| [打印本页][打印选项] |
| CAS号[55281-26-0]生产工艺 - C.I.分散橙61(C.I. 111355) |
【CAS名】Propanenitrile,
3-[[4-(2,6-dibromo-4-nitrophenyl)azo]phenyl]ethylamino]-
【结构式】略
【分子式/分子量】C17H15Br2N5O2 = 481.14
【用途】涤纶及其混纺织物的染色
资料I：这是以前本人收集的英文资料，抄录文仅供参考，其中CAS号为本人所加，不再翻译。
A. Preparation of
nitrosyl sulphuric acid
【CAS号】[7782-78-7]
(抄注：[7782-78-7]已在2019年6月17日上传)
In
a clean and dry glass lined vessel. Charge 1820kg sulphuric acid. Start ice
water circulation in jacket. Charge 159kg Sodium Nitrite slowly through sieve
below 40°C. Stir 2hrs at 40°C. Cool to 25°C by jacket cooling.
B. Preparation of
diazo
【重氮体的CAS号】暂未找到
To
the cooled (25-30°C) nitrosyl sulphuric acid, charge 634kg
2,6-dibromo-4-nitroaniline [827-94-1], slowly through sieve at 25-30°C, stir 2hrs
at 25-30°C. Test sample for completion of diazotization of diazotization.
Volume 1330 l. Temperature 25-30°C.
C. Preparation of
couplet
【CAS号】[148-87-8]
Check
M.S.R.L, Charge 3000L water, charge 2000kg Ice, charge 400kg sulphuric acid.
Keeping temperature 15-20°C. Charge 42kg Reax 85 A. Charge 21kg sulfamic acid.
When diazo is ready, charge sufficient ice to keep temperature below 5°C.
Charge 390kg N-cyanoethyl-N-ethylanilino [148-87-8], stir well. Charge 5kgsurfynol
104 E [126-86-3].
D. Coupling
Charge
D-14 diazo to coupler solution slowly and continuously below 5°C. Stir 0.5hr
below 5°C. Check coupling with same “Diazo” and “Coupler” solution. Couplet +. Diazo -. Runout on spot is clear.
E. Crystal stabilization
To
the coupled mass, charge 21kg Matamol D. Stir well. In a vessel prepare 20% w/v
caustic soda solution with caustic soda lye (50%) and Ice. Charge this solution
to the coupled mass below 20°C. Till pH adjusted to 4.0. Heat to 70°C. Stir at
70°C for 2hrs and observe crystal shape.
F. Filtration
Filter
batch. Give warm water (50°C). Wash to cake till neutral and press cake coupler
free.
资料II：何岩彬主编《染料品种大全》，沈阳出版社出版，2018年，P.813，C.I.分散橙61 (C.I. 111355)
资料内容不再抄录
陈忠源
2022年5月8日，星期日 文章作者：陈忠源 |