Process for Preparing Calcium Chloride from Ammonia-Soda Filter Mother Liquor (Invention Patent)

2026-04-16 10:59:50

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A national invention patent technology. The filtered mother liquor from the Solvay process for soda ash production contains a large amount of calcium chloride, which is traditionally discharged as waste liquid. This patented technology efficiently extracts calcium chloride solution from the filtered mother liquor through a specific process, addressing the environmental pressure of waste liquid treatment while achieving resource utilization of by-products. It opens up new profit growth points for soda ash enterprises using the Solvay process.

Suitable for the construction of calcium chloride production facilities by soda ash enterprises using the Solvay process.

Basic chemical raw material manufacturing

Environmental Protection and Comprehensive Resource Utilization

Chemical Engineering Technology Research and Development and Process Package

Pakistan

Southeast Asia

Russia

Kazakhstan

Kyrgyzstan

India

Middle East

China

Other

T - Technology & Patents

Process Retrofit of the Soda Ash Distillation System

2026-04-16 10:59:49

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Distillation is one of the most energy-intensive processes in soda ash production. Based on multiple proprietary technologies (vacuum distillation, sieve tray ammonia distillation tower, etc.), we provide process upgrade and retrofitting services for distillation systems in existing soda ash plants. Our retrofitting experience covers various areas including new energy-saving distillation methods, ammonia distillation system expansion, and mother liquor distillation process modification, with numerous successful retrofitting cases among major domestic soda ash producers.

We hold multiple utility model patents for sieve tray ammonia distillation towers, condensate distillation towers, and other equipment, offering one-stop retrofitting services from scheme comparison and selection to on-site commissioning for plant owners.

Basic chemical raw material manufacturing

Chlor-alkali and Salt Chemical Industry

Oman

Pakistan

Turkmenistan

Uzbekistan

Iran

India

Middle East

China

S - Site & Revamp

Petrochemical Engineering Design and Energy Conservation Assessment

2026-04-16 10:59:03

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Completed several representative projects in the petrochemical field, including energy-saving assessments for catalytic gasoline hydrogenation units, design of styrene storage and transportation facilities, and design of ethylene storage facilities. Among them, the design of the ethylene storage and transportation facility won the second prize for provincial excellent engineering design, and the energy-saving assessment report received the industry award for excellent engineering consulting achievements. Capable of undertaking services such as engineering design, energy-saving assessment, and dedicated safety facility design for petrochemical units, with solid technical accumulation in low-temperature storage facilities and hazardous chemical storage and transportation system design.

Petrochemical and Coal Chemical Industries

Engineering Design and Engineering Consulting

United Arab Emirates

Russia

Saudi Arabia

Iran

Middle East

China

Other

E - Engineering Design

Soda Ash Waste Liquid/Residue Comprehensive Treatment and Renovation

2026-04-16 10:58:26

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The Solvay process for soda ash production generates approximately 10 cubic meters of distillation waste liquid per ton of soda ash, making waste liquid treatment a common industry challenge. Leveraging multiple proprietary technologies (such as waste slurry cavity injection, waste slurry mixing, and comprehensive waste liquid treatment), we provide technical retrofit services for the integrated management of waste liquids and sludge to existing Solvay process soda ash enterprises.

We have completed waste liquid treatment retrofit projects of various scales domestically, including large-scale Solvay distillation waste liquid treatment projects with a capacity of one million tons. Depending on the owner's geological conditions, site constraints, and environmental requirements, we offer various technical solutions, including underground cavity injection, solid-liquid separation, and by-product recovery.

Basic chemical raw material manufacturing

Environmental Protection and Comprehensive Resource Utilization

Oman

Pakistan

Iraq

Iran

India

Middle East

China

S - Site & Revamp

Sodium Bicarbonate Carbonization Tower and Production Technology

2026-04-16 10:58:19

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Producing food-grade or industrial-grade baking soda (sodium bicarbonate) from soda ash mother liquor or refined sodium carbonate solution via a carbonation crystallization process. We hold a utility model patent for a "Carbonation Tower without a Cooling Section for Baking Soda Production." The optimized structural design of this tower improves gas-liquid contact efficiency and crystallization conditions, enhancing the particle size uniformity and yield of the baking soda product.

We have completed engineering designs for multiple baking soda projects domestically, with individual capacities ranging from 30,000 to 200,000 tons per year. Recently, we also participated in the design of a new project integrating CO₂ capture with baking soda co-production. Deliverables include the baking soda process package and data sheets for key equipment.

