Organic material removing device

Patent metadata

Field	Value
Publication number	US-10343306-B2
Application number	US-201615742352-A
Country	US
Kind code	B2
Filing date	Mar 8, 2016
Priority date	Mar 8, 2016
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

An organic material removing device includes: a container for storing a composite material containing an inorganic material and an organic material decomposable by a treatment liquid; a treatment tank including an accommodation portion for accommodating the container, a treatment liquid inflow portion for allowing the treatment liquid to flow in, and a treatment liquid outflow portion for allowing the treatment liquid to flow out; temperature control means for heating or cooling the treatment liquid; and a treatment liquid circulation means for allowing the treatment liquid to flow in from the treatment liquid inflow portion into the treatment tank and allowing the treatment liquid in the treatment tank to flow out from the treatment liquid outflow portion.

First claim

The invention claimed is:

1. An organic material removing device comprising:
a container for storing a composite material containing an inorganic material and an organic material decomposable by a treatment liquid, the container comprising a plurality of buckets, each of the plurality of buckets having a bottom portion and a side portion rising from the bottom portion in a height direction of the bucket, the plurality of buckets being integrated in series in the height direction of the buckets;
a treatment tank including an accommodation portion for accommodating the container, a treatment liquid inflow portion for allowing the treatment liquid to flow in, and a treatment liquid outflow portion for allowing the treatment liquid to flow out;
a temperature controller configured to heat or cool the treatment liquid; and
a treatment liquid circulator configured to allow the treatment liquid to flow in from the treatment liquid inflow portion into the treatment tank and to allow the treatment liquid in the treatment tank to flow out from the treatment liquid outflow portion.

2. The organic material removing device according to claim 1 , wherein the treatment liquid inflow portion is provided on a lower side in a vertical direction with respect to the accommodation portion of the treatment tank, and the treatment liquid outflow portion is provided on an upper side in the vertical direction with respect to the accommodation portion of the treatment tank.

3. The organic material removing device according to claim 1 , wherein the treatment tank is provided with a rectifier configured to rectify the treatment liquid between the accommodation portion and the treatment liquid inflow portion.

4. The organic material removing device according to claim 1 , wherein each of the plurality of buckets is provided with a weir member for arranging the composite material along a flow direction of the treatment liquid.

5. The organic material removing device according to claim 1 , further comprising the composite material stored in the container, wherein the organic material decomposable by the treatment liquid is a resin containing an ester bond.

6. The organic material removing device according to claim 1 , further comprising the composite material stored in the container, wherein the inorganic material is carbon, glass, ceramics, a metal, or a semiconductor.

7. The organic material removing device according to claim 1 , further comprising the composite material stored in the container, wherein the composite material further contains an organic material which is not decomposed by the treatment liquid.

8. The organic material removing device according to claim 7 , wherein the organic material which is not decomposed by the treatment liquid is a thermoplastic resin or an aramid fiber.

9. The organic material removing device according to claim 1 , further comprising the composite material stored in the container, wherein the composite material contains a fibrous inorganic material, a resin containing an ester bond as the organic material decomposable by the treatment liquid, and a thermoplastic resin containing no ester bond as an organic material which is not decomposed by the treatment liquid.

10. The organic material removing device according to claim 1 , wherein the treatment liquid circulator comprises a storage tank including the treatment liquid stored therein, the storage tank being operably connected to the treatment liquid inflow portion of the treatment tank and to the treatment liquid outflow portion of the treatment tank, wherein the treatment liquid contains an organic solvent and a decomposition catalyst.

11. The organic material removing device according to claim 10 , wherein the organic solvent contains an alcohol solvent, a ketone solvent, an ether solvent, or an amide solvent.

12. The organic material removing device according to claim 10 , wherein the decomposition catalyst contains a phosphate or a metal hydroxide.

13. The organic material removing device according to claim 1 , wherein a ratio (distance/length) of a distance from the treatment liquid inflow portion to the treatment liquid outflow portion in the treatment tank to a maximum length of a cross section when the treatment tank is observed from a flow direction of the treatment liquid is from 1 to 20.

Assignees

• Hitachi Chemical Co Ltd

Inventors

• Kasuga Keiichi
• Kawasumi Shinichi
• Kobayashi Kazuhito

Classifications

• Y02W30/705

  Cross-Sectional Technologies · mapped topic

• C08J11/18

  by treatment with organic material · CPC title

• B29B2017/0293

  Dissolving the materials in gases or liquids · CPC title

• C08J11/16

  by treatment with inorganic material (C08J11/14 takes precedence) · CPC title

• B09B3/0016

  Operations & Transport · mapped topic