IP Library Granted Patent US 11,034,587
Granted Patent B2
US 11,034,587 · App. 16/762,826 · Granted Jun 15, 2021

Method of producing zeolite film

Inventor: Kazuya Maekawa (Tokyo, JP)
Assignee: MITSUI E&S MACHINERY CO., LTD.
C01B39/023B01J19/0013B01J19/305B01J2219/00051B01J2219/00162
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,034,587
App. No.
16/762,826
Granted
Jun 15, 2021
Kind
B2
Abstract

Provided is a method of producing a zeolite film continuously and efficiently. Zeolite is formed on a surface of a support using a method including: a first step of attaching zeolite fine crystals to a surface of a support; a second step of preparing synthetic gel for growing the fine crystals; a third step of putting the support and the synthetic gel into a reactor and performing hydrothermal synthesis; and a fourth step of cleaning the support subjected to the hydrothermal synthesis, in which in the third step, multiple containers arranged to be movable in a constant-temperature apparatus are each used as the reactor, the temperature and pressure for the hydrothermal synthesis is adjusted by the temperature and pressure in the constant-temperature apparatus, and the reaction time of the hydrothermal synthesis is adjusted by setting the time from when the reactor enters the constant-temperature apparatus to when the reactor exits the constant-temperature apparatus.

Claims (9)

1. A method of producing a zeolite film by forming zeolite on a surface of a support, characterized in that the method comprises the following first to fourth steps:

a first step of attaching zeolite fine crystals to a surface of a support;

a second step of preparing synthetic gel for growing the fine crystals;

a third step of putting the support and the synthetic gel into reactors and performing hydrothermal synthesis; and

a fourth step of cleaning the support subjected to the hydrothermal synthesis, wherein

in the third step, multiple containers arranged to be movable in a constant-temperature apparatus are each used as the reactors, the temperature and pressure for the hydrothermal synthesis is adjusted by the temperature and pressure in the constant-temperature apparatus, and the reaction time of the hydrothermal synthesis is adjusted by setting the time from when the reactors enter the constant-temperature apparatus to when the reactors exit the constant-temperature apparatus.

2. The method of producing a zeolite film according to claim 1 , characterized in that in the second step, at least two pieces of preparation equipment are used to prepare the synthetic gel continuously.

3. The method of producing a zeolite film according to claim 1 , characterized in that in the fourth step, the support having a zeolite film is sequentially taken out of the reactors moved out of the constant-temperature apparatus, and cleaned continuously.

4. The method of producing a zeolite film according to claim 2 , characterized in that, in the fourth step, the support having a zeolite film is sequentially taken out of the reactors moved out of the constant-temperature apparatus, and cleaned continuously.

Assignments (3)
MERGER Recorded Feb 28, 2024
From: MITSUI E&S MACHINERY CO., LTD.
To: MITSUI E&S HOLDINGS CO., LTD.
Reel/Frame 066698/0328 →
CHANGE OF NAME Recorded Feb 28, 2024
From: MITSUI E&S HOLDINGS CO., LTD.
To: MITSUI E&S CO., LTD.
Reel/Frame 066699/0287 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 8, 2020
From: MAEKAWA, KAZUYA
To: MITSUI E&S MACHINERY CO., LTD.
Reel/Frame 052618/0316 →
Continuity (1)
Related Publication 20200392007A1 · Dec 17, 2020