Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for making a chlorohydrin starting with a polyhydroxylated aliphatic hydrocarbon

A technology for polyhydroxy aliphatic hydrocarbons and chlorohydrins, which can be used in the preparation of hydroxyl compounds, separation/purification of hydroxyl compounds, chemical instruments and methods, etc., and can solve problems such as hindering economic benefits.

Inactive Publication Date: 2012-09-26
SOLVAY SA
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the additional costs associated with pre-discharge treatment can hinder the economics of this approach

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for making a chlorohydrin starting with a polyhydroxylated aliphatic hydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0094] In the production process according to the present invention, the organic acid may be a product produced by the process for producing polyhydroxy aliphatic hydrocarbons, or a product not produced by the process. In the latter case, the products in question may be organic acids used to catalyze the reaction of polyhydroxyaliphatic hydrocarbons with chlorinating agents, and / or acids produced in processes for the preparation of chlorohydrins. For example, acid formation starting from aldehydes present in polyhydric aliphatic hydrocarbons or during the preparation of chlorohydrins needs to be considered. The organic acid may also be a mixture of organic acids derived from the polyhydroxy aliphatic hydrocarbon production process and organic acids not derived from the polyhydroxy aliphatic hydrocarbon production process.

[0095] In the process according to the invention, the esters of polyhydroxyaliphatic hydrocarbons may result from the reaction between polyhydroxyaliphatic...

Embodiment

[0131] figure 1 A diagram of a specific apparatus that can be used to carry out the separation process according to the invention is shown.

[0132] Polyhydroxy aliphatic hydrocarbons, esters of polyhydroxy aliphatic hydrocarbons or mixtures thereof are supplied to reactor (4) via line (1) and catalyst via line (2) in continuous or batch mode; chlorinating agent is supplied via (3) in continuous mode mode or batch mode supply; the vapor generated in the reactor (4) is supplied to the distillation column (6) via the line (5); the stream separated from the distillation column (6) via the line (7) is introduced into the condenser (8 ); the stream obtained from this condenser is introduced via line (9) into a phase separator (10) in which the aqueous and organic phases are separated. A part of the separated aqueous phase is optionally recycled to the top of the distillation column via line (11 ) to maintain reflux. Fresh water can be introduced into line (11) via line (12). The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for making a chlorohydrin. At least one portion of mixture containing at least the chlorohydrin and other compounds is subjected to one or more treatments comprising oxidation at a temperature greater than or equal to 800[deg.] C. and a separating operation selected from phase separation, filtration, centrifugation, extraction, washing, evaporation, stripping, distillation, and adsorption operations or the combinations of at least two of these operations. A polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof whose alkali metal and / or alkaline earth metal content is less than or equal to 5 g / kg, a chlorinating agent and an organic acid are reacted so as to give the mixture.

Description

[0001] This application is a Chinese patent application for the international application PCT / EP2006 / 062444 entering the Chinese national phase (the application number is 200680000523.X, and its filing date is May 19, 2006, and the title of the invention is "prepared by chlorination of polyhydroxy aliphatic hydrocarbons Chlorohydrin method") divisional application. [0002] priority claim [0003] This patent application claims priority to patent application FR 05.05120 and patent application EP 05104321.4, filed May 20, 2005, and provisional US patent applications 60 / 734659, 60 / 734627, 60 / 734657, filed November 8, 2005, Priority of 60 / 734658, 60 / 734635, 60 / 734634, 60 / 734637 and 60 / 734636, all of which are hereby incorporated by reference. technical field [0004] The present invention relates to a process for the preparation of chlorohydrins (chlorohydrins), more particularly to a process for the preparation of chlorohydrins by chlorination of polyhydroxy aliphatic hydrocarb...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/76C07C29/88C07C31/36C07C31/42C08G59/02
CPCC07D303/08C07C29/62C07C29/82B01D3/143C07D301/06C07D301/26C07D301/02C07C31/36C07C31/42
Inventor 菲利普·克拉夫特帕特里克·吉尔博多米尼克·巴尔塔萨特瓦伦丁·斯梅茨
Owner SOLVAY SA