CN101628883A - 一种二次加热-降膜逆流换热的尿素中压分解工艺 - Google Patents
一种二次加热-降膜逆流换热的尿素中压分解工艺 Download PDFInfo
- Publication number
- CN101628883A CN101628883A CN200910305430A CN200910305430A CN101628883A CN 101628883 A CN101628883 A CN 101628883A CN 200910305430 A CN200910305430 A CN 200910305430A CN 200910305430 A CN200910305430 A CN 200910305430A CN 101628883 A CN101628883 A CN 101628883A
- Authority
- CN
- China
- Prior art keywords
- heating
- reboiler
- urea
- falling film
- ammonium carbamate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009103054303A CN101628883B (zh) | 2009-08-10 | 2009-08-10 | 一种二次加热-降膜逆流换热的尿素中压分解工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009103054303A CN101628883B (zh) | 2009-08-10 | 2009-08-10 | 一种二次加热-降膜逆流换热的尿素中压分解工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101628883A true CN101628883A (zh) | 2010-01-20 |
CN101628883B CN101628883B (zh) | 2012-05-30 |
Family
ID=41574182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2009103054303A Active CN101628883B (zh) | 2009-08-10 | 2009-08-10 | 一种二次加热-降膜逆流换热的尿素中压分解工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101628883B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101823985A (zh) * | 2010-02-05 | 2010-09-08 | 河南心连心化肥有限公司 | 尿素系统中压分解分离提纯装置 |
CN102816091A (zh) * | 2011-06-10 | 2012-12-12 | 安徽省科捷再生能源利用有限公司 | 水溶液全循环尿素节能生产工艺 |
CN103804237A (zh) * | 2014-01-09 | 2014-05-21 | 中盐安徽红四方股份有限公司 | 一种降低中压放空气体中氨含量及其燃爆性的方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1039413C (zh) * | 1993-09-16 | 1998-08-05 | 中国化学工程总公司 | 新汽提循环法尿素生产方法及其装置 |
-
2009
- 2009-08-10 CN CN2009103054303A patent/CN101628883B/zh active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101823985A (zh) * | 2010-02-05 | 2010-09-08 | 河南心连心化肥有限公司 | 尿素系统中压分解分离提纯装置 |
CN101823985B (zh) * | 2010-02-05 | 2013-01-02 | 河南心连心化肥有限公司 | 尿素系统中压分解分离提纯装置 |
CN102816091A (zh) * | 2011-06-10 | 2012-12-12 | 安徽省科捷再生能源利用有限公司 | 水溶液全循环尿素节能生产工艺 |
CN103804237A (zh) * | 2014-01-09 | 2014-05-21 | 中盐安徽红四方股份有限公司 | 一种降低中压放空气体中氨含量及其燃爆性的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101628883B (zh) | 2012-05-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2933474C (en) | Integrated production of urea and melamine | |
CA2769236C (en) | Process and apparatus for recovering ammonia from a gas stream | |
CN103936033B (zh) | 从Andrussow工艺的氨解吸塔中回收热量的方法 | |
JP6762306B2 (ja) | 尿素製造方法及び尿素製造装置 | |
JPS6234033B2 (zh) | ||
JPWO2017043391A1 (ja) | 尿素製造方法及び尿素製造装置 | |
NZ211460A (en) | The preparation of urea | |
CN109070043B (zh) | 在控制缩二脲的情况下的尿素生产 | |
CN101166714B (zh) | 尿素合成装置 | |
CN105026365B (zh) | 尿素合成方法和设备 | |
JP2008508226A (ja) | 縦型合成リアクタにおいて、純粋なメラミンを生成するための高圧法 | |
EP3233792B1 (en) | Process for urea production | |
CN101628883B (zh) | 一种二次加热-降膜逆流换热的尿素中压分解工艺 | |
EP2380870B1 (en) | Method to recover organic tertiary amines from waste sulfuric acid employing a plug flow reactor | |
CN101624355A (zh) | 一种低水碳比-三段吸收-蒸发式氨冷的尿素生产中压回收工艺 | |
EP2343274A1 (en) | A urea stripping process for the production of urea | |
KR101320276B1 (ko) | 수성 암모늄 카바메이트 스트림의 농축 방법 | |
US5597454A (en) | Process for producing urea | |
CN111995592B (zh) | 一种尿素与三聚氰胺联产的方法和装置 | |
CN105008327B (zh) | 尿素设备改造方法 | |
CN110127724A (zh) | 使用第二废热锅炉的氰化氢制造方法 | |
AU2004208632B2 (en) | Process for separating NH3 and optionally CO2 and H2O from a mixture containing NH3, CO2 and H2O | |
CN213866026U (zh) | 一种用于氨气提法尿素生产工艺的节能提产装置 | |
RU2117002C1 (ru) | Способ получения карбамида | |
US6399825B1 (en) | Process for manufacture of dimethyl acetamide |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SICHUAN GOLDEN ELEPHANT CHEMICAL CO., LTD. |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20101222 Address after: 620031 Meishan City, Sichuan Province town of wulidun Street ear like Dongpo District No. 43 Applicant after: Sichuan Jin Sheng Sai Rui Chemical Industry Co.,Ltd. Address before: 620031 Meishan City, Sichuan Province town of wulidun Street ear like Dongpo District No. 43 Applicant before: Sichuan Jin Sheng Sai Rui Chemical Industry Co.,Ltd. Co-applicant before: Sichuan Golden Elephant Chemical Industry Group |
|
C53 | Correction of patent for invention or patent application | ||
CB02 | Change of applicant information |
Address after: 610031 Meishan province Sichuan City Jinxiang Chemical Industrial Park Dongpo District Applicant after: Sichuan Golden-Elephant Sincerity Chemical Co., Ltd. Address before: 620031 Meishan City, Sichuan Province town of wulidun Street ear like Dongpo District No. 43 Applicant before: Sichuan Jin Sheng Sai Rui Chemical Industry Co.,Ltd. |
|
COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SICHUAN JIN SHENG SAI RUI CHEMICAL INDUSTRY CO., LTD. TO: SICHUAN GOLDEN-ELEPHANT SINCERITY CHEMICAL CO., LTD. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant |