alkaline-earth metal sulphate, an alkaline-earth metal oxide, and mixtures thereof,
the mineral being in the form of particles having an average diameter of at most 200 μm,
the mineral being applied as a layer comprising at least 10 g of the mineral per m2 of wall, and
wherein the application of the layer is carried out after emptying of the silo, on food product scraps and/or dust deposited on the walls of the silo.

### Claim 13

A method for preventing an increase in population of parasites in a food product storage silo without significantly increasing, the silo comprising walls, and the food product storage generating deposit of food product scraps and/or dust on the walls of the silo after emptying of the silo,
said method comprising application to at least part of the walls
of a mineral selected from the group consisting of an alkali metal bicarbonate, an alkali metal carbonate, an alkaline-earth metal carbonate, an alkali metal sulphate, an alkaline-earth metal sulphate, an alkaline-earth metal oxide, and mixtures thereof,
the mineral being in the form of particles having an average diameter of at most 200 μm,
the mineral being applied as a layer comprising at least 10 g of the mineral per m2 of wall, and
wherein the application of the layer is carried out after emptying of the silo, on food product scraps and/or dust deposited on the walls of the silo.

### Claim 14 (depends on 1)

The method according to claim 1, wherein the layer is non-parasiticidal.

### Claim 15 (depends on 1)

The method according to claim 1, without being parasite-repellent.

### Claim 16 (depends on 1)

The method according to claim 1, wherein the layer is obtained by application of the mineral and optionally of a co-formulant of the mineral, by powdering.

### Claim 17 (depends on 1)

The method according to claim 1, wherein the layer additionally comprises a co-formulant of the mineral, the co-formulant containing silica.

### Claim 18 (depends on 12)

The method according to claim 12, wherein the mineral is sodium bicarbonate or trona.

### Claim 19 (depends on 12)

The method according to claim 12, wherein the layer additionally comprises a co-formulant of the mineral, the co-formulant being selected from the group consisting of: a silica, a diatomaceous earth, an alkaline-earth metal silicate, a clay, a montmorillonite, a zeolite, and mixtures thereof.