Preparation method of high-salt brine inhibitor

A technology of inhibitors and brine, applied in chemical instruments and methods, mechanical equipment, and other chemical processes, can solve problems such as blockage and scaling, achieve the effects of reducing costs, prolonging the feeding cycle, and preventing salt formation

Active Publication Date: 2020-02-18
CHANGSHA DESIGN & RES INST OF CHEM IND MIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the above deficiencies, and provide a preparation method of high-salt brine inhibitor. Scaling and blockage on the surface of pipes, pumps and other equipment, and the product is non-toxic and easy to degrade, harmless to the salt lake area and salt lake products

Method used

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  • Preparation method of high-salt brine inhibitor
  • Preparation method of high-salt brine inhibitor
  • Preparation method of high-salt brine inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] First add 1g of sodium ferrocyanide, 1g of sodium dodecylbenzenesulfonate and 5g of polymer tube lubricant into the crucible, stir and mix evenly, then pour 0.7g of bio-glue and stir and mix evenly again; take another test tube , used to prepare the curing agent, pour 8g white sugar, 5g water, 0.005g gelatin, 0.001g citric acid and 0.005g glass crisp into it, place it in an oil bath at 120°C while stirring and heat it, when the mixture appears fine and dense When the foam is in a molten state, quickly pour it into the above-mentioned crucible, stir it evenly with a glass cup, and place it at room temperature (25°C) to solidify for 2 hours. After the sample is fully dried, it is coarsely crushed to obtain a high-salt brine inhibitor.

[0032] Weigh 250g of sodium chloride and 600mL of water into a 1L beaker, and stir at room temperature at 25°C until the sodium chloride is no longer dissolved. At this time, the solution reaches a supersaturated state. Take 400mL of the up...

Embodiment 2

[0034] First add 1g of sodium ferrocyanide, 1g of sodium dodecylbenzenesulfonate and 5g of polymer tube lubricant into the crucible, stir and mix evenly, then pour 0.7g of bio-glue and stir and mix evenly again; take another test tube , used to prepare the curing agent, pour 8g of sugar, 5g of water, 0.02g of gelatin, 0.012g of citric acid and 0.02g of glass brittle into it, place it in an oil bath at 120°C while stirring and heat it, when the mixture appears fine and dense When the foam is in a molten state, quickly pour it into the above-mentioned crucible, stir it evenly with a glass cup, and put it at room temperature (25°C) to solidify for 3 hours. After the sample is fully dried, it is coarsely crushed to obtain a high-salt brine inhibitor.

[0035] Weigh 250g of sodium chloride and 600mL of water into a 1L beaker, and stir at room temperature at 25°C until the sodium chloride is no longer dissolved. At this time, the solution reaches a supersaturated state. Take 400mL of t...

Embodiment 3

[0037] First add 1g of sodium ferrocyanide, 1g of sodium dodecylbenzenesulfonate and 5g of polymer tube lubricant into the crucible, stir and mix evenly, then pour 0.7g of bio-glue and stir and mix evenly again; take another test tube , for the preparation of curing agent, pour 8g of sugar and 5g of water into it, place it in an oil bath at 120°C while stirring and heat it, when the mixture appears fine and dense foam and is in a molten state, quickly pour it into the above crucible , stirred evenly with a glass cup, and cured at room temperature (25°C) for 3 hours. After the sample was fully dried, it was coarsely pulverized to obtain a high-salt brine inhibitor.

[0038] Weigh 250g of sodium chloride and 600mL of water into a 1L beaker, and stir at room temperature at 25°C until the sodium chloride is no longer dissolved. At this time, the solution reaches a supersaturated state. Take 400mL of the upper saturated sodium chloride solution and pour it into a 500mL beaker Take ...

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Abstract

The invention discloses a preparation method of a high-salt brine salt inhibitor. The preparation method comprises the following steps: uniformly mixing a salt-inhibiting main agent and a salt-inhibiting auxiliary agent, adding a curing agent, curing, and pulverizing to obtain the high-salt brine inhibitor, wherein the salt-inhibiting main agent comprises ferrocyanide, sodium dodecyl benzene sulfonate and a polymer tube lubricating agent, the salt-inhibiting auxiliary agent is biogel, and the curing agent is modified monosaccharide, modified disaccharide or/and modified polysaccharide. The preparation method is simple in process, the prepared product can effectively inhibit salt deposition on the surfaces of devices such as pipelines and pumps in the brine transportation process, in addition, the components are non-toxic and easy to degrade, the harm to the environment of ecological weak areas such as salt lakes is effectively reduced, and the produced product is harmless.

Description

technical field [0001] The invention relates to the field of salt lake brine exploitation, in particular to a preparation method of a high-salt brine inhibitor. Background technique [0002] Many chemical fields, such as salt lake brine mining, salt production, daily chemical, petrochemical and other fields, involve the use and transshipment of brine. Since brine is a high-concentration brine containing various chemical components, one or more of the salts are saturated, and in most cases the NaCl in the brine is in a saturated state. During the process of extracting or transporting brine, the change of temperature and pressure will lead to the precipitation of saturated salts such as table salt and adhere to the pipe wall, the diameter of the pipeline and the surface of pumps and other equipment. As the crystals continue to grow, resulting in stuck Problems such as scaling and blockage of pumps and pipelines may lead to a decrease in output, or require operations to remove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/00C01D3/06F17D1/08F17D5/00F16L55/24
CPCC09K3/00C01D3/06F17D1/08F17D5/00F16L55/24Y02A40/90
Inventor 娄金东谢超孙泽妍冯文平谭若宁梁晓玲高文远杨清
Owner CHANGSHA DESIGN & RES INST OF CHEM IND MIN
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