CN1113256A

CN1113256A - Release powder for concrete formation and its production method

Info

Publication number: CN1113256A
Application number: CN 95104908
Authority: CN
Inventors: 邬贵清
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-09
Filing date: 1995-05-09
Publication date: 1995-12-13

Abstract

The present invention relates to a release powder for moulding concrete and its production method. This release powder contains sodium soap and filler, which can be diluted by adding water in situ, and then applied on the form or pedestal to separate concrete from form or pedestal. The surface of the moulded concrete has no need of roughening by picking or sanding treatment to make after-construction. The invented release powder is made up mainly by using the wastes of oil and fat scraps from vegetable oil mill and meat-ware factory, tall oil from paper mill and alkali waste from chemical plant.

Description

Release powder for concrete formation and its production method

Behind the thin up, brushing is on template or pedestal surface at the scene for the separating powder of using when the present invention relates to a kind of concrete formation, this separating powder.Concrete after the moulding can be isolated with template and pedestal.The invention still further relates to the production method of this separating powder.

Construction industry releasing agent commonly used has two classes, promptly oily class: as vegetable and animals oils, mineral oil, oil in water emulsion, paraffin wax at present; Water quality class: as spent pulping liquor, suds, milk of lime etc.More than two class releasing agent weak points be contaminate environment, be not easy to accumulating, involve great expense, use and transport inconvenience.Even more serious is owing to use oily class releasing agent can make the concrete surface after the moulding be stained with greasy dirt, thereby causes and plaster in conjunction with not firm.For getting rid of the detrimentally affect that greasy dirt causes construction in later period, need cut a hole hair or sanding processing to concrete surface, this will be directed at claim for eot, and engineering cost increases.

Therefore, constantly enlarge the present situation that concrete formation proportion is increasing in the face of building quantity; development high-quality, inexpensive, the separating powder easily of drawing materials; being the surface quality after effectively protecting template and improving concrete formation, reducing effective behave of use cost, also is a big problem of construction industry.

First purpose of the present invention, the separating powder of using when providing a kind of concrete formation, this separating powder at the scene behind the thin up brushing on template or pedestal, thereby can make concrete and template or pedestal isolation after the moulding.This separating powder overcomes existing oily class and all weak points of water quality class releasing agent.

Second purpose of the present invention is to provide a kind of method of producing above-mentioned separating powder.

According to the present invention, the solution of above-mentioned first purpose is that separating powder of the present invention contains the sodium soap of 5%-90%, the stopping composition of 5%-85%.

According to the present invention, the solution of above-mentioned second purpose is that separating powder of the present invention is that following processing step generates:

At first the alicyclic organic with 5-85% adds in the reactor, the rosin that back adding 0-2% is dissolved in heating dissolves, adding 2-10% sodium hydroxide and/or 3-10% water glass again reacted about 2 hours down at about 95 ℃, add yellow soda ash 0-5% then successively, xylogen sodium sulfonate 0-2%, sodium-chlor 0-3%, thickening material 0-1%, and spent pulping liquor, lime causticization white clay, light calcium carbonate, talcum powder etc. increase and fill material 5-85%, carrying out brute force simultaneously stirred 2-4 hour, be warming up to 150～200 ℃ then and carry out drying again, the products solidifying postcooling carries out crushing packing.Above-mentioned per-cent refers to weight percent.

The temperature that above-mentioned reaction is required can reach by directly heating or heating indirectly, and what is called is directly heated and is meant reactor is heated with naked light, is to point to feed high-temperature gas in the reactor and heat indirectly.To solidifying the cooling of back product, realize by in reactor, feeding normal temperature air.

Advantages such as that separating powder of the present invention has is inexpensive, efficient, accumulating convenient, cost is low, do not corrode template, harmless, free from environmental pollution are applicable to the demoulding of concrete formation rear pattern plate under all temps.

Further specify the present invention with several examples below.

Example one:

Earlier 85% alicyclic organic is put into reactor, under normal pressure, be warming up to 95 ℃, add and to add 10% sodium hydroxide after 2% rosin dissolves again, stir simultaneously and carried out soda acid and saponification reaction 2 hours, then add 2% sodium lignosulfonate and 1% thickening material, and powerful the stirring 2-4 hour, be warming up to 150 ℃ then and carry out drying again, the products solidifying postcooling, the crushing packing warehouse-in.

