CN105668814A

CN105668814A - Preparation method of polyhydric alcohol phosphate ester scale inhibitor

Info

Publication number: CN105668814A
Application number: CN201410672226.6A
Authority: CN
Inventors: 何猛
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-22
Filing date: 2014-11-22
Publication date: 2016-06-15

Abstract

The invention discloses a preparation method of a polyhydric alcohol phosphate ester scale inhibitor. The method belongs to the field of chemical engineering and employs the following raw materials, by weight, 52% of triethanolamine, 12-14% of polyoxyethylene ether, 13-15% of ethylene glycol monoethyl ether, 10% of glycerol, 5% of ethylene glycol, and 6% of P2O5. The polyhydric alcohol phosphate ester scale inhibitor is prepared by blending the raw materials at certain temperature. The method is simple in process, is mild in reaction conditions, is low in production cost and is good in product quality. The scale inhibitor is mainly used as a corrosion and scale inhibitor for industrial water treatment.

Description

A kind of preparation method of PAPE antisludging agent

Technical field

Product of the present invention belongs to chemical field, the preparation method particularly relating to a kind of PAPE antisludging agent.

Background technology

Polyhydric alcohol phosphonate ester is a kind of water treatment agent, outward appearance is colourless or yellow transparent liquid, owing to molecule introducing multiple polyoxyethylene groups, not only there is good corrosion inhibition, also there is good scale-inhibiting properties, scale inhibition and silt to calcium dirt have stronger dispersibility, thus to the calcium carbonate in water, the difficulty soluble salt depositions such as calcium sulfate have excellent scale effect, to barium in water, strontium dirt deposition has excellent inhibitory action, steel are had cathodic protection effect, with polycarboxylate, organic phosphonate, inorganic phosphate, the water stabilizers such as zinc salt are miscible well, it is mainly applicable to the antisludging agent that oil-field flooding gathers, the corrosion inhibiting and descaling agent that industrial colling processes, it makes consumption different and different with process conditions because of water quality, as antisludging agent. the present invention is with triethanolamine, polyoxyethylene ether, ethylene glycol monoethyl ether, glycerol, ethylene glycol, phosphorus pentoxide for raw material, PAPE antisludging agent is prepared for reactor with chemical reaction kettle, it is simple that this production method has technique, reaction condition is gentle, the series of advantages such as production cost is low, good product quality.

Summary of the invention

The preparation method that the problem to be solved in the present invention is to provide a kind of PAPE antisludging agent, the raw material producing the use of this product is by weight ratio: triethanolamine 52%, polyoxyethylene ether 12%-14%, ethylene glycol monoethyl ether 13%-15%, glycerol 10%, ethylene glycol 5%, phosphorus pentoxide 6%.

The present invention can be achieved through the following technical solutions:

(1) triethanolamine of formula ratio being added chemical reaction kettle, warming while stirring, to 80 DEG C-82 DEG C, now adds the polyoxyethylene ether of formula ratio, ethylene glycol monoethyl ether, glycerol, ethylene glycol slowly, and insulated and stirred stirs 1 hour.

(2) stirring is continued, the phosphorus pentoxide of formula ratio is added while stirring in chemical reaction kettle, in still, the reaction of liquid and phosphorus pentoxide causes that in still, temperature of liquid raises, control the interpolation speed of phosphorus pentoxide and then control temperature in the kettle between 135-138 DEG C, stop stirring insulation reaction 1.1-1.3 hour after continuing stirring 0.5 hour, be cooled to after after room temperature and obtain finished product.

The further technical scheme of the present invention is:

The reaction temperature in chemical reaction kettle described in step (1) is 81 DEG C.

The insulation reaction temperature in chemical reaction kettle described in step (2) is 136.5 DEG C.

The invention has the beneficial effects as follows: the preparation method providing a kind of PAPE antisludging agent, the method has the advantages such as technique is simple, reaction condition is gentle, production cost is low, good product quality, and product mainly does the corrosion inhibiting and descaling agent use that water for industrial use processes.

Detailed description of the invention

Embodiment 1

Chemical reaction kettle is added by accounting for the triethanolamine that total amount is 52%, warming while stirring is to 80 DEG C, now adding slowly and account for polyoxyethylene ether that total amount is 12%, account for ethylene glycol monoethyl ether that total amount is 15%, account for glycerol that total amount is 10%, account for the ethylene glycol that total amount is 5%, insulated and stirred stirs 1 hour; Continue stirring, add in chemical reaction kettle while stirring and account for the phosphorus pentoxide that total amount is 6%, in still, the reaction of liquid and phosphorus pentoxide causes that in still, temperature of liquid raises, control the interpolation speed of phosphorus pentoxide and then control still interior reaction temperature at 135 DEG C, stop stirring insulation reaction 1.3 hours after continuing stirring 0.5 hour, be cooled to after after room temperature and obtain finished product.

Embodiment 2

Chemical reaction kettle is added by accounting for the triethanolamine that total amount is 52%, warming while stirring is to 81 DEG C, now adding slowly and account for polyoxyethylene ether that total amount is 13%, account for ethylene glycol monoethyl ether that total amount is 14%, account for glycerol that total amount is 10%, account for the ethylene glycol that total amount is 5%, insulated and stirred stirs 1 hour; Continue stirring, add in chemical reaction kettle while stirring and account for the phosphorus pentoxide that total amount is 6%, in still, the reaction of liquid and phosphorus pentoxide causes that in still, temperature of liquid raises, control the interpolation speed of phosphorus pentoxide and then control still interior reaction temperature between 136.5 DEG C, stop stirring insulation reaction 1.2 hours after continuing stirring 0.5 hour, be cooled to after after room temperature and obtain finished product.

Embodiment 3

Chemical reaction kettle is added by accounting for the triethanolamine that total amount is 52%, warming while stirring is to 82 DEG C, now adding slowly and account for polyoxyethylene ether that total amount is 14%, account for ethylene glycol monoethyl ether that total amount is 13%, account for glycerol that total amount is 10%, account for the ethylene glycol that total amount is 5%, insulated and stirred stirs 1 hour; Continue stirring, add in chemical reaction kettle while stirring and account for the phosphorus pentoxide that total amount is 6%, in still, the reaction of liquid and phosphorus pentoxide causes that in still, temperature of liquid raises, control the interpolation speed of phosphorus pentoxide and then control still interior reaction temperature between 138 DEG C, stop stirring insulation reaction 1.1 hours after continuing stirring 0.5 hour, be cooled to after after room temperature and obtain finished product.

Claims

1. the preparation method of a PAPE antisludging agent, the raw material used includes by weight ratio: triethanolamine 52%, polyoxyethylene ether 12%-14%, ethylene glycol monoethyl ether 13%-15%, glycerol 10%, ethylene glycol 5%, phosphorus pentoxide 6%, it is characterised in that:

(1) triethanolamine of formula ratio being added chemical reaction kettle, warming while stirring, to 80 DEG C-82 DEG C, now adds the polyoxyethylene ether of formula ratio, ethylene glycol monoethyl ether, glycerol, ethylene glycol slowly, and insulated and stirred stirs 1 hour;

2. the preparation method of PAPE antisludging agent according to claim 1, it is characterised in that: the reaction temperature in chemical reaction kettle described in step (1) is 81 DEG C.

3. the preparation method of PAPE antisludging agent according to claim 1, it is characterised in that: the insulation reaction temperature in chemical reaction kettle described in step (2) is 136.5 DEG C.