Basic chemical raw material manufacturing

Chemical Engineering Technology Research and Development and Process Package

Pakistan

Southeast Asia

Russia

Kazakhstan

Tajikistan

Iran

India

Middle East

China

Other

T - Technology & Patents

Fine Chemical and New Materials Engineering Design

2026-04-16 10:57:08

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Possesses diversified engineering design experience in the fields of fine chemicals and new materials. Completed engineering design projects for a wide range of products, including triisobutylaluminum plants, expandable polystyrene (EPS), flame-retardant thermal insulation materials, cyclized rubber, fluorine coatings, and photosensitive dry films. Among these, the technical renovation project for the triisobutylaluminum plant won the first prize for excellent engineering design at the municipal level, and the flame-retardant polystyrene thermal insulation material received a national invention patent. We provide full-process services ranging from conceptual design and preliminary design to construction drawing design, covering all specialties including process, equipment, piping, instrumentation and electrical, and safety. Fine chemical projects focus on the reaction safety of materials, explosion-proof zoning, and design compliance with environmental standards.

Fine Chemical Manufacturing

New Materials and Polymer Materials

Engineering Design and Engineering Consulting

Southeast Asia

Kazakhstan

India

Middle East

China

Other

E - Engineering Design

CO₂ Capture and Comprehensive Utilization Retrofit

2026-04-16 10:56:51

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Responding to the "dual carbon" strategic targets, active technical practices have been carried out in recent years in the direction of carbon dioxide capture and comprehensive utilization. The related projects that have been completed include: boiler flue gas CO2 capture and solid waste comprehensive utilization technical retrofit, soda ash unit CO2 emission reduction and energy-saving environmental protection technical retrofit, CO2 capture and sodium bicarbonate coproduction demonstration project design, etc.

Services can be provided for operating units in chemical, power and other industries, including scheme design and engineering design for CO2 capture systems. The captured CO2 can be used for soda ash or sodium bicarbonate production, achieving resource utilization of carbon emissions.

Basic chemical raw material manufacturing

Environmental Protection and Comprehensive Resource Utilization

Oman

Pakistan

Iraq

Iran

India

Indonesia

Middle East

China

C - Construction

Proprietary Technology for Soda Ash Steam Calcination Furnace

2026-04-16 10:56:50

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The Φ2500~Φ3000 specification external return caustic soda steam calcination furnace is the core equipment in the calcination process of soda ash production and has been recognized by the industry association as proprietary technology. This calcination furnace adopts indirect steam heating to decompose sodium bicarbonate (heavy alkali) into finished soda ash products, featuring high thermal efficiency, stable product quality, and reliable operation. The relevant technical achievements were awarded the first prize of provincial scientific and technological progress in the early stages.

We provide supporting design data packages for the calcination furnace, equipment processing drawings, installation guidance, and commissioning services. Different specifications can be customized according to production capacity requirements.

Basic chemical raw material manufacturing

Chemical Engineering Technology Research and Development and Process Package

Chemical equipment manufacturing

Pakistan

Kazakhstan

Tajikistan

India

Middle East

China

Other

T - Technology & Patents

Safety Rectification and Compliance Retrofitting of Chemical Plants

2026-04-16 10:55:47

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We provide one-stop safety rectification services for chemical enterprises, addressing hidden hazards identified during safety inspections. Our services cover hazard diagnosis, rectification plan preparation, and construction drawing design. This includes redivision of explosion-proof zones, fire protection system renovation, alarm and interlock system upgrades, and completion of safety facilities.

Over the past fifteen years, we have successfully completed nearly 200 safety-related projects spanning soda ash, salt chemical, fine chemical, petrochemical, and new materials industries. Our service model is flexible, allowing us to tailor design delivery schedules based on hazard urgency and the owner's production planning.

Engineering Design and Engineering Consulting

Operations

Maintenance

and Technical Services

United Arab Emirates

Oman

Pakistan

Iran

India

Middle East

China

S - Site & Revamp

Complete Technology for the Treatment of Ammonia-Soda Distillation Waste Liquid

2026-04-16 10:55:23

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The ammonia-soda process for soda ash production generates large volumes of distillation waste liquid containing calcium chloride, posing a long-standing environmental challenge for the industry. Addressing this critical issue, several proprietary technologies recognized by industry associations have been developed, including underground cavity injection technology for waste slurry, waste slurry mixing technology, and comprehensive waste liquid treatment technology. These solutions cover the complete technical chain from waste liquid pretreatment and solid-liquid separation to final disposal.

These technologies have been successfully applied and verified in waste liquid treatment projects at multiple large-scale soda ash enterprises domestically, with related projects receiving provincial-level science and technology progress awards. Tailored technical solutions can be provided based on the client's specific conditions, including geological factors, emission standards, and site constraints. Deliverables include the waste liquid treatment process package, basic design, and operation manuals.

Basic chemical raw material manufacturing

Environmental Protection and Comprehensive Resource Utilization

Chemical Engineering Technology Research and Development and Process Package

Oman

Pakistan

Southeast Asia

Iran

India

Middle East

China

T - Technology & Patents

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