Example two:

Earlier 50% alicyclic organic is put into reactor, under normal pressure, be warming up to 95 ℃, add 3% sodium hydroxide again, 10% water glass, under agitation carried out soda acid and saponification reaction about 2 hours, then add 5% yellow soda ash, 2% sodium-chlor reacted about 1 hour again, the lime causticization white clay of adding 30%, carry out brute force and stirred 2-3 hour, be warming up to 150 ℃ then and carry out drying, products solidifying postcooling, crushing packing warehouse-in.

Example three:

Organic grease 30% is put into reactor, under normal pressure, be warming up to 95 ℃, add sodium hydroxide 5%, water glass 20% under agitation carried out soda acid and saponification reaction 2 hours, then added paper pulp waste material 15% again and reacted 1 hour again, add 30% again and anyly can make the powdered weighting material, carry out brute force and stirred 2-3 hour, be warming up to 150 ℃ then and carry out drying again, products solidifying postcooling crushing packing warehouse-in.

Example four:

Alicyclic organic 5% is put into reactor and is warming up to 95 ℃, after adding rosin 2% dissolves, the tankage salkali waste 30%(salkali waste composition that adds alkali workshop, chemical plant mainly is sodium hydroxide, yellow soda ash, sodium-chlor etc.), stir simultaneously and add the suspended substance (including tall oil) 8% on the black liquor face between paper alkali recovery vehicle again, talcum powder 55% carries out brute force again and stirred 2-4 hour, is warming up to 150 ℃ and carries out drying, the products solidifying postcooling is pulverized, the packing warehouse-in.

Above-mentioned four examples, alicyclic organic can be the various tankage of vegetable oil mill, the various grease tankage of meat processing combine, the tall oil in the spent pulping liquor of paper mill, and the waste oil behind tannery's processing leather.

Stopping composition can be paper plant's lime causticization alkali tankage, white clay and talcum powder, light calcium carbonate, wilkinite, cigarette ash or the like.Can be used as stopping composition.

Claims

1, the separating powder used of a kind of concrete formation, brushing is characterized in that this kind separating powder contains the sodium soap of 5%-90%, the stopping composition of 5%-85% behind the thin up on template or pedestal at the scene.

According to the described separating powder of claim 1, it is characterized in that 2, above-mentioned stopping composition is meant xylogen, light calcium carbonate, white clay, talcum powder, paper pulp waste material.

3, production is according to the method for the described separating powder of claim 1, and its processing step comprises:

(1) at first with the alicyclic organic adding reactor internal heating of 5%-85%, dissolve the rosin that the back adds 0%-2%, and then add the sodium hydroxide of 2%-10% and/or the water glass of 3%-10%, reaction is about 2 hours under about 95 ℃ of temperature;

(2) then, add yellow soda ash 0%-5% successively, sodium lignosulfonate 0%-2%, sodium-chlor 0%-3%, thickening material 0%-1%, and add the spent pulping liquor of 5%-85% and/or lime causticization white clay and/or light calcium carbonate and/or talcum powder as stopping composition, carry out brute force stirring 2-4 hour simultaneously;

(3) be warming up to 150～200 ℃ at last and carry out drying treatment;

(4) treat the products solidifying postcooling, pulverize then and pack.

4, in accordance with the method for claim 3, it is characterized in that above-mentioned alicyclic organic can derive from the grease tankage and/or the soap stock material of vegetable oil mill.

5, in accordance with the method for claim 3, it is characterized in that above-mentioned grease can be the various grease tankage of meat processing combine.

6, in accordance with the method for claim 3, it is characterized in that above-mentioned grease can be the waste oil behind tannery's processing leather.

7, in accordance with the method for claim 3, it is characterized in that above-mentioned sodium hydroxide, yellow soda ash, sodium-chlor can be the tankage in alkali workshop, chemical plant, i.e. salkali waste.

8, in accordance with the method for claim 3, it is characterized in that, heating of the alicyclic organic in the reactor and other component realized by feed high-temperature gas in reactor.

9, in accordance with the method for claim 3, it is characterized in that, realize by in reactor, feeding normal temperature air for the cooling of solidifying the back product.

10, in accordance with the method for claim 3, it is characterized in that reactor is under the normal pressure all the time.