• 검색 결과가 없습니다.

초미립 탄화텅스텐제조를 위한 WO<sub>3</sub>의 CO 환원-탄화 반응에서의 Zeolite NaX의 영향

N/A
N/A
Protected

Academic year: 2021

Share "초미립 탄화텅스텐제조를 위한 WO<sub>3</sub>의 CO 환원-탄화 반응에서의 Zeolite NaX의 영향"

Copied!
5
0
0

로드 중.... (전체 텍스트 보기)

전체 글

(1)
(2)

Temperature(

o

C) 30 0 35 0 40 0 45 0 50 0 55 0 60 0 65 0 70 0

CO consumption (%)

0 2 4 6 8 10 12 14 16 18 20

So le W O

3

Z e oli te Na X Si O

2

(3)

2-Theta

20 25 30 35 40 45 50 55 60 65 70

intensity

0 1000 2000 3000 4000 5000 6000

=

= Zeolite Nax

= = SiO

2

=

= Non Diluter

Ž

Ž Ž

Ž Ž

™ ™ ™

™ WC

Ž WO

2

A m ount of CO c on s um pt ion (m l)

40 60 80 100 120 140

650

o

C

675

o

C

700

o

C

725

o

C

750

o

C

Temp.

o

C

400 600 800 1000 1200 1400

M o le F ra c ti o n

0.0 0.2 0.4 0.6 0.8 1.0

W WC WO3

Temp. o C

400 600 800 1000 1200 1400

M o le Fract ion

0.0 0.2 0.4 0.6 0.8 1.0

CO

CO

2

(4)

2-T h et a 20 30 40 50 60 70 80

Intensity

0 20 0 40 0 60 0 80 0 10 00 12 00 14 00 16 00

Tem pera tur e(

o

C) 300 350 400 450 500 550 600 650 700

CO consumption (%)

0 2 4 6 8 10 12 14 16 18 20

Z eol ite NaX Rege ner ati on Z eol ite NaX R1 Z eol ite NaX R2 T emp era utur e [ ] ] 200 250 300 350 400 450 500 550 600 650 700

Intencity / A.U

CO 2

(5)

참조

관련 문서

다만 NaHCO 3 분말의 입자크기를 줄 여 소화효과를 더욱 높이는 방법을 강구하였는데, Ni 등은 흡착제로 많이 사용하는 Zeolite 13X에 미세 NaHCO 3 를

However, the known triple tungstate spectrum is relatively narrow and the active search for new materials in this field is topical. Among the present

The synthesized powders showed nano-sized particles with specific surface areas of 6.01~21.5 m 2 /g and the particle size and shape changed according to the content of In 2 O 3.

For the first time, we have incorporated 2-methylimidazole in the electrospinning solution containing ammonium metatungstate hydrate and polyacrylonitrile (PAN) and used it as

본 연구에서는 나노입자 촉매의 기능을 최대화 시키기 위해 서, 중공구조를 가지는 아포페리틴 단백질 템플릿을 이용하여, 5 nm 크기 이하의 크롬 (Cr) 및 코발트

A new type of C 60 that takes the form of needle-like crys- tals, C 60 nanowhiskers, was synthesized via liquid-liquid interfacial precipitation (LLIP), where

Pseudo first order rate kinetics for photocatalytic degradation of methylene blue using WO 3 thin films annealed at

In this study, the adsorption and photocatalytic effects of WO 3 nanomaterials prepared by hydrothermal synthesis are investigated, with citric acid added in the hydrothermal process