SU399474A1 - METHOD FOR PREPARATION OF THE METHOD-CLEARING CEMENT - Google Patents

METHOD FOR PREPARATION OF THE METHOD-CLEARING CEMENT

Info

Publication number
SU399474A1
SU399474A1 SU1701220A SU1701220A SU399474A1 SU 399474 A1 SU399474 A1 SU 399474A1 SU 1701220 A SU1701220 A SU 1701220A SU 1701220 A SU1701220 A SU 1701220A SU 399474 A1 SU399474 A1 SU 399474A1
Authority
SU
USSR - Soviet Union
Prior art keywords
cement
clearing
preparation
cotton
hydrolysis
Prior art date
Application number
SU1701220A
Other languages
Russian (ru)
Inventor
Л. Ш. Анаркулова А. К. Рахимов Ш. М. Рахимбаев
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1701220A priority Critical patent/SU399474A1/en
Application granted granted Critical
Publication of SU399474A1 publication Critical patent/SU399474A1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

1one

Изобретение относитс  к способам приготовлени  замедлителей схватывани  цементов .This invention relates to methods for preparing cement setting retarders.

Известен способ приготовлени  замедлител  схватывани  цементов путем гидролиза пентозансодержащего сырь , например хлопковой шелухи с ее последующим окислением.There is a known method of preparing a retarder for setting cement by hydrolysis of a pentosan-containing raw material, for example cotton husk, with its subsequent oxidation.

Цель изобретени  - совмещение процессов гидролиза и окислени .The purpose of the invention is to combine the processes of hydrolysis and oxidation.

Это достигаетс  тем, что смоченную водой хлопковую щелуху, обрабатывают азотной кислотой удельного веса 1,33 г/см в течение 1,5-2 час при 70-80°, а затем нейтрализуют до рН среды, равной 7-9.This is achieved in that cotton snaps moistened with water are treated with nitric acid with a specific gravity of 1.33 g / cm for 1.5-2 hours at 70-80 ° and then neutralized to a pH of 7-9.

Хлопковую шелуху, смоченную водой, обрабатывают азотной кислотой уд. веса 1,33 г/см при соотношении компонентов 2:1.Cotton husks moistened with water, treated with nitric acid beats. weight 1.33 g / cm with a 2: 1 ratio of components.

Предмет изобретени Subject invention

Способ приготовлени  замедлител  схватывани  цементов путем гидролиза пентозансодержащего сырь , например, хлопковой щелухи с ее последующим окислением, отличающийс  тем, что, с целью совмещени  процессов гидролиза и окислени , смоченную водой хлопковую щелуху обрабатывают азотной кислотой удельного веса 1,33 г/см в течение 1,5-2 час при 70-80°, а затем нейтрализуютA method of preparing a retarder for setting cement by hydrolysis of a pentosan-containing raw material, such as cotton snap, with its subsequent oxidation, characterized in that, in order to combine the processes of hydrolysis and oxidation, the wet cotton snap is wetted with nitric acid for 1.33 g / cm. , 5-2 hours at 70-80 °, and then neutralized

до рН среды, равной 7-9.to pH of the medium equal to 7-9.

SU1701220A 1971-09-28 1971-09-28 METHOD FOR PREPARATION OF THE METHOD-CLEARING CEMENT SU399474A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1701220A SU399474A1 (en) 1971-09-28 1971-09-28 METHOD FOR PREPARATION OF THE METHOD-CLEARING CEMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1701220A SU399474A1 (en) 1971-09-28 1971-09-28 METHOD FOR PREPARATION OF THE METHOD-CLEARING CEMENT

Publications (1)

Publication Number Publication Date
SU399474A1 true SU399474A1 (en) 1973-10-03

Family

ID=20489075

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1701220A SU399474A1 (en) 1971-09-28 1971-09-28 METHOD FOR PREPARATION OF THE METHOD-CLEARING CEMENT

Country Status (1)

Country Link
SU (1) SU399474A1 (en)

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