SU966075A1 - Binder - Google Patents

Description

1 The invention APPLIES TO construction materials and is intended. for production with yicauero, used in high strength refractory materials.

Phosphate is known in the host, including phosphoric acid, copper oxide and copper-nickel production waste. C The disadvantage of this is low activity.

The most common: the proposed technical solution is phosphate binder C2, with the following; the ratio of components, wt.%:

Aluminum oxide 2-7

Chromium or boron oxide 3-6

Basic carbonate

magnesium 3-7

Phosphoric acid

concentration of 50-90% Else

A disadvantage of the known binder is the reduction in adhesiveness during long-term storage and after 40-50 days the onset of crystallization.

The aim of the invention is to provide the possibility of long-term storage and an increase in the adhesive ability of the bond P {1 cent. /

(54) CONNECTING

This goal is achieved by the fact that it includes a shutter. the liquid, alumina hydrate to chromium or boron oxide, contains as a shutting liquid a product of processing phosphorus-containing sludge with the following ratio of components, wt.%:

ten

Recycled product

phosphorus-containing

75-84

sludge 6-23

Aluminum oxide 2-10

Chromium or boron oxide

15

The chemical composition of the product of processing phosphorus-containing sludge sludge, wt.%:

65-75

0; P12-0,025

Chlorides

20 0.013-0.033 Sulfates 0.001-0.01 Nitrates 0,0196-0.05 Iron

T heavy metals0.005-0.015

25 Yellow phosphorus 0.0076-0.01

Organic impurities 0.12-4.8 Phosphate-rich sludge processing product is a by-product of phosphorus plants.

The impurities of chlorides, nitrates, sulfates, iron of elemental phosphorus, heavy metals and organic impurities contained in the product of processing phosphorus-containing sludge, interacting with PijOy and phosphorus metals, form a complex polymer compound with stable properties when heated.

Introduction to the synthesis process from 75 to. 84% of the product of the processing of phosphorus-containing sludge, containing in its composition impurities, contributing to the formation of a stronger polymer bond, allows to obtain a binder. with high adhesiveness during long-term storage (more than a year) I The content in the binder of the phosphorus-containing processing product was less than 75% and does not provide for the complete dissolution of the components, which leads to rapid crystallization of the product and loss of its adhesiveness and durability.

The content in the binder of the product of processing phosphorus-containing sludge more than 84% does not ensure the formation of a strong polymer bond due to the excessive amount of the reaction plug of the liquid, which drastically reduces the viscosity of the binder and its adhesiveness.

Examples of specific embodiments of the invention.

Example 1. 75% of the phosphorus-containing sludge processing product is loaded into the synthesis tank, heated to. 23% alumina hydrate and 2.0% boron oxide (as boric acid) are gradually added to the continuous stirring and gradually heated to boiling. Boil until solid particles disappear.

The resulting homogeneous mass is maintained at boiling for 15–20 min, cooled to room temperature, and poured into a clean, dry container.

Binder ready for use.

Example 2. 79% of the phosphorus-containing sludge processing product is loaded into the synthesis tank, heated to 50 ° C and 15% alumina hydrate and 6% chromium oxide are subsequently added in small portions with 3% valence chromium. After the components are fully charged, the mixture is boiled for 60 minutes until the solid particles are completely dissolved.

The resulting homogeneous mass is maintained at boiling on low heat for 20–30 min, cooled to room temperature, and poured into a clean, dry one. capacity.

Binder ready for use.

Example H. 84% of the phosphorus-containing phosphate-containing product is loaded into the synthesis tank, heated to and gradually, with constant stirring, 6% of hydrated oxide and 10% of chromium oxide are introduced in small portions, subsequently reduced by formalin to 3-valent chromium. After the components have been fully charged, the mixture is boiled for 60 minutes until the solid particles completely dissolve. The resulting homogeneous mass is maintained at boiling on low heat for 20–30 min, cooled to room temperature, and poured into a dry clean container.

Binder ready for use.

The table presents the properties of the proposed composition and prototype.

No strength

8.9

9.9

8.9 9.9

5.9 9.0

9; b3; 5 9.2

10, O 9.5 10.4 Same 9.2 9.6 The determination of the adhesive ability of the binders is carried out when gluing the MOTHfcJX stack of building blocks of powder powder 52% (fraction less than 0/311 mm of refractory clay 9% and 39% The achieved positive adhesive properties and strength properties (by 25-40%), improve the quality of refractory masonry and increase the service life of thermal Units in lj5-2 pp. The use of the product of processing phosphorus-containing sludge - waste electrothermal production of elemental phosphorus allows get phosphate bond , having increased shear strength, 2 times cheaper / expanding the raw material base and utilizing waste that pollutes the environment with phosphorus. Invention Binder, including liquid, aluminum hydroxide and chromium or boron oxide, It is due to the fact that, in order to ensure the possibility of long-term storage and increase of adhesive capacity, it contains as a quenching liquid the product of phosphor-bent-holding sludge at the next .5 ratio of components, weight. %: Product of processing phosphorus-containing sludge .75-84 Aluminum oxide hydrate 6-23 Chromium or boron oxide 2-10 Sources of information taken into account during the examination 1. USSR author's certificate 753822, class C 04 V 29/02, 1978. 2 .. USSR author's certificate 497227, cl. From 01 to 25/26, 1975 (prototype).

Claims (2)

The claims of the " A binder comprising a closing fluid, alumina hydrate, and chromium or boron oxide, which is different in that, in order to provide long-term storage and an increase in adhesive ability, it contains a phosphorus-containing sludge processing product when mixing the following ratio of components! weight. % · " Phosphorus sludge processing product 75-84 Aluminum Oxide Hydrate 6-23 Oxide of chromium or boron 2-10 Sources of information taken into account during the examination 1. USSR author's certificate No. 753822, clich C 04 V 29/02/1978. 2 .. USSR Copyright Certificate No. 497227, cl. C 01 B 25/26, 1975 (prototype) Editor A. Khimchuk Compiled by 0. Motorina / Tehred J. Kastelevich Corrector Ό. Bilak Order 7771/36 Circulation 641 Subscription VNIIIPI of the State Committee of the USSR. for affairs of inventions and discoveries 113035, Moscow, Zh-35, Raushskaya nab., d. 4/5 Branch of PPP Patent, Uzhgorod, Project 4,