# US 10,767,105 B2 · Redispersion of schizophyllan

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- Number: US 10,767,105 B2
- Document ID: US10767105B2
- Status: Granted
- Kind: B2
- Application number: 15/765,038
- Filed: 2016-09-30
- Published: 2018-09-27
- Granted: 2020-09-08
- Earliest claimed: 2015-10-02
- Assignees: BASF SE
- Applicants: Wintershall Holding GmbH
- Inventors: Thomas Letzelter; Sascha Rollie; Andreas Bauder; Florian Lehr; Burkhard Ernst; Daniel Silbernagel; Tobias Käppler
- Web page: https://patentgrep.com/patent/US10767105B2

## CPC

- C09K 8/588: characterised by the use of specific polymers {(polymeric surfactants C09K8/584)}
- C09K 8/035: Organic additives
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

The present invention relates to a method for preparing a concentrated polysaccharide mass, in particular a method for preparing concentrated glucan or schizophyllan, in particular a method for redispersing glucan or schizophyllan for producing a ready-to-use mass.

## Claims

### Claim 1

A method for preparing a concentrated polysaccharide mass, wherein the method comprises:
(1) blending the concentrated polysaccharide mass having a polysaccharide concentration [c1] in the range from ≥50 g to ≤800 g of polysaccharide per liter of concentrated polysaccharide mass, to obtain a mash having a polysaccharide concentration [c2] in the range from ≥5 g to ≤50 g of polysaccharide per liter of mash, wherein the blending comprises adding a first dilution liquid, and during the blending a particle size of particles of the concentrated polysaccharide mass is decreased and mixing with the first dilution liquid proceeds;
(2) homogenizing the mash having a polysaccharide concentration [c2], in order to obtain a homogenized mash having a polysaccharide concentration [c3] in the range from ≥5 g to ≤50 g of polysaccharide per liter of homogenized mash, wherein, during the homogenization, homogenization of particles in the mash proceeds;
(3) diluting the homogenized mash having a polysaccharide concentration [c3], in order to obtain a diluted homogenized mash having a polysaccharide concentration [c4] in the range from ≥0.05 g to ≤2.0 g of polysaccharide per liter of diluted homogenized mash, wherein the dilution comprises addition of a third dilution liquid,
wherein the ratio of [c1] to [c4] is in the range from ≥1:30 to ≤1:20 000.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the ratio of [c1] to [c4] is in the range from ≥1:30 to ≤1:10 000.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the polysaccharide comprises at least one alpha-glucan, a beta-glucan or a xanthan.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the homogenization in step (2) comprises an addition of a second dilution liquid.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the homogenization in step (2) comprises at least one first stage and one second stage of a homogenization, of which the second stage has a higher homogenization than the first stage.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the dilution of the homogenized mash in step (3) comprises a further homogenization of the homogenized mash.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the homogenization in step (2) and the dilution in step (3) each proceed in a continuous-flow process in which a substantially continuous flow proceeds from a blending volume into a homogenization volume and from the homogenization volume into a dilution volume.

### Claim 8 (depends on 1)

A method for recovering fossil fuels from rock, wherein the method comprises:
method according to claim 1 and,
(4) introducing the diluted homogenized mash into a rock for recovering fossil fuels from the rock.