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Measuring method for monitoring content of siloxane in hydrochloride during organosilicone production process

A technology for the production process of siloxane hydrochloride, which is applied in the field of determination of siloxane hydrochloride content, and achieves the effect of simple operation and strong practicability

Inactive Publication Date: 2012-07-18
LUZHOU NORTH CHEM IND
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Problems solved by technology

And do not see the bibliographical information about the suitable method that can accurately analyze the siloxane content in the hydrochloric acid in the production process at present

Method used

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  • Measuring method for monitoring content of siloxane in hydrochloride during organosilicone production process
  • Measuring method for monitoring content of siloxane in hydrochloride during organosilicone production process
  • Measuring method for monitoring content of siloxane in hydrochloride during organosilicone production process

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Embodiment Construction

[0010] In the following examples, take a clean brown small mouth reagent bottle, weigh it, and record it as m 1 , Accurate to 0.01g; take the sample into the reagent bottle, the sampling amount is 100-1000g, record the total weight of the sample and the bottle m 2 , Accurate to 0.01g; immediately after the sample is retrieved, add 10-200ml of extractant in the fume hood, shake vigorously for 5-60min to fully wash out the oil in the acid, transfer all the liquid in the reagent bottle to the separatory funnel, Static stratification for 5-60min. Weigh the beaker with constant weight and mark it as m 3 , Accurate to 0.0001g; take out the lower oil phase of the separatory funnel into a beaker, put the oil phase in a water bath to evaporate, and transfer the beaker to the oven, and take it out at a constant temperature of 30℃-180℃ for at least 1h. Cool to room temperature in a desiccator, constant weight, mark as m 4 , Accurate to 0.0001g,

[0011] Then the siloxane content X in hydroc...

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Abstract

The invention provides a measuring method for monitoring the content of siloxane in hydrochloride acid during the organosilicone production process, and aims to provide a method which is simple to operate, is convenient and fast, and can accurately acquire the data about the content of siloxane in hydrochloride acid. The measuring method is realized through the technical scheme as follows: taking a clean reagent bottle, sampling from a production line a liquid phase sample with the sample amount between 100g and 1000g, and recording the total weight m2 of the sample and the reagent bottle; after taking back the sample, adding siloxane-soluble extraction agent 10 ml to 200 ml into a ventilation cabinet, oscillating violently for 5 min to 60 min, and weighing a constant weight beaker; taking lower level oil phase from a dryer into the beaker, placing oil phase in a water bath for evaporating to dryness, transferring oil phase into an oven under constant temperature at least for 1 hour and taking out oil phase, and then cooling oil phase in the dryer to the room temperature; and quantitatively calculating the content X of siloxane in the hydrochloride acid. The measuring method solves the problem that siloxane is separated out from the hydrochloride acid and accumulates to block the production device.

Description

Technical field [0001] The invention relates to a method for measuring the content of hydrochloric acid and siloxane in the production process of organic silicon. In particular, it relates to a method for analyzing the siloxane content in hydrochloric acid in the production process of organosilicon by liquid phase extraction. Background technique [0002] Silicone products are one of the most widely used varieties in the world. According to its basic form, it can be divided into four categories, namely: ① silane (including downstream products silane coupling agent and siliconization reagent); ② silicone oil; ③ silicone rubber; ④ silicone resin. The last three types of products are silicone polymerization products, that is, downstream products. The latter not only has many varieties and brands, but can also be further processed into serialized and differentiated products and products with different forms, properties and uses. [0003] The currently developed organosilicon monomers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 王勇武唐荣娟明瑞杨
Owner LUZHOU NORTH CHEM IND
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