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US4017413A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for the production of solutions or suspensions of cyanuric chloride in aqueous organic solvents

Assignee: Evonik Operations GmbH
•
Filing: 1975-11-18
•
Granted: 1977-04-12
•
Expires: 1995-11-18
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Abstract

Abstract There is provided a process for the production of a solution or suspension of cyanuric chloride in a water containing organic solvent wherein the liquid cyanuric chloride and the organic-aqueous solvent are mixed together while being agitated, the liquid cyanuric chloride at a temperature between its melting point and 200° C. is led into the flowing organic-aqueous solvent with a velocity of Vcy (in kg per hour) wherein ##EQU1## where P is the desired concentration of cyanuric chloride in the solution or suspension to be produced in weight %, P LM is the concentration of cyanuric chloride in the solvent used which also includes O, V lm is the velocity of the solvent added in kg/h, And P LM , V LM and T LM , the temperature of the added solvent, are so selected that the expression ##EQU2## does not exceed the boiling temperature in ° C. of the solvent used and wherein C p (LM) and C p (Cy) signify the specific heat capacities in cal. x g - 1 × (°degree C) - 1 of the solvent and cyanuric chloride respectively, whereupon in a given case within at most 3 minutes after bringing the cyanuric chloride and solvent into contact the flowing mixture is cooled to the desired storage temperature.

Inventors

  • 👤 Friedrich Bittner
  • 👤 Heinz Haschke
  • 👤 Helmut Suchsland
  • 👤 Gerd Schreyer
  • 👤 Werner Schwarze

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 19:56
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/28

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 164 words
A process for the production of a solution or suspension of cyanuric chloride in a water containing organic solvent comprising mixing liquid cyanuric chloride and the organic-aqueous solvent while they are agitated, said process including leading the liquid 200°chloride at a temperature between its melting point and 200° C. into the flowing organic-aqueous solvent, the cyanuric chloride having a velocity Vcy in kg/hr where ##EQU6##where P is the desired concentration of cyanuric chloride in said solution or suspension, P lm is the concentration of cyanuric chloride in the solvent, V LM V lm is the velocity of the added solvent in kg/h, and P lm , v lm , the temperature of the added solvent are so selected that the equation ##EQU7## does not exceed the boiling point in ° C. of the solvent and wherein C P (LM) and C P (Cy) indicate the specific heat capacities in cal. ×g - × degree C - 1 of the solvent and cyanuric chloride respectively.
Claim 2
Dependent Claim 164 words
A process for the production of a solution or suspension of cyanuric chloride in a water containing organic solvent comprising mixing liquid cyanuric chloride and the organic-aqueous solvent while they are agitated, said process including leading the liquid 200°chloride at a temperature between its melting point and 200° C. into the flowing organic-aqueous solvent, the cyanuric chloride having a velocity Vcy in kg/hr where ##EQU6##where P is the desired concentration of cyanuric chloride in said solution or suspension, P lm is the concentration of cyanuric chloride in the solvent, V LM V lm is the velocity of the added solvent in kg/h, and P lm , v lm , the temperature of the added solvent are so selected that the equation ##EQU7## does not exceed the boiling point in ° C. of the solvent and wherein C P (LM) and C P (Cy) indicate the specific heat capacities in cal. ×g - × degree C - 1 of the solvent and cyanuric chloride respectively.
Claim 3
Dependent Claim 24 words
The process of claim 1 including the further step of cooling the flowing mixture to the desired storage or use temperature within three minutes.
Claim 4
Dependent Claim 10 words
The process of claim 2 wherein P LM is 0.
Claim 5
Dependent Claim 12 words
The process of claim 2 wherein P LM is greater than 0
Claim 6
Dependent Claim 12 words
The process of claim 1 wherein T X is 40 to 50.
Claim 7
Dependent Claim 10 words
The process of claim 1 wherein T X is 50.
Claim 8
Dependent Claim 10 words
The process of claim 1 wherein T X is 40.
Claim 9
Dependent Claim 15 words
The process of claim 1 wherein the water containing solvent consists essentially of aqueous acetone.
Claim 10
Dependent Claim 16 words
The process of claim 1 wherein the solvent boils at a temperature not over 120° C.
Claim 11
Dependent Claim 18 words
The process of claim 1 wherein the amount of water is less than 50% of the total solvent.
Claim 12
Dependent Claim 18 words
The process of claim 10 wherein the amount of water is less than 10% of the total solvent.
Claim 13
Dependent Claim 18 words
The process of claim 11 wherein the amount of water is less than 5% of the total solvent.
Claim 14
Dependent Claim 21 words
The process of claim 12 wherein the solvent has a boiling point not over 120° C. and T X is 40-50.
Claim 15
Dependent Claim 22 words
The process of claim 1 wherein the solvent is an aqueous mixture consisting essentially of 29.1% acetone, 70% toluene and 0.9% water.

References Cited (Backward Citations)

US3575880A Cited
US3539565A Cited
US3883515A Cited
US3741729A Cited
US3925377A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-04-11 1980-10-11 1981-04-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-04-11 1984-10-11 1985-04-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-04-11 1988-10-11 1989-04-12 $7700.00 Window Closed / Lapsed

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