# US 2013/0158303 A1 · Method for separating butanol

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2013/0158303 A1
- Document ID: US20130158303A1
- Status: Published application
- Kind: A1
- Application number: 13/814,490
- Filed: 2011-04-15
- Published: 2013-06-20
- Earliest claimed: 2010-08-06
- Assignees: Nanjing University of Technology
- Inventors: Hanjie Ying; Xiaoqing Lin; Yong Chen; Xiaochun Chen; Jianxin Bai; Jian Xiong; Wenbin Qian; Jingjing Xie; Jinglan Wu
- Web page: https://patentgrep.com/patent/US20130158303A1

## CPC

- C07C 29/76: by physical treatment
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

Disclosed is a method for separating butanol. The method uses hydrophobic macroporous polymer adsorbent to separate butanol in a mixed solution, and the process comprises the following steps: 1) using macroporous polymer adsorbent to adsorb butanol in a mixed solution; 2) desorbing butanol from macroporous polymer adsorbent. The method is simple; the separation time is short; the efficiency of butanol recovery is high; and the separating cost is low.

## Claims

### Claim at position 1

1-10. (canceled)

### Claim 11

A method for separating butanol, comprising the following steps:
1) adsorbing butanol in a mixed solution by a hydrophobic macroporous polymer adsorbent to reach saturation;
2) desorbing butanol from the macroporous polymer adsorbent through a method of thermal desorption.

### Claim 12 (depends on 11)

The method according to claim 11, wherein the adsorption temperature in the step 1) is 30˜37° C.

### Claim 13 (depends on 12)

The method according to claim 12, wherein the step 1) comprises the step of shaking the mixed solution at a rate of 20˜250 rpm during adsorption.

### Claim 14 (depends on 11)

The method according to claim 11, wherein the weight volume ratio (g/mL) of the hydrophobic macroporous polymer adsorbent to the mixed solution used in the step 1) is 1:50.

### Claim 15 (depends on 11)

The method according to claim 11, wherein the desorption temperature in the step 2) is above 120° C.

### Claim 16 (depends on 11)

The method according to claim 11, wherein the initial concentration of the butanol in the mixed solution is 5˜350 g/L.

### Claim 17 (depends on 16)

The method according to claim 16, wherein the mixed solution further comprises ethanol and acetone.

### Claim 18 (depends on 17)

The method according to claim 17, wherein acetone, butanol, and ethanol are from fermentation broth.

### Claim 19 (depends on 18)

The method according to claim 18, wherein the butanol is n-butanol.

### Claim 20 (depends on 11)

The method according to claim 11, wherein the method further comprising the step of regenerating the hydrophobic macroporous polymer adsorbent.

### Claim 21 (depends on 20)

The method according to claim 20, wherein the regeneration of the hydrophobic macroporous polymer adsorbent and desorption of the butanol are completed simultaneously.

### Claim 22 (depends on 11)

The method according to claim 11, wherein the hydrophobic macroporous polymer adsorbent is selected from the group consisting of styrene-diethyl benzene, polyacrylamide, amide group cyano group, phenolic hydroxyl, and combinations thereof.

### Claim 23 (depends on 11)

The method according to claim 11, wherein the inner surface area of the hydrophobic macroporous polymer adsorbent is 100˜2,000 m2/g.

### Claim 24 (depends on 23)

The method according to claim 23, wherein the particle size of the hydrophobic macroporous polymer adsorbent is 20˜60 mesh.

### Claim 25 (depends on 11)

The method according to claim 11, wherein the particle size of the hydrophobic macroporous polymer adsorbent is 20˜60 mesh.

### Claim 26 (depends on 11)

The method according to claim 11, wherein the pore diameter of the hydrophobic macroporous polymer adsorbent is 1˜180 nm.

### Claim 27 (depends on 26)

The method according to claim 26, wherein the pore volume of the hydrophobic macroporous polymer adsorbent is 0.4˜3 cm3/g.

### Claim 28 (depends on 11)

The method according to claim 11, wherein the pore volume of the hydrophobic macroporous polymer adsorbent is 0.4˜3 cm3/g.

### Claim 29 (depends on 11)

The method according to claim 11, wherein the wet apparent density of the hydrophobic macroporous polymer adsorbent is 590˜750 g/L.

### Claim 30 (depends on 29)

The method according to claim 29, wherein the water content of the hydrophobic macroporous polymer adsorbent is 40˜80%.

### Claim 31 (depends on 11)

The method according to claim 11, wherein the water content of the hydrophobic macroporous polymer adsorbent is 40˜80